EP2791276A1 - Conception d'entrée d'alimentation d'unité de cokéfaction pour réduire au minimum des effets d'impact - Google Patents

Conception d'entrée d'alimentation d'unité de cokéfaction pour réduire au minimum des effets d'impact

Info

Publication number
EP2791276A1
EP2791276A1 EP12809915.7A EP12809915A EP2791276A1 EP 2791276 A1 EP2791276 A1 EP 2791276A1 EP 12809915 A EP12809915 A EP 12809915A EP 2791276 A1 EP2791276 A1 EP 2791276A1
Authority
EP
European Patent Office
Prior art keywords
vessel
feed inlet
central axis
feed
lower portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12809915.7A
Other languages
German (de)
English (en)
Inventor
Jay T. AXNESS
Chithranjan NADARAJAH
Ramesh X. Gandhi
Mitchell J. MOLONEY
David Scott SINCLAIR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Technology and Engineering Co
Original Assignee
ExxonMobil Research and Engineering Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ExxonMobil Research and Engineering Co filed Critical ExxonMobil Research and Engineering Co
Publication of EP2791276A1 publication Critical patent/EP2791276A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B31/00—Charging devices
    • C10B31/12—Charging devices for liquid materials
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B1/00—Retorts
    • C10B1/02—Stationary retorts
    • C10B1/04—Vertical retorts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B55/00—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/005—Coking (in order to produce liquid products mainly)

