US3607963A - Separation of acetylene and ethylene from cracked gas - Google Patents

Separation of acetylene and ethylene from cracked gas Download PDF

Info

Publication number
US3607963A
US3607963A US798041A US3607963DA US3607963A US 3607963 A US3607963 A US 3607963A US 798041 A US798041 A US 798041A US 3607963D A US3607963D A US 3607963DA US 3607963 A US3607963 A US 3607963A
Authority
US
United States
Prior art keywords
acetylene
gas
ethylene
condensate
cooling
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
US798041A
Inventor
Axel Danneil
Otto Nagel
Rolf Platz
Kurt Taglieber
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.)
BASF SE
Original Assignee
BASF SE
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
Priority claimed from DE19681643757 external-priority patent/DE1643757C3/en
Application filed by BASF SE filed Critical BASF SE
Application granted granted Critical
Publication of US3607963A publication Critical patent/US3607963A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F25J3/0238—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 CnHm with 2 carbon atoms or more
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/005—Processes comprising at least two steps in series
    • 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
    • F25J3/0228—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
    • F25J3/0271—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/CO mixtures, i.e. of 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/74—Refluxing the column with at least a part of the partially condensed overhead 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
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
    • F25J2205/04—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum in the feed line, i.e. upstream of the fractionation step
    • 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
    • F25J2205/50—Processes or apparatus using other separation and/or other processing means using absorption, i.e. with selective solvents or lean oil, heavier CnHm and including generally a regeneration step for the solvent or lean oil
    • 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/62—Ethane or ethylene
    • 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
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/02—Recycle of a stream in general, e.g. a by-pass stream
    • 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
    • F25J2270/04—Internal refrigeration with work-producing gas expansion loop

Abstract

Joint separation of acetylene and ethylene from cracked gas, obtained by submerged-flame methods, by condensing the hydrocarbons in one or more stages by cooling to a temperature above the solidification temperature of acetylene in admixture with the other condensable constituents, separating the condensate, washing the residual gas mixture with liquid ethylene and/or ethane, and further cooling the gas mixture free from acetylene to -140* to -170* C.

