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Biogas Plant Upgrade to CO2‐Free Technology: A Techno‐Economic Case Study
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-07-09 , DOI: 10.1002/ceat.202000134 Andrey Kutsay 1 , Lukas Kratky 1 , Tomas Jirout 1
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-07-09 , DOI: 10.1002/ceat.202000134 Andrey Kutsay 1 , Lukas Kratky 1 , Tomas Jirout 1
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A techno‐economic analysis was performed for a biogas plant with in‐built algae production. Degradation in the fermenter occurs under mesophilic conditions, to produce 605 Nm3t−1TS of biogas and 343 Nm3t−1TS of methane after 50 days. The biogas was combusted in a combined heat‐and‐power unit to produce heat and electricity. Cultivation of Chlorella vulgaris was done in co‐annular photo‐bioreactors, with an annual productivity of 107.5 t. For cultivation, both autotrophic and mixotrophic growth were assumed. Detailed mass and energy balances were done. For both conditions of algae growth, the results are approximately the same after a 30‐year payback period.
中文翻译：
沼气厂升级为无二氧化碳技术：技术经济案例研究
对具有内置藻类生产的沼气厂进行了技术经济分析。发酵罐在中温条件下发生降解，在50天后产生605 Nm 3 t -1 TS的沼气和343 Nm 3 t -1 TS的甲烷。沼气在热电联产装置中燃烧以产生热量和电能。普通小球藻的培养是在同环型光生物反应器中进行的，年生产力为107.5吨。为了培养，假定自养和混养生长。完成了详细的质量和能量平衡。对于两种藻类生长条件，在30年的投资回收期后，结果大致相同。
更新日期：2020-07-09
中文翻译：
沼气厂升级为无二氧化碳技术：技术经济案例研究
对具有内置藻类生产的沼气厂进行了技术经济分析。发酵罐在中温条件下发生降解，在50天后产生605 Nm 3 t -1 TS的沼气和343 Nm 3 t -1 TS的甲烷。沼气在热电联产装置中燃烧以产生热量和电能。普通小球藻的培养是在同环型光生物反应器中进行的，年生产力为107.5吨。为了培养，假定自养和混养生长。完成了详细的质量和能量平衡。对于两种藻类生长条件，在30年的投资回收期后，结果大致相同。
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