Novel processes for the production of acetone-butanol-ethanol (ABE) from municipal solid waste (MSW) were developed and simulated using Aspen Plus®. In scenario 1, a conventional distillation system was used, while a gas stripping system was coupled with a fermenter in scenario 2. In scenario 3, pervaporation (PV) and gas stripping systems right after the fermentation reactor were applied. Gas stripping increased the total ABE produced while the addition of the PV module decreased the number of distillation columns from 6 to 2 as well as created 6.4% increments in the amount of butanol in comparison with scenario 1. Economical evaluation resulted in having payout periods of 15.9, 4.4, and 2.9 years for scenarios 1 to 3, respectively. These results show that using MSW as an inexpensive sugar-rich feedstock together with gas stripping PV system is a promising solution to overcome the major obstacles in the way of the ABE production.

中文翻译：

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从城市固体废物中生产生物丁醇：技术和经济分析。

利用AspenPlus®开发并模拟了从城市固体废物（MSW）生产丙酮-丁醇-乙醇（ABE）的新工艺。在方案1中，使用常规蒸馏系统，而在方案2中，将气提系统与发酵罐耦合。在方案3中，在发酵反应器之后立即使用全蒸发（PV）和气提系统。与方案1相比，气提提高了生产的总ABE的数量，而添加PV模块则将蒸馏塔的数量从6个减少到2个，丁醇的用量增加了6.4％。经济评估结果表明回收期为场景1到3分别为15.9、4.4和2.9年。