کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4997853 1459919 2017 34 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The type of ion selective membrane determines stability and production levels of microbial electrosynthesis
ترجمه فارسی عنوان
نوع غشای انتخابی یونی تعیین کننده پایداری و میزان تولید الکترو سنتز میکروبی است
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Microbial electrosynthesis (MES) can enable electricity-driven bioproduction from CO2. Several membrane types such as anion exchange, cation exchange, and bipolar membranes (AEM/CEM/BPM) can be used to separate the anodic oxidation from the biocathodic reduction. The impact of the membrane type on MES has not yet been studied. Therefore we compared the three membranes for MES of acetic acid. The reactor with AEM enabled in situ recovery of acetic acid. This extraction led to a 32% higher production rate and efficiency compared to the systems that did not include product recovery, as product inhibition was likely occurring. Besides H+/OH−, mainly HCO3− contributed to charge balancing. Due to water displacement across the membrane, the product concentration in the AEM reactor (9 g/L) did not exceed the concentration in the CEM reactor (10.5 g/L). Overall this comparison shows that the membrane type in MES can be critical towards a stable and efficient process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 224, January 2017, Pages 358-364
نویسندگان
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