Description

United States Patent 9 lnventors Appl. No.
Filed Patented Assignee Priority SEPARATION OF ACETYLENE AND ETHYLENE Primary Examiner-Norman Yudkoff Assistant ExaminerArthur F. Purcell Attorney-Johnston, Root, OKeetfe, Keil, Thompson &
Shurtleff c n COOLED mo GAS EXPANDED PORTION 0 H4 ens PORTION FROM CRACKED GAS 4 Claims, 1 Drawing Fig.
U.S. Cl 260/679, 62/24, 62/39, 260/683 Int. Cl F23j 3/02, F25j 3/06, F25j 3/08 Field of Search 62/23, 24, 27, 28, 39; 260/683, 679
/ f :n :"ifio ib n gu l 2 5 cg zxe o uuconosuseo '9 ans PORTION FLASHED CONDENSATE FLASHED couozusnrs C2 H FREE GAS UNCON DENSED GAS PORTION SEPARATION OF ACETYLENE AND ETHYLENE FROM CRACKED GAS This invention relates to a process for the production of acetylene and ethylene from cracked gas.
U.S. Pat. No. 3,471,584 discloses a process for the separation or" acetylene and ethylene from cracked gas also containing methane, ethane and hydrocarbons having from three to five carbon atoms with or without carbon oxysulfide and carbon disulfide, which gas has been obtained in the cracking of petroleum or petroleum fractions by a flame burning beneath the surface of the same and from which carbon dioxide and hydrogen sulfide have been removed, wherein the cracked gas is dried, part of the methane and the whole of the remaining hydrocarbons and any carbon oxysulfide and carbon disulfide are separated by condensation, the condensate is vaporized and compressed and then the acetylene and ethylene together with methane and ethane are separated by pressure distillation from a liquid fraction which contains the whole of the hydrocarbons having three to five carbon atoms and any carbon oxysulfide and carbon disulfide.
In carrying out this process it has been found that under certain conditions, for example when the residual gas from the separators is too high in acetylene, acetylene may be deposited in solid form during further cooling, for example in the flash turbines. Occasional thawing of the turbines is thus made necessary and possibly also of the downstream heat exchangers. Continuous operation may thus be disturbed.
We have now found that disturbances in continuous operation due to deposition of acetylene are avoided when the condensation of the hydrocarbons is subdivided, the hydrocarbons first being cooled to a temperature which is above the solidification temperature of acetylene in admixture with the other condensable constituents, i.e., to from 82 to 1 20 C.,
the condensate thus obtained being separated and the remaining gas mixture containing small amounts of acetylene being freed from acetylene by scrubbing with a liquid consisting of ethylene, ethane or a mixture thereof and the gas mixture devoid of acetylene then being cooled to 1 to 170 C.
In the process according to this invention the above-mentioned disadvantage does not occur because the acetylene content is decreased to such an extent by subdivision of the condensation and the ethylene wash that solid acetylene is not deposited.
The new process is used to process gases that have been obtained in the submerged flame method of cracking liquid hydrocarbons, particularly crude oils, high-boiling crude oil fractions, distillation residues, or mixtures thereof. Such gases contain, in addition to ethylene, acetylene, hydrogen, nitrogen, carbon monoxide, carbon dioxide, methane ethane and higher hydrocarbons with from three to six carbon atoms, sulfur compounds such H 8, COS and CS When the gas is condensed to -82 to l 20 C., the C to C hydrocarbon fraction containing COS and CS and the bulk of the acetylene, e.g., to 95 percent of the total amount of acetylene present, are separated. The condensate additionally contains 30 to 80 percent of the ethylene and ethane and small amounts of undissolved methane. The condensation may if desired by carried out in two or more steps.
The residual gaseous portion is washed with ethylene or ethane or a mixture thereof. A mixture of ethylene and ethane such as is obtained in the further separation is preferred.
After the residual acetylene has been thus removed from the cracked gas the gas is further cooled to l40 to-l 70 C. to remove the residual ethylene and. ethane.
In carrying out the process, the necessary preliminary separation of the carbon dioxide and any sulfur, for example in the form of hydrogen sulfide, may be carried out in known manner, for example by treatment with an aqueous solution of an alkali metal salt of an amino acid. Methods referred to in the main patent may generally be used for this purpose. This is also true of any fine purification from carbon dioxide and subsequent drying of the cracked gas devoid of carbon dioxide and hydrogen sulfide prior to condensation. In addition to the drying specified in the main patent, scrubbing with anhydrous methanol or saturation with methanol vapor has proved to be suitable. I
The condensation itself is generally carried out at a pressure of from 5 to .40 atmospheres. A particular embodiment of the process consists in raising the temperature of the gas (cooled to -l40 to l70 C. after the ethylene wash) after condensate has again been separatedto to l00 C. countercurrent to the gas leaving the ethylene scrubber. The gas mixture which has had its temperature raised in this way may be flashed in a flash unit with performance of external work so that the gas mixture is cooled and may be used for countercurrent cooling in the condensation stages.
For scrubbing the gas mixture after it has been cooled to 82 to l20 C., it is possible to use the condensate which has been obtained by cooling to to 170 C. after the scrubbing with ethylene. It is also possible to add to this liquid additional amounts of ethylene and/or ethane obtained from other sources.
The condensate deposited in the condensation stages or if desired, in a single condensation stage may be flashed and vaporized in countercurrent heat exchange for cooling the gas mixture.
The invention is illustrated by the following example.
EXAMPLE I by volume H, 29.37 N, 059 CO 40. l 0 O, 0.20 CH. 3.96 C,H, 6.46 C H, 0.49 C l-l, 3.84 C,H,, 246 CH 4.89 C H, 6.95 CH,OH 0.69.
The gas is cooled to 20 C., the condensate obtained being separated in a separator 3. The remaining gas is passed through line 4 to a heat exchanger 5, cooled to 110 C. and freed from condensate in a separator 6. The residual gas flows through line 7 into a column 8 in which by countercurrent scrubbing with a mixture consisting substantially of liquid ethylene and ethane it is freed from acetylene to such an extent that the acetylene content in line 9 is less that 1 percent (with reference to the mixture of acetylene and ethylene) so that upon further cooling to C. in a heat exchanger 10 no deposition of solid acetylene can take place. Gas and liquid are separated in a separator 11. The gas with a residual content of ethylene of 2,000 p.p.m. and of acetylene of less than 10 p.p.m. passes in line 12 through the heat exchanger 10 and is warmed to a temperature of 125 C. countercurrent to the current of gas in line 9 and supplied to a flash turbine 13. Here the gas is expanded from 7.8 atmospheres to 1.4 atmospheres while performing external work, its temperature thus being lowered to 1 69 C.
We claim:
1. In a method of joint separation of acetylene and ethylene from cracked gas which has been obtained by cracking liquid hydrocarbon fractions by means of a flame burning beneath the surface of said hydrocarbons from which the carbon dioxide and hydrogen sulfide have been removed and the cracked gas is dried by condensation the improvement which comprises cooling said hydrocarbons to a temperature which is above the solidification temperature of acetylene in admixture with the other condensable constituents and which is in the range of82 to 1 20 C., the condensate thus obtained being separated and the remaining gas mixture containing small amounts of acetylene being freed from acetylene by scrubbing with a liquid consisting of ethylene, ethane or a mixture thereof, the gas mixture devoid of acetylene then being cooled to from l40 to 170 C., and flashing and vaporizing the condensate separated in the two condensation stages in countercurrent heat exchange for cooling the inflowing cracked gas.
2. In a method of joint separation of acetylene and ethylene from cracked gas which has been obtained by cracking liquid hydrocarbon fractions by means of a flame burning beneath the surface of said hydrocarbons from which the carbon dioxide and hydrogen sulfide have been removed and the cracked gas is dried by condensation the improvement which comprises cooling said hydrocarbons to a temperature which is above the solidification temperature of acetylene in admixture with the other condensable constituents and which is in the range of 82 to 1 20 C., the condensate thus obtained being separated and the remaining gas mixture containing small amounts of acetylene being freed from acetylene by scrubbing with a liquid consisting of ethylene, ethane or a mixture thereof, the gas mixture devoid of acetylene then being cooled to from to l70 C., separating the condensate from the gas which has been cooled to from l40" to l70 C., warming said gas to l30 to l0O C. countercurrent to the gas leaving the ethylene scrubber, and flashing said gas in a flash unit while performing external work so that the gas mixture is cooled and is used for countercurrent cooling in the condensation stages.
3. In a method as claimed in claim 1 the improvement which comprises using the condensate obtained by cooling to from 1 40 to 1 70 C. as the scrubbing liquid.
4. In a method as claimed in claim 2 the improvement which comprises using the condensate obtained by cooling to from 140 to C. as the scrubbing liquid.

