US1842263A - Low temperature treatment of gases - Google Patents

Low temperature treatment of gases Download PDF

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Publication number
US1842263A
US1842263A US435587A US43558730A US1842263A US 1842263 A US1842263 A US 1842263A US 435587 A US435587 A US 435587A US 43558730 A US43558730 A US 43558730A US 1842263 A US1842263 A US 1842263A
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United States
Prior art keywords
gas
gases
exchanger
low temperature
temperature treatment
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Expired - Lifetime
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US435587A
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English (en)
Inventor
Gobert Maurice
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Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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Air Liquide SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D7/00—Sublimation
    • B01D7/02—Crystallisation directly from the vapour phase
    • 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
    • F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants

Definitions

  • the present invention relates to, and has for its object to provide, improvements in the processes of defrosting heat exchangers used in apparatus for the liquefaction or sep- 1 aration of gases by cold, in particular in apparatus for the manufacture of a gas rich in hydrogen by the liquefaction of the other constituents which are mixed therewith in gas treated, and which produce at the endof a certain time, troublesome obstructions.
  • This is the operation called defrosting the exchanger, in which the same proceeding may be adopted as for the heat exchangers of certain apparatus for the manufacture of oxygen and nitrogen by the liquefaction of air, where the solid deposit consists of ice; these apparatus are provided with two exchangers which are put into service alternately.
  • the compressed air is first cooled to the surrounding temperature, or to a temperature slightly higher, in the exchanger to be defrosted, where it circulates in order to heat it, passing thence into the exchanger under normal operation, which aloneis traversed in counter current to the airby the separated and cold gases and in which is produced the usual exchange of heat.
  • a suitable arrangement of cocks and tubes permit placing alternately one or the other of the two exchangers in the position of defrosting or of working.
  • Band C are two heat exchangers, one of which is usedfor the cooling of. the incoming coke oven gas while the other is being defrosted.
  • K and K are sets of tubes through which the separated gases are flowing.
  • A is the tube through which the coke oven gas enters and D the tube for the exit of the cooled coke oven gas.
  • E and F are cocks.
  • I, G and H are tubes through which the different separated gases enter the heat exchanger.
  • H, I and G are tubes for the exit of the separated gases which leave the heat exchangers.
  • L, L, M, N, N, X and X- are cocks.
  • P and P are tubes pro vided with cocks for the discharge in the liquid state of the impurities that. were deposited in solid state in the heat exchangers.
  • Z is a heater for a part of the separated gases.
  • the compressed coke furnace gas enters through A and may pass through the cocks E- and F either into the left-hand heat exchanger B, or into the right-hand heat'ex changer C; it passes out at the top to flow through the tube D to another exchanger working at a lower temperature.
  • the separated gases are here supposed to be three in number, that is to say 1st.
  • cocks M for the'second as, X and X for the third gas, and finally or L for the first gas permit the necessary manipulation to be effected.
  • Each of these gases can be used for any purpose whatever, for example, in synthetic or other reactions. In particular the gas rich.
  • the gas rich in hydrogen enters at H into a art of the set of tubes K of the exchanger leaving at H after passing through the cock M, which closes the passage of this same gas through the exchanger B.
  • the gas rich in'carbon monoxide or in nitrogen, entering at 1 passes through a part of the tubes K and leaves at I, flowing through the cock X, the cock X being closed.
  • the gas rich'in methane entering at G passes through the cock L, and is directed into the exchanger G, where it flows through a part of the tubes of the bundle K; a.
