CN110201429B - Filter and method for removing byproduct paraffin in methanol production by filtering - Google Patents
Filter and method for removing byproduct paraffin in methanol production by filtering Download PDFInfo
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- CN110201429B CN110201429B CN201910576798.7A CN201910576798A CN110201429B CN 110201429 B CN110201429 B CN 110201429B CN 201910576798 A CN201910576798 A CN 201910576798A CN 110201429 B CN110201429 B CN 110201429B
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- Prior art keywords
- paraffin
- discharge pipe
- tank body
- methanol
- liquid discharge
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 195
- 239000012188 paraffin wax Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000006227 byproduct Substances 0.000 title claims description 9
- 238000001914 filtration Methods 0.000 title description 9
- 239000007788 liquid Substances 0.000 claims abstract description 117
- 238000004804 winding Methods 0.000 claims abstract description 53
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 16
- 238000005192 partition Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000011143 downstream manufacturing Methods 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001112 coagulating effect Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 230000008929 regeneration Effects 0.000 abstract description 2
- 238000011069 regeneration method Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 239000001993 wax Substances 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Filtering Materials (AREA)
Abstract
The invention relates to a filter, which comprises a tank body and a wire winding pipe, wherein the wire winding pipe is arranged in the tank body, and porcelain balls are filled in the wire winding pipe; the tank body is provided with a liquid inlet pipeline and a liquid outlet pipeline above and below the wire winding pipe respectively. The beneficial effects of the invention are as follows: through accelerating paraffin and coagulating, the mode of increase solid paraffin particle diameter promotes paraffin filter effect to be convenient for boil wax regeneration used repeatedly, in addition, can improve the filter effect of paraffin in the methyl alcohol greatly, effectively prevent pipeline and the equipment jam of low reaches process, improve the methyl alcohol product purity, avoid loss and the waste of conventional paraffin removal measure.
Description
Technical Field
The invention relates to the field of methanol filtration, in particular to a filter and a method for removing byproduct paraffin in methanol production by filtration.
Background
Introduction to the industrial methanol production process: the mixed gas of carbon monoxide and hydrogen is prepared into gaseous methanol under the conditions of copper-based catalyst, 6-9MPa and 230-270 ℃ in a certain proportion, the gaseous methanol is cooled to 40 ℃ by a water cooler to become liquid methanol (crude methanol), and the crude methanol enters a subsequent working section for rectification.
In the methanol production process, a large amount of paraffin wax can be produced as a byproduct, the melting point of the paraffin wax is about 47-64 ℃, and the crude methanol after passing through a water cooler inevitably entrains a large amount of paraffin wax, and even forms viscous liquid. The conventional filter has poor filtration effect on the viscous paraffin methanol solution, and paraffin adheres to the pipelines and equipment in the subsequent process to cause blockage and stop. In addition, the methanol byproduct paraffin has a plurality of reasons and treatment methods, but has huge cost and complex construction, and causes great waste and loss.
Disclosure of Invention
The invention aims to solve the technical problem of providing a filter and a method for removing byproduct paraffin in methanol production by filtering, so as to overcome the defects in the prior art.
The technical scheme for solving the technical problems is as follows: a filter comprises a tank body and a wire winding pipe, wherein the wire winding pipe is arranged in the tank body, and porcelain balls are filled in the wire winding pipe; the tank body is provided with a liquid inlet pipeline and a liquid outlet pipeline above and below the wire winding pipe respectively.
On the basis of the technical scheme, the invention can be improved as follows.
In the scheme, the diameter of the porcelain ball is 1 mm-10 mm.
In the scheme, the wire winding width of the wire winding pipe is 0.5 mm-2 mm, and the wire winding gap is 0.1 mm-0.5 mm.
In the scheme, a steam supply port is arranged on the liquid inlet pipeline and/or the tank body, and the steam supply port is connected with steam supply equipment; the tank body is provided with a thermometer.
In the above scheme, the number of the steam supply ports arranged on the liquid inlet pipeline is 1.
In the scheme, the tank body is provided with a plurality of steam supply ports at the middle part and the lower part, and the wire winding pipe is positioned at the middle lower part of the tank body.
