FLUIDIZED CATALYTIC CONVERSION METHOD FOR PREPARING LOW-CARBON OLEFINS

Disclosed is a fluidized catalytic conversion method for producing light olefins, comprising the following steps: 1) introducing an olefin-rich feedstock into a fluidized catalytic conversion reactor, and contacting with a catalyst having a temperature of 650 °C or higher for reaction; 2) separating...

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Bibliographic Details
Main Authors LUO, Yibin, DU, Lingyin, XU, Youhao, HAN, Yueyang, SHU, Xingtian, WANG, Xieqing, ZUO, Yanfen, ZHANG, Yunpeng
Format Patent
LanguageEnglish
French
German
Published 01.11.2023
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
CRACKING HYDROCARBON OILS
FUELS
LUBRICANTS
METALLURGY
MINERAL WAXES
ORGANIC CHEMISTRY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
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
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Summary:Disclosed is a fluidized catalytic conversion method for producing light olefins, comprising the following steps: 1) introducing an olefin-rich feedstock into a fluidized catalytic conversion reactor, and contacting with a catalyst having a temperature of 650 °C or higher for reaction; 2) separating the reaction product vapor obtained by the reaction to obtain a stream comprising C5+ olefins; and 3) recycling at least a part of the stream comprising C5+ olefins to step 1) for further reaction. The fluidized catalytic conversion method can effectively improve the yield of light olefins, improve the selectivity and improve the ethylene/propylene ratio of the product.
Bibliography:Application Number: EP20210917016