  • this gas is caused to leave through the cock N, while the balance passes throu h the heater Z where it is heated for example hy a'sup'ply of steam outside the tubes of Z.
  • This portion of gas so heated then passes to the heat exchanger B, where it circulates in the art 'of the, set of tubes K which is traversed ythe gas-rich in methane when this exchanger B is working normally.
  • This hot gas part thus defrosts the exchanger 'B and leaves it through G, after having passed through the cock L the lower cock N is of course closed.
  • cocks are manipulated so as to cause the coke V furnace gas to pass into the exchanger B, as
  • One advantage of this arrangement is to permit the recuperation alternately by the exchangers B and C of the whole of the benzol contained in the coke furnace gas, by changing the exchanger as soon as the quantity of solidified benzol accumulated in the exchanger causea pre-determined loss of pressure, for example, of one atmosphere. It then becomes possible to suppress the heavy oil towers now used to debenzolate coke furnace gas, and even the debenzolation effected in the coking works on the non-compressed gas leaving the furnaces.
  • a process for the low temperature treatment of gases containing low volatile substances that solidify by cooling which comprises circulating the gases resulting from the low temperature treatment in indirect contact with and counter current to the treated gas alternately in two regions spacially remote one from the other, whereby said easily solidifiable substances deposit along the path of'the treated gas, the gases resulting from the low temperature treatment which have been cir culated in one region being further circulated along those same paths of the other region,
  • a rocess for the low temperature treatment 0 gases containing low volatile substances that solidify by cooling, which comprises circulating the gases mesulting from the low temperature treatment in indirect contact with and counter current to the treated gas alternately in two regions spacially remote one from the other, whereby said easily solidifiable substances deposit along the path of the treated gas, a part of the gases resulting from the low temperature treatment which have been circulated in one region being further circulated alongthose same, paths of the other region, along vzhich the corresponding gases are circulated when the indirect contact is -efiected in said region, so as to melt the su'bstances which previously deposited in solid state along the path of the treated gas.
  • a rocess for the low temperature treatment 0 gases containing low volatile sub stances that solidify bycoolin which comrises circulating the gases re ting from the ow. temperature treatment in indirect contact with and counter current to the treated gas alternately in two regions spacially remote one from the other, whereby said easily solidifiable substances depositalon the path of the treated gas, the gases re ting from the low temperature treatment which have beencirculated in one region being further heated and circulated along those same paths of the other region, along which they are circulated when the indirect contact is efiected in said 26 region, so as to melt the substances which pre- I viously deposited in solid state along the path. of thetreatedgas.
  • a rocessior the low temperature treatment 0 gases containing low volatile sub stances that solidify by coolisllilg, which comprises circulating the gases re ting from the ow temperature treatment in indirect contact v with and counter current to the treated gas alternately in two regions spacially remote one from the other, whereby said easll solidifiable substances deposit along the pa of the treated gas, a part of the gases resulting from the low temperature treatment which have been circulated in one region being further heated and circulated along those same paths otthe other region,'along which the corresponding gases are circulated when the indirect contact is efiected in said region, sons to melt the substances which reviously deposited in solidstate along t e path of the treated gas.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)
US435587A 1929-03-15 1930-03-13 Low temperature treatment of gases Expired - Lifetime US1842263A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR547179X 1929-03-15

