Method For Temporarily Interrupting A Fischer-Tropsch Reaction In A Three-Phase Bed Reactor

A process for temporarily interrupting a Fischer-Tropsch type reaction carried out on a feed comprising at least carbon monoxide and hydrogen is carried out in a three-phase reaction zone comprising a liquid phase, a gas phase and solid catalyst particles maintained in suspension, said process compr...

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Main Authors MARION MARIE CLAIRE, HUGUES FRANCOIS
Format Patent
LanguageEnglish
Published 23.10.2008
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Abstract A process for temporarily interrupting a Fischer-Tropsch type reaction carried out on a feed comprising at least carbon monoxide and hydrogen is carried out in a three-phase reaction zone comprising a liquid phase, a gas phase and solid catalyst particles maintained in suspension, said process comprising a step a) for interrupting the reaction and a step b) for restarting said reaction, during which the solid catalyst particles are maintained in suspension in the reaction zone; a) during the step for interrupting the reaction, supply of the feed is stopped, and a blanket of an inhibiting gas comprising less than 1% by volume of hydrogen and at least 5% by volume of at least one inhibiting compound selected from the group formed by carbon monoxide and water is established; and b) during the reaction restart step, in the reaction zone, a blanket of an activating gas with a hydrogen content of at least 20% by volume is established and supply of the feed is restarted.
AbstractList A process for temporarily interrupting a Fischer-Tropsch type reaction carried out on a feed comprising at least carbon monoxide and hydrogen is carried out in a three-phase reaction zone comprising a liquid phase, a gas phase and solid catalyst particles maintained in suspension, said process comprising a step a) for interrupting the reaction and a step b) for restarting said reaction, during which the solid catalyst particles are maintained in suspension in the reaction zone; a) during the step for interrupting the reaction, supply of the feed is stopped, and a blanket of an inhibiting gas comprising less than 1% by volume of hydrogen and at least 5% by volume of at least one inhibiting compound selected from the group formed by carbon monoxide and water is established; and b) during the reaction restart step, in the reaction zone, a blanket of an activating gas with a hydrogen content of at least 20% by volume is established and supply of the feed is restarted.
Author HUGUES FRANCOIS
MARION MARIE CLAIRE
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Snippet A process for temporarily interrupting a Fischer-Tropsch type reaction carried out on a feed comprising at least carbon monoxide and hydrogen is carried out in...
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SubjectTerms ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
CRACKING HYDROCARBON OILS
FUELS
LUBRICANTS
METALLURGY
MINERAL WAXES
ORGANIC CHEMISTRY
PEAT
PERFORMING OPERATIONS
PETROLEUM, GAS OR COKE INDUSTRIES
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION
RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES
REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS
REFORMING OF NAPHTHA
TECHNICAL GASES CONTAINING CARBON MONOXIDE
THEIR RELEVANT APPARATUS
TRANSPORTING
Title Method For Temporarily Interrupting A Fischer-Tropsch Reaction In A Three-Phase Bed Reactor
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