In the above scheme, a plurality of steam supply ports arranged in the middle of the tank body and a plurality of steam supply ports arranged in the lower part of the tank body are all in annular arrangement, and all the steam supply ports face the wire winding pipe.
In the scheme, the number of the steam supply ports arranged in the middle of the tank body and the number of the steam supply ports arranged in the lower part of the tank body are 4.
In the scheme, the tank body is provided with the safety valve.
In the above-mentioned scheme, the jar body includes jar body, upper cover, upper flange, lower flange, bolt and baffle, and inside cavity of upper cover, lower extreme opening, upper flange setting are at the open end of upper cover, and the inside cavity of jar body, upper end opening, lower flange setting are connected through a plurality of bolts at the open end of jar body, upper flange and lower flange, and the baffle setting is between upper flange and lower flange, and the wire winding pipe is in the inner chamber of jar body, and the upper end of wire winding pipe is connected with the baffle.
In the above scheme, the fluid-discharge pipe includes main fluid-discharge pipe, first branch fluid-discharge pipe, second branch fluid-discharge pipe, third branch fluid-discharge pipe, first ooff valve, second ooff valve and third ooff valve, the one end of main fluid-discharge pipe is linked together with the bottom of jar body, the other end of main fluid-discharge pipe is linked together with the feed liquor end of first branch fluid-discharge pipe, the feed liquor end of second branch fluid-discharge pipe and the feed liquor end of third branch fluid-discharge pipe respectively, the play liquid end of first branch fluid-discharge pipe is linked together with paraffin collecting vat, the play liquid end of second branch fluid-discharge pipe is linked together with refined methanol and goes the low reaches process, the play liquid end of third branch fluid-discharge pipe is linked together with methanol and goes underground tank, first ooff valve, second ooff valve and third ooff valve set up respectively on first branch fluid-discharge pipe, second branch fluid-discharge pipe and third branch fluid-discharge pipe.
In the scheme, a differential pressure meter is arranged between the liquid inlet pipeline and the main liquid outlet pipe.
A method for removing byproduct paraffin in the production of filtered methanol, which comprises the following steps:
S100, conveying paraffin methanol liquid into a tank body through a liquid inlet pipeline, condensing paraffin in the paraffin methanol liquid after passing through a wire winding pipe and a porcelain ball in the tank body to obtain methanol, and sequentially discharging the methanol to a refined methanol downstream process through a main liquid discharge pipe and a second branch liquid discharge pipe;
S200, after a certain amount of paraffin is condensed, stopping conveying paraffin methanol liquid into a tank body through a liquid inlet pipeline, closing a second switching valve, after methanol in the tank body is sequentially discharged to a methanol underground tank through a main liquid discharge pipe and a third branch liquid discharge pipe, closing the third switching valve, opening a first switching valve on a first branch liquid discharge pipe, starting steam supply equipment, conveying steam with the pressure of 0.2 Mpa-1.1 Mpa and the temperature of 120-188 ℃ into the tank body through a steam supply port by the steam supply equipment, melting the condensed paraffin, discharging the paraffin into a paraffin collecting tank through the first branch liquid discharge pipe, and closing the steam supply equipment and the first switching valve after the paraffin is completely melted;
s300, recycling S100 and S200 to filter the paraffin methanol liquid.
The beneficial effects of the invention are as follows: through accelerating paraffin and coagulating, the mode of increase solid paraffin particle diameter promotes paraffin filter effect to be convenient for boil wax regeneration used repeatedly, in addition, can improve the filter effect of paraffin in the methyl alcohol greatly, effectively prevent pipeline and the equipment jam of low reaches process, improve the methyl alcohol product purity, avoid loss and the waste of conventional paraffin removal measure.
Drawings
FIG. 1 is a schematic view of a filter according to the present invention;
FIG. 2 is a view showing the fitting of a wire winding tube to a separator;
fig. 3 is an application diagram of the combined use of two filters.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
As shown in fig. 1 and 2, the filter comprises a tank body 1 and a wire winding pipe 2, wherein the wire winding pipe 2 is arranged in the tank body 1, and porcelain balls are filled in the wire winding pipe 2; the tank 1 is provided with a liquid inlet pipe 111 and a liquid outlet pipe 121 above and below the wire winding pipe 2, and paraffin methanol liquid enters the tank 1 from the liquid inlet pipe 111 and is then discharged from the liquid outlet pipe 121 after passing through the wire winding pipe 2.
