MY169293A - A method for recovering hexane - Google Patents

A method for recovering hexane

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Publication number
MY169293A
MY169293A MYPI2012004750A MYPI2012004750A MY169293A MY 169293 A MY169293 A MY 169293A MY PI2012004750 A MYPI2012004750 A MY PI2012004750A MY PI2012004750 A MYPI2012004750 A MY PI2012004750A MY 169293 A MY169293 A MY 169293A
Authority
MY
Malaysia
Prior art keywords
flow
heat
hexane
exchange
zone
Prior art date
Application number
MYPI2012004750A
Inventor
Bin Zhang
Yu Sha
Deqin Xu
Chunxia Cui
Biya Gao
Shunqiang Kuang
Kun He
Shijun Lu
Original Assignee
China Petroleum & Chem Corp
Sinopec Shanghai Eng Co Ltd
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 China Petroleum & Chem Corp, Sinopec Shanghai Eng Co Ltd filed Critical China Petroleum & Chem Corp
Publication of MY169293A publication Critical patent/MY169293A/en

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  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention provides a method for recovering hexane, comprising the following steps, a flow (8) comprising water. oligomers and hexane is evaporated in an evaporation zone. to obtain a gas-phase flow (10) comprising water and hexane: the gas-phase flow (10) is subjected to heat-exchange in a heat exchange zone, to obtain a post-heat-exchange flow (12) with a reduced temperature: the post-heat-exchange flow (12) is distilled in a dehydration zone in an azeotropic manner. to obtain a hexane flow (14) and a gas-phase mixture flow (13) comprising hexane and water: wherein the post-heat-exchange flow (12) has a temperature of T1, temperature enough to make the post-heat-exchange flow (12) form the gas-phase mixture flow (13) comprising hexane and water in the dehydration zone is T1. conditions of the heat exchange in the heat exchange zone ensure that T2>T1. and the difference value between T2 and T1 is greater than 0 and not greater than 20?C. The method of the present invention makes full use of the heat carried by the gas-phase flow (10) obtained by the evaporation zone and lowers the consumption of low-pressure steam and circulated water for cooling: further reduces the heat load of the dehydration zone.
MYPI2012004750A 2012-03-28 2012-10-25 A method for recovering hexane MY169293A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210084778 2012-03-28
CN201210389932.0A CN103360194B (en) 2012-03-28 2012-10-15 A kind of Hexane recovery method

Publications (1)

Publication Number Publication Date
MY169293A true MY169293A (en) 2019-03-21

Family

ID=49362553

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2012004750A MY169293A (en) 2012-03-28 2012-10-25 A method for recovering hexane

Country Status (2)

Country Link
CN (1) CN103360194B (en)
MY (1) MY169293A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109013126A (en) * 2018-08-03 2018-12-18 诚亿电子（嘉兴）有限公司 Diluent recovery unit and its recovery method
KR102552143B1 (en) * 2019-09-27 2023-07-05 주식회사 엘지화학 METHOD AND APPARATUS FOR PREPARING n-HEXANE
CN111925269B (en) * 2020-07-30 2023-06-27 陕西延长石油延安能源化工有限责任公司 Hexane refining system and method based on production of high-density polyethylene

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592814A (en) * 1947-12-20 1952-04-15 Du Pont Isolation of chlorosulfonated polymers of ethylene from solution
US7550065B2 (en) * 2005-04-21 2009-06-23 Lyondell Chemical Technology, L.P. Method for recovering solvents
CN202164246U (en) * 2011-08-12 2012-03-14 中国石油天然气股份有限公司 Refining system producing high-density polyvinyl cyclohexene by adopting slurry method

Also Published As

Publication number Publication date
CN103360194A (en) 2013-10-23
CN103360194B (en) 2015-10-21

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