CA2411070C - Process for operating the epoxidation of ethylene with supported silver catalysts - Google Patents

Process for operating the epoxidation of ethylene with supported silver catalysts Download PDF

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Publication number
CA2411070C
CA2411070C CA2411070A CA2411070A CA2411070C CA 2411070 C CA2411070 C CA 2411070C CA 2411070 A CA2411070 A CA 2411070A CA 2411070 A CA2411070 A CA 2411070A CA 2411070 C CA2411070 C CA 2411070C
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CA
Canada
Prior art keywords
ethylene
catalyst
ethylene oxide
concentration
operation phase
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
CA2411070A
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English (en)
French (fr)
Other versions
CA2411070A1 (en
Inventor
Wayne Errol Evans
Peter Ingraham Chipman
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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Filing date
Publication date
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Application filed by Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of CA2411070A1 publication Critical patent/CA2411070A1/en
Application granted granted Critical
Publication of CA2411070C publication Critical patent/CA2411070C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/66—Silver or gold
    • B01J23/68—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/688—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with manganese, technetium or rhenium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D301/00—Preparation of oxiranes
    • C07D301/02—Synthesis of the oxirane ring
    • C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
    • C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
    • C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
    • C07D301/10—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase with catalysts containing silver or gold
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Epoxy Compounds (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
CA2411070A 2000-06-09 2001-06-05 Process for operating the epoxidation of ethylene with supported silver catalysts Expired - Lifetime CA2411070C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US59152500A 2000-06-09 2000-06-09
US09/591,525 2000-06-09
US09/735,360 US6372925B1 (en) 2000-06-09 2000-12-12 Process for operating the epoxidation of ethylene
US09/735,360 2000-12-12
PCT/US2001/018097 WO2001096324A2 (en) 2000-06-09 2001-06-05 Process for operating the epoxidation of ethylene

Publications (2)

Publication Number Publication Date
CA2411070A1 CA2411070A1 (en) 2001-12-20
CA2411070C true CA2411070C (en) 2010-08-10

Family

ID=27081174

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2411070A Expired - Lifetime CA2411070C (en) 2000-06-09 2001-06-05 Process for operating the epoxidation of ethylene with supported silver catalysts

Country Status (18)

Country Link
US (2) US6372925B1 (enExample)
EP (1) EP1292587B1 (enExample)
JP (1) JP5097325B2 (enExample)
KR (1) KR100827473B1 (enExample)
CN (1) CN1217941C (enExample)
AT (1) ATE342259T1 (enExample)
AU (1) AU2001266704A1 (enExample)
BR (1) BR0111475B1 (enExample)
CA (1) CA2411070C (enExample)
DE (1) DE60123788T2 (enExample)
ES (1) ES2269421T3 (enExample)
GC (1) GC0000430A (enExample)
IN (1) IN2002DE01165A (enExample)
MX (1) MXPA02012036A (enExample)
MY (1) MY128386A (enExample)
RU (1) RU2263670C2 (enExample)
TW (1) TWI230707B (enExample)
WO (1) WO2001096324A2 (enExample)

