US1782287A - Gas-separation process - Google Patents

Gas-separation process Download PDF

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Publication number
US1782287A
US1782287A US28940A US2894025A US1782287A US 1782287 A US1782287 A US 1782287A US 28940 A US28940 A US 28940A US 2894025 A US2894025 A US 2894025A US 1782287 A US1782287 A US 1782287A
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US
United States
Prior art keywords
liquid
liquefaction
nitrogen
gaseous mixture
vaporization
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 - Lifetime
Application number
US28940A
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English (en)
Inventor
Claude Georges
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
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Filing date
Publication date
Application filed by Air Liquide SA filed Critical Air Liquide SA
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Publication of US1782287A publication Critical patent/US1782287A/en
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Expired - Lifetime legal-status Critical Current

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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
    • F25J3/0276—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
    • 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
    • F25J3/0261—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
    • 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

Definitions

  • This invention relates to the manufacture of hydrogen by the partial liquefaction of gaseous mixtures containing hydrogen and nitrogen, such as coke oven gases, ordinary illuminating gas or the like.
  • the object of the present invention is to avoid such loss of nitrogen as-above referred to and thus to improve the eificienc of the process with regard to the purity oy the hydrogen obtained thereby.
  • the process for the manufacture of hydrogen by partial liquefaction of mixtures of gases containing the same is characterized in that the liquid containing nitrogen produced during the course of thev partial liquefaction is subjected in an auxiliary rectification column to a pro'- gressive rectification or vaporization whilst under the same pressure as that at which the partial liquefaction of the gases is effected, the gas rich in nitrogen vthus obtained returning to the place where the nitrogen containing liquid is produced and the liquid substantially free from nitrogen produced as a result of the said progressive rectification being used fo'r bringing about by its vapor-4 ization the said partial liquefaction.
  • the compressed gaseous mixture to be treated after having been previously cooled -to a low temperature, is delivered to thecom mon inlet pipe G; the greater portion; of the gases ascends through the lower nest of tubes H 'in the column A, whence the gases passdo into the upper nest of tubes B.
  • the liquid formed in these latter tubes B containing a certain proportion of nitrogen, falls into the collectorV D, and thence descends over the successive plates of the rectification column 'I5 C; during this descent it becomes rectified by- Contact with the ascending vapors and nally reaches the vaporizer V entirely or almost entirely freed from nitrogen; the liquid from the vaporizer V is'discharged through the 80 pipe E into the compartment I outside the nest of tubes B.
  • the heating of the liquid in the vaporizer at the bottom of the column C is effectedv by a part of the compressed -gases to be treated which are delivered through the pipe K from the common inlet pipe G.
  • The' gaseous residue from the liquefaction of the compressedgases which pass through the nest of tubes in thevaporizer V is returned to thel principal column A, for
  • the ases to be treated can if desired be admitte to the tubes in the vaporizer V at a pressure slightly 1120 whilst under the same pressure as that at tion being used for bringing pressed gases are which the partial liquefaction of the gases is effected, the gas rich in nitrogen thus obtained returning to the place Where the nitrogen containing liquid is produced and the liquid substantially free from nitrogen produced as a result of the said progressive rectificaabout by its vaporization the said partial liqueaction.
  • a process of manufacturing 1 hydrogen comprising the steps of partially quefylng a gaseous mixture containing hydrogen; ex-
  • a rocess of manufacturing hydrogen comprising the steps of partially liquefying a gaseous mixture containing hydrogen in a main liquefying column; delivering to an auxlliary liquefymg column, for progressive Vaporization therein, the nitrogen-containing liquid formed and collecting in the main co umn Aduring the liquefaction operation; returning from the auxiliary column to the portion of the main column wherein said nitrogen-ccntaining liquid collects, the gas rich partially liquefied, the.
  • a process of separating the constituents of gaseous mixtures, such as those containing hydrogen, by partial liquefaction which comprises progressively liquefying the gaseous mixture; collecting the liquid containing the last liquefied constituent; separately subject-v ing it to a progressive vaporization out of the path of the gaseous mixture yundergoing liquefaction; and mixin-g the gas obtained by said vaporization with the gaseous mixture while undergoing liquefaction.
  • a process of separating theconstituents of gaseous mixtures, 'such as those v.containing hydrogen, by partial liquefaction which comprises progressively liquefying the gaseous mixture; collecting the liquid containing the last liquefied constituent; separately subjecting it to a progressive vaporization; returning the gas obtained by said vaporization to vthat part of the liquefaction process where the last liqueable constituent liquees; and vaporizing the liquid remaining after said Vaporizatlon for assisting in the liquefaction process.
  • a process of separating the constituents of gaseous mixtures, such as those containing hydrogen, by partial liquefaction which comprises progressively liquefying the gaseous mixture; collecting the liquid containing the last liquefied constituent; separately subjecting it to a progressive vaporwation out of the path of the gaseous mixture undergoingliquefaction; mixing the gas obtained by said vaporization with the gaseous mixture ⁇ while undergoing liquefaction and utilizing a part of the gaseous mixture to be treated for effecting the progresslve vaporization.
  • a process of of gaseouslmixtures such as those containing hydrogen, by partial liquefaction, which comseparating the constituents prises progressively liquefying the gaseous mixture; vcollecting the iquid containlng the last liquefied constituent; separately subject-j ing it to a progressive vaporization; returning the gas obtained by said vaporization to that part of the liquefaction process Where the last liquefahle constituent liqueies; and partially vaporizing the liquid remaining after said vaporizatlon by partially liquefying a part 'of the gaseous mixture treated.
  • a process of separating the constituents of gaseous mixtures, such as those containing hydrogen, by partial li uefaction which comprises progressively iquefying the. gaseous mixture; collecting the liqui containing the last liquefied constituent; separately subjecting it to a progressive vaporization; returning the gas obtained by said vaporization to that part of the liquefaction process Where the last liqueable constituent liquelies; partially vaporizing the liquid remaining after said Vaporization by partially liquefying apart of the gaseous mixture treated; and joining the gas .remaining from such partial liquefaotion to the main gaseous mixture -unler liquefaction.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
US28940A 1924-06-03 1925-05-08 Gas-separation process Expired - Lifetime US1782287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR502906X 1924-06-03

