GB1067177A – Adsorption separation process
– Google Patents
GB1067177A – Adsorption separation process
– Google Patents
Adsorption separation process
Info
Publication number
GB1067177A
GB1067177A
GB34515/63A
GB3451563A
GB1067177A
GB 1067177 A
GB1067177 A
GB 1067177A
GB 34515/63 A
GB34515/63 A
GB 34515/63A
GB 3451563 A
GB3451563 A
GB 3451563A
GB 1067177 A
GB1067177 A
GB 1067177A
Authority
GB
United Kingdom
Prior art keywords
bed
adsorber
adsorption
valve
desorbed
Prior art date
1962-09-04
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.)
Expired
Application number
GB34515/63A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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.)
1962-09-04
Filing date
1963-09-02
Publication date
1967-05-03
1963-09-02
Application filed by Union Carbide Corp
filed
Critical
Union Carbide Corp
1967-05-03
Publication of GB1067177A
publication
Critical
patent/GB1067177A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
B01D53/047—Pressure swing adsorption
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
C01B13/02—Preparation of oxygen
C01B13/0229—Purification or separation processes
C01B13/0248—Physical processing only
C01B13/0259—Physical processing only by adsorption on solids
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B23/00—Noble gases; Compounds thereof
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
C01B3/56—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solids; Regeneration of used solids
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
C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
C10G25/02—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents with ion-exchange material
C10G25/03—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents with ion-exchange material with crystalline alumino-silicates, e.g. molecular sieves
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
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
B01D2256/16—Hydrogen
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
B01D2256/00—Main component in the product gas stream after treatment
B01D2256/24—Hydrocarbons
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
B01D2256/24—Hydrocarbons
B01D2256/245—Methane
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D2257/00—Components to be removed
B01D2257/10—Single element gases other than halogens
B01D2257/102—Nitrogen
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D2257/00—Components to be removed
B01D2257/10—Single element gases other than halogens
B01D2257/104—Oxygen
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D2257/00—Components to be removed
B01D2257/10—Single element gases other than halogens
B01D2257/108—Hydrogen
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D2257/00—Components to be removed
B01D2257/10—Single element gases other than halogens
B01D2257/11—Noble gases
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D2257/00—Components to be removed
B01D2257/40—Nitrogen compounds
B01D2257/406—Ammonia
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D2257/00—Components to be removed
B01D2257/50—Carbon oxides
B01D2257/502—Carbon monoxide
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D2257/00—Components to be removed
B01D2257/50—Carbon oxides
B01D2257/504—Carbon dioxide
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D2257/00—Components to be removed
B01D2257/70—Organic compounds not provided for in groups B01D2257/00 – B01D2257/602
B01D2257/702—Hydrocarbons
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D2257/00—Components to be removed
B01D2257/80—Water
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
B01D2259/40001—Methods relating to additional, e.g. intermediate, treatment of process gas
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
B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
B01D2259/40028—Depressurization
B01D2259/4003—Depressurization with two sub-steps
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
B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
B01D2259/40043—Purging
B01D2259/4005—Nature of purge gas
B01D2259/40052—Recycled product or process gas
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
B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
B01D2259/40077—Direction of flow
B01D2259/40081—Counter-current
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
B01D2259/403—Further details for adsorption processes and devices using three beds
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
