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
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Oct 22, 2024
Grant Date -
Jul 18, 2024
app pub date -
Jul 27, 2022
filing date -
Sep 28, 2021
priority date (Note) -
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Abstract
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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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
CHANGZHOU RUIHUA CHEMICAL ENGINEERING TECHNOLOGY CO LTD | ROOM 1718 NO 398-1 TONGJIANG MIDDLE ROAD XINBEI DISTRICT CHANGZHOU JIANGSU 213022 213022 |
International Classification(s)
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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