Publications (1)

Publication Number Publication Date
US1842263A true US1842263A (en) 1932-01-19

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US435587A Expired - Lifetime US1842263A (en) 1929-03-15 1930-03-13 Low temperature treatment of gases

Country Status (5)

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US (1) US1842263A (zh)
DE (1) DE547179C (zh)
FR (1) FR687479A (zh)
GB (1) GB350057A (zh)
NL (1) NL31194C (zh)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541409A (en) * 1943-06-07 1951-02-13 Richard T Cornelius Gas fractionating apparatus and method
US2643525A (en) * 1947-05-15 1953-06-30 Independent Engineering Compan Absorber for use in treating gases
US2663167A (en) * 1951-09-21 1953-12-22 Joy Mfg Co Gas separation apparatus and method
US2900798A (en) * 1953-04-22 1959-08-25 Philips Corp Heat-exchanger in which a multi-component medium is cooled
US2958203A (en) * 1958-02-01 1960-11-01 Sulzer Ag Gas purification method
US2960836A (en) * 1954-10-01 1960-11-22 Stamicarbon Process and apparatus for purifying gases
US2999365A (en) * 1954-07-24 1961-09-12 Philips Corp Method of separating gaseous impurities from a gaseous mixture
US3097940A (en) * 1961-03-01 1963-07-16 Union Carbide Corp Process for purifying gases
US3381486A (en) * 1965-09-29 1968-05-07 Frick Co Method and apparatus employing two stage refrigerant for solidifying a gaseous component
US3421333A (en) * 1964-08-28 1969-01-14 Linde Ag Thawing technique for a single air separation plant
US3490245A (en) * 1966-12-20 1970-01-20 Texaco Inc Self-cleaning regenerators for cryogenic systems
US4252772A (en) * 1978-09-15 1981-02-24 Way Peter F Apparatus for the recovery of vaporized phthalic anhydride from gas streams
US4391617A (en) * 1978-09-15 1983-07-05 Way Peter F Process for the recovery of vaporized sublimates from gas streams
US4414007A (en) * 1981-08-31 1983-11-08 United States Steel Corporation Process for separation of gas mixture
US6051053A (en) * 1996-12-16 2000-04-18 Ebara Corporation Trapping device and method of operation therefor
US20040244588A1 (en) * 2003-06-09 2004-12-09 Richard Sauer Method and apparatus for removing waxy materials from a gas stream
US20120234039A1 (en) * 2005-03-29 2012-09-20 Hilliard Jr Henry T Method for maximizing availability of heat exchangers for removal of volatile vapors from a storage vessel
CN104560249A (zh) * 2015-01-12 2015-04-29 中海石油气电集团有限责任公司 一种利用焦炉尾气和生物沼气耦合制取合成天然气的方法

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541409A (en) * 1943-06-07 1951-02-13 Richard T Cornelius Gas fractionating apparatus and method
US2643525A (en) * 1947-05-15 1953-06-30 Independent Engineering Compan Absorber for use in treating gases
US2663167A (en) * 1951-09-21 1953-12-22 Joy Mfg Co Gas separation apparatus and method
US2900798A (en) * 1953-04-22 1959-08-25 Philips Corp Heat-exchanger in which a multi-component medium is cooled
US2999365A (en) * 1954-07-24 1961-09-12 Philips Corp Method of separating gaseous impurities from a gaseous mixture
US2960836A (en) * 1954-10-01 1960-11-22 Stamicarbon Process and apparatus for purifying gases
US3036439A (en) * 1954-10-01 1962-05-29 Stamicarbon Purification of a gas by removing one or more admixed impurities from it by condensing the impurity or impurities to the solid state
US2958203A (en) * 1958-02-01 1960-11-01 Sulzer Ag Gas purification method
US3097940A (en) * 1961-03-01 1963-07-16 Union Carbide Corp Process for purifying gases
US3421333A (en) * 1964-08-28 1969-01-14 Linde Ag Thawing technique for a single air separation plant
US3381486A (en) * 1965-09-29 1968-05-07 Frick Co Method and apparatus employing two stage refrigerant for solidifying a gaseous component
US3490245A (en) * 1966-12-20 1970-01-20 Texaco Inc Self-cleaning regenerators for cryogenic systems
US4252772A (en) * 1978-09-15 1981-02-24 Way Peter F Apparatus for the recovery of vaporized phthalic anhydride from gas streams
US4391617A (en) * 1978-09-15 1983-07-05 Way Peter F Process for the recovery of vaporized sublimates from gas streams
US4414007A (en) * 1981-08-31 1983-11-08 United States Steel Corporation Process for separation of gas mixture
US6051053A (en) * 1996-12-16 2000-04-18 Ebara Corporation Trapping device and method of operation therefor
US20040244588A1 (en) * 2003-06-09 2004-12-09 Richard Sauer Method and apparatus for removing waxy materials from a gas stream
US7048777B2 (en) * 2003-06-09 2006-05-23 Air Liquide America, L.P. Method and apparatus for removing waxy materials from a gas stream
US20120234039A1 (en) * 2005-03-29 2012-09-20 Hilliard Jr Henry T Method for maximizing availability of heat exchangers for removal of volatile vapors from a storage vessel
CN104560249A (zh) * 2015-01-12 2015-04-29 中海石油气电集团有限责任公司 一种利用焦炉尾气和生物沼气耦合制取合成天然气的方法

Also Published As

Publication number Publication date
FR687479A (fr) 1930-08-08
DE547179C (de) 1932-03-21
NL31194C (zh)
GB350057A (en) 1931-06-11

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