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Life cycle assessment-based process analysis for fuel-grade bioethanol production using rice straw

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dc.contributor.author Jayasundara, PM
dc.contributor.author Jayasinghe, TK
dc.contributor.author Rathnayake, M
dc.contributor.editor Rathnasiri, PG
dc.date.accessioned 2023-02-21T07:58:50Z
dc.date.available 2023-02-21T07:58:50Z
dc.date.issued 2020-03
dc.identifier.citation **** en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/20583
dc.description.abstract Rice straw is a major biomass residue from rice cultivation, which reaches to a world average of 740 million tonnes/year generation. Open burning of rice straw in paddy fields is the common practice, which could result in an average greenhouse gas emission of 92 kg of CO2 eq/tonne of dry rice straw and other harmful airborne emissions. Existing studies indicate that bioethanol production from rice straw is more environmentally benign, compared to alternative options, such as gasification for combined heat and power generation and dimethyl-ether production. This study analyses the net energy indicators and carbon footprint of fuel-grade bioethanol production processes from rice straw comparing three dehydration techniques: 1. Extractive distillation, 2. Azeotropic distillation, and 3. Pressure swing distillation. Chemical process simulations using the Aspen Plus software were utilized to evaluate the bioethanol production process from rice straw, with a plant output capacity of 222 litres/hr of fuel-grade bioethanol (99.7 vol% ethanol). The results show that the most environmental benign dehydration technique is extractive distillation. The findings from this study can support decision making for future wasteto- biofuel plants using waste rice straw in the world. en_US
dc.language.iso en en_US
dc.publisher Department of Chemical & Process Engineering University of Moratuwa en_US
dc.title Life cycle assessment-based process analysis for fuel-grade bioethanol production using rice straw en_US
dc.type Conference-Extended-Abstract en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Chemical and Process Engineering en_US
dc.identifier.year 2020 en_US
dc.identifier.conference ChemECon 2020 – Solutions Worth Spreading en_US
dc.identifier.place Katubedda en_US
dc.identifier.pgnos pp. 4-5 en_US
dc.identifier.proceeding Proceedings of ChemECon 2020 – Solutions Worth Spreading en_US
dc.identifier.email mratnayake@uom.lk en_US


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