KR960017596A - Improved Adsorptive Separation Method of Methaxylene from Aromatic Hydrocarbons - Google Patents

Improved Adsorptive Separation Method of Methaxylene from Aromatic Hydrocarbons Download PDF

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KR960017596A
KR960017596A KR1019940030575A KR19940030575A KR960017596A KR 960017596 A KR960017596 A KR 960017596A KR 1019940030575 A KR1019940030575 A KR 1019940030575A KR 19940030575 A KR19940030575 A KR 19940030575A KR 960017596 A KR960017596 A KR 960017596A
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adsorbent
metha xylene
mixture
zeolite
xylene
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KR1019940030575A
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Korean (ko)
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KR0153553B1 (en
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쿨프라시파냐 산티
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토마스 케이. 맥브라이드
유오피
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/12—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/02—Monocyclic hydrocarbons
    • C07C15/067—C8H10 hydrocarbons
    • C07C15/08—Xylenes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites

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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)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)

Abstract

본 발명은 메타크실렌과 적어도 하나의 다른 C8방향족 탄화수소로 이루어진 혼합물을 흡착 조건에서 나트륨 이온을 함유하는 Y제올라이트로 이루어진 흡착제와 접촉시켜서 상기 흡착제 상에 메타크실렌을 선택적으로 흡착하고, 상기 혼합물의 비흡착된 부분은 상기 흡착제와의 접촉에서 제거하고 메타크실렌은 탈착 조건에서 탈착제로 탈착시켜 회수하며, 여기서 흡착 조건은 100 내지 150℃의 온도를 포함하며, 흡착제는 500℃에서 1.5 내지 3.0중량% LOI의 수화정도를 갖는 것을 특징으로 하는, 상기 혼합물에서 메타크실렌을 분리하기 위한 방법에 관한것이다.The present invention selectively adsorbs metha xylene on the adsorbent by contacting a mixture consisting of metha xylene with at least one other C 8 aromatic hydrocarbon with an adsorbent consisting of Y zeolite containing sodium ions under adsorption conditions, wherein The adsorbed portion is removed from contact with the adsorbent and the metha xylene is recovered by desorption with desorbent under desorption conditions, wherein the adsorbent conditions include a temperature of 100 to 150 ° C., and the adsorbent is 1.5 to 3.0 wt% LOI at 500 ° C. It relates to a method for separating metha xylene from the mixture, characterized in that having a degree of hydration of.

Description

방향족 탄화수소로부터 메타크실렌의 개선된 흡착 분리 방법Improved Adsorptive Separation Method of Methaxylene from Aromatic Hydrocarbons

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (10)

