渗透汽化
发酵
蒸馏
乙醇
乙醇燃料
乙醇发酵
生物燃料
化学
过程(计算)
膜
制浆造纸工业
废物管理
色谱法
有机化学
生物化学
工程类
计算机科学
渗透
操作系统
作者
Dennis J. O’Brien,Lorie Roth,Andrew J. McAloon
标识
DOI:10.1016/s0376-7388(99)00255-0
摘要
Pervaporation can be utilized for recovery of ethanol from fermentation broths, thus suggesting a continuous fermentation process for fuel ethanol production. Based upon previously established laboratory performance data for pervaporation, a flux of 0.15 kg/m2/h and a selectivity of 10.3, process equipment was designed, sized, and costs estimated for the fermentation, pervaporation, distillation, and dehydration sections of a commercial-scale fuel ethanol plant. These costs were compared to those of a typical dry milling ethanol facility. For a baseline membrane cost of $200 m2, costs for the fermentation–pervaporation process were slightly higher. Sensitivity analyses on the pervaporation performance parameters indicated that with only minor improvement in either flux or selectivity, a process employing pervaporation for ethanol recovery from fermentation broths could be cost-effective.
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