ES2173395T3 - Procedimiento para la produccion de acrilonitrilo. - Google Patents

Procedimiento para la produccion de acrilonitrilo.

Info

Publication number
ES2173395T3
ES2173395T3 ES97308934T ES97308934T ES2173395T3 ES 2173395 T3 ES2173395 T3 ES 2173395T3 ES 97308934 T ES97308934 T ES 97308934T ES 97308934 T ES97308934 T ES 97308934T ES 2173395 T3 ES2173395 T3 ES 2173395T3
Authority
ES
Spain
Prior art keywords
reaction
amoxidation
reactor
fluidized
catalyst
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.)
Expired - Lifetime
Application number
ES97308934T
Other languages
English (en)
Inventor
Toshio Nakamura
Hachiro Arai
Hideyuki Inaba
Hiroshi Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Rayon 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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Application granted granted Critical
Publication of ES2173395T3 publication Critical patent/ES2173395T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/24—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons
    • C07C253/26—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons containing carbon-to-carbon multiple bonds, e.g. unsaturated aldehydes
    • 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
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
    • 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
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)

Abstract

EN UN PROCESO PARA PRODUCIR ACRILONITRILO POR AMOXIDACION DE PROPILENO, QUE INCLUYE PONER EN CONTACTO, EN UN REACTOR DE LECHO FLUIDIZADO, UN GAS QUE CONTIENE PROPILENO, AMONIACO Y OXIGENO MOLECULAR, CON UN CATALIZADOR DE AMOXIDACION DE ALTA ACTIVIDAD (SIENDO ESTE CATALIZADOR UNO QUE PUEDE ALCANZAR UNA CONSTANTE DE VELOCIDAD DE 2 S SUP,-1} O SUPERIOR PARA LA REACCION DE AMOXIDACION DE PROPILENO, ASUMIENDO QUE LA REACCION ES UNA REACCION DE PRIMER ORDEN) QUE ESTA EN ESTADO DE SER FLUIDIZADO POR EL GAS, COMPRENDIENDO LA MEJORA LLEVAR A CABO LA AMOXIDACION EN LAS SIGUIENTES CONDICIONES: (A) LA VELOCIDAD SUPERFICIAL DEL GAS EN EL REACTOR DE LECHO FLUIDIZADO SE MANTIENE ENTRE 1 Y 10 M/S BAJO CONDICION DE OPERACION TAL QUE LA CONSTANTE DE VELOCIDAD DE LA REACCION DE AMOXIDACION DEL PROPILENO SEA DE 2 S SUP,-1} O SUPERIOR ASUMIENDO QUE LA REACCION ES UNA REACCION DE PRIMER ORDEN; (B) SE MANTIENE EN EL LADO CORRIENTE ARRIBA DEL REACTOR DE LECHO FLUIDIZADO UN AREA EN EL QUE LA DENSIDAD DE MATERIA SOLIDA FLUIDIZADA ES DE 100 KG/M SUP,3} O SUPERIOR; Y (C) SE INCLUYE EN EL REACTOR DE LECHO FLUIDIZADO UN SISTEMA PARA EL RECICLADO DEL CATALIZADOR DE AMOXIDACION SUMINISTRADO A LA REACCION ENTRE EL LADO SUPERIOR DE LA CORRIENTE Y EL LADO INFERIOR DE LA CORRIENTE DENTRO DEL REACTOR, Y SE INTRODUCE EL CATALIZADOR RECICLADO DENTRO DEL REACTOR EN UNA POSICION TAL QUE LA RELACION ENTRE EL PESO DE CATALIZADOR DE AMOXIDACION PRESENTE EN UN AREA POR ENCIMA DE LA POSICION DE INTRODUCCION Y EL PESO DE CATALIZADOR DE AMOXIDACION PRESENTE EN UN AREA POR DEBAJO DE LA POSICION SEA DE ENTRE 2:1 Y 99:1.
ES97308934T 1996-11-06 1997-11-06 Procedimiento para la produccion de acrilonitrilo. Expired - Lifetime ES2173395T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29412296A JP3976824B2 (ja) 1996-11-06 1996-11-06 アクリロニトリルの製造法

Publications (1)

Publication Number Publication Date
ES2173395T3 true ES2173395T3 (es) 2002-10-16

Family

ID=17803585

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97308934T Expired - Lifetime ES2173395T3 (es) 1996-11-06 1997-11-06 Procedimiento para la produccion de acrilonitrilo.

