Bio-methane upgrading of pyrolysis gas from charcoal production
2013 (English)In: Energy Conversion and Management, ISSN 0196-8904, E-ISSN 1879-2227, Vol. 3, 66-73 p.Article in journal (Refereed) Published
This article presents a novel route for bio-methane synthesis utilizing pyrolysis gas from charcoal production. It is a retrofit option that may increase overall process efficiency in charcoal production while adding a valuable product. The pyrolysis gas from charcoal production can be used for bio-methane production instead of burning, while the required heat for the charcoal production is supplied by additional biomass. The aim is to evaluate the energy efficiency of bio-methane upgrading from two types of charcoal plants, with and without recovery of liquid by-products (bio-oil). Aspen simulations and calculations of the energy and mass balances are used to analyse the system. The yield of bio-methane compared to the import of additional biomass is estimated to be 81% and 85% (biomass to bio-methane yield) for the syngas case and the pyrolysis vapour case, respectively. When the biomass necessary to produce the needed electricity (assuming ηel = 33%) is included, the yields amount to 65% and 73%. The results show that the suggested process is a competitive production route for methane from lignocellulosic biomass.
Place, publisher, year, edition, pages
2013. Vol. 3, 66-73 p.
Bio-methane, Biomass, Charcoal, Pyrolysis, SNG
Energy Engineering Chemical Process Engineering
IdentifiersURN: urn:nbn:se:kth:diva-105563DOI: 10.1016/j.seta.2013.07.001ScopusID: 2-s2.0-84882580667OAI: oai:DiVA.org:kth-105563DiVA: diva2:571464
Updated from "Submitted" to "Published" QC 201402182012-11-222012-11-222015-09-29Bibliographically approved