The diameter of the porcelain ball is 1 mm-10 mm, the porcelain ball is used for accelerating the aggregation of paraffin and increasing the filtering effect, and the porcelain ball is a filling material of a catalyst bed layer in the methanol production process.
The wire winding tube 2 requires: the wire winding width is 0.5 mm-2 mm, the wire winding gap is 0.1 mm-0.5 mm, the diameter length can be selected according to the design flow of the filter, the length and width of the wire winding pipe 2 can be adjusted according to the design flow of the device and the operating pressure, the wire winding can be started only by ensuring that the wire winding pipe is separated from the partition plate 150 by 30mm, the wire winding pipe 2 is welded on the partition plate 150 conveniently in secondary reservation, the wire winding pipe 2 with the size in fig. 2 can only ensure the flow of 40t/h, the flow is increased, the number or the volume of the wire winding pipe 2 needs to be increased, but the mechanical strength of the wire winding pipe 2 needs to be considered under the large pressure difference when the volume is increased.
A thermometer 4 is arranged on the tank body 1, and the measuring range of the thermometer 4 is 0-200 ℃.
The liquid inlet pipeline 111 and/or the tank body 1 is provided with a steam supply port 3, the steam supply port 3 is connected with a steam supply device, the pressure of steam supplied to the steam supply port 3 by the steam supply device is more than or equal to 0.5Mpa, and is usually preferably 0.5Mpa, the supplied steam is mainly used for melting paraffin by using the steam, the filter is ensured to be reused, and the filter is not required to be disassembled for cleaning.
In the present embodiment, the steam supply ports 3 are preferably provided in both the liquid inlet pipe 111 and the tank 1, and in general, the number of the steam supply ports 3 provided in the liquid inlet pipe 111 is 1, and the tank 1 is provided with a plurality of steam supply ports 3 in the middle and lower portions thereof, and the wire winding pipe 2 is positioned in the middle and lower portion of the tank 1.
The steam supply ports 3 arranged in the middle of the tank body 1 and the steam supply ports 3 arranged in the lower part of the tank body 1 are all in annular arrangement, each steam supply port3 faces the wire winding pipe 2, the number of the steam supply ports 3 arranged in the middle of the tank body 1 and the number of the steam supply ports 3 arranged in the lower part of the tank body 1 are all preferably 4, the 4 steam supply ports 3 arranged in the middle of the tank body 1 are uniformly distributed, namely, the included angle between each steam supply port3 is 90 degrees, and the 4 steam supply ports 3 arranged in the lower part of the tank body 1 are uniformly distributed, namely, the included angle between each steam supply port3 is 90 degrees.
The tank body 1 is provided with a safety valve 160 for preventing paraffin methanol liquid in the front working section from being overpressurized and damaging internal parts. Because the filter medium is methanol, the design pressure of the tank body 1 is 1.0Mpa, the design temperature is 200 ℃, and the material is 316L.
The tank body 1 comprises a tank body 110, an upper sealing head 120, an upper flange 130, a lower flange 140, bolts and a partition plate 150, wherein the upper sealing head 120 is hollow and is provided with an opening at the lower end, the upper flange 130 is arranged at the opening end of the upper sealing head 120, the tank body 110 is hollow and is provided with an opening at the upper end, the lower flange 140 is arranged at the opening end of the tank body 110, the upper flange 130 is connected with the lower flange 140 through a plurality of bolts, the partition plate 150 is arranged between the upper flange 130 and the lower flange 140, a wire winding pipe 2 is arranged in an inner cavity of the tank body 110, the upper end of the wire winding pipe 2 is connected with the partition plate 150, the partition plate 150 can bear a pressure difference of 1.0Mpa, a supporting pipe can be additionally arranged at the lower part of the partition plate 150 when necessary, and a round hole is formed in the center of the partition plate 150 so as to facilitate welding of the wire winding pipe 2.
