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Synthesis of Bio-Dimethyl Ether Based on Carbon Dioxide-Enhanced Gasification of Biomass: Process Simulation Using Aspen Plus
Parvez, A.M. Hall, P. Lester, E.H. Wu, T.
Parvez, A.M.
Hall, P.
Lester, E.H.
Wu, T.
Publication Date
2016-04
End of Embargo
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Rights
© 2016 Wiley-VCH Verlag GmbH & Co, KGaA, Weinheim. Full-text
reproduced in accordance with the publisher’s self-archiving policy.
Peer-Reviewed
Yes
Open Access status
openAccess
Accepted for publication
2015-10-29
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Department
Awarded
Embargo end date
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Abstract
Process simulation of a single-step synthesis of DME based on CO2-enhanced gasification of rice straw was conducted using Aspen PlusTM. The process consists of gasification unit, heat recovery unit, gas purification unit, single-step DME synthesis, and DME separation unit. In the simulation, highly pure DME was produced by the control of CO2 concentration in syngas to a very low level prior to synthesis. A gasification system efficiency of 36.7% and CO2 emission of 1.31 kg/kg of DME were achieved. Bio-DME production based on CO2-enhanced gasification of biomass was found to be more cost-effective as it required 19.6% less biomass than that of DME production based on conventional biomass gasification. The performance and environmental benefits of the proposed process could be further improved by the utilization of unreacted gases and the handling of CO2 generated via incorporating poly-generation concept or carbon storage, which could also potentially improve process economics.
Version
Accepted manuscript
Citation
Parvez AM, Mujtaba IM, Hall P et al (2016) Synthesis of Bio-Dimethyl Ether Based on Carbon Dioxide-Enhanced Gasification of Biomass: Process Simulation Using Aspen Plus. Energy Technology. 4(4): 526-535.
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Article