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Gasification Integrated with Small Chemical Pulp Mills for Fuel and Energy Production
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.ORCID-id: 0000-0002-4359-2232
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.ORCID-id: 0000-0002-7233-6916
King Abdulaziz University, Saudi Arabia.
State Environ. Protect. Key Lab. of Environmental Risk Assessment and Control on Chemical Process, ECUST, China.
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2017 (engelsk)Inngår i: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 142, s. 977-983Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Pulp mills without black liquor recovery cycle could play a major role in employing black liquor gasification (BLG) to produce transport fuels. In conventional chemical pulp mills, black liquor is burnt in recovery boilers to generate steam and electricity to meet energy demands. The inorganic chemicals are reused for the digestion process. However, the energy content and inorganic chemicals are not recovered in small scale pulp mills especially in the developing countries which do not employ recovery cycle. This study investigates the potential of synthetic natural gas (SNG) production by integrating BLG island with a reference pulp mill without chemical recovery cycle. The improvements in overall energy efficiency are evaluated using performance indicators such as biofuel production potential, integrated system’s efficiency, and energy ratios. The oxygen-blown circulating fluidized bed (CFB) gasification with direct causticization is integrated with reference pulp mill. The results showed considerable SNG production without external biomass import. However to compensate total electricity deficit, the electricity will be imported from the grid. There is a substantial CO2 abatement potential of combining CO2 capture using seloxol absorption, and CO2 mitigation from SNG by replacing gasoline. 

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Elsevier Ltd , 2017. Vol. 142, s. 977-983
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URN: urn:nbn:se:mdh:diva-38732DOI: 10.1016/j.egypro.2017.12.156ISI: 000452901601022Scopus ID: 2-s2.0-85041531372OAI: oai:DiVA.org:mdh-38732DiVA, id: diva2:1186435
Tilgjengelig fra: 2018-02-28 Laget: 2018-02-28 Sist oppdatert: 2019-01-03bibliografisk kontrollert

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