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6372925B1 (en) * 2000-06-09 2002-04-16 Shell Oil Company Process for operating the epoxidation of ethylene
US7193094B2 (en) 2001-11-20 2007-03-20 Shell Oil Company Process and systems for the epoxidation of an olefin
CN100376561C (zh) * 2002-06-28 2008-03-26 国际壳牌研究有限公司 环氧化方法的开车方法、烯烃环氧化的催化剂和方法
BR0312244B1 (pt) * 2002-06-28 2013-06-25 mÉtodo para melhorar a seletividade de um catalisador e um processo para a epoxidaÇço de uma olefina
RU2005102097A (ru) * 2002-06-28 2005-08-27 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) Способ введения в действие способа эпоксидирования и способ эпоксидирования олефина
AU2003284195A1 (en) * 2002-10-28 2004-05-25 Shell Internationale Research Maatschappij B.V. Olefin oxide catalysts
MY146505A (en) * 2003-02-28 2012-08-15 Shell Int Research A method of manufacturing ethylene oxide
MY136774A (en) * 2003-02-28 2008-11-28 Shell Int Research Method of improving the operation of a manufacturing process
MY153179A (en) * 2003-02-28 2015-01-29 Shell Int Research A method of manufacturing ethylene oxide
TWI346574B (en) 2003-03-31 2011-08-11 Shell Int Research A catalyst composition, a process for preparing the catalyst composition and a use of the catalyst composition
TW200507933A (en) * 2003-04-01 2005-03-01 Shell Int Research An olefin epoxidation process and a catalyst for use in the process
US7348444B2 (en) * 2003-04-07 2008-03-25 Shell Oil Company Process for the production of an olefin oxide
US6858560B2 (en) 2003-04-23 2005-02-22 Scientific Design Co., Inc. Ethylene oxide catalyst
US20040225138A1 (en) * 2003-05-07 2004-11-11 Mcallister Paul Michael Reactor system and process for the manufacture of ethylene oxide
TW200500351A (en) 2003-05-07 2005-01-01 Shell Int Research Silver-containing catalysts, the manufacture of such silver- containing catalysts, and the use thereof
US8148555B2 (en) * 2003-06-26 2012-04-03 Shell Oil Company Method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin
TW200602123A (en) * 2004-04-01 2006-01-16 Shell Int Research Process for preparing a catalyst, the catalyst, and a use of the catalyst
EP2617488A3 (en) 2004-09-01 2014-01-22 Shell Internationale Research Maatschappij B.V. Process for preparing a catalyst for use in an olefin epoxidation process and epoxidation process using the catalyst
US8536083B2 (en) 2004-09-01 2013-09-17 Shell Oil Company Olefin epoxidation process, a catalyst for use in the process, a carrier for use in preparing the catalyst, and a process for preparing the carrier
WO2006036677A2 (en) * 2004-09-24 2006-04-06 Shell Internationale Research Maatschappij B.V. A process for selecting shaped particles, a process for installing a system, a process for reacting a gaseous feedstock in such a system, a computer program product, and a computer system
WO2006090754A1 (ja) * 2005-02-25 2006-08-31 Sumitomo Chemical Company, Limited 酸化オレフィンの製造法
JP5421587B2 (ja) * 2005-03-22 2014-02-19 シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー エチレンオキシドの製造のための反応器システムおよびプロセス
BRPI0611676B1 (pt) 2005-06-07 2015-08-11 Shell Int Research Catalisador, processo para a preparação do catalisador, e processo para a produção de um óxido de olefina, um 1,2- diol, e um 1,2-diol éter e uma alcanolamina
ZA200610755B (en) * 2005-12-22 2008-05-28 Shell Int Research A process for the preparation of an olefin oxide or a chemical derivable from an olefin oxide
US7459589B2 (en) 2005-12-22 2008-12-02 Shell Oil Company Process for the preparation of an alkylene glycol
US7750170B2 (en) 2005-12-22 2010-07-06 Shell Oil Company Process for mixing an oxidant having explosive potential with a hydrocarbon
CN101410178A (zh) * 2006-02-03 2009-04-15 国际壳牌研究有限公司 催化剂的处理方法,催化剂和催化剂的用途
RU2008136381A (ru) * 2006-02-10 2010-03-20 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) Способ получения катализатора, катализатор и способ получения олефиноксида, 1,2-диола, простого эфира 1,2,-диола или алканоламина
US7553795B2 (en) * 2006-03-21 2009-06-30 Sd Lizenzverwertungsgesellschaft Mbh & Co. Kg Activation of high selectivity ethylene oxide catalyst
EP2013194A2 (de) * 2006-04-21 2009-01-14 Basf Se Verfahren zur herstellung von ethylenoxid in einem mikrokanalreaktor
US8097557B2 (en) * 2006-08-08 2012-01-17 Sd Lizenverwertungsgesellschaft Mbh & Co. Kg Two-stage calcination for catalyst production
WO2008030386A1 (en) * 2006-09-01 2008-03-13 Dow Global Technologies Inc. Improved control and optimization of process for making ethylene oxide
US7977274B2 (en) * 2006-09-29 2011-07-12 Sd Lizenzverwertungsgesellschaft Mbh & Co. Kg Catalyst with bimodal pore size distribution and the use thereof
CA2685512C (en) 2007-05-09 2016-12-06 Shell Internationale Research Maatschappij B.V. An epoxidation catalyst, a process for preparing the catalyst, and a process for the production of an olefin oxide, a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate, or an alkanolamine
WO2008141030A1 (en) 2007-05-09 2008-11-20 Shell Oil Company A process for the production of an olefin oxide, a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate, or an alkanolamine
CA2686825C (en) * 2007-05-09 2016-09-13 Shell Internationale Research Maatschappij B.V. An epoxidation catalyst, a process for preparing the catalyst, and a process for the production of an olefin oxide, a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate, or an alkanolamine
US9144765B2 (en) 2007-05-18 2015-09-29 Shell Oil Company Reactor system, an absorbent and a process for reacting a feed
CN101687159B (zh) 2007-05-18 2013-04-03 国际壳牌研究有限公司 反应器系统、吸收剂和用于使原料反应的方法
US20090050535A1 (en) * 2007-05-18 2009-02-26 Wayne Errol Evans Reactor system, and a process for preparing an olefin oxide, a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate and an alkanolamine
US8290626B2 (en) * 2007-09-10 2012-10-16 SD Lizenzverwertungsgesellschadt mbH & Co KG Chemical process optimization method that considers chemical process plant safety
US7803957B2 (en) 2007-09-11 2010-09-28 Sd Lizenzverwertungsgesellschaft Mbh & Co. Kg Ethylene oxide production using fixed moderator concentration
DE102008011767B4 (de) 2008-02-28 2012-07-26 Basf Se Verfahren zur Herstellung von olefinisch ungesättigten Carbonylverbindungen durch oxidative Dehydrierung von Alkoholen
DE102008014910A1 (de) 2008-03-19 2009-09-24 Basf Se Verwendung eines geträgerten edelmetallhaltigen Katalysators zur oxidativen Dehydrierung
US7763096B2 (en) * 2008-05-06 2010-07-27 Sd Lizenzverwertungsgesellschaft Mbh & Co. Kg Recovery of rhenium
WO2009137427A2 (en) 2008-05-07 2009-11-12 Shell Oil Company A process for the start-up of an epoxidation process, a process for the production of ethylene oxide, a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate, or an alkanolamine
KR101629038B1 (ko) * 2008-05-07 2016-06-09 셀 인터나쵸나아레 레사아치 마아츠샤피 비이부이 산화올레핀, 1,2-디올, 1,2-디올 에테르, 1,2-카보네이트 또는 알칸올아민의 생산방법
RU2506123C2 (ru) 2008-05-15 2014-02-10 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Способ получения алкиленкарбоната и алкиленгликоля
CN102066351B (zh) 2008-05-15 2014-03-12 国际壳牌研究有限公司 制备亚烷基碳酸酯和/或亚烷基二醇的方法
DE102008025835A1 (de) 2008-05-29 2009-12-03 Bayer Technology Services Gmbh Verfahren zur Herstellung von Ethylenoxid
WO2009150208A1 (en) * 2008-06-13 2009-12-17 Shell Internationale Research Maatschappij B.V. Method for measuring the selectivity of a process for the production of ethylene oxide
EP2313385A2 (en) * 2008-07-14 2011-04-27 Velocys Inc. Process for making ethylene oxide using microchannel process technology
BRPI0915854A2 (pt) * 2008-07-14 2015-08-04 Basf Se Processo para preparar óxido de etileno
US8349765B2 (en) 2008-07-18 2013-01-08 Scientific Design Company, Inc. Mullite-containing carrier for ethylene oxide catalysts
US8524927B2 (en) 2009-07-13 2013-09-03 Velocys, Inc. Process for making ethylene oxide using microchannel process technology
CA2779260A1 (en) * 2009-11-10 2011-05-19 Shell Internationale Research Maatschappij B.V. Process for producing ethylene oxide
JP2012522061A (ja) * 2009-12-28 2012-09-20 ダウ テクノロジー インベストメンツ リミティド ライアビリティー カンパニー アルキレンオキサイドの製造における銀触媒上への塩化銀の生成の制御方法
JP2013543496A (ja) 2010-09-29 2013-12-05 シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー 改善されたeoプロセス制御
US8742146B2 (en) 2010-12-08 2014-06-03 Shell Oil Company Process for improving the selectivity of an EO catalyst
US8742147B2 (en) 2010-12-08 2014-06-03 Shell Oil Company Process for improving the selectivity of an EO catalyst
US8884037B2 (en) 2010-12-10 2014-11-11 Dow Technology Investments Llc Method of reducing the value of an alkylene oxide production parameter in a process of making an alkylene oxide using a high efficiency catalyst
WO2012082389A1 (en) 2010-12-15 2012-06-21 Dow Technology Investments Llc Method of starting-up a process of producing an alkylene oxide using a high-efficiency catalyst
CN102558099B (zh) * 2010-12-29 2014-11-12 中国石油化工股份有限公司 由乙烯生产环氧乙烷的方法
RU2606504C2 (ru) 2011-04-29 2017-01-10 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Способ повышения селективности катализатора эпоксидирования
CN104080778B (zh) * 2011-12-09 2016-08-24 陶氏技术投资有限责任公司 在利用高效催化剂制造环氧烷的工艺中保持环氧烷生产参数值的方法
FR3001968B1 (fr) * 2013-02-12 2015-02-27 IFP Energies Nouvelles Procede de production d'oxyde d'ethylene a partir d'un flux d'ethanol thermo-mecaniquement integre
CN104888855B (zh) * 2015-04-03 2017-03-01 江南大学 一种用于烯烃环氧化反应的乙酰丙酮氧钼固体催化剂及其制备方法
KR20230027318A (ko) * 2016-08-09 2023-02-27 사이언티픽 디자인 컴파니 인코포레이티드 글리콜 에테르 제조 방법
US11801493B2 (en) 2016-12-02 2023-10-31 Shell Usa, Inc. Methods for conditioning an ethylene epoxidation catalyst and associated methods for the production of ethylene oxide
US11059017B2 (en) 2017-09-15 2021-07-13 MultiPhase Solutions, Inc. Halogen selective detection gas chromatography for the on-line analysis and control of selective oxidation chemical production processes
US11498911B2 (en) 2017-12-08 2022-11-15 Shell Usa, Inc. Process for preparing ethylene carbonate and ethylene glycol

