Bioethanol from corn stover – Integrated environmental impacts of alternative biotechnologies
Bioethanol from corn stover – Integrated environmental impacts of alternative biotechnologies
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来自玉米秸秆的生物乙醇 — 替代生物技术的综合环境影响
DOI：
10.1016/j.resconrec.2019.104652
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发表时间：
2020-04
期刊：
影响因子：
--
通讯作者：
Thomas H. Christensen
中科院分区：
文献类型：
--
作者：
Yan Zhao;Anders Damgaard;Shan Liu;Huimin Chang;Thomas H. Christensen
利用文献报道的数据集，通过生命周期评估系统地评估了玉米秸秆生产生物乙醇的环境影响潜力。15%的最佳数据集相对于全球变暖的潜力为7种不同的技术配置，从已公布的数据库中提取，审查474篇关于将玉米秸秆转化为生物乙醇的出版物。共评估了10个影响类别。这些影响包括环境负荷和节约，一般而言，对于大多数无毒影响而言，每吨干玉米秸秆造成的影响为-0.1至0.1人当量，对于有毒影响而言，为-0.2至0.5人当量。用生物乙醇替代化石燃料在大多数影响类别中提供了节省，从残留物中回收的能量也是如此，而酶的生产是一个重要的负荷。来自液体残余物的流出物的处理和排放可构成对环境的显著负荷。根据总体环境绩效的累积概率以及生产的生物乙醇量，进一步开发的技术的优先顺序应如下：蒸汽爆破（S4）和氨基（S6）技术作为最高优先级，分别约有100%和40%的概率节省无毒和有毒影响;酸（S1）、碱（S2）和真菌（S7）技术为中等优先，溶剂型（S3）和液体热水（S5）技术为最低优先。我们建议将生命周期评估模型与从生物质废物生产生物燃料的研究和开发相结合，以确保为全面应用而开发的技术是可持续的。
The environmental impact potentials of producing bioethanol from corn stover were systematically assessed by life cycle assessment using datasets reported in the literature. The 15% best datasets with respect to global warming potential for seven different technological configurations were extracted from a published database reviewing 474 publications on converting corn stover to bioethanol. A total of 10 impact categories were evaluated. The impacts included both environmental loads and savings, and generally ranged from −0.1 to 0.1 person-equivalent per ton of dry corn stover for most non-toxic impacts and −0.2 to 0.5 person-equivalent for toxic impacts. Fossil fuel substitution with bioethanol provided savings in most impact categories, and so did the energy recovered from the residues, while enzyme production was a significant load. The treatment and discharge of effluent from the liquid residues may constitute a significant load to the environment. Based on the cumulative probabilities of overall environmental performance together with the bioethanol amount produced, the prioritisation of technologies for further development should be as follows: steam explosion (S4) and ammonia-based (S6) technologies as the highest priorities with approximately 100% and 40% probabilities to have savings in non-toxic and toxic impacts, respectively; acid (S1), alkaline (S2) and fungi (S7) technologies as medium priorities and solvent-based (S3) and liquid hot water (S5) technologies have the lowest priorities. We suggest the integration of life cycle assessment modelling to the research and development of biofuel production from biomass waste to ensure that the technologies being developed for full-scale applications are sustainable.
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影响因子：
2.8
作者：
Kyung A Jung;Seong-Rin Lim;Yoori Kim;Jong Moon Park
通讯作者：
Kyung A Jung;Seong-Rin Lim;Yoori Kim;Jong Moon Park
影响因子：
11.1
作者：
A. Zucaro;Annachiara Forte;A. Fierro
通讯作者：
A. Zucaro;Annachiara Forte;A. Fierro
影响因子：
11.1
作者：
M. Rathnayake;Thanapat Chaireongsirikul;A. Svang-ariyaskul;L. Lawtrakul;P. Toochinda
通讯作者：
M. Rathnayake;Thanapat Chaireongsirikul;A. Svang-ariyaskul;L. Lawtrakul;P. Toochinda
影响因子：
11.4
作者：
S. Spatari;D. Bagley;H. MacLean
通讯作者：
S. Spatari;D. Bagley;H. MacLean
通过直接和间接热化学转化过程从玉米秸秆合成乙醇的比较生命周期评估
影响因子：
5.3
作者：
Zhu, Lingjun;Guo, Wenwen;Yin, Shi;Wang, Shurong
通讯作者：
Wang, Shurong