[특허]Vapor phase oxidation of propylene to acrolein

[미국특허] Vapor phase oxidation of propylene to acrolein 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C07C-045/35
출원번호	US-0543835 (2000-04-06)
발명자 / 주소	Rashmikant Maganlal Contractor Mark William Andersen Daniel Campos Gerard Hecquet FR Roland Kotwica FR Charlotte Pham FR Michel Simon FR Mireille Stojanovic FR
출원인 / 주소	E. I. du Pont de Nemours and Company Atofina FR
인용정보	피인용 횟수 : 11 인용 특허 : 13

초록 ▼

An improved method for the selective vapor phase oxidation of propylene to acrolein in a recirculating solids reactor system using a bismuth molybdate multimetal oxide involving specific reactant concentrations (preferably 5 mol % to 30 mol % propylene, 0 to 20 mol % oxygen, and the remainder inert gas), particle size (1 to 300 micrometers), temperature (250 to 450.degree. C.) and gas (1 to 15 seconds) and solids (2 to 60 seconds) residence times. Such a process leads to improved selectivity and propylene conversion.

대표청구항 ▼

1. A process for the selective vapor phase oxidation of propylene to acrolein, comprising the steps of:(a) contacting a feed gas containing from 1 mol % to 100 mol % propylene, 0 to 20 mol % oxygen, 0 to 70 mol % water, and the remainder inert gas with an effective amount of the bismuth molybdate multimetal oxide in oxidized form comprised of solid particles from 10 to 300 micrometers in size, in a transport bed reactor at a temperature of 250 to 450.degree. C., a gas residence time in the reaction zone of 1 second to 15 seconds, and a solids residence time in the reaction zone of 2 seconds to 60 seconds to convert at least a portion of said proylene to acrolein using said bismuth molybdate multimetal oxide in oxidized form as a direct oxidant; (b) removing the effluent produced in the transport bed reactor of step (a) and separating the resultant reduced bismuth molybdate multimetal oxide from the effluent gases, transporting the reduced bismuth molybdate multimetal oxide to a regenerator zone of the recirculating solids reactor system, and recovering acrolein from the effluent gases; (c) oxidizing the reduced bismuth molybdate multimetal oxide in the regenerator zone using an oxygen containing gas, at a temperature of 250 to 500.degree. C. at a solids residence time in the regenerator zone from 0.5 minute to 10 minutes, and at an oxygen-containing gas residence time from 3 seconds to 30 seconds; and (d) recycling the oxidized bismuth molybdate multimetal oxide produced in step (c) to the transport bed reactor.

이 특허에 인용된 특허 (13) 인용/피인용 타임라인 분석

Bergna Horacio E. (Wilmington DE), Attrition resistant catalysts, catalyst precursors and catalyst supports and process for preparing same.
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Boeck Wolfgang (Langenselbold DEX) Arntz Dietrich (Oberursel NY DEX) Prescher Guenter (Larchmont NY) Burkhardt Werner (Brachtal DEX), Catalyst for catalytic gas phase oxidation of olefins into unsaturated aldehydes and method for making the catalyst.
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Contractor Rashmikant M. (Wilmington DE), Improved vapor phase catalytic oxidation of butane to maleic anhydride.
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Bergna Horacio E. (Wilmington DE), Method of making maleic anhydride.
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Suresh Dev D. (Macedonia OH) Zagata Robert J. (Seven Hills OH) Friedrich Maria S. (Lyndhurst OH) Seely Michael J. (Chagrin Falls OH), Method of preparation of high active phase (AMM)oxidation catalysts with improved performance and attrition resistance.
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Arntz Dietrich (Hanau DEX) Prescher Gnter (Hanau DEX) Burkhardt Werner (Brachttal DEX) Heilos Johannes (Seligenstadt DEX) Manner Reinhard (Maintal DEX), Process for preparing abrasion-resistant coated catalysts.
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Beuther ; Harold ; Innes ; Robert A. ; Swift ; Harold E., Process for preparing acrylonitrile.
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Arntz Dietrich (Hanau DEX) Prescher Gnter (Hanau DEX) Heilos Johannes (Seligenstadt DEX), Process for preparing by catalytic oxidation in oxygen-containing gas mixtures, acrolein from propylene and methacrolein.
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Sarumaru Kohei (Ami JPX) Shibano Takeshi (Yokkaichi JPX) Ishii Yoichi (Ami JPX) Yamamoto Etsuji (Ami JPX), Process for regenerating a catalyst.
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Boeck Wolfgang (Langenselbold DEX) Arntz Dietrich (Oberursel NY DEX) Prescher Guenter (Larchmont NY) Burkhardt Werner (Brachtal DEX), Process for the production of acrolein by catalytic gas-phase oxidation of propene.
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Callahan James L. (Bedford Heights OH) Hardman Harley F. (Lyndhurst OH) Milberger Ernest C. (Solon OH), Reactor for contacting gases and a particulate solid.
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Callahan James L. (Bedford Heights OH) Hardman Harley F. (Lyndhurst OH) Milberger Ernest C. (Solon OH), Reactor for contacting gases and a particulate solid.
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Contractor Rashmikant M. (Wilmington DE) Horowitz Harold S. (Wilmington DE) Sisler Gregg M. (Newark DE), Vapor phase catalytic oxidation of N-butane to maleic anhydride incorporating in situ catalyst calcination/activation.
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이 특허를 인용한 특허 (11) 인용/피인용 타임라인 분석

Krutka, Holly; Wilson, Cody; Starns, Travis, Fluidized bed and method and system for gas component capture.
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Kurian,Joseph V.; Fenyvesi,Gyorgyi; Sunkara,Hari Babu, High crimp bicomponent fibers.
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Lugmair, Claus G.; Li, Hailian, Metal oxide catalyst material and processes for making and using same.
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Krutka, Holly; Sjostrom, Sharon; Morris, William J., Method and system to reclaim functional sites on a sorbent contaminated by heat stable salts.
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Dubois, Jean-Luc; Patience, Grégory, Method for the reactive vaporization of glycerol.
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Kurian, Joseph V.; Godwin, Richard E.; Chang, Jing C., Poly(trimethylene terephthalate)/poly(alpha-hydroxy acid) bi-constituent filaments.
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Kurian, Joseph V.; Godwin, Richard E.; Chang, Jing-Chung, Poly(trimethylene terephthalate)/poly(alpha-hydroxy acid) biconstituent filaments.
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Brophy, John H.; Pesa, Frederick A.; Tonkovich, Anna Lee; McDaniel, Jeffrey S.; Jarosch, Kai Tod Paul, Process for converting a hydrocarbon to an oxygenate or a nitrile.
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Brophy,John H.; Pesa,Frederick A.; Tonkovich,Anna Lee; McDaniel,Jeffrey S.; Jarosch,Kai Tod Paul, Process for converting a hydrocarbon to an oxygenate or a nitrile.
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Jinno,Kimikatsu; Ogawa,Yasushi; Suzuki,Yoshiro; Yada,Shuhei, Process for producing (meth)acrylic acid or (meth)acrolein.
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Kurian, Joseph V.; Fenyvesi, Gyorgyi; Sunkara, Hari Babu, Process of making high crimp bicomponent fibers.
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A	생활필수품
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[미국특허] Vapor phase oxidation of propylene to acrolein 원문보기