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Comparison of black liquor gasification with other pulping biorefinery concepts – Systems analysis of economic performance and CO2 emissions

Författare och institution:
Karin Pettersson (Institutionen för energi och miljö, Värmeteknik och maskinlära); Simon Harvey (Institutionen för energi och miljö, Värmeteknik och maskinlära)
Publicerad i:
Energy, 37 ( 1 ) s. 136-153
ISSN:
0360-5442
Publikationstyp:
Artikel, refereegranskad vetenskaplig
Publiceringsår:
2012
Språk:
engelska
Fulltextlänk:
Sammanfattning (abstract):
Blackliquorgasification (BLG) is being developed as an alternative technology for energy and chemical recovery in kraft pulp mills. This study compares BLG – with downstream production of DME (dimethyl ether) or electricity – with recovery boiler-based pulping biorefinery concepts for different types of mills. The comparison is based on profitability as well as CO2 emissions, using different future energy market scenarios. The possibility for carbon capture and storage (CCS) is considered. The results show that, if commercialised, BLG with DME production could be profitable for both market pulp mills and integrated pulp and paper mills in all energy market scenarios considered. Recovery boiler-based biorefinery concepts including extraction of lignin or solid biomass gasification with DME production could also be profitable for market and integrated mills, respectively. If the mill is located close to an infrastructure for CO2 collection and transportation, CCS significantly improves profitability in scenarios with a high CO2 emissions charge, for both combustion- and gasification-based systems. Concepts that include CCS generally show a large potential for reduction of global CO2 emissions. Few of the concepts without CCS achieve a significant reduction of CO2 emissions, especially for integrated mills.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
TEKNIK OCH TEKNOLOGIER ->
Kemiteknik
Nyckelord:
Biorefinery; Blackliquorgasification; CCS; Energy market scenarios; CO2 emissions; Kraft pulp and paper mill
Chalmers styrkeområden:
Energi
Chalmers drivkrafter:
Hållbar utveckling
Postens nummer:
151916
Posten skapad:
2012-01-09 14:21
Posten ändrad:
2012-04-10 10:28

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