发明名称 |
Methods for regeneration of solvents for extractive processes |
摘要 |
An improved solvent regeneration system for extractive distillation and liquid-liquid extraction processes capable of effectively removing heavy hydrocarbons and polymeric materials that otherwise develop in a closed solvent loop. The improved process employs a light hydrocarbon displacement agent, which is at least partially soluble in the solvent to squeeze the heavy hydrocarbons and polymeric materials out of the solvent, with virtually no additional energy requirement. It has been demonstrated that the light non-aromatic hydrocarbons in the raffinate stream generated from the extractive distillation or the liquid-liquid extractive process for aromatic hydrocarbons recovery can displace not only the heavy non-aromatic hydrocarbons but also the heavy aromatic hydrocarbons from the extractive solvent, especially when the aromatic hydrocarbons in the solvent are in the C10+ molecular weight range.
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申请公布号 |
US8246815(B2) |
申请公布日期 |
2012.08.21 |
申请号 |
US20100854150 |
申请日期 |
2010.08.10 |
申请人 |
WU KUANG-YEU;LIN TZONG-BIN;LEE FU-MING;CHIU TSUNG-MIN;HWANG JYH-HAUR;SHEN HUNG-CHUNG;AMT INTERNATIONAL INC.;CPC CORPORATION, TAIWAN |
发明人 |
WU KUANG-YEU;LIN TZONG-BIN;LEE FU-MING;CHIU TSUNG-MIN;HWANG JYH-HAUR;SHEN HUNG-CHUNG |
分类号 |
C10G51/02 |
主分类号 |
C10G51/02 |
代理机构 |
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代理人 |
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地址 |
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