Claims (3)

  1. 2. In a method of joint separation of acetylene and ethylene from cracked gas which has been obtained by cracking liquid hydrocarbon fractions by means of a flame burning beneath the surface of said hydrocarbons from which the carbon dioxide and hydrogen sulfide have been removed and the cracked gas is dried by condensation the improvement which comprises cooling said hydrocarbons to a temperature which is above the solidification temperature of acetylene in admixture with the other condensable constituents and which is in the range of -82* to -120* C., the condensate thus obtained being separated and the remaining gas mixture containing small amounts of acetylene being freed from acetylene by scrubbing with a liquid consisting of ethylene, ethane or a mixture thereof, the gas mixture devoid of acetylene then being cooled to from -140* to -170* C., separating the condensate from the gas which has been cooled to from -140* to -170* C., warming said gas to -130 * to -100* C. countercurrent to the gas leaving the ethylene scrubber, and flashing said gas in a flash unit while performing external work so that the gas mixture is cooled and is used for countercurrent cooling in the condensation stages.
  2. 3. In a method as claimed in claim 1 the improvement which comprises using the condensate obtained by cooling to from -140* to -170* C. as the scrubbing liquid.
  3. 4. In a method as claimed in claim 2 the improvement which comprises using the condensate obtained by cooling to from -140* to -170* C. as the scrubbing liquid.
US798041A 1968-02-13 1969-02-10 Separation of acetylene and ethylene from cracked gas Expired - Lifetime US3607963A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681643757 DE1643757C3 (en) 1968-02-13 1968-02-13 Process for the production of a condensate containing acetylene, xthane, ethylene and C deep 3 to C deep 5 hydrocarbons