Publications (1)

Publication Number Publication Date
US1782287A true US1782287A (en) 1930-11-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
US28940A Expired - Lifetime US1782287A (en) 1924-06-03 1925-05-08 Gas-separation process

Country Status (5)

Country Link
US (1) US1782287A (enrdf_load_stackoverflow)
DE (1) DE502906C (enrdf_load_stackoverflow)
FR (1) FR594711A (enrdf_load_stackoverflow)
GB (1) GB235129A (enrdf_load_stackoverflow)
NL (1) NL19260C (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582068A (en) * 1948-12-30 1952-01-08 Elliott Co Method and apparatus for separating gases
US2895304A (en) * 1955-06-02 1959-07-21 Linde Eismasch Ag Process and apparatus for gas purification
WO2001067015A1 (en) * 2000-03-04 2001-09-13 Tung, Elizabeth Hydraulically balanced fully thermally coupled system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE944308C (de) * 1952-01-07 1956-06-14 Lurgi Ges Fuer Waermetechnik M Verfahren zur Herstellung von Wasserstoff oder wasserstoffhaltigen Gasen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582068A (en) * 1948-12-30 1952-01-08 Elliott Co Method and apparatus for separating gases
US2895304A (en) * 1955-06-02 1959-07-21 Linde Eismasch Ag Process and apparatus for gas purification
WO2001067015A1 (en) * 2000-03-04 2001-09-13 Tung, Elizabeth Hydraulically balanced fully thermally coupled system
US6347533B1 (en) * 2000-03-04 2002-02-19 Peter Tung Hydraulically balanced fully thermally coupled system

Also Published As

Publication number Publication date
NL19260C (enrdf_load_stackoverflow)
DE502906C (de) 1930-07-23
GB235129A (en) 1926-02-04
FR594711A (fr) 1925-09-17

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