KR830006142A - Separation method of hydrocarbon which is relatively soluble from hydrocarbon mixture - Google Patents

Separation method of hydrocarbon which is relatively soluble from hydrocarbon mixture Download PDF

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Publication number
KR830006142A
KR830006142A KR1019810001794A KR810001794A KR830006142A KR 830006142 A KR830006142 A KR 830006142A KR 1019810001794 A KR1019810001794 A KR 1019810001794A KR 810001794 A KR810001794 A KR 810001794A KR 830006142 A KR830006142 A KR 830006142A
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KR
South Korea
Prior art keywords
hydrocarbon
column
stage
distillation column
relatively soluble
Prior art date
Application number
KR1019810001794A
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Korean (ko)
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KR840002342B1 (en
Inventor
히로시 호가리
신조 하야마
Original Assignee
오오니시 사부로
닛뽕 제온 가부시끼 가이샤
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Application filed by 오오니시 사부로, 닛뽕 제온 가부시끼 가이샤 filed Critical 오오니시 사부로
Priority to KR1019810001794A priority Critical patent/KR840002342B1/en
Publication of KR830006142A publication Critical patent/KR830006142A/en
Application granted granted Critical
Publication of KR840002342B1 publication Critical patent/KR840002342B1/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/04—Purification; Separation; Use of additives by distillation
    • C07C7/05—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds
    • C07C7/08—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds by extractive distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/10—Purification; Separation; Use of additives by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids

Abstract

내용 없음No content

Description

탄화수소 혼합물로부터 비교적 용해되기 쉬운 탄화수소의 분리방법Separation method of hydrocarbon which is relatively soluble from hydrocarbon mixture

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 추출 증류 방법을 나타내고,1 shows an extractive distillation process according to the invention,

제2도는 종래의 기술에 따른 추출 증류 방법을 나타낸다.2 shows an extractive distillation process according to the prior art.

Claims (4)

추출 증류 칼럼 및, 극성 추출 용매를 사용하는 스트리핑 칼럼으로 이루어진 유닛의 2단계로 구성된 추출 증류 장치와, 첫번째 단계 추출 증류 칼럼이 두번째 단계 추출 증류 칼럼의 저부압보다 더 높은 저부압으로 조작되며, 예비-스트리핑 칼럼이 첫번째 단계 추출 증류 칼럼과 첫번째 단계 스트리핑 칼럼 사이에 장치되어, 예비-스트리핑 칼럼을 첫번째 단계 추출 증류 칼럼의 저부압과 같거나 더 낮게, 또는 두번째 단계 추출 증류 칼럼의 저부압과 같거나 더 높은 압력으로 조작함으로써, 예비-스트리핑 칼럼내 생성된 비교적 용해되기 쉬운 탄화수소 기체가 첫번째 단계 스트리핑 칼럼 및 압축기 또는 펌프를 통과하지 않고 직접 두번째 단걔 추출 증류 칼럼으로 보내지는 개량장치내에서 탄화수소 혼합물을 추출 증류함을 특징으로 하는, 탄화수소 혼합물로부터 비교적 용해되기 쉬운 탄화수소를 분리하는방법.The extractive distillation apparatus consisting of two stages of units consisting of an extractive distillation column and a stripping column using a polar extraction solvent, and the first stage extractive distillation column are operated at a lower pressure higher than the lower pressure of the second stage extractive distillation column, A stripping column is installed between the first stage extraction distillation column and the first stage stripping column such that the pre-striping column is equal to or lower than the low pressure of the first stage extraction distillation column, or equal to the low pressure of the second stage extraction distillation column By operating at higher pressures, the hydrocarbon mixture is extracted in a retrofitter where the relatively soluble hydrocarbon gas produced in the pre-striping column is sent directly to the second stage extraction distillation column without passing through the first stage stripping column and the compressor or pump. Hydrocarbon horn, characterized by distillation A method for separating hydrocarbons that is relatively soluble in a mixture. 극성 추출 용매가 디메틸 포름아미드임을 특징으로 하는 특허청구범위 1의 방법.The method of claim 1 wherein the polar extraction solvent is dimethyl formamide. 비교적 용해되기 쉬운 탄화수소로서의 1,3-부타디엔이, 탄화수소 혼합물로서의 C4탄화수소 혼합물로부터 분리됨을 특징으로 하는 특허청구범위 1 또는 2의 방법.The process of claim 1 or 2, wherein 1,3-butadiene as a relatively soluble hydrocarbon is separated from the C 4 hydrocarbon mixture as a hydrocarbon mixture. 비교적 용해되기 쉬운 탄화수소로서의 이소프렌이 탄화수소 혼합물로서의 C5탄화수소 혼합물로부터 분리됨을 특징으로 하는 특허청구범위 1 또는 2의 방법Method of claims 1 or 2 characterized in that isoprene as a relatively soluble hydrocarbon is separated from a C 5 hydrocarbon mixture as a hydrocarbon mixture. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019810001794A 1980-06-12 1981-05-23 Process for extractive distillation of hydrocarbons KR840002342B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019810001794A KR840002342B1 (en) 1980-06-12 1981-05-23 Process for extractive distillation of hydrocarbons

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP78,346/80 1980-06-12
KR1019810001794A KR840002342B1 (en) 1980-06-12 1981-05-23 Process for extractive distillation of hydrocarbons

Publications (2)

Publication Number Publication Date
KR830006142A true KR830006142A (en) 1983-09-17
KR840002342B1 KR840002342B1 (en) 1984-12-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019810001794A KR840002342B1 (en) 1980-06-12 1981-05-23 Process for extractive distillation of hydrocarbons

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100458361B1 (en) * 2001-09-25 2004-11-26 한국과학기술연구원 Process for Separation of Isoprene from C5 fraction of Cracked Naphtha by Extractive Distillation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100458361B1 (en) * 2001-09-25 2004-11-26 한국과학기술연구원 Process for Separation of Isoprene from C5 fraction of Cracked Naphtha by Extractive Distillation

Also Published As

Publication number Publication date
KR840002342B1 (en) 1984-12-20

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