Second generation ethanol in Brazil: Can it compete with electricity production?
Second generation ethanol in Brazil: Can it compete with electricity production?
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DOI：
10.1016/j.biortech.2011.06.098
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发表时间：
2011-10-01
影响因子：
11.4
通讯作者：
Bonomi, Antonio
中科院分区：
文献类型：
--
作者：
Dias, Marina O. S.;Cunha, Marcelo P.;Bonomi, Antonio
围绕第二代乙醇生产的大部分争议来自与第一代乙醇生产的假定竞争：然而，在从甘蔗生产生物乙醇的巴西，甘蔗渣和垃圾将被用作第二代乙醇生产的原料。因此，第二代乙醇生产可能主要是与从甘蔗木质纤维素组分生产电力的竞争。对巴西甘蔗联合生产第一代和第二代乙醇进行了初步的技术经济分析，并对不同的技术方案进行了评价。分析表明了综合利用甘蔗的重要性，包括可从地里带走的剩馀蔗渣和垃圾所代表的生物量。当使用甘蔗废料，当低成本的酶和改进的技术可以商业化时，第二代乙醇可能会与生物电力生产形成有利的竞争。(C)2011爱思唯尔有限公司。保留所有权利。
Much of the controversy surrounding second generation ethanol production arises from the assumed competition with first generation ethanol production: however, in Brazil, where bioethanol is produced from sugarcane, sugarcane bagasse and trash will be used as feedstock for second generation ethanol production. Thus, second generation ethanol production may be primarily in competition with electricity production from the lignocellulosic fraction of sugarcane. A preliminary technical and economic analysis of the integrated production of first and second generation ethanol from sugarcane in Brazil is presented and different technological scenarios are evaluated. The analysis showed the importance of the integrated use of sugarcane including the biomass represented by surplus bagasse and trash that can be taken from the field. Second generation ethanol may favorably compete with bioelectricity production when sugarcane trash is used and when low cost enzyme and improved technologies become commercially available. (C) 2011 Elsevier Ltd. All rights reserved.