JPS57108192A - Low temperature refining of cracked hydrocarbon - Google Patents
Low temperature refining of cracked hydrocarbonInfo
- Publication number
- JPS57108192A JPS57108192A JP55183763A JP18376380A JPS57108192A JP S57108192 A JPS57108192 A JP S57108192A JP 55183763 A JP55183763 A JP 55183763A JP 18376380 A JP18376380 A JP 18376380A JP S57108192 A JPS57108192 A JP S57108192A
- Authority
- JP
- Japan
- Prior art keywords
- methane
- hydrogen
- separation
- ethylene
- refining step
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
PURPOSE: To prevent a fraction such as ethylene from being lost by entrainment in a light fraction and to increase the yield of ethylene, etc. by using a condensate obtd. in a separation and refining step for hydrogen and methane as a reflux for a cracked hydrocarbon fractionation step.
CONSTITUTION: A mixture of hydrogen-methane gas separated by final fractionating column T-2 in feed treatment zone 1 is supplied via line 16A to hydrogen- methane separation and refining step 2, where it is cooled to a low temp. by primary coder E-5, and methane condensed is separated from a gas by primary separation drum D-5 and then supplied as a reflux to the fractionating column T-2 in the feed treatment zone 1 by pump 26. An amt. of ethylene fraction extrained in the refined hydrogen and methane gas separated and discharged from the hydrogen-methane separation and refining step 2 is reduced, the yield of ethylene is increased, and reduction of operation cost and energy saving are accomplished by supplying as a reflux a portion of the liquefied methane from the final separation and refining step 2 in the feed treatment zone 1 to the fractionating column T-2.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55183763A JPS6043390B2 (en) | 1980-12-26 | 1980-12-26 | Low-temperature purification method for hydrocarbon decomposition products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55183763A JPS6043390B2 (en) | 1980-12-26 | 1980-12-26 | Low-temperature purification method for hydrocarbon decomposition products |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57108192A true JPS57108192A (en) | 1982-07-06 |
JPS6043390B2 JPS6043390B2 (en) | 1985-09-27 |
Family
ID=16141539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55183763A Expired JPS6043390B2 (en) | 1980-12-26 | 1980-12-26 | Low-temperature purification method for hydrocarbon decomposition products |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6043390B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61106523A (en) * | 1984-10-31 | 1986-05-24 | Mitsui Eng & Shipbuild Co Ltd | Purification of cracked hydrocarbon |
JP2022029452A (en) * | 2021-09-27 | 2022-02-17 | 住友化学株式会社 | Method for producing hydrogen and production system |
-
1980
- 1980-12-26 JP JP55183763A patent/JPS6043390B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61106523A (en) * | 1984-10-31 | 1986-05-24 | Mitsui Eng & Shipbuild Co Ltd | Purification of cracked hydrocarbon |
JPH0234327B2 (en) * | 1984-10-31 | 1990-08-02 | Mitsui Shipbuilding Eng | |
JP2022029452A (en) * | 2021-09-27 | 2022-02-17 | 住友化学株式会社 | Method for producing hydrogen and production system |
Also Published As
Publication number | Publication date |
---|---|
JPS6043390B2 (en) | 1985-09-27 |
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