https://scholars.lib.ntu.edu.tw/handle/123456789/631272
標題: | Development of energy-optimum aromatic extraction processes using ionic liquid [EMIM][NTf2] | 作者: | McNeeley, Adam Tsai, Chang Che SHIANG-TAI LIN Liu, Y. A. |
關鍵字: | aromatic extraction | ionic liquids | novel separations | process integration | process optimization | 公開日期: | 1-二月-2023 | 出版社: | WILEY | 卷: | 69 | 期: | 2 | 來源出版物: | AIChE Journal | 摘要: | There is industrial incentive to extract aromatics from ethylene cracker feeds, but the conventional sulfolane solvent was found not economical by Meindersma and coworkers. Ionic liquids (ILs) have long been considered alternative aromatic extraction solvents. This work develops energy-optimum aromatic extraction processes for an ethylene cracker feed using IL solvents. We avoid pitfalls of using simplified feeds and a priori thermodynamic property estimates, with the largest set of experimentally regressed UNIQUAC binary parameters for the IL, 1-ethyl-3-methylimidazolium bis([trifluoromethyl]sulfonyl)imide ([EMIM][NTf2]). We screen process energy and operating conditions for [EMIM][NTf2] and sulfolane at varying aromatic feed contents and find [EMIM][NTf2] favorable at low aromatic feed contents. Adding light and heavy components of the ethylene cracker feed necessitates process modifications. Our novel steam-assisted extractive distillation developed for [EMIM][NTf2] is also suitable for sulfolane. We show that the [EMIM][NTf2] solvent can reduce 10.7% of energy consumption compared to sulfolane using the same novel process. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/631272 | ISSN: | 00011541 | DOI: | 10.1002/aic.17888 |
顯示於: | 化學工程學系 |
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