The liquid discharge pipe 121 includes a main liquid discharge pipe 1211, a first branch liquid discharge pipe 1212, a second branch liquid discharge pipe 1213, a third branch liquid discharge pipe 1216, a first switch valve 1214, a second switch valve 1215 and a third switch valve 1217, one end of the main liquid discharge pipe 1211 is communicated with the bottom of the tank 1, the other end of the main liquid discharge pipe 1211 is respectively communicated with the liquid inlet end of the first branch liquid discharge pipe 1212, the liquid inlet end of the second branch liquid discharge pipe 1213 and the liquid inlet end of the third branch liquid discharge pipe 1216, the liquid outlet end of the first branch liquid discharge pipe 1212 is communicated with the paraffin collecting tank, the liquid outlet end of the second branch liquid discharge pipe 1213 is connected with the refined methanol going downstream process, the liquid outlet end of the third branch liquid discharge pipe 1216 is communicated with the methanol going underground tank, and the first switch valve 1214, the second switch valve 1215 and the third switch valve 1217 are respectively arranged on the first branch liquid discharge pipe 1212, the second branch liquid discharge pipe 1213 and the third branch liquid discharge pipe 1216.
A differential pressure meter 5 is provided between the liquid inlet pipe 111 and the main liquid discharge pipe 1211.
A method for removing byproduct paraffin in the production of filtered methanol, which comprises the following steps:
s100, conveying paraffin methanol liquid into a tank body 1 through a liquid inlet pipe 111, condensing paraffin in the paraffin methanol liquid after passing through a wire winding pipe 2 and a porcelain ball in the tank body 1 to obtain methanol, and discharging the methanol to a refined methanol downstream process through a main liquid discharge pipe 1211 and a second branch liquid discharge pipe 1213 in sequence;
S200, after a certain amount of paraffin is condensed, stopping conveying paraffin methanol liquid into the tank body 1 through the liquid inlet pipeline 111, closing the second switch valve 1215, discharging the methanol in the tank body 1 to a methanol underground tank through the main liquid discharge pipe 1211 and the third branch liquid discharge pipe 1216 in sequence, closing the third switch valve 1217, opening the first switch valve 1214 on the first branch liquid discharge pipe 1212, opening the steam supply equipment, conveying steam with the pressure of 0.2 Mpa-1.1 Mpa and the temperature of 120 ℃ to 188 ℃ into the tank body 1 through the steam supply port 3, melting the condensed paraffin, discharging the melted paraffin into the paraffin collecting tank through the first branch liquid discharge pipe 1212, and intensively recovering the paraffin, and closing the steam supply equipment and the first switch valve 1214 after the paraffin is completely melted;
s300, recycling S100 and S200 to filter the paraffin methanol liquid.
As shown in fig. 3, in general: when the pressure difference is larger than 0.05MPa (the pressure difference of a common filter is larger than 0.1MPa, cleaning is carried out when the pressure difference is larger than 0.05MPa, the reason for switching cleaning is that the pressure difference is excessively large, the paraffin is enriched and saturated on the porcelain ball in the wire winding pipe 2, the porcelain ball needs to be regenerated, the enrichment effect of the paraffin on the porcelain ball is gradually weakened, the filtering effect is reduced, the pressure difference is excessively large, the wire winding pipe 2 is easily damaged, and therefore, in order to ensure the best filtering effect, the cleaning is started to be switched in advance compared with the common filter, the filter is proved to be blocked, the filter is switched for one use, and one steam is regenerated;
after the pressure difference of the filter A is high, switching the filter B;
The filter A is regenerated, and the program control process is as follows:
The pressure difference of the filter A is more than 0.05MPa;
A valve on the liquid inlet pipe 111 in the full-open filter B, and a second on-off valve 1215 on the liquid outlet pipe 121;
Closing the valve on the feed line 111 and the second on-off valve 1215 on the drain line 121 in filter a;
A third switch valve 1217 is arranged on the liquid discharge pipeline 121 in the full-open filter A for 10-30 minutes;
The third switch valve 1217 on the drain pipe 121 in the totally-closed filter a; a first switch valve 1214 on drain line 121 in fully open filter a;
a steam valve on the steam supply port 3 in the fully-opened filter a;
the temperature of the filter A rises to be more than or equal to 80 ℃ and is timed for 30 minutes;
Closing the steam valve on the steam supply port 3 in the filter a;