B01D2259/404—Further details for adsorption processes and devices using four beds
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
B01D2259/4146—Contiguous multilayered adsorbents
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D2259/00—Type of treatment
B01D2259/65—Employing advanced heat integration, e.g. Pinch technology
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
C01B2203/042—Purification by adsorption on solids
C01B2203/043—Regenerative adsorption process in two or more beds, one for adsorption, the other for regeneration
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
C01B2203/0465—Composition of the impurity
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
C01B2203/0465—Composition of the impurity
C01B2203/047—Composition of the impurity the impurity being carbon monoxide
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
C01B2203/0465—Composition of the impurity
C01B2203/0475—Composition of the impurity the impurity being carbon dioxide
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
C01B2203/0465—Composition of the impurity
C01B2203/048—Composition of the impurity the impurity being an organic compound
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
C01B2203/0465—Composition of the impurity
C01B2203/0485—Composition of the impurity the impurity being a sulfur compound
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
C01B2203/0465—Composition of the impurity
C01B2203/0495—Composition of the impurity the impurity being water
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B2210/00—Purification or separation of specific gases
C01B2210/0043—Impurity removed
C01B2210/0046—Nitrogen
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
Y02C20/00—Capture or disposal of greenhouse gases
Y02C20/40—Capture or disposal of greenhouse gases of CO2
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P20/00—Technologies relating to chemical industry
Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Abstract
1,067,177. Separating gases. UNION CARBIDE CORPORATION. Sept. 2, 1963 [Sept. 4, 1962]. No. 34515/63. Addition to 989,073. Heading B1L. A fluid feed stream is purified by contacting it with one end of an absorbent bed at a first higher pressure, continuing the adsorption process until the impurity adsorption front has reach a predetermined point within the bed, discontinuing the introduction of the feed, removing fluid trapped in voids in the bed and moving the impurity front further forward by concurrently depressurising the bed and then desorbing the absorbent, the absorbent bed comprising activated AL 2 O 3 alone or together with SiO 2 gel, activated C or a zeolitic molecular seive. The process may be used to treat gaseous mixtures containing H 2 , O 2 . N 2 . Ne, Ne, Ar, Kr, NH 3 , H 2 O, CO 2 , CO, SO 2 , H 2 S, CH 4 , C 2 H 8 , C 3 H 8 , C 4 H 10 . C 2 H 4 . C 3 H 6 , C 4 H 8 , C 2 H 2 and higher saturated and unsaturated hydrocarbons. A feed stream at 100‹F and 750 psig passes via line 10 and valve 12 to adsorber A containing first a layer of silica gel and then a layer of zeolitic molecular seive. The partially impurity depleted feed stream is fed via lines 14 and valves 16 and 18 to adsorber D containing a plurality of adsorbents including activated alumina, weak adsorbate impurities being adsorbed in adsorber D until the adsorption front reaches a predetermined point within the adsorber D, but the adsorption front in adsorber A is not stopped at a predetermined point. The product effluent from D passes through lines 20 and 34 via valve 22 a portion being diverted along line 21 to repressurise bed F whilst another portion cools bed C which has previously been heated and desorbed. The warm effluent from C is further warmed at 60 and passed via line 28 to bed B which has previously been used for adsorption, and is thereby desorbed and the desorbate vented through cooler 62. Bed D is depressurised cocurrently with valves 18 and 22 closed and valve 38 open, the void gas being passed to adsorber F. Adsorber E which has just completed a cocurrent depressurisation step, is desorbed by opening valve 42, thus allowing the weak adsorbate constituents to leave through conduit 52. In another embodiment (Figs. 1 and 2, not shown) four adsorbers are used in a continuous process wherein at any time, one bed is being used for adsorption whilst the others undergo the steps of co-current depressurisation, desorption and repressurisation respectively.
