Abstract
AbstractProcess simulation for a single‐step synthesis of dimethyl ether (DME) based on the CO2‐enhanced gasification of rice straw was conducted using Aspen Plus. The process consists of a gasification unit, a heat recovery unit, a gas purification unit, a single‐step DME synthesis unit, and a 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 kgDME−1 were achieved. This bio‐DME production based on the CO2‐enhanced gasification of biomass was 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 managing of CO2 generated by the incorporation of a polygeneration concept or carbon storage.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
