Invention Grant
- Patent Title: Energy efficient and throughput enhancing extractive process for aromatics recovery
- Patent Title (中): 能量效率和通量提高芳烃回收的萃取过程
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Application No.: US12217676Application Date: 2008-07-08
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Publication No.: US07879225B2Publication Date: 2011-02-01
- Inventor: Fu-Ming Lee , Kuang-Yeu Wu , Tsung-Min Chiu , Zong-Ying Chen , Jyh-Haur Hwang , Tzong-Bin Lin , Hung-Chung Shen , Tung-Hsiung Kuo , Yu-Ming Wu
- Applicant: Fu-Ming Lee , Kuang-Yeu Wu , Tsung-Min Chiu , Zong-Ying Chen , Jyh-Haur Hwang , Tzong-Bin Lin , Hung-Chung Shen , Tung-Hsiung Kuo , Yu-Ming Wu
- Applicant Address: TW Taipei US TX Plano
- Assignee: CPC Corporation Taiwan,AMT International, Inc
- Current Assignee: CPC Corporation Taiwan,AMT International, Inc
- Current Assignee Address: TW Taipei US TX Plano
- Agency: Cascio & Zervas
- Main IPC: C10G21/28
- IPC: C10G21/28

Abstract:
An energy efficient, high throughput process for aromatics recovery can be readily implemented by revamping existing sulfolane solvent extraction facilities, or constructing new ones, so as to incorporate unique process operations involving liquid-liquid extraction and extractive distillation. Current industrial sulfolane solvent based liquid-liquid extraction processes employ a liquid-liquid extraction column, an extractive stripping column, a solvent recovery column, a raffinate wash column, and a solvent regenerator. The improved process for aromatic hydrocarbon recovery from a mixture of aromatic and non-aromatic hydrocarbons requires transformation of the extractive stripping column into a modified extractive distillation column. The revamping incorporates the unique advantages of liquid-liquid extraction and extractive distillation into one process to significantly reduce energy consumption and increase process throughput. The revamp entails essentially only piping changes and minor equipment adjustments of the original liquid-liquid extraction facility, and is therefore, reversible.
Public/Granted literature
- US20090255853A1 Novel energy efficient and throughput enhancing extractive process for aromatics recovery Public/Granted day:2009-10-15
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