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摘要
针对生物燃料乙醇生产过程，提出精馏-分子筛膜耦合工艺（膜工艺）进行脱水，并与精馏-分子筛变压吸附工艺进行了比较，结果表明，采用膜工艺可节约蒸汽0.3 t/t。以年产20万t生物燃料乙醇项目为例，分析了膜通量、膜单价和蒸汽价格对膜工艺综合运行成本的影响，为膜工艺在生物燃料乙醇生产过程中的应用提供了指导。
Abstract
In the light of bio-based fuel ethanol production process,a distillation-zeolite membrane coupling dehydration process (membrane process) is proposed and compared with traditional distillation-pressure swing adsorption (PSA) process.It is shown that the membrane process can save 0.3 tons steam per ton ethanol product.Taking a 200 000 t/a ethanol production plant as an example,the influences of membrane flux,membrane price and steam price on economic feasibility are investigated,which supplies a promising application of the membrane process on bio-based fuel ethanol production.
关键词
生物燃料乙醇
/
吸附
/
精馏
/
经济性
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脱水
/
分子筛膜
Key words
bio-based fuel ethanol
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adsorption
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distillation
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economic feasibility
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dehydration
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zeolite membrane
透水型分子筛膜在生物燃料乙醇生产中应用的经济性分析[J].
现代化工, 2019, 39(9): 192-194 DOI:10.16606/j.cnki.issn 0253-4320.2019.09.041