Publications (1)

Publication Number Publication Date
US3607963A true US3607963A (en) 1971-09-21

Family

ID=5684391

Family Applications (1)

Application Number Title Priority Date Filing Date
US798041A Expired - Lifetime US3607963A (en) 1968-02-13 1969-02-10 Separation of acetylene and ethylene from cracked gas

Country Status (7)

Country Link
US (1) US3607963A (en)
AT (1) AT288336B (en)
BE (1) BE728312A (en)
ES (1) ES363604A2 (en)
FR (1) FR2001799A1 (en)
GB (1) GB1248693A (en)
SE (1) SE348721B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5516089A (en) * 1978-07-17 1980-02-04 Dut Pty Ltd Method of simultaneously cooling and dehydrating hydrocarbon gas mixture
US4336045A (en) * 1981-06-29 1982-06-22 Union Carbide Corporation Acetylene removal in ethylene and hydrogen separation and recovery process
US4735704A (en) * 1986-05-16 1988-04-05 Santa Fe Braun Inc. Liquid removal enhancement
AU584577B2 (en) * 1986-12-19 1989-05-25 M.W. Kellogg Company, The Process for separation of hydrocarbon gases
US4846863A (en) * 1987-02-18 1989-07-11 Costain Petrocarbon Limited Separation of hydrocarbon mixtures
US5358469A (en) * 1990-02-09 1994-10-25 Ultraflex Systems, Inc. Dynamic splint
US5421167A (en) * 1994-04-01 1995-06-06 The M. W. Kellogg Company Enhanced olefin recovery method
US5444176A (en) * 1992-10-28 1995-08-22 Exxon Chemical Patents Inc. Process for recovering olefins from cat-cracked gas without accumulating undesirable oxides of nitrogen
US5749840A (en) * 1989-12-07 1998-05-12 Ultraflex Systems, Inc. Dynamic splint
WO2016200053A1 (en) * 2015-06-09 2016-12-15 주식회사 엘지화학 Separation method and separation process system for recovering ethylene
WO2016200052A1 (en) * 2015-06-09 2016-12-15 주식회사 엘지화학 Separation method and separation process system for recovering ethylene

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO160432C (en) * 1981-05-26 1989-04-19 Air Prod & Chem PROCEDURE AND APPARATUS FOR RECOVERING A HYDROGENRIC GAS FROM A MATERIAL CONTAINING METHANE, ETHYLENE, HYDROGEN AND ACETYLENE.
CN106016968A (en) * 2016-07-14 2016-10-12 王嘉文 Method and device for liquidation purification of carbon dioxide

