WO2012123640A1 - Procédé et agencement de filtration dans un traitement au gaz - Google Patents

Procédé et agencement de filtration dans un traitement au gaz Download PDF

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Publication number
WO2012123640A1
WO2012123640A1 PCT/FI2012/050242 FI2012050242W WO2012123640A1 WO 2012123640 A1 WO2012123640 A1 WO 2012123640A1 FI 2012050242 W FI2012050242 W FI 2012050242W WO 2012123640 A1 WO2012123640 A1 WO 2012123640A1
Authority
WO
WIPO (PCT)
Prior art keywords
filtering
gas
zone
operating
filtered
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.)
Ceased
Application number
PCT/FI2012/050242
Other languages
English (en)
Inventor
Rami Hakala
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2012123640A1 publication Critical patent/WO2012123640A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B01D53/0415—Beds in cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/104—Alumina
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/10—Nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/12—Oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/18—Noble gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/06—Polluted air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/414—Further details for adsorption processes and devices using different types of adsorbents
    • B01D2259/4141—Further details for adsorption processes and devices using different types of adsorbents within a single bed
    • B01D2259/4145—Further details for adsorption processes and devices using different types of adsorbents within a single bed arranged in series

Definitions

  • the invention relates to a method and a filtering arrangement in a gas process according to the preambles of the independent claims related thereto.
  • FIG. 1 is shown as an example a customary gas process, in which the gas is being produced by a compressor, filtered, check filtered and after that pressurized to suit the gas process.
  • the gas filtering there has been used two parallel filters, which are being used one at a time in a way that during a replacement situation, circulation of the gas is being directed through the clean filter and the used filter is being replaced.
  • the size of replaceable filtering cartridges being generally used in the type of implementation described above, is typically about five litres and the cartridges are specially made, and also due to that expensive.
  • the operating periods of the filtering cartridges in question are rather short, which is why the maintenance and service costs of the filters in question are thus disproportionately high.
  • the type of filtering arrangements described above are being used in connection with operating processes of most heterogeneous gases, such as e.g. nitrogen, argon, oxygen or zero air, in which case the aim is to eliminate impurities in the process gas so that impure gas may not enter the actual operating process in order to avoid production interruption and/or even device damages. By use of an impure process gas in a critical operating process there has been caused significant technical, economical and operational damages in practice .
  • the filtering of a process gas can be carried out at reasonable costs instead of special made and expensive filtering cartridges by using usual gas bottles filled with suitable filtering materials.
  • the cost efficiency of a gas process can be significantly improved, without, however, risking the purity of the process gas.
  • gas bottles the sizes of which are significantly bigger than the present ; filtering cartridges, a gas process can be maintained uninterruptedly over a very long time without a need for maintenance and service measures that must be performed at very short time intervals within the filtering cartridges being used nowadays.
  • the invention enables thus optimizating of operational costs and technical functioning in operating processes of most heterogeneous gases without a risk of an impure gas entering an operating process, in which case a risk for the operating process is not caused due to that that there is for some reason no time/willingness to perform a scheduled filtering cartridge replacement.
  • Other advantageous embodiments of the method and filtering arrangement according to the invention are presented in the dependent claims related thereto.
  • the invention relates first of all to a method in a gas process, in which a filtering arrangement is being used in order to purify a process gas K, whereby the filtering arrangement comprises one or several hermetically closed and replaceable gas filters provided with filtering means.
  • a gas bottle 1 filled with one or several filtering materials la is being used as the gas filter.
  • the gas bottle 1 is being filled with two or more particle-like filtering materials la, being arranged therein as filtering zones following one another in a longitudinal direction s.
  • at least three filtering materials la are being used in the filtering, such as alum lal operating as a coarse filtering zone, zeolite la2 operating as a molecular filtering zone and activated carbon ' la3 operating as a fine filtering zone, and/or the like.
  • the process gas K to be filtered is being led into a coarse filtering zone lal existing at one end of the gas bottle 1 and the filtered process gas is being exhausted from a fine filtering zone la3 existing at an opposite end of the gas bottle.
  • retention time ' of the process gas K to be filtered in the filtering is being increased by using a gas bottle 1 with a volume of > 50 litres.;
  • the invention relates on the other hand to a filtering arrangement for purifying a process gas, which comprises one or several hermetically closed and replaceable gas filters provided with filtering means.
  • a gas filter being used in the filtering arrangement comprises a gas bottle 1 filled with one or several filtering materials la.
  • the gas bottle 1 is filled with two or more particle-like filtering materials la, being arranged therein as filtering zones following one another in a longitudinal direction s.
  • the filtering means comprise two or more filtering materials la, such as alum lal operating as a coarse filtering zone, zeolite la2 operating as a molecular filtering zone and activated carbon la3 operating as a fine filtering zone, and/or the like.
  • the filtering arrangement comprises a flow arrangement 2 in order to lead the process gas K to be filtered by a first flow way 2a into a coarse filtering zone lal existing at one end of the gas bottle 1, and on the other hand to exhaust the filtered process gas by a second flow way 2b from a fine filtering zone la3 existing at an opposite end of the gas bottle 1.
  • the volume of the gas bottle : 1 is > 50 litres.
  • the filtering efficiency of the gas bottles having a many times larger volume compared to traditional filtering cartridges is naturally of a very high level, in addition to which the manufacturing and production costs of so called standard gas bottles are fractional when compared to the manufacturing and production costs of special amufactured filtering cartridges.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention porte sur un procédé utilisé dans un traitement au gaz, dans lequel un agencement de filtration est utilisé afin de purifier un gaz de traitement (K), l'agencement de filtration comprenant un ou plusieurs filtres à gaz hermétiquement fermés et remplaçables dotés de moyens de filtration. Une bouteille à gaz (1) remplie d'un ou plusieurs matériaux filtrants (1a) est utilisée comme filtre à gaz. L'invention porte également sur un agencement de filtration pour la purification d'un gaz de traitement effectuée selon le procédé.
PCT/FI2012/050242 2011-03-17 2012-03-15 Procédé et agencement de filtration dans un traitement au gaz Ceased WO2012123640A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20115265A FI20115265A0 (fi) 2011-03-17 2011-03-17 Menetelmä ja suodatusjärjestely kaasuprosessissa
FI20115265 2011-03-17

