Method for regulating the gas velocity of the empty bed in a fluidized bed

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United States of America

PATENT NO 12186742
APP PUB NO 20230139652A1
SERIAL NO

17912271

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Abstract

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The invention relates to a method for regulating the gas velocity of the empty bed in a fluidized bed, wherein solid catalysts are used as fluidized particles or as a part of fluidized particles, characterized in that the gas velocity of the empty bed μ of the reaction zone of the fluidized bed is measured, compared with the bed average catalyst density ρ of the solid catalysts in the reaction zone of the fluidized bed, the gas velocity of the empty bed μ being adjusted as required such that the gas velocity of the empty bed μ and the bed average catalyst density ρ satisfy the formula (I) below: ρ=0.356μ3−4.319μ2−35.57μ+M; wherein M=250−; where μ is provided in m/s and ρ is provided in kg/m3. The method can be used for the industrial production of lower olefin.

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Patent Owner(s)

Patent OwnerAddress
CHINA PETROLEUM & CHEMICAL CORPORATION22 CHAOYANGMEN NORTH STREET CHAOYANG DISTRICT BEIJING 100728
SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY SINOPEC1658 PUDONG BEI ROAD PUDONG NEW AREA SHANGHAI 201208

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cao, Jing Shanghai, CN 51 330
Li, Xiaohong Shanghai, CN 96 551
Qi, Guozhen Shanghai, CN 20 44
Wang, Li Shanghai, CN 972 6677
Yu, Zhinan Shanghai, CN 13 16
Zong, Hongyuan Shanghai, CN 9 16

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