Integration potential, resource efficiency and cost of forest-fuel-based biorefineries
Integration potential, resource efficiency and cost of forest-fuel-based biorefineries
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以森林燃料为基础的生物精炼厂的整合潜力、资源效率和成本
DOI：
10.1016/j.compchemeng.2015.07.011
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
P. Börjesson
中科院分区：
文献类型：
--
作者：
Elisabeth Joelsson;Ola Wallberg;P. Börjesson
通过评估技术经济因素、系统集成和原料供应，对使用林业残留物作为原料的生物精炼厂的实施潜力进行了多学科研究。该工艺基于伐木残渣的生化转化，生产乙醇、沼气、颗粒、热能和电力。 Aspen Plus 根据可用原料和所需副产品设计了九个模型。重点是颗粒和热量的产品比例。计算了工厂的净现值，并研究了具有区域原料可用性的地区与区域供热系统的热集成。还研究了与瑞典的纸浆和造纸厂合用，以颗粒替代化石燃料。假设 11% 的贴现率和 30% 的公司税，九个模型中有七个显示出正的净现值。瑞典的五个县被确定为每年加工 200 吨干原料的生物精炼厂的潜在原料供应商。
A multidisciplinary study of the implementation potential of a biorefinery, using forestry residues as feedstock, is performed by assessing techno-economic factors, system integration and feedstock supply. The process is based on biochemical conversion of logging residues to produce ethanol, biogas, pellets, heat and electricity. Nine models were designed in Aspen Plus based on the available feedstock and the required co-products. Focus was on the product ratio of pellets and heat. The net present value of the plants was calculated and thermal integration with district-heating systems in areas with regional feedstock availability was investigated. Also co-location with pulp and paper mills in Sweden was investigated to replace fossil fuels with pellets. Seven of the nine models showed a positive net present value assuming an 11% discount rate and 30% corporate tax. Five counties in Sweden were identified as potential feedstock suppliers to a biorefinery processing 200 kt dry feedstock/y.