메타크실렌과 적어도 하나의 다른 C8방향족 탄화수소로 이루어진 혼합물을 흡착 조건에서 나트륨 이온을 함유하는 Y제올라이트로 이루어진 흡착제와 접촉시켜서 상기 흡착제 상에 메타크실렌을 선택적으로 흡착하고, 상기 혼합물의 비흡착된 부분은 상기 흡착제와의 접촉에서 제거하고 메타크실렌은 탈착 조건에서 탈착제로 탈착시켜 회수하며, 여기서 흡착 조건은 100 내지 150℃의 온도를 포함하며, 흡착제는 500℃에서 1.5 내지 3.0중량% LOI의 수화정도를 갖는 것을 특징으로 하는, 상기 혼합물에서 메타크실렌을 분리하기 위한 방법.Contacting a mixture of metha xylene with at least one other C 8 aromatic hydrocarbon with an adsorbent consisting of Y zeolite containing sodium ions under adsorption conditions to selectively adsorb the metha xylene on the adsorbent, the nonadsorbed portion of the mixture Is removed by contact with the adsorbent and the metha xylene is recovered by desorption with a desorbent under desorption conditions, where the adsorption conditions include a temperature of 100 to 150 ℃, the adsorbent degree of hydration of 1.5 to 3.0% by weight LOI at 500 ℃ Characterized in that it has a process for separating metha xylene from the mixture. 제1항에 있어서, 상기 Y제올라이트가 리튬 및 나트륨 이온으로 교환된 것인 방법.The method of claim 1 wherein the Y zeolite is exchanged with lithium and sodium ions. 제1항에 있어서, 상기 흡착제가 500℃에서 2 내지 3중량%의 LOI를 갖는 것인 방법.The method of claim 1, wherein the adsorbent has a LOI of 2-3% by weight at 500 ° C. 3. 메타크실렌과 적어도 하나의 다른 크실렌의 혼합물을 액체 상기 흡착 조건에서 제올라이트 Y와 무정형바인더로 이루어진 흡착제와 접촉시켜서 메타크실렌을 상기 흡착제 상에 선택적으로 흡착시키고, 상기 혼합물의 비흡착된 부분은 상기 흡착제와의 접촉에서 제거하고, 상기 메타크실렌은 탈착 조건에서 탈착 조건에서 탈착제로 탈착하여 회수하며, 여기서 흡착제는 500℃에서 1.5 내지 3.0중량% LOI의 수화정도를 가지고, 제올라이트는 리튬 및 나트륨 이온을 모두 함유하고, 흡착 조건은 100 내지 150℃의 온도를 포함하는 것을 특징으로 하는, 상기 혼합물로부터 메타크실렌을 분리하기 위한 방법.A mixture of metha xylene and at least one other xylene is contacted with an adsorbent consisting of zeolite Y and an amorphous binder at liquid adsorption conditions to selectively adsorb metha xylene onto the adsorbent, and the nonadsorbed portion of the mixture is adsorbed with the adsorbent. Removed from contact with, the metha xylene is recovered by desorption with desorbent under desorption conditions under desorption conditions, where the adsorbent has a degree of hydration of 1.5 to 3.0% by weight LOI at 500 ℃, zeolite contains both lithium and sodium ions And the adsorption conditions comprise a temperature of 100 to 150 ° C. 2. 제4항에 있어서, 흡착 조건이 100 내지 145℃의 온도를 포함하는 것인 방법.The method of claim 4, wherein the adsorption conditions comprise a temperature of 100 to 145 ° C. 6. 제4항에 있어서, 상기 무정형 바인더가 점토로 이루어진 방법.The method of claim 4, wherein the amorphous binder consists of clay. 제4항에 있어서, 상기 Y제올라이트가 리튬 이온이 점유한 교환가능한 부위의 5 내지 35%를 갖는 것인 방법.The method of claim 4, wherein the Y zeolite has 5 to 35% of the exchangeable sites occupied by lithium ions. 제4항에 있어서, 흡착 조건이 120 내지 130℃의 온도를 포함하는 것인 방법.The method of claim 4, wherein the adsorption conditions comprise a temperature of 120 to 130 ° C. 6. 제4항에 있어서, 제올라이트가 500℃에서 2.0 내지 2.5중량%의 LOI를 갖는 것인 방법.The method of claim 4, wherein the zeolite has a LOI of 2.0 to 2.5 wt% at 500 ° C. 6. 제4항에 있어서, 탈착제가 톨루엔 또는 인단인 방법.The method of claim 4 wherein the desorbent is toluene or indane. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940030575A 1994-11-21 1994-11-21 Improved absorptive separation of metaxylene from aromatic hydrocarbons KR0153553B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940030575A KR0153553B1 (en) 1994-11-21 1994-11-21 Improved absorptive separation of metaxylene from aromatic hydrocarbons

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KR1019940030575A KR0153553B1 (en) 1994-11-21 1994-11-21 Improved absorptive separation of metaxylene from aromatic hydrocarbons

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KR960017596A true KR960017596A (en) 1996-06-17
KR0153553B1 KR0153553B1 (en) 1998-12-01

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