Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Biomass-based carbon capture and utilization in kraft pulp mills
Abstract Corporate image, European Emission Trading System and Environmental Regulations, encourage pulp industry to reduce carbon dioxide ($ CO_{2} $) emissions. Kraft pulp mills produce $ CO_{2} $ mainly in combustion processes. The largest sources are the recovery boiler, the biomass boiler, and the lime kiln. Due to utilizing mostly biomass-based fuels, the $ CO_{2} $ is largely biogenic. Capture and storage of $ CO_{2} $ (CCS) could offer pulp and paper industry the possibility to act as site for negative $ CO_{2} $ emissions. In addition, captured biogenic $ CO_{2} $ can be used as a raw material for bioproducts. Possibilities for $ CO_{2} $ utilization include tall oil manufacturing, lignin extraction, and production of precipitated calcium carbonate (PCC), depending on local conditions and mill-specific details. In this study, total biomass-based $ CO_{2} $ capture and storage potential (BECCS) and potential to implement capture and utilization of biomass-based $ CO_{2} $ (BECCU) in kraft pulp mills were estimated by analyzing the impacts of the processes on the operation of two modern reference mills, a Nordic softwood kraft pulp mill with integrated paper production and a Southern eucalyptus kraft pulp mill. $ CO_{2} $ capture is energy-intensive, and thus the effects on the energy balances of the mills were estimated. When papermaking is integrated in the mill operations, energy adequacy can be a limiting factor for carbon capture implementation. Global carbon capture potential was estimated based on pulp production data. Kraft pulp mills have notable $ CO_{2} $ capture potential, while the on-site utilization potential using currently available technologies is lower. The future of these processes depends on technology development, desire to reuse $ CO_{2} $, and prospective changes in legislation.
Biomass-based carbon capture and utilization in kraft pulp mills
Abstract Corporate image, European Emission Trading System and Environmental Regulations, encourage pulp industry to reduce carbon dioxide ($ CO_{2} $) emissions. Kraft pulp mills produce $ CO_{2} $ mainly in combustion processes. The largest sources are the recovery boiler, the biomass boiler, and the lime kiln. Due to utilizing mostly biomass-based fuels, the $ CO_{2} $ is largely biogenic. Capture and storage of $ CO_{2} $ (CCS) could offer pulp and paper industry the possibility to act as site for negative $ CO_{2} $ emissions. In addition, captured biogenic $ CO_{2} $ can be used as a raw material for bioproducts. Possibilities for $ CO_{2} $ utilization include tall oil manufacturing, lignin extraction, and production of precipitated calcium carbonate (PCC), depending on local conditions and mill-specific details. In this study, total biomass-based $ CO_{2} $ capture and storage potential (BECCS) and potential to implement capture and utilization of biomass-based $ CO_{2} $ (BECCU) in kraft pulp mills were estimated by analyzing the impacts of the processes on the operation of two modern reference mills, a Nordic softwood kraft pulp mill with integrated paper production and a Southern eucalyptus kraft pulp mill. $ CO_{2} $ capture is energy-intensive, and thus the effects on the energy balances of the mills were estimated. When papermaking is integrated in the mill operations, energy adequacy can be a limiting factor for carbon capture implementation. Global carbon capture potential was estimated based on pulp production data. Kraft pulp mills have notable $ CO_{2} $ capture potential, while the on-site utilization potential using currently available technologies is lower. The future of these processes depends on technology development, desire to reuse $ CO_{2} $, and prospective changes in legislation.
Biomass-based carbon capture and utilization in kraft pulp mills
Kuparinen, Katja (Autor:in) / Vakkilainen, Esa (Autor:in) / Tynjälä, Tero (Autor:in)
2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
BKL:
43.47
Globale Umweltprobleme
/
43.47$jGlobale Umweltprobleme
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