Green metrics evaluation of isoprene production by microalgae and bacteria
Green metrics evaluation of isoprene production by microalgae and bacteria
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DOI：
10.1039/c3gc40997j
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发表时间：
2013-01-01
期刊：
影响因子：
9.8
通讯作者：
Bogel-Lukasik, Rafal
中科院分区：
文献类型：
--
作者：
Matos, Cristina T.;Gouveia, Luisa;Bogel-Lukasik, Rafal
异戊二烯是生产合成橡胶和粘合剂的关键中间化合物，也被用作化学工业的基本原料。传统上，异戊二烯是在炼油过程中从原油中获得的。然而，植物和动物也能够合成这种重要的化合物。这项工作比较了生产异戊二烯的两种可再生方法：光合生物（自养微藻/蓝藻）和异养生物（细菌）。这是石化基础炼油过程中常规异戊二烯生产的两种替代途径，本研究使用绿色指标对其进行了评估。从材料效率、能源效率、经济评价和土地利用等方面对其性能进行了评价。选择了一个10吨的尺度来对导致异戊二烯的两个生物过程进行绿色指标评估。对于每一种工艺，在考虑文献中报道的最高异戊二烯产量的方案和考虑最大理论化学计量异戊二烯产量的方案之间进行了比较。
Isoprene is a key intermediate compound for the production of synthetic rubber and adhesives and is also used as a building block in the chemical industry. Traditionally, isoprene is obtained from crude oil during the refinery process. Nevertheless, plants and animals are also able to synthesize this important compound. This work compares two renewable approaches for isoprene production: by photosynthetic organisms (autotrophic microalgae/cyanobacteria) and by heterotrophic organisms (bacteria). These are two alternative pathways for the conventional isoprene production obtained from the petrochemical-based refinery process, which were assessed in this work using green metrics. Their performance was evaluated in terms of: material efficiency, energy efficiency, economic evaluation and land use. A 10-tonne scale was chosen to perform the green metrics evaluation for both biological processes leading to isoprene. For each process, a comparison was made between a scenario considering the highest isoprene produced reported in the literature and a scenario considering the maximum theoretical stoichiometric isoprene productivity.