Method for refining styrene by using combined falling film reboilers and heat pump technology to provide heat source of separation column

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United States of America Patent

PATENT NO 12121835
APP PUB NO 20240238694A1
SERIAL NO

18009541

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Abstract

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The present disclosure provides a method for refining styrene by using falling film reboilers and heat pump technology to provide a heat source required by a separation column. According to the method, high-concentration gas-phase ethylbenzene separated from a top of a low pressure ethylbenzene/styrene column is directly pressurized through a compressor, or a heat pump working medium is gasified using the high-concentration gas-phase ethylbenzene separated from the top of the low pressure ethylbenzene/styrene column, and the gasified heat pump working medium is pressurized. The directly pressurized high-concentration gas-phase ethylbenzene or the indirectly gasified and pressurized high-concentration gas-phase ethylbenzene is fed into the falling film reboiler with low heat transfer temperature difference requirement to serve as a heat source of a pre-separation column and/or a styrene product column in a styrene separation process.

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Patent Owner(s)

Patent OwnerAddress
CHANGZHOU RUIHUA CHEMICAL ENGINEERING TECHNOLOGY CO LTDROOM 1718 NO 398-1 TONGJIANG MIDDLE ROAD XINBEI DISTRICT CHANGZHOU JIANGSU 213022 213022

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Xia Jiangsu, CN 96 984
Gu, Jiahui Jiangsu, CN 3 0
He, Chenggang Jiangsu, CN 3 0
Xu, Zhigang Jiangsu, CN 54 106
Zhang, Jing Jiangsu, CN 966 8974
Zhou, Haiyan Jiangsu, CN 27 210

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