From Biomass-rich Residues Into Fuels And
Green Chemicals Via Gasification
And Catalytic Synthesis
Author(s)
S.C. Marie-Rose, E. Chornet, D. Lynch & J.-M. Lavoie
Abstract
Recycling carbon present in residual streams enhances sustainability and creates
local wealth.
Enerkem Inc. is a leading biomass gasification company headquartered in
Montreal, Québec. The approach Enerkem has been developing involves:
identification of low cost residual streams as feedstock, sorting, biotreatment
(anaerobic and/or aerobic) and preparation of an ultimate residue (RDF). The
latter is a rather uniform material that can be fed, as a fluff, to a bubbling bed
gasifier in a staged gasification to carry out, sequentially, the needed chemical
reactions that result in high syngas yields. Process can be adjusted to reach
desired gas composition for synthesis or electricity generation as well as gas
conditioning to produce an ultraclean syngas. Products for such a process are:
i) syngas with an appropriate range of H2/CO ratios,
ii) CO2 (which is recovered),
iii) solid char as a residue composed of the inorganic fraction of the raw material
and some unconverted carbon that \“coats” the inorganic matrices, and
iv) water that needs to be treated to meet the sewage specifications and thus be
sent into the water distribution system of a given municipality.
Enerkem is developing two parallel valorisation routes; a) heat and power and
b) synthesis of (bio)methanol as a high yield product. The methanol is the
platform intermediate that can be turned into ethanol (also with high yields), and
other green chemicals. Yields of ethanol as the end product are above 350
Keywords
alcohols synthesis, syngas production, methanol, ethanol, heterogeneous catalysis, gasification
Related Book
Other papers in this volume
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