Abstract The present paper evaluates the feasibility of a process flowsheet for butanol bioproduction, as pure compound or as a blend with the biodiesel used as the liquid-liquid extraction (LLEx) solvent. In order to evidence this aspect, a modeling and simulation study was performed using Aspen Hysys commercial simulator. Process simulation results evidenced specific (per ton of butanol separated) power consumption of 22.5 kW/t and hot and cold utility specific consumptions were in power equivalences of 3.4 MW and 2.6 MW respectively. In order to achieve a feasible extraction process of biobutanol from the fermentative broth, a specific quantity of 1.125 t/t biodiesel (recovered as a blend) was required.

中文翻译：

---

生物柴油提取法去除发酵液中丁醇的工艺建模与仿真

摘要 本文评估了丁醇生物生产工艺流程的可行性，作为纯化合物或与用作液-液萃取 (LLEx) 溶剂的生物柴油的混合物。为了证明这一方面，使用 Aspen Hysys 商业模拟器进行了建模和模拟研究。过程模拟结果表明，特定（每吨分离的丁醇）功率消耗为 22.5 kW/t，冷热公用事业特定消耗分别为 3.4 MW 和 2.6 MW。为了实现从发酵液中提取生物丁醇的可行工艺，需要特定数量的 1.125 t/t 生物柴油（作为混合物回收）。