GB34515/63A
1962-09-04
1963-09-02
Adsorption separation process
Expired
GB1067177A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US221033A
US3176444A
(en)
1962-09-04
1962-09-04
Adsorption separation process
Publications (1)
Publication Number
Publication Date
GB1067177A
true
GB1067177A
(en)
1967-05-03
Family
ID=22826059
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB34515/63A
Expired
GB1067177A
(en)
1962-09-04
1963-09-02
Adsorption separation process
Country Status (4)
Country
Link
US
(1)
US3176444A
(en)
AT
(1)
AT255382B
(en)
GB
(1)
GB1067177A
(en)
NL
(1)
NL297067A
(en)
Families Citing this family (151)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3226913A
(en)
*
1963-09-04
1966-01-04
Union Carbide Corp
Separation process
US3323288A
(en)
*
1964-05-27
1967-06-06
Union Carbide Corp
Selective adsorption process and apparatus
GB1144692A
(en)
*
1965-03-12
1969-03-05
Pall Corp
Gas drier with automatic cycle control and process
US3499053A
(en)
*
1965-11-10
1970-03-03
Exxon Research Engineering Co
Separation process
US3430418A
(en)
*
1967-08-09
1969-03-04
Union Carbide Corp
Selective adsorption process
US3498025A
(en)
*
1968-06-25
1970-03-03
Alco Standard Corp
Adsorption process and apparatus
US3717974A
(en)
*
1968-12-30
1973-02-27
Union Carbide Corp
Selective adsorption process for air separation
US3696588A
(en)
*
1970-12-07
1972-10-10
Ingersoll Rand Co
Gas drying apparatus and method
US3960522A
(en)
*
1971-04-23
1976-06-01
Bergwerksverband Gmbh
Carbon-containing molecular sieves
US3788037A
(en)
*
1971-06-28
1974-01-29
Don C Shell
Separation process
GB1526065A
(en)
*
1974-10-16
1978-09-27
Asahi Chemical Ind
Process for separation of hydrocarbon mixture
GB1529701A
(en)
*
1975-01-02
1978-10-25
Boc International Ltd
Oxygen enriched air
US4000990A
(en)
*
1975-04-16
1977-01-04
Nrg Nufuel Company
Adsorption process
US4093429A
(en)
*
1975-12-19
1978-06-06
General Electric Company
Gas separation system
JPS5289570A
(en)
*
1976-01-22
1977-07-27
Asahi Chem Ind Co Ltd
Gaseous phase separation
DE2604305A1
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*
1976-02-04
1977-08-11
Linde Ag
PROCEDURE FOR SEPARATING GAS MIXTURES
GB1574801A
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*
1976-05-07
1980-09-10
Boc Ltd
Gas separation
US4222750A
(en)
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1976-08-16
1980-09-16
Champion Spark Plug Company
Oxygen enrichment system for medical use
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1976-10-15
1978-03-07
Air Products And Chemicals, Inc.
Hydrogen purification by selective adsorption
US4194890A
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1976-11-26
1980-03-25
Greene & Kellogg, Inc.
Pressure swing adsorption process and system for gas separation
US4128405A
(en)
*
1977-02-16
1978-12-05
Continental Oil Company
Incomplete drying of activated carbon in a process for VCM reduction in vapors
CA1100418A
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1977-07-18
1981-05-05
Leslie W. Sandman
Adsorbent fractionator with effluent powered cycle control and process
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(en)
*
1978-02-01
1981-04-21
Greene & Kellogg
Pressure swing adsorption process and system for gas separation
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1978-08-21
1979-10-16
Air Products And Chemicals, Inc.
Separation of multicomponent gas mixtures
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(en)
*
1978-08-21
1979-10-16
Air Products And Chemicals, Inc.
Separation of multicomponent gas mixtures by pressure swing adsorption
DE2840357A1
(en)
*
1978-09-16
1980-04-03
Linde Ag
ADIABATIC ADSORPTION METHOD FOR GAS PURIFICATION OR SEPARATION
US4256469A
(en)
*
1978-11-06
1981-03-17
Linde Aktiengesellschaft
Repressurization technique for pressure swing adsorption
US4475929A
(en)
*
1978-12-05
1984-10-09
Union Carbide Corporation
Selective adsorption process
US4375363A
(en)
*
1978-12-05
1983-03-01
Union Carbide Corporation
Selective adsorption process for production of ammonia synthesis gas mixtures
DE2916585A1
(en)
*
1979-04-24
1980-11-06
Linde Ag
PRESSURE CHANGE ADSORPTION METHOD
US4249915A
(en)
*
1979-05-30
1981-02-10
Air Products And Chemicals, Inc.
Removal of water and carbon dioxide from air
US4261716A
(en)
*
1979-06-08
1981-04-14
John Zink Company
Apparatus for recovering hydrocarbons from air-hydrocarbon vapor mixtures
US4331456A
(en)
*
1979-06-08
1982-05-25
John Zink Company
Process for recovering hydrocarbons with air-hydrocarbon vapor mixtures
NL7905561A
(en)
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0
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unknown
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patent/US3176444A/en
not_active
Expired – Lifetime
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GB
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patent/GB1067177A/en
not_active
Expired
1963-09-03
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AT710163A
patent/AT255382B/en
active
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1900-01-01
AT255382B
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1967-07-10
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1965-04-06
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1971-02-18
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1969-03-20
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