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CO2 emission balances for different black liquor gasification biorefinery concepts for production of electricity or second-generation liquid biofuels by Karin Pettersson; Simon Harvey is a Engineering article available to read on EtoBox.

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Black liquor gasification (BLG) is currently being developed as an alternative technology for energy and chemical recovery at chemical pulp mills. This study examines how different assumptions regarding systems surrounding the pulp mill affect the CO 2 emission balances for different BLG concepts. The syngas from the gasification process can be used for different applications; this study considers production of renewable motor fuels and electricity generation. Both a market pulp mill and an integrated pulp and paper mill are considered as host mill for the BLG plant. Furthermore, the consequences of limited availability of biomass are shown, i.e., increasing the use of biomass in a mill is not necessarily CO 2 -neutral. The results show that the potential to reduce CO 2 emissions by introducing BLG is generally much higher for a market pulp mill than for an integrated pulp and paper mill. Electricity generation from the syngas is favoured when assuming high grid electricity CO 2 emissions where as motor fuel production is favoured when assuming low grid electricity CO 2 emissions. When considering the consequences of limited availability of biomass, the CO 2 emission balances are s

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Author

Karin Pettersson; Simon Harvey

Publisher

Elsevier Science; Thomas Telford; Elsevier ; Thomas Telford Ltd.; Elsevier Ltd.; ICE Publishing Ltd.; Elsevier BV (ISSN 1751-4223)

Published

2010

Language

EN

Field

Engineering (Physical Sciences)