Definitions

  • the field of the disclosed subject matter Is delayed coking. More particularly, the field is systems and methods for dispensing fluid to delayed coke drams.
  • a petroleum stream containing heavy distillation fractions (“resid” or “residuum”) is typically heated rapidly in a fired heater or tubular furnace to create a mixture of hot liquid and vapor, which is then fed to a large steel vessel commonly known as a coke dram.
  • the coke drum is maintained under conditions in which coking occurs (e.g., greater than about 400° C. under super-atmospheric pressures).
  • Delayed coke drums are typically cylindrical vessels with a cone shape at the bottom, and can range in diameter anywhere from about 15 to in excess of 30 feet. The height of a delayed coke drum is typically two to five times the diameter.
  • the heated resid undergoes high temperature decomposition to produce more valuable liquid and gaseous products and solid or semi-solid coke residue.
  • the volatile components are removed overhead and pass on to a fractionator.
  • the solid or semi-solid coke left behind accumulates in the drum.
  • a switch valve is actuated to redirect the resid to an empty "sister" drum.
  • the hydrocarbon vapors in the full dram, now off line, are then purged with steam and the drum is quenched with steam and water to lower the temperature to less than about 100 0 C— after which the water is drained.
  • the top and bottom heads of the dram are opened and the coke is removed by drilling and/or cutting. For example, high velocity water jets can be lowered in through the top of the dram.
  • each end of a delayed coking dram is capped with a removable steel member or the like called a "head.”
  • the process of removing the top and bottom heads of a coke drum is called “unheading” or “deheading.”
  • heading The process of removing the top and bottom heads of a coke drum.
  • heated resid was predominately fed to delayed coke dmms through a single horizontal side-inlet in a side wall near the bottom of the dram.
  • heated resid of conventional delayed coke dmms are directed across the drum against the wall opposite the inlet.
  • the wall opposite the inlet is subjected to higher heat than the remainder of the drum.
  • the thermal shock caused by this non-uniform heat distribution can cause recurrent plastic deformation of the coke drum bottom and eventual ovalization, as well as leaks in nearby gasketed joints, metal fatigue, and cracks in the drum.
  • the side inlet feed design was often replaced with a single vertical bottom-inlet design. Relative to the single side-inlet design, this configuration reduced the non-uniform temperature distribution and concomitant leak problems.
  • the bottom feed inlet is through the center of the bottom head and the feed line therefore must be disconnected before the bottom head is removed.
  • U.S. Pat. No. 7, 1 15, 190 (“the ⁇ 90 patent”) describes "a tangential injection system for use within a delayed coking system ... .
  • the tangential injection system comprises a spool, [and] a tangential dispenser, ... wherein the tangential dispenser comprises a delivery main surrounding the perimeter of the spool that functions to deliver a residual byproduct ... to a plurality of feed lines positioned ... at distances around the delivery main for the purpose of providing tangential dispensing of the residual byproduct into the vessel, thus effectuating even thermal distribution throughout the vessel.
  • the ⁇ 90 patent abstract.
  • such tangential injection systems are complex in design and operation.
  • the ' 190 patent also notes that certain prior art dispensers comprise "two opposing, co-axial inlet feeds coupled to a vessel in the form of a coke drum.” See, the ⁇ 90 patent, col. 4, lines 55-59. As recognized by the ' 190 patent, however, such conventional co-axial dispenser arrangements are only minimally effective due to operational issues, such as pressure differentials between inlets. See, the ⁇ 90 patent, col. 3, lines 6-22,
  • U.S. Patent No. 7,736,470 attempts to address the uneven feed distribution that causes the thermal stress.
  • the '470 patent discloses methods and mechanisms that "utilize a split piping system to dispense fluid through two Of more inlets into a spool that is connected to a coke drum.” See, the '470 patent, col. 3, lines 52-54.
  • itjlie fluid may be introduced to the spool in opposing directions toward a central vertical axis of the spool at any angle between minus 30 degrees and 30 degrees relative to the horizontal, or less preferably, tangential to the sides of the spool.” See, the '470 patent, col. 3, lines 57-61.
  • a coke drum assembly includes a vessel having a body portion defining an interior and a central axis.
  • the vessel further has a lower portion including a sidewafl, and at least one feed inlet directed toward the central axis of the vessel, and angled upwardly at a feed inlet angle relative to the central axis.
  • the side wall of the lower portion at a location opposite the feed inlet is angled upwardly at an opposing wall angle relati ve to the central axis of the vessel and the feed inlet angle relative the central axis is less than or equal to the opposing wall angle.
  • the opposing wall angle is equal to or greater than about 45° relative to the central axis and the feed inlet angle is equal to or less than about 45° relative to the central axis of the vessel. In one embodiment, each feed inlet angle is approximately equal to the opposing wall angle.
  • At least two feed inlets are evenly spaced about the lower portion of the vessel around the central axis of the vessel.
  • at least two feed inlets are generally directed toward a common focal point in the interior of the vessel.
  • the common focal point can be located along the central axis of the vessel.
  • a feed pipe system is in fluid communication with the at least one feed inlet, wherein the at least one feed inlet includes at least two feed inlets spaced about the lower portion of the vessel, the feed pipe system including a primary feed pipe and a plurality of branch feed pipes extending from the main feed pipe, each branch feed pipe extending to a respective one of the at least two feed inlets.
  • the method comprises providing a coke dmm assembly that includes a vessel having a body portion defining an interior and a central axis, a lower portion including a sidewalf, and at least one feed inlet coupled with the lower portion in fluid communication with the interior of the vessel.
  • the feed inlets are directed toward the central axis of the vessel, and angled upwardly at a feed inlet angle relati ve to the central axis.
  • the side wall of the lower portion at a location opposite the feed inlet relative the central axis is angled upwardly at an opposing wall angle relative to the central axis of the vessel and the feed inlet angle is less than or equal to the opposing wail angle.
  • the method also comprises directing a fluid stream from a refinery operation through at least one feed inlet.
  • At least two feed inlets having a feed inlet angle less than or equal to the opposing wall angle can be provided, wherein the fluid streams directed through each of the feed inlets are substantially similar.
  • FIG. ! is a schematic representation of a lateral cross-sectional side view of one embodiment of the Sower portion vessel described herein.
  • FIG. 2 is a schematic representation of a cross-sectional plan view of the system of FIG . 1.