Publications (1)

Publication Number Publication Date
WO2012123640A1 true WO2012123640A1 (fr) 2012-09-20

Family

ID=43806475

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2012/050242 Ceased WO2012123640A1 (fr) 2011-03-17 2012-03-15 Procédé et agencement de filtration dans un traitement au gaz

Country Status (2)

Country Link
FI (1) FI20115265A0 (fr)
WO (1) WO2012123640A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162289A (en) * 1977-02-25 1979-07-24 Internacional de Ciencia y Tecnologia, S.A. Filter unit for avoiding environmental pollution in cemeteries
US5133787A (en) * 1990-03-02 1992-07-28 Christian Diot Enclosure and apparatus for separating gas mixtures by adsorption
US5151395A (en) * 1987-03-24 1992-09-29 Novapure Corporation Bulk gas sorption and apparatus, gas containment/treatment system comprising same, and sorbent composition therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162289A (en) * 1977-02-25 1979-07-24 Internacional de Ciencia y Tecnologia, S.A. Filter unit for avoiding environmental pollution in cemeteries
US5151395A (en) * 1987-03-24 1992-09-29 Novapure Corporation Bulk gas sorption and apparatus, gas containment/treatment system comprising same, and sorbent composition therefor
US5133787A (en) * 1990-03-02 1992-07-28 Christian Diot Enclosure and apparatus for separating gas mixtures by adsorption

Also Published As

Publication number Publication date
FI20115265A0 (fi) 2011-03-17

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