GB931469A - Process for the production of inert gas mixtures - Google Patents

Process for the production of inert gas mixtures

Info

Publication number
GB931469A
GB931469A GB20915/61A GB2091561A GB931469A GB 931469 A GB931469 A GB 931469A GB 20915/61 A GB20915/61 A GB 20915/61A GB 2091561 A GB2091561 A GB 2091561A GB 931469 A GB931469 A GB 931469A
Authority
GB
United Kingdom
Prior art keywords
tank
hydrogen
pressure
air
valves
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.)
Expired
Application number
GB20915/61A
Inventor
Friedrich Nessler
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 GB931469A publication Critical patent/GB931469A/en
Expired 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/14—Production of inert gas mixtures; Use of inert gases in general
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/02—Preparation of nitrogen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/04—Purification or separation of nitrogen
    • C01B21/0405—Purification or separation processes
    • C01B21/0411—Chemical processing only
    • C01B21/0422—Chemical processing only by reduction
    • 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
    • C01B2210/00—Purification or separation of specific gases
    • C01B2210/0043—Impurity removed
    • C01B2210/0045—Oxygen

Abstract

Oxygen free gas mixtures are prepared by adding to recycled oxygen free mixture of nitrogen and noble gases, in a proportion of less than 1 part air to 10 parts mixture, adding hydrogen in sufficient amount to react with all the oxygen present as in the parent Specification, passing resulting mixture over a catalyst for the reaction between hydrogen and oxygen at a pressure higher than that at which the product is to be collected, removing the water formed, separating a major portion of the oxygen free mixture for recycling, expanding the remainder in a tank, and starting or stopping the feed of air and hydrogen in response to pressure variations in the tank. Air and hydrogen pass through valves 3,4 from compressors 2,1, into recycle stream from pump G, and the resulting mixture is fed to catalyst furnace K. The proportion of hydrogen to air is controlled in response to <PICT:0931469/III/1> analyser A. Water is separated in condenser W and withdrawn through two float operated valves, S1,S2 the former being of smaller section than the latter. A major part of the effluent is recycled through pump G and the remainder passed through drying tank T1 which operates or is regenerated alternately with drying tank T2. Dry gas is withdrawn through valve U operating at a certain pressure to tank V at a lower pressure. The feed valves 3,4 are operated by pressure controller D. The drying tanks are regenerated by hot gases circulated by pump P or by cooling in tank W2 under reduced pressure, condensate being removed by float operated valves S3,S4.
GB20915/61A 1960-02-04 1961-06-09 Process for the production of inert gas mixtures Expired GB931469A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ0007798 1960-02-04

Publications (1)

Publication Number Publication Date
GB931469A true GB931469A (en) 1963-07-17

Family

ID=7620266

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3968/61A Expired GB913148A (en) 1960-02-04 1961-02-02 Process for the production of inert gas mixtures
GB20915/61A Expired GB931469A (en) 1960-02-04 1961-06-09 Process for the production of inert gas mixtures

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3968/61A Expired GB913148A (en) 1960-02-04 1961-02-02 Process for the production of inert gas mixtures

Country Status (3)

Country Link
DE (1) DE1417743A1 (en)
FR (1) FR80157E (en)
GB (2) GB913148A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2640159A1 (en) * 1988-12-09 1990-06-15 Commissariat Energie Atomique Process and device for purifying a neutral gas containing oxygen and/or hydrogen as impurities

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057510A (en) * 1975-09-29 1977-11-08 Texaco Inc. Production of nitrogen rich gas mixtures
DE3137569A1 (en) * 1981-09-22 1983-04-21 Leybold-Heraeus GmbH, 5000 Köln METHOD AND DEVICE FOR PRODUCING HIGH PURITY NITROGEN
US4579723A (en) * 1985-03-28 1986-04-01 The Boc Group, Inc. Methods for purifying inert gas streams

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2640159A1 (en) * 1988-12-09 1990-06-15 Commissariat Energie Atomique Process and device for purifying a neutral gas containing oxygen and/or hydrogen as impurities

Also Published As

Publication number Publication date
FR80157E (en) 1963-03-22
DE1417743A1 (en) 1969-01-02
GB913148A (en) 1962-12-19

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