  • a coke drum assembly includes a vessel having a body portion defining an interior and a central axis.
  • the vessel further has a lower portion including a sidewall, and at least one feed inlet directed toward the central axis of the vessel, and angled upwardly at a feed inlet angle relative to the central axis.
  • the side wall of the lower portion at a location opposite the feed inlet is angled upwardly at an opposing wall angle relative to the central axis of the vessel and the feed inlet angle is less than or equal to the opposing wall angle.
  • a vessel 100 having a body portion defining an interior 101 and a central axis 120.
  • the vessel can have a variety of shapes and sizes suitable for the intended use in the industry. Additionally, the vessel can be constructed from a variety of materials suitable for the intended use in the industry. It is contemplated that the presently disclosed subject matter is not intended to be limited to a vessel of a particular size or shape; rather, the presently disclosed subject matter is intended to be used in any vessel configuration that is suitable for delayed coking operations.
  • a lower portion 110 of the vessel includes a sidewall 114. At least segments of the iow r er portion sidewall are angled 111 relative to the central axis 120 of the vessel.
  • the lower portion can be conical in shape, such that the sidewall extends continuously about the central axis at a constant angle; although the lower portion can have an alternate shape suitable in the industry.
  • the presently disclosed subject matter is not limited to a lower portion having a conical shape; rather, it is contemplated that the lower portion could also be toriconical, or divided into two conical portions with different angles relative to the central axis, or conical with a straight cylindrical portion befow r the conical portion prior to the bottom flange, or combinations thereof. Any configuration that is capable of being using in connection with a delayed coking operation is considered to he within the scope of the presently disclosed subject matter.
  • the lower portion 110 of the vessel is a separate member, such as a spool coupled to the bottom surface of a delayed coke dmm.
  • the spool encloses an interior space with a side wall having an inside surface and an outside surface.
  • the spool can have a generally hollow cone shape, or other suitable shape.
  • the spool can be flanged around its upper and lower ends to facilitate attachment. Attachment of the spool to the coke drum can be affected by welding or bolting the flange on the upper surface of the spool to a flange surrounding the bottom surface of a delayed coke drum or by any other techniques known in the art for attaching a spool to the bottom of a delayed coke dram.
  • a bottom deheader valve can be disposed proximate the lower portion of the vessel as known in the industry.
  • the bottom deheader valve can be attached to the lower portion or spool by welding or bolting or by any other techniques known in the art.
  • the spool or lower portion of the vessel provides a transition from the larger diameter or cross -section of the coke dram 101 to the typically smaller diameter or cross section of the coke drum bottom deheader v alve.
  • At least one feed inlet is provided.
  • the at least one feed inlet 112 is coupled with the lower portion 110 of the vessel in fluid communication with the interior 101 of the vessel.
  • Fig. 1 shows a coke drum assembly including two feed inlets.
  • the coke drum can be provided with only one feed inlet in accordance with the disclosed subject matter.
  • more than two feed inlets can be provided if desired or needed.
  • Each feed inlet 112 is disposed to direct fluid to flow into and towards the central axis 120 of the vessel and angled upwardly at a feed inlet angle 113 relative to the central axis. It is contemplated that multiple feed inlets may be spaced about the perimeter of the dram. The multiple feed inlets are preferably equidistant with respect to adjacent inlets.
  • the side wall of the lower portion is angled upwardly relative the central axis at an angle 111.
  • the feed inlet angle 113 relative the central axis is less than or equal to the opposing sidewall angle or opposing wall angle 111 relative the central axis.
  • each feed inlet angle 113 is approximately parallel to the opposing wall angle 111.
  • At least two feed inlets are evenly spaced about the lower portion of the vessel around central axis.
  • the feed inlets are located approximately 180° apart along an inside surface of the lower portion wall.
  • the feed inlets are spaced approximately 120 o apart around the central axis.
  • the feed inlets are spaced approximately 90° apart around the central axis.
  • Each feed inlet is directed toward a common focal point, such as along the central axis. In this manner, the fluid streams directed through the feed inlets impinge on one another.
  • the flow parameters, such as flow velocity and proportion of liquid to vapor, of the fluid stream (202a and 202b) flowing through the feed inlets are substantially equal.
  • the result is a more uniform temperature distribution in the lower portion of the coke dmm relative to a single feed inlet.
  • the flow from the inlets will tend to expand and the trajectory distance and time is increased. Hence, even if one of the feed inlets were to become obstructed, direct impingement of resid on a localized area of the opposing cone wall is attenuated.
  • the coke dmm assembly can further comprise a feed pipe system in fluid communication with the feed inlets.
  • This primary feed pipe 210 can be located downstream from a switch valve and is the dedicated feed pipe for a particular drum.
  • the primary fluid stream can be resid, water, steam or a solution containing one or more additives that affect coke morphology.
  • the coke drum assembly can have a primary feed pipe 210 and a plurality of branch feed pipes extending from the main feed pipe to respective feed inlets.
  • a primary feed pipe 210 carrying a primary fluid stream 201 can be coupled with an intersection 220, which in turn is coupled with a system of branch piping with each leg of branch feed pipe (241a and 241b) terminating at a port connected to a corresponding feed inlet (112a and 112b).
  • the primary fluid stream 201 can be routed from the primary feed pipe 210 through the intersection 220 and can be split into secondary fluid streams (202a and 202b) that flow in separate directions along the branch pipes (241a and 241b) and into the vessel chamber through the feed inlets (112a and 112b).
  • the intersection 220 can be a "T" shaped fitting, or a "Y” shaped fitting, or "cross” shaped fitting with one port blocked.
  • the intersection is symmetrical for uniform flow to the various branch feed pipes.
  • the intersection can be a cross shaped fitting with one port reversibly blocked with a flange to serve as a cleaning port.
  • Each branch pipe comprises one or more pipes.
  • each branch feed pipe can be a continuous branch pipe or can be a branch pipe that is further divided by a fitting to one or more feed inlets connected to the lower portion of the vessel.
  • the flow velocity through each branch feed pipe is equal to, or greater than, the flow velocity of the primary fluid (e.g., the combined furnace effluent) in the primary feed pipe 210 prior to the intersection. Maintaining substantially equal mass flow rates and liquid/vapor proportions between the secondary fluid streams, at flow velocities that are equal to, or greater than, the flow velocity of the primary fluid stream, can be accompiished such as by maintaining symmetry between the branch feed pipes.
