CN111954654A - 萃取精馏分离芳烃的方法 - Google Patents

萃取精馏分离芳烃的方法 Download PDF

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CN111954654A
CN111954654A CN201980009379.3A CN201980009379A CN111954654A CN 111954654 A CN111954654 A CN 111954654A CN 201980009379 A CN201980009379 A CN 201980009379A CN 111954654 A CN111954654 A CN 111954654A
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extraction
tower
extractive distillation
solvent
benzene
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CN111954654B (zh
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田龙胜
赵明
唐文成
高思亮
杨楠
边志凤
郄思远
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Sinopec Research Institute of Petroleum Processing
China Petroleum and Chemical Corp
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Sinopec Research Institute of Petroleum Processing
China Petroleum and Chemical Corp
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00Purification; Separation; Use of additives
    • C07C7/04Purification; Separation; Use of additives by distillation
    • C07C7/05Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds
    • C07C7/08Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds by extractive distillation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D3/00Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14Fractional distillation or use of a fractionation or rectification column
    • B01D3/143Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D11/00Solvent extraction
    • B01D11/04Solvent extraction of solutions which are liquid
    • B01D11/0492Applications, solvents used
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D3/00Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/10Vacuum distillation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D3/00Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/40Extractive distillation
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/02Monocyclic hydrocarbons
    • C07C15/04Benzene
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/02Monocyclic hydrocarbons
    • C07C15/06Toluene
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/02Monocyclic hydrocarbons
    • C07C15/067C8H10 hydrocarbons
    • C07C15/08Xylenes
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00Purification; Separation; Use of additives
    • C07C7/005Processes comprising at least two steps in series
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00Purification; Separation; Use of additives
    • C07C7/10Purification; Separation; Use of additives by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D11/00Solvent extraction
    • B01D2011/002Counter-current extraction

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

一种萃取精馏分离芳烃的方法,包括将含芳烃的烃混合物引入萃取精馏塔(8)的中部,萃取溶剂引入萃取精馏塔的上部,经过萃取精馏,塔顶排出含苯的萃余物,其中苯含量为3~40质量%,将其送入萃取塔(10)的下部,将萃取溶剂引入萃取塔的上部进行液液萃取,不含芳烃的萃余液从萃取塔塔顶排出,含苯的富溶剂从塔底排出进入萃取精馏塔的中上部;将萃取精馏塔塔底得到的富溶剂送入溶剂回收塔分离芳烃和溶剂。该法将萃取精馏与液液萃取巧妙组合,可实现高纯度、高回收率的芳烃分离,并大幅降低萃取分离过程的能耗。

Description

PCT国内申请,说明书已公开。

Claims (20)

  1. PCT国内申请,权利要求书已公开。
CN201980009379.3A 2018-02-01 2019-01-30 萃取精馏分离芳烃的方法 Active CN111954654B (zh)

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CN201810101427.9A CN110105159A (zh) 2018-02-01 2018-02-01 萃取精馏分离芳烃的方法
CN2018101014279 2018-02-01
PCT/CN2019/073864 WO2019149212A1 (zh) 2018-02-01 2019-01-30 萃取精馏分离芳烃的方法

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EP (1) EP3747854A4 (zh)
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CN110357760A (zh) * 2019-07-31 2019-10-22 黄河三角洲京博化工研究院有限公司 一种萃取精馏方法生产高纯度混合二甲苯的工艺
US11434187B2 (en) * 2021-01-05 2022-09-06 Ecove Waste Management Corporation System of concentrating and separating waste solvent liquid
CN116064153B (zh) * 2021-11-02 2024-09-27 中国石化工程建设有限公司 一种从裂解汽油碳八馏分中回收苯乙烯和二甲苯的系统和方法
EP4430144A1 (de) * 2021-11-12 2024-09-18 thyssenkrupp Uhde GmbH Verfahren und vorrichtung zur trennung eines kohlenwasserstoffhaltigen einsatzstoffstroms durch extraktivdestillation
BE1029921B1 (de) * 2021-11-12 2023-06-12 Thyssenkrupp Ind Solutions Ag Verfahren und Vorrichtung zur Trennung eines kohlenwasserstoffhaltigen Einsatzstoffstroms durch Extraktivdestillation
CN114146451B (zh) * 2021-12-07 2024-01-09 本源精化环保科技有限公司 一种用于二羟基二环己基丙烷制造的萃取分离装置
CN115068968B (zh) * 2022-06-23 2024-01-26 大连理工大学 萃取精馏分离甲醇-乙腈-苯共沸物系的装置及方法

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US3844902A (en) * 1973-04-02 1974-10-29 A Vickers Combination of extractive distillation and liquid extraction process for separation of a hydrocarbon feed mixture
CN1278291A (zh) * 1997-09-03 2000-12-27 Hfm国际公司 芳族化合物分离工艺及为此改装现有设备的方法
CN1541988A (zh) * 2003-04-29 2004-11-03 中国石油化工股份有限公司 萃取精馏分离芳烃的方法
CN1660970A (zh) * 2004-02-27 2005-08-31 中国石油化工股份有限公司 萃取精馏分离芳烃所用的复合溶剂及使用方法
CN102046760A (zh) * 2008-04-10 2011-05-04 台湾中油股份有限公司 用于芳香族化合物回收的新的具能量效益且产能增加的萃取方法
CN103232317A (zh) * 2013-04-05 2013-08-07 大连理工大学 用于焦化粗苯加氢精制中的芳烃提纯装置及工艺

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FR2864103B1 (fr) 2003-12-23 2006-03-17 Inst Francais Du Petrole Procede de traitement d'une charge hydrocarbonee incluant un enlevement des resines
KR100565261B1 (ko) * 2004-11-01 2006-03-30 엘지전자 주식회사 왕복동식 모터의 고정자 구조
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Publication number Priority date Publication date Assignee Title
US3844902A (en) * 1973-04-02 1974-10-29 A Vickers Combination of extractive distillation and liquid extraction process for separation of a hydrocarbon feed mixture
CN1278291A (zh) * 1997-09-03 2000-12-27 Hfm国际公司 芳族化合物分离工艺及为此改装现有设备的方法
CN1541988A (zh) * 2003-04-29 2004-11-03 中国石油化工股份有限公司 萃取精馏分离芳烃的方法
CN1660970A (zh) * 2004-02-27 2005-08-31 中国石油化工股份有限公司 萃取精馏分离芳烃所用的复合溶剂及使用方法
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CN103232317A (zh) * 2013-04-05 2013-08-07 大连理工大学 用于焦化粗苯加氢精制中的芳烃提纯装置及工艺

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EP3747854A4 (en) 2021-12-01
KR102655097B1 (ko) 2024-04-04
TWI794402B (zh) 2023-03-01
CN110105159A (zh) 2019-08-09
RU2020126285A (ru) 2022-03-01
WO2019149212A1 (zh) 2019-08-08
EP3747854A1 (en) 2020-12-09
US20210053893A1 (en) 2021-02-25
TW201934525A (zh) 2019-09-01
US11731922B2 (en) 2023-08-22
CN111954654B (zh) 2023-03-17
RU2020126285A3 (zh) 2022-05-06
KR20200115628A (ko) 2020-10-07

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