Process for producing light olefins and aromatics

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United States of America Patent

PATENT NO 9771529
SERIAL NO

14292945

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Abstract

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A process for producing light olefins and aromatics, which comprises reacting a feedstock by contacting with a catalytic cracking catalyst in at least two reaction zones, wherein the reaction temperature of at least one reaction zone among the reaction zones downstream of the first reaction zone is higher than that of the first reaction zone and its weight hourly space velocity is lower than that of the first reaction zone, separating the spent catalyst from the reaction product vapor, regenerating the separated spent catalyst and returning the regenerated catalyst to the reactor, and separating the reaction product vapor to obtain the desired products, light olefins and aromatics. This process produces maximum light olefins such as propylene, ethylene, etc from heavy feedstocks, wherein the yield of propylene exceeds 20% by weight, and produces aromatics such as toluene, xylene, etc at the same time.

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Patent Owner(s)

Patent OwnerAddress
CHINA PETROLEUM & CHEMICAL CORPORATION22 CHAOYANGMEN NORTH STREET CHAOYANG DISTRICT BEIJING 100728 CHINA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Da, Zhijian Beijing, CN 24 304
Li, Dadong Beijing, CN 29 213
Long, Jun Beijing, CN 108 878
Nie, Hong Beijing, CN 65 499
Shu, Xingtian Beijing, CN 48 345
Wang, Wei Beijing, CN 2815 17926
Wang, Xieqing Beijing, CN 18 253
Xie, Chaogang Beijing, CN 19 288
Zhang, Jiushun Beijing, CN 38 595
Zhang, Zhigang Beijing, CN 88 604

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