  • the primary fluid e.g., the combined furnace effluent
  • FIG. 1 For purposes of illustration and without limitation, an exemplary embodiment of the apparatus and method of the disclosed subject matter is shown, for example, in Figs. 1 and 2, and described as follows.
  • the methods and apparatuses herein can be utilized, for example, in a delayed coker system where resid feed is passed by a coker furnace and then fed into a number of coke drums.
  • the resid feed that enters a coke drum is at elevated temperatures and pressures, often between 900 and 935° F. and up to 100 psig, and is comprised of two or more phases.
  • the feed can, for example, be comprised of up to about 80 vol. % vapor phase, and up to 20 vol. % of one or more liquid phases.
  • Superficial velocities are high, often on order of 100 ft/see.
  • a coke drum assembly is provided.
  • the coke drum 100 has a body portion defining an interior 101 and a central axis 120.
  • the vessel includes a lower portion 110, referred to herein as a coke drum cone, having a sidewall. As embodied herein, for illustration and not limitation, the sidewall is angled 111 relative to the central axis 120 of the coke dram 100.
  • the lower portion 110 is disposed at, as embodied herein, the bottom surface of a delayed coke drum 102.
  • a coke drum bottom deaheader valve 150 is disposed below the lower portion 110,
  • the lower portion 110 is generally a. hollow cone that encloses an interior space with a wall 114 having an inside surface and an outside surface.
  • Feed inlets 112 are coupled with the lower portion 110 to allow fluid to flow into the interior space 101 enclosed by the vessel.
  • Each feed inlet 112 is disposed to direct fluid to flow into and towards the central axis (120) of the vessel 100 and aligned at a feed inlet angle 113, relative the central axis, to dispose fluid upwardly and centrally into the interior space 101 of the vessel.
  • the feed inlet angle is equal to or less than the angle of the side wall, as measured with reference to the central axis, at a location opposite the feed inlet.
  • the feed inlet can be parallel to the opposing lower portion sidewail 114 measured in reference to the central axis 120 of the coke drum 100. If more than one feed inlet is provided, as shown, the feed inlets 112 are evenly spaced about the coke drum cone 110 around the central axis 120,
  • the Sower portion 110 of the vessel generally has a cone shape. Therefore, the interior surface (not numbered) of the cone (110) is generally circular in plan view.
  • two feed inlets (112a and 112b) are located on the same horizontal plane within the cone but positioned 180 degrees apart.
  • the flow of secondary streams (202a and 202b) through each of the feed inlets (112a and 112b) is directed toward the central axis. Accordingly, the secondary streams (202a and 202b) flow in opposite directions toward one another and toward a common focal point in the interior space (101) of the vessel.
  • the common focal point in the interior space of the vessel can be, for example, located on the central axis 120 of the vessel.
  • a primary fluid stream 201 travels through a primary feed pipe 210 downstream from a coker feed switch valve (not shown).
  • the primary fluid stream 201 enters intersection 220.
  • Intersection 220 splits primary fluid stream 201 into secondary fluid streams (202a and 202b) that each, independently, exit intersection 220 through opposing outlet ports (not numbered) into corresponding symmetrical branch feed pipes (240a and 240b).
  • the two symmetrical branch feed pipes (240a and 240b) carry the secondary fluid streams (202a and 202b) in separate directions.
  • Each branch feed pipe (240a and 240b) is operatively coupled with a respective feed inlet (112a and 112b).
  • Feed inlets (112a and 1212b) allow fluid to flow into the interior space 101 enclosed by the wall of the vessel.
  • the secondary fluid streams flow through the branch feed pipes (240a and 240b) and through the feed inlets (112a and 112b) into the interior space 101 enclosed by the wall of the vessel at a feed inlet angle 113 relative the central axis 120 equal to or less than the angle of the side wall 14 at a location opposite the feed inlet, i.e., the opposing wall angle ill.
  • the secondary fluid streams Upon entry into the interior space 101 enclosed by the wall of the vessel, the secondary fluid streams tend to expand, which gives rise to a fanning effect.
  • the increased spread of the secondary fluid streams due to the fanning effect generates a substantially uniform temperature profile within the vessel and along the wall. If, for example, the feed inlet angle 113 relative the central axis is parallel to the angle lllof the side wall 1 14 at a location opposite the feed inlet, the fanning benefit is increased due to the increase in trajectory distance and time between the feed inlet and the impingement surface. The fanning effect is also generated when the angle 113 is less than the angle 1 11 of the side wall 114.
  • the expanded secondary fluid streams flow in opposite directions toward one another and toward a common focal point in the interior space 101 of the vessel.
  • the expanded secondary fluid streams impinge on one another at a common focal point in the interior space 101 of the vessel.
  • the common focal point can be, for example, located on the central axis 120 of the vessel. In this manner, the impinging streams at the focal point further enhance dispersion and fanning of the streams within the vessel.
  • the secondary fluid streams (202a and 202b) are substantially similar due to the symmetrical or otherwise similar branch feed pipes (240a and 240b) for the corresponding feed inlets. Substantially similar secondary fluid streams impinging on one another allow for a more uniform impingement interface of the fluid streams. Should a blockage occur in one of the legs of branch feed pipes (240a and 240b), a differential in the flow rate of secondary fluid streams can arise. As embodied herein, however, the feed inlet angle 113 relative the central axis of the vessel is equal to or less than the angle of the side wall at a location opposite the feed inlet.
  • Such a feed inlet angle attenuates or otherwise reduces direct impingement of a secondary fluid stream on a localized area of the opposing vessel wall if such a blockage occurs. If, for example, the feed inlet angle 113 relative the central axis is parallel to the angle of the side wall 114 at a location opposite the feed inlet, trajectory distance and time of impingement between the feed inlet 112 and the opposing vessel wall is increased, if not avoided. Furthermore, by increasing the projected area of the impingement surface due to the fanning benefit, any peak heat flux caused by impingement on an opposing wall is reduced. The reduction in peak heat flux therefore decreases the severity of peak thermal stresses due to impingement. Moreover, the uniformity of the temperature profile due to the fanning effect decreases average thermal stresses due to impingement.
  • the fluid stream is directed within the vessel for normal processing and operations as otherwise known in the industry.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Coke Industry (AREA)

