ZERO-DIMENSIONAL MODEL OF A DIMETHYL ETHER (DME) PLANT BASED ON GASIFICATION OF TORREFIED BIOMASS

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2009

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A model of a DME fuel production plant was designed and analyzed in Aspen Plus. The plant produces DME by catalytic conversion of a syngas generated by gasification of torrefied woody biomass. Torrefication is a mild pyrolysis process that takes place at 200-300°C. Torrefied biomass has properties similar to coal, which enables the use of commercially available coal gasification processing equipment. The DME plant model is integrated with a steam cycle that utilizes waste heat from the plant and covers the on-site electricity consumption. The plant model predicts a fuel production efficiency of 67 % (LHV) from torrefied biomass to DME and 70 % (LHV) if the exported electricity is included. When accounting for raw, untreated biomass, the efficiency for DME production is reduced to about 60 %.
Original languageEnglish
Title of host publicationProceedings of SIMS 50 : Modeling of Energy Technology
Publication date2009
Pages229-235
ISBN (print)978-87-89502-88-5
StatePublished

Conference

Conference50th International Conference of Scandinavian Simulation Society
Number50
CountryDenmark
CityFredericia
Period07/10/0908/10/09

Keywords

  • syngas, DME, CO2 capture, dimethyl ether, biorefinery, biofuel, torrefication, gasification
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