Country Status (7)

Country Link
US (1) US5914424A (es)
EP (1) EP0842922B1 (es)
JP (1) JP3976824B2 (es)
CN (1) CN1113858C (es)
DE (1) DE69712157T2 (es)
ES (1) ES2173395T3 (es)
NL (1) NL1007469C2 (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5883281A (en) * 1997-07-25 1999-03-16 Praxair Technology, Inc. Oxygen addition to reduce inerts in an acrylonitrile reactor
JP4889866B2 (ja) * 2001-02-06 2012-03-07 ダイヤニトリックス株式会社 アクリロニトリルの製造方法
US6890877B2 (en) * 2002-07-09 2005-05-10 Conocophillips Company Enhanced fluid/solids contacting in a fluidization reactor
JP4762554B2 (ja) * 2005-01-06 2011-08-31 ダイヤニトリックス株式会社 アクリロニトリルの製造方法
CN102010350B (zh) * 2009-09-07 2013-12-18 中国石油化工集团公司 增加丙烯腈或甲基丙烯腈生产能力的方法
MY157741A (en) * 2010-04-30 2016-07-15 Asahi Kasei Chemicals Corp Apparatus for removing catalyst surface substances
WO2015137925A1 (en) 2014-03-11 2015-09-17 Ineos Europe Ag Acrylonitrile reactor startup procedure
EA032235B1 (ru) * 2014-03-11 2019-04-30 ИНЕОС Юроп АГ Процедура запуска реактора получения акрилонитрила
CN104672106A (zh) * 2015-03-06 2015-06-03 英尼奥斯欧洲股份公司 改进的丙烯腈制造
CN106478457A (zh) * 2015-09-02 2017-03-08 中国石油化工股份有限公司 改进的丙烯氨氧化工艺及其反应器
CN107413285B (zh) * 2016-05-24 2021-09-07 英尼奥斯欧洲股份公司 氨氧化反应器控制
US10894762B2 (en) * 2017-07-03 2021-01-19 Asahi Kasei Kabushiki Kaisha Process for producing unsaturated nitrile
JPWO2019220521A1 (ja) * 2018-05-15 2021-06-10 旭化成株式会社 不飽和ニトリルの製造方法
JP7320346B2 (ja) * 2018-11-28 2023-08-03 旭化成株式会社 不飽和ニトリルの製造方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102914A (en) * 1977-05-20 1978-07-25 Gulf Research & Development Company Process for preparing acrylonitrile
US4246192A (en) * 1979-10-29 1981-01-20 Uop Inc. Ammoxidation process with isolated catalyst regeneration zone
US4339394A (en) * 1980-10-01 1982-07-13 The Standard Oil Co. Process of ammoxidation of olefins in the presence of multiply promoted Sn-Sb oxide catalysts
US4668802A (en) * 1985-01-18 1987-05-26 E. I. Du Pont De Nemours And Company Improved vapor phase catalytic oxidation of butane to maleic anhydride

Also Published As

Publication number Publication date
US5914424A (en) 1999-06-22
EP0842922A1 (en) 1998-05-20
CN1113858C (zh) 2003-07-09
DE69712157D1 (de) 2002-05-29
DE69712157T2 (de) 2002-10-02
JP3976824B2 (ja) 2007-09-19
JPH10139749A (ja) 1998-05-26
EP0842922B1 (en) 2002-04-24
NL1007469A1 (nl) 1998-05-08
NL1007469C2 (nl) 1998-07-15
CN1188105A (zh) 1998-07-22

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