Experimental Investigation, Techno-Economic Analysis and Environmental Impact of Bioethanol Production from Banana Stem
Experimental Investigation, Techno-Economic Analysis and Environmental Impact of Bioethanol Production from Banana Stem
复制标题
香蕉茎生产生物乙醇的实验研究、技术经济分析及环境影响
DOI：
10.3390/en12203947
复制
发表时间：
2019
期刊：
影响因子：
3.2
通讯作者：
A. Silitonga
中科院分区：
文献类型：
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作者：
Nazia Hossain;A. Razali;T. Mahlia;T. Chowdhury;H. Chowdhury;Hwai Chyuan Ong;A. Shamsuddin;A. Silitonga
香蕉茎被认为是马来西亚第二大废弃生物质。因此，管理大量生物质以及将原料转化为增值产品的环境挑战刺激了对作为现实方法实施的多样化应用的需求。本研究以香蕉茎为原料，通过水解和添加酿酒酵母（Saccharomycescerevisiae）发酵的方法制备生物乙醇。沿着实验分析，一个现实的中试规模的应用，从生物乙醇发电已经设计了HOMER软件，以证明技术经济和环境影响。在硫酸水解和酶解过程中，葡萄糖的最高产量分别为5.614和40.61 g/L。在发酵过程中，葡萄糖产量在12 h时最高，为62.23 g/L，在72 h时最低，为0.69 g/L。随后，通过蒸馏过程回收99.8%纯的生物乙醇。工厂建模模拟运行成本65，980美元/年，净生产成本869347美元和电力成本0.392美元/千瓦时。生物乙醇的CO2排放量为97，161 kg/y，SO2排放量为513 kg/y，远低于柴油排放量。从香蕉茎的生物乙醇生产和发电的应用整体提出了经济上有利的和环境友好的方法。
Banana stem is being considered as the second largest waste biomass in Malaysia. Therefore, the environmental challenge of managing this huge amount of biomass as well as converting the feedstock into value-added products has spurred the demand for diversified applications to be implemented as a realistic approach. In this study, banana stem waste was experimented for bioethanol generation via hydrolysis and fermentation methods with the presence of Saccharomyces cerevisiae (yeast) subsequently. Along with the experimental analysis, a realistic pilot scale application of electricity generation from the bioethanol has been designed by HOMER software to demonstrate techno-economic and environmental impact. During sulfuric acid and enzymatic hydrolysis, the highest glucose yield was 5.614 and 40.61 g/L, respectively. During fermentation, the maximum and minimum glucose yield was 62.23 g/L at 12 h and 0.69 g/L at 72 h, respectively. Subsequently, 99.8% pure bioethanol was recovered by a distillation process. Plant modeling simulated operating costs 65,980 US$/y, net production cost 869347 US$ and electricity cost 0.392 US$/kWh. The CO2 emission from bioethanol was 97,161 kg/y and SO2 emission was 513 kg/y which is much lower than diesel emission. The overall bioethanol production from banana stem and application of electricity generation presented the approach economically favorable and environmentally benign.
用于生物乙醇生产的木质纤维素转化酶和微生物工具
DOI：
--
发表时间：
2013
期刊：
影响因子：
--
作者：
吉岡 康一;高田 理江;渡辺 隆司;Takashi Watanabe;Takashi Watanabe
通讯作者：
Takashi Watanabe