Abstract

L'invention porte sur un ensemble tambour à coke, lequel ensemble comporte une cuve ayant une partie corps définissant un intérieur, un axe central, et ayant une partie inférieure comprenant une paroi latérale, et au moins une entrée d'alimentation couplée à la partie inférieure en communication fluidique avec l'intérieur de la cuve. La ou les entrées d'alimentation sont dirigées vers l'axe central de la cuve, et inclinées vers le haut selon un angle d'entrée d'alimentation par rapport à l'axe central. A un emplacement opposé à l'entrée d'alimentation, la paroi latérale de la partie inférieure est inclinée vers le haut selon un angle de paroi opposé par rapport à l'axe central, l'angle d'entrée d'alimentation étant inférieur ou égal à l'angle de paroi opposé. L'invention porte également sur un procédé pour une cokéfaction retardée à l'aide de l'ensemble tambour à coke décrit dans la présente invention.
EP12809915.7A 2011-12-14 2012-12-10 Conception d'entrée d'alimentation d'unité de cokéfaction pour réduire au minimum des effets d'impact Withdrawn EP2791276A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161570478P 2011-12-14 2011-12-14
PCT/US2012/068692 WO2013090170A1 (fr) 2011-12-14 2012-12-10 Conception d'entrée d'alimentation d'unité de cokéfaction pour réduire au minimum des effets d'impact

Publications (1)

Publication Number Publication Date
EP2791276A1 true EP2791276A1 (fr) 2014-10-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12809915.7A Withdrawn EP2791276A1 (fr) 2011-12-14 2012-12-10 Conception d'entrée d'alimentation d'unité de cokéfaction pour réduire au minimum des effets d'impact

Country Status (3)

Country Link
US (1) US20130153466A1 (fr)
EP (1) EP2791276A1 (fr)
WO (1) WO2013090170A1 (fr)

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US10047298B2 (en) 2014-03-12 2018-08-14 Exxonmobil Research And Engineering Company Internal lining for delayed coker drum
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CN109225116B (zh) * 2018-09-17 2024-03-22 沈阳化工大学 一种筛孔喷嘴压差式撞击流反应器

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Also Published As

Publication number Publication date
WO2013090170A1 (fr) 2013-06-20
US20130153466A1 (en) 2013-06-20

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