The temperature of the filter A is reduced to be less than or equal to 40 ℃;
A first switch valve 1214 on drain line 121 in total shut filter a;
after the pressure difference of the filter B is high, the filter A is switched, the filter B is cleaned, and the program control process is as follows:
The pressure difference of the filter B is more than 0.05MPa;
a valve on the liquid inlet pipe 111 in the full-open filter a, and a second on-off valve 1215 on the liquid outlet pipe 121;
closing the valve on the feed line 111 and the second on-off valve 1215 on the drain line 121 in filter B;
a third switch valve 1217 is arranged on the liquid discharge pipeline 121 in the full-open filter B for 10-30 minutes;
the third switch valve 1217 on the drain pipe 121 in the totally-closed filter B;
a first switch valve 1214 on drain line 121 in fully open filter B;
A steam valve on the steam supply port 3 in the fully-opened filter B;
the temperature of the filter B rises to be more than or equal to 80 ℃ and is timed for 30 minutes;
closing the steam valve on the steam supply port 3 in the filter B;
the temperature of the filter B is reduced to be less than or equal to 40 ℃;
The first on-off valve 1214 on drain line 121 in filter B is fully closed.
When the valve switch is automatically operated, the time delay is set to 3 seconds so as to ensure that the next step can be performed after the last step is finished and avoid material mixing.
Description:
(1) The methanol is discharged to the underground tank for centralized recovery, so that the in-situ discharge of the methanol, which is a toxic volatile combustible liquid, is avoided to pollute the environment;
(2) The cleaned paraffin is discharged to a paraffin collecting tank for centralized recovery, so that the on-site discharge of the paraffin is avoided to pollute the environment;
(3) The filter switching and cleaning can be set to be automatic program control operation or full manual operation.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (7)
1. The filter is characterized by comprising a tank body (1) and a wire winding pipe (2), wherein the wire winding pipe (2) is arranged in the tank body (1), and porcelain balls are filled in the wire winding pipe (2); a liquid inlet pipeline (111) and a liquid outlet pipeline (121) are respectively arranged above and below the wire winding pipe (2) on the tank body (1); the diameter of the porcelain ball is 1-10 mm, the wire winding width of the wire winding pipe (2) is 0.5-2 mm, the wire winding gap is 0.1-0.5 mm, a steam supply port (3) is arranged on the liquid inlet pipeline (111) and/or the tank body (1), the steam supply port (3) is connected with a steam supply device, the steam supply device transmits steam with the pressure of 0.2-1.1 Mpa and the temperature of 120-188 ℃ into the tank body through the steam supply port, so that condensed paraffin is melted, and a thermometer (4) is arranged on the tank body (1); and conveying the paraffin methanol liquid into the tank body (1) through the liquid inlet pipeline (111), condensing paraffin in the paraffin methanol liquid after passing through the wire winding pipe (2) and the porcelain ball in the tank body (1) to obtain methanol, and discharging the methanol through the liquid discharge pipeline (121).
2. A filter according to claim 1, characterized in that the tank (1) is provided with a plurality of steam supply openings (3) in the middle and lower parts thereof, the wire winding tube (2) being located in the middle and lower part of the tank (1).
3. A filter according to claim 2, characterized in that the steam supply openings (3) provided in the middle of the tank (1) and the steam supply openings (3) provided in the lower part of the tank (1) are all arranged in a ring shape, and each steam supply opening (3) is directed towards the wire winding tube (2).
4. A filter according to claim 1, characterized in that the tank (1) is provided with a safety valve (160).
5. The filter according to claim 1, wherein the tank body (1) comprises a tank body (110), an upper end socket (120), an upper flange (130), a lower flange (140), bolts and a partition plate (150), the upper end socket (120) is hollow and has an opening at the lower end, the upper flange (130) is arranged at the opening end of the upper end socket (120), the tank body (110) is hollow and has an opening at the upper end, the lower flange (140) is arranged at the opening end of the tank body (110), the upper flange (130) and the lower flange (140) are connected through a plurality of the bolts, the partition plate (150) is arranged between the upper flange (130) and the lower flange (140), the wire winding tube (2) is arranged in an inner cavity of the tank body (110), and the upper end of the wire winding tube (2) is connected with the partition plate (150).
