期刊
BIORESOURCE TECHNOLOGY
卷 189, 期 -, 页码 224-235出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.04.020
关键词
Empty fruit bunches (EFB); Bioethanol; Jet fuels; Techno-economic analysis; Economic potential (EP)
资金
- Gendocs in the framework of Cooperative R&D between Industry and Academy
A hierarchical four-level approach to determine economic potential (4-level EP) is proposed for preliminary techno-economic analysis of new processes. The 4-level EP includes input/output structure, process flow structure, heat integration (HI), and economic feasibility. Two case studies on a 30.2 t/d (or 12.7 million l/yr) bioethanol plant with and without jet fuel production from palm empty fruit bunches (EFB) were investigated by applying the 4-level EP. The plant flowsheet was established based on experiments in a 0.1 t/d pilot plant, including sequential dilute acid and alkali pretreatment, and separate hydrolysis and fermentation (SHF). EP approached a more reliable value through the hierarchical 4-level EP. The heating energy was reduced considerably by HI. The product value was estimated at $0.8-$1.3/kg of equivalent bioethanol. It was suggested through sensitivity analysis that a large plant size, enhanced production yields, and capital cost reduction were necessary for the lignocellulosic bioethanol production to be profitable. (C) 2015 Elsevier Ltd. All rights reserved.
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