کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
18169 42713 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Clostridium aceticum—A potential organism in catalyzing carbon monoxide to acetic acid: Application of response surface methodology
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Clostridium aceticum—A potential organism in catalyzing carbon monoxide to acetic acid: Application of response surface methodology
چکیده انگلیسی

Carbon monoxide is a poisonous gas that results from the automobile emission, gasification of biomass and sewage sludge. The conversion of carbon monoxide as the gaseous substrate to acetic acid by Clostridium aceticum is an alternative usage route to curb the CO problem at relatively low cost. Mixed levels of full factorial design have been conducted to study the effects of CO partial pressure ranging from 1.40 to 2.02 atm and the fermentation time (0–120 h) over the cell density, CO residue and acetic acid concentration in the batch system. The applied mixed gas composition were 4% H2: 18% Argon: 78% CO. The response surface plot computed from experimental design was employed to optimize the process operating conditions for maximum cell density, minimum CO residue and maximum acetic acid productivity. The results from the surface plot shows that acetic acid fermentation is best operated at 1.40 atm CO partial pressure and at 48 h fermentation times in order to achieve process optimization.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Enzyme and Microbial Technology - Volume 40, Issue 5, 3 April 2007, Pages 1234–1243
نویسندگان
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