Production of methanol from a mixture of torrefied biomass and coal

This paper investigated the influence of adding torrefied biomass within an entrained flow coal gasifier for the production of methanol. Computer simulations of gasifying a mixture of torrefied biomass and coal within an entrained flow gasifier, synthesis gas purification, and methanol synthesis wer...

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Bibliographic Details
Published in:Energy (Oxford) 2014-12, Vol.77, p.125-132
Main Authors: Trop, P., Anicic, B., Goricanec, D.
Format: Article
Language:English
Subjects:
Gasification
Methanol production
Torrefied biomass
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Summary:This paper investigated the influence of adding torrefied biomass within an entrained flow coal gasifier for the production of methanol. Computer simulations of gasifying a mixture of torrefied biomass and coal within an entrained flow gasifier, synthesis gas purification, and methanol synthesis were carried out using the Aspen plus program package. In addition, economic analyses are presented based on the net present value. It was shown that, based on the predictions for future prices of the raw materials and methanol, usage of a mixture of biomass and coal within entrained flow gasifiers would be feasible and could become economically even better than the usage of coal only. The net emissions of CO2 would also be significantly lowered. •We modelled the gasification of torrefied biomass and coal mixture.•Torrefied biomass is a good replacement for coal during the gasification process.•Economic feasibility of torrefied biomass outperforming coal in the future.•Carbon tax will be the main motivator for greater biomass exploitation.•Mixed torrefied biomass and coal gasification is a promising technology.
ISSN:0360-5442
DOI:10.1016/j.energy.2014.05.045