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1191983A (en) 1968-04-11 1970-05-13 Sir Soc Italiana Resine Spa Preparation of Ethylene Oxide
US3960775A (en) 1969-08-26 1976-06-01 Snam Progetti S.P.A. Catalyst for the production of ethylene oxide
GB1319004A (en) * 1971-07-13 1973-05-31 Nippon Catalytic Chem Ind Process for preparing ethylene oxide
IT972792B (it) * 1972-12-22 1974-05-31 Sir Soc Italiana Resine Spa Procedimento per la preparazione di glicoli eteri
DE2605991A1 (de) * 1976-02-14 1977-08-25 Hoechst Ag Verfahren zur erhoehung der selektivitaet bei der herstellung von aethylenoxid
US4400559A (en) * 1982-06-14 1983-08-23 The Halcon Sd Group, Inc. Process for preparing ethylene glycol
IL84232A (en) * 1986-10-31 1992-06-21 Shell Int Research Catalyst and process for the catalytic production of ethylene oxide
EP0357293B1 (en) 1988-08-30 1996-02-28 Union Carbide Corporation Catalysts for the production of ethylene oxide and their preparation processes
CA1337722C (en) * 1989-04-18 1995-12-12 Madan Mohan Bhasin Alkylene oxide catalysts having enhanced activity and/or stability
US5177225A (en) 1990-07-09 1993-01-05 The Boc Group, Inc. Process for the production of alkylene oxide
US5155242A (en) * 1991-12-05 1992-10-13 Shell Oil Company Process for starting-up an ethylene oxide reactor
EP0557833B1 (de) * 1992-02-20 1996-08-21 BASF Aktiengesellschaft Verfahren zur Herstellung von Ethylenoxid
CA2078480A1 (en) * 1992-04-20 1993-10-21 Bennie Albert Horrell Jr. Improved process for ethylene epoxidation
US5262551A (en) 1992-04-20 1993-11-16 Texaco Chemical Company Process for ethylene expoxidation
US5447897A (en) * 1993-05-17 1995-09-05 Shell Oil Company Ethylene oxide catalyst and process
CA2170032C (en) * 1993-08-23 2005-06-21 Marek Matusz Ethylene oxide catalyst
US5380697A (en) * 1993-09-08 1995-01-10 Shell Oil Company Ethylene oxide catalyst and process
JP3403476B2 (ja) * 1993-12-28 2003-05-06 株式会社日本触媒 エチレンオキシドの製造方法
US5545603A (en) * 1994-11-01 1996-08-13 Shell Oil Company Ethylene oxide catalyst and process
DE19843697A1 (de) * 1998-09-23 2000-03-30 Basf Ag Verfahren zur Herstellung von hochreinem Monoethylenglykol
US6372925B1 (en) * 2000-06-09 2002-04-16 Shell Oil Company Process for operating the epoxidation of ethylene

