GB1013422A

GB1013422A – Improvements in or relating to the purification of hydrogen-containing gas mixtures
– Google Patents

GB1013422A – Improvements in or relating to the purification of hydrogen-containing gas mixtures
– Google Patents
Improvements in or relating to the purification of hydrogen-containing gas mixtures

Info

Publication number
GB1013422A

GB1013422A
GB3349/63A
GB334963A
GB1013422A
GB 1013422 A
GB1013422 A
GB 1013422A
GB 3349/63 A
GB3349/63 A
GB 3349/63A
GB 334963 A
GB334963 A
GB 334963A
GB 1013422 A
GB1013422 A
GB 1013422A
Authority
GB
United Kingdom
Prior art keywords
liquid
column
exchanger
product
mixture
Prior art date
1963-01-26
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
GB3349/63A
Inventor
George Louis Fabry
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.)

BOC Group Ltd

Original Assignee
British Oxigen Ltd
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.)
1963-01-26
Filing date
1963-01-26
Publication date
1965-12-15

1963-01-26
Application filed by British Oxigen Ltd
filed
Critical
British Oxigen Ltd

1963-01-26
Priority to GB3349/63A
priority
Critical
patent/GB1013422A/en

1965-12-15
Publication of GB1013422A
publication
Critical
patent/GB1013422A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES

F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification

F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream

F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream

F25J3/0261—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of carbon monoxide

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

C01B3/506—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification at low temperatures

C—CHEMISTRY; METALLURGY

C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT

C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE

C10K1/00—Purifying combustible gases containing carbon monoxide

C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors

C10K1/16—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with non-aqueous liquids

C10K1/165—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with non-aqueous liquids at temperatures below zero degrees Celsius

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES

F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification

F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream

F25J3/0204—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the feed stream

F25J3/0219—Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES

F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification

F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream

F25J3/0204—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the feed stream

F25J3/0223—H2/CO mixtures, i.e. synthesis gas; Water gas or shifted synthesis gas

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES

F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification

F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream

F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream

F25J3/0276—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of H2/N2 mixtures, i.e. of ammonia synthesis gas

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

C01B2203/0495—Composition of the impurity the impurity being water

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES

F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

F25J2205/00—Processes or apparatus using other separation and/or other processing means

F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. “scrubbing” or bubble column for purification purposes

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES

F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

F25J2210/00—Processes characterised by the type or other details of the feed stream

F25J2210/12—Refinery or petrochemical off-gas

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES

F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

F25J2210/00—Processes characterised by the type or other details of the feed stream

F25J2210/14—Coke-ovens gas

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES

F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

F25J2210/00—Processes characterised by the type or other details of the feed stream

F25J2210/42—Nitrogen

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES

F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams

F25J2230/42—Processes or apparatus involving steps for increasing the pressure of gaseous process streams the fluid being nitrogen

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES

F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams

F25J2235/42—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being nitrogen

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES

F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

F25J2240/00—Processes or apparatus involving steps for expanding of process streams

F25J2240/02—Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream

F25J2240/12—Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream the fluid being nitrogen

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES

F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

F25J2270/00—Refrigeration techniques used

F25J2270/14—External refrigeration with work-producing gas expansion loop

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES

F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE

F25J2270/00—Refrigeration techniques used

F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration

Abstract

In a process for removing higher boiling point impurities from a hydrogen-containing gas mixture by washing the gas mixture with liquid N2 under pressure in a rectification column to produce a substantially pure H2-N2 mixture and residual washing liquid containing higher boiling point impurities, at least a part of the liquid N2 used as washing liquid on the column is produced by compressing gaseous N2, cooling the compressed N2 at least in part by heat exchange with at least a part of the substantially pure H2-N2 mixture and/or at least a part of the residual washing liquid, expanding at least a part of the cooled compressed N2 with the performance of external work to a pressure substantially below the pressure in the rectification column, liquefying the expanded N2, and pumping the liquid N2 so formed to the column pressure before feeding it to the column to serve as washing liquid. Feed gas, containing, say, CO, N2, A and CH4 as impurities, is compressed, passed through heat exchanger 1, where it is cooled partly by a portion of the pure H2-N2 product and partly by vaporized residual washing liquid, and further cooled in exchanger 2 with H2-N2 product. The feed gas is then fed to rectification column 3 where it is washed by a descending liquid N2 stream. The purified gas leaving the top of 3 is divided into two parts, the major passing through exchangers 2 and 1 and the minor part being used to cool unexpanded gaseous N2 in pre-cooler 5, the N2 being previously compressed in compressor 4. The N2 is further cooled in conventional refrigeration system 6, whence one stream passes through expansion engine 10 to 8 where it is completely liquefied by heat exchange with residual washing liquor, from the sump of 3, which has already been partially vaporized in heat exchanger 9 following passage through expansion valve 14. The liquid N2 stream leaves cooler 6 and passes to 7 where it is cooled by heat exchange with the minor part of the H2-N2 product. From 7 the N2 passes to expansion valve 13, where it is partially liquefied during starting up and adjustment of the plant, and subsequently enters separator 12 from which the gaseous portion is conducted to join the H2-N2 product upstream of 7, while the liquid portion is combined with the liquid from the first N2 stream and the combined liquid is subcooled in exchanger 9 prior to entering column 3. The major portion of the pure N2-H2 mixture leaves exchanger 1 and is joined by the minor portion leaving exchanger 5. The main bulk of the N2 fed to compressor 4 may be withdrawn and fed to the H2-N2 product to increase its N2 content to 75%, if direct production of NH3 is subsequently desired.

GB3349/63A
1963-01-26
1963-01-26
Improvements in or relating to the purification of hydrogen-containing gas mixtures

Expired

GB1013422A
(en)

Priority Applications (1)

Application Number
Priority Date
Filing Date
Title

GB3349/63A

GB1013422A
(en)

1963-01-26
1963-01-26
Improvements in or relating to the purification of hydrogen-containing gas mixtures

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

GB3349/63A

GB1013422A
(en)

1963-01-26
1963-01-26
Improvements in or relating to the purification of hydrogen-containing gas mixtures

Publications (1)

Publication Number
Publication Date

GB1013422A
true

GB1013422A
(en)

1965-12-15

Family
ID=9756641
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB3349/63A
Expired

GB1013422A
(en)

1963-01-26
1963-01-26
Improvements in or relating to the purification of hydrogen-containing gas mixtures

Country Status (1)

Country
Link

GB
(1)

GB1013422A
(en)

Cited By (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3401531A
(en)

*

1965-05-19
1968-09-17
Linde Ag
Heat exchange of compressed nitrogen and liquid oxygen in ammonia synthesis feed gas production

FR2372650A1
(en)

*

1976-12-01
1978-06-30
Cng Res Co

ACID GAS SEPARATION PROCESS

1963

1963-01-26
GB
GB3349/63A
patent/GB1013422A/en
not_active
Expired

Cited By (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3401531A
(en)

*

1965-05-19
1968-09-17
Linde Ag
Heat exchange of compressed nitrogen and liquid oxygen in ammonia synthesis feed gas production

FR2372650A1
(en)

*

1976-12-01
1978-06-30
Cng Res Co

ACID GAS SEPARATION PROCESS

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