6. The filter according to claim 1, wherein the liquid discharge pipe (121) comprises a main liquid discharge pipe (1211), a first branch liquid discharge pipe (1212), a second branch liquid discharge pipe (1213), a third branch liquid discharge pipe (1216), a first switch valve (1214), a second switch valve (1215) and a third switch valve (1217), one end of the main liquid discharge pipe (1211) is communicated with the bottom of the tank (1), the other end of the main liquid discharge pipe (1211) is respectively communicated with the liquid inlet end of the first branch liquid discharge pipe (1212), the liquid inlet end of the second branch liquid discharge pipe (1213) and the liquid inlet end of the third branch liquid discharge pipe (1216), the liquid outlet end of the first branch liquid discharge pipe (1212) is communicated with a paraffin collecting tank, the liquid outlet end of the second branch liquid discharge pipe (1213) is connected with refined methanol in a downstream procedure, the liquid outlet end of the third branch liquid discharge pipe (1216) is respectively communicated with a methanol underground tank, and the first switch valve (1215), the third switch valve (1217) and the third branch liquid discharge pipe (1216) are respectively arranged on the first branch liquid discharge pipe (1213).
7. A method for removing byproduct paraffin in the production of filtered methanol, which is characterized by comprising the following steps:
s100, conveying paraffin methanol liquid into a tank body (1) through a liquid inlet pipeline (111), condensing paraffin in the paraffin methanol liquid after passing through a wire winding pipe (2) and porcelain balls in the tank body (1) to obtain methanol, and discharging the methanol to a refined methanol downstream process through a main liquid discharge pipe (1211) and a second branch liquid discharge pipe (1213) in sequence;
S200, after a certain amount of paraffin is condensed, stopping conveying paraffin methanol liquid into the tank body (1) through the liquid inlet pipeline (111), closing the second switch valve (1215), discharging the methanol in the tank body (1) to a methanol underground tank through the main liquid discharge pipe (1211) and the third branch liquid discharge pipe (1216), closing the third switch valve (1217), opening the first switch valve (1214) on the first branch liquid discharge pipe (1212), opening the steam supply device, conveying steam with the pressure of 0.2-1.1 Mpa and the temperature of 120-188 ℃ into the tank body (1) through the steam supply port (3), melting the condensed paraffin, discharging the molten paraffin into the paraffin collecting tank through the first branch liquid discharge pipe (1212), and closing the steam supply device and the first switch valve (1214) after the paraffin is completely melted;
s300, recycling S100 and S200 to filter the paraffin methanol liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910576798.7A CN110201429B (en) | 2019-06-28 | 2019-06-28 | Filter and method for removing byproduct paraffin in methanol production by filtering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910576798.7A CN110201429B (en) | 2019-06-28 | 2019-06-28 | Filter and method for removing byproduct paraffin in methanol production by filtering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110201429A CN110201429A (en) | 2019-09-06 |
| CN110201429B true CN110201429B (en) | 2024-06-07 |
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| CN201910576798.7A Active CN110201429B (en) | 2019-06-28 | 2019-06-28 | Filter and method for removing byproduct paraffin in methanol production by filtering |
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| CN (1) | CN110201429B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112779066B (en) * | 2019-11-11 | 2025-07-01 | 中国石油天然气股份有限公司 | Wax removal device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262034Y (en) * | 1996-10-06 | 1997-09-10 | 张自美 | Porous porcelain ball filler |
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| CN2262034Y (en) * | 1996-10-06 | 1997-09-10 | 张自美 | Porous porcelain ball filler |
| CN1296425A (en) * | 1998-04-15 | 2001-05-23 | 加菲尔德国际投资公司 | Filter for removing solid from liquid |
| CN104131801A (en) * | 2008-08-29 | 2014-11-05 | 哈利伯顿能源服务公司 | Method for installing sand control screen in wellbore |
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| Publication number | Publication date |
|---|---|
| CN110201429A (en) | 2019-09-06 |
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