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008857A1 (en) * 1978-07-17 1980-03-19 Dut Pty Limited Method of simultaneously cooling and removing water from hydrocarbon gas mixtures and apparatus therefor
JPH0117405B2 (en) * 1978-07-17 1989-03-30 Dut Pty Ltd
JPS5516089A (en) * 1978-07-17 1980-02-04 Dut Pty Ltd Method of simultaneously cooling and dehydrating hydrocarbon gas mixture
US4336045A (en) * 1981-06-29 1982-06-22 Union Carbide Corporation Acetylene removal in ethylene and hydrogen separation and recovery process
US4735704A (en) * 1986-05-16 1988-04-05 Santa Fe Braun Inc. Liquid removal enhancement
AU584577B2 (en) * 1986-12-19 1989-05-25 M.W. Kellogg Company, The Process for separation of hydrocarbon gases
US4846863A (en) * 1987-02-18 1989-07-11 Costain Petrocarbon Limited Separation of hydrocarbon mixtures
US5749840A (en) * 1989-12-07 1998-05-12 Ultraflex Systems, Inc. Dynamic splint
US5358469A (en) * 1990-02-09 1994-10-25 Ultraflex Systems, Inc. Dynamic splint
US5444176A (en) * 1992-10-28 1995-08-22 Exxon Chemical Patents Inc. Process for recovering olefins from cat-cracked gas without accumulating undesirable oxides of nitrogen
US5421167A (en) * 1994-04-01 1995-06-06 The M. W. Kellogg Company Enhanced olefin recovery method
WO2016200053A1 (en) * 2015-06-09 2016-12-15 주식회사 엘지화학 Separation method and separation process system for recovering ethylene
WO2016200052A1 (en) * 2015-06-09 2016-12-15 주식회사 엘지화학 Separation method and separation process system for recovering ethylene
CN106488898A (en) * 2015-06-09 2017-03-08 株式会社Lg化学 For reclaiming separation method and the separating technology system of ethene
US10315972B2 (en) 2015-06-09 2019-06-11 Lg Chem, Ltd. Separation method and separation process system for recovering ethylene
CN106488898B (en) * 2015-06-09 2019-07-16 株式会社Lg化学 For recycling the separation method and separating technology system of ethylene
US10371442B2 (en) 2015-06-09 2019-08-06 Lg Chem, Ltd. Separation method and separation process system for recovering ethylene

Also Published As

Publication number Publication date
BE728312A (en) 1969-08-12
ES363604A2 (en) 1971-01-01
GB1248693A (en) 1971-10-06
FR2001799A1 (en) 1969-10-03
AT288336B (en) 1971-02-25
SE348721B (en) 1972-09-11

Similar Documents

Publication Publication Date Title
US3607963A (en) Separation of acetylene and ethylene from cracked gas
SU1745119A3 (en) Process for selective removal sulfur and gasoline from gas mixture
US3505784A (en) Scrubbing process for removing carbon dioxide from low-sulfur fuel gases or synthesis gases
JPS63163770A (en) Method of separating high-pressure gas flow
JPS63112692A (en) Removal of mercury from natural gas
EP0211447B1 (en) Scrubbing of gas to recover hydrocarbons
US3635038A (en) Joint separation of acetylene and ethylene from cracked gases
EP0119001B1 (en) Improved cryogenic production of ammonia synthesis gas
EP0089375A1 (en) Distillative separation of methane and carbon dioxide.
KR20050102102A (en) Removing natural gas liquids from a gaseous natural gas stream
US4533373A (en) Separation of CO2 and H2 S from hydrogen containing gas
US1422183A (en) Process of treating gaseous mixtures
US4401450A (en) Economic recovery of ethylene and/or propylene from low concentration feeds
US2887850A (en) Methane separated from hydrogen using ethane as an absorbent
US2608270A (en) Method of separating light hydrocarbon from high-pressure gas
US3187064A (en) Ethylene recovery system
US4601738A (en) Process for freeze protection and purification of natural gas liquid product streams produced by the Mehra process
US3192732A (en) Low temperature refrigeration in ethylene plants
US3471584A (en) Joint separation of acetylene and ethylene from cracked gases
NO822145L (en) PROCEDURE FOR AA REMOVING ACID GASES FROM GAS MIXTURES (SPECIAL NATURAL GAS)
NO842029L (en) Separation of methane-rich gas, carbon dioxide and hydrogen from mixtures with light hydrocarbons
NO822214L (en) PROCEDURE FOR AA REMOVE ACID GASES FROM GAS MIXTURES, SPECIAL NATURAL GAS
US3555836A (en) Process and apparatus for the separation of hydrocarbons with simultaneous production of acetylene
US2198743A (en) Process for purifying gases
US2787335A (en) Removal of acetylene components from gas