Also Published As

Publication number Publication date
WO2001096324A3 (en) 2002-03-28
US20030139633A1 (en) 2003-07-24
CN1437590A (zh) 2003-08-20
RU2263670C2 (ru) 2005-11-10
DE60123788T2 (de) 2007-09-06
DE60123788D1 (de) 2006-11-23
CA2411070A1 (en) 2001-12-20
JP5097325B2 (ja) 2012-12-12
MY128386A (en) 2007-01-31
US6372925B1 (en) 2002-04-16
US6717001B2 (en) 2004-04-06
TWI230707B (en) 2005-04-11
EP1292587B1 (en) 2006-10-11
KR100827473B1 (ko) 2008-05-06
WO2001096324A2 (en) 2001-12-20
AU2001266704A1 (en) 2001-12-24
JP2004503548A (ja) 2004-02-05
IN2002DE01165A (enExample) 2008-09-26
BR0111475A (pt) 2003-03-25
KR20030034090A (ko) 2003-05-01
GC0000430A (en) 2007-09-30
CN1217941C (zh) 2005-09-07
EP1292587A2 (en) 2003-03-19
ES2269421T3 (es) 2007-04-01
MXPA02012036A (es) 2003-06-06
ATE342259T1 (de) 2006-11-15
MX231687B (enExample) 2005-10-28
BR0111475B1 (pt) 2012-04-17

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