4.5 Article

Levelized Cost Analysis for Blast Furnace CO2 Capture, Utilization, and Storage Retrofit in China's Blast Furnace-Basic Oxygen Furnace Steel Plants

期刊

ENERGIES
卷 16, 期 23, 页码 -

出版社

MDPI
DOI: 10.3390/en16237817

关键词

carbon capture, utilization, and storage (CCUS); steel plant; blast furnace; source-sink matching; levelized cost

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This paper constructs a comprehensive assessment model to evaluate the potential, economy, and spatial distribution of CCUS retrofits of blast furnaces in China's steel industry. The study shows that without extra incentives, the levelized cost of carbon dioxide varies greatly among the 111 steel plants considered. Carbon markets and government subsidies can contribute to the early deployment of CCUS projects.
As the largest carbon emitter in China's manufacturing sector, the low-carbon transition of the steel industry is urgent. CO2 capture, utilization, and storage (CCUS) technology is one of the effective measures to reduce carbon emissions in steel industry. In this paper, a comprehensive assessment model of source-sink matching-levelized cost in China's steel industry is constructed to evaluate the potential, economy, and spatial distribution of CCUS retrofits of blast furnaces in the BF-BOF steel industry. The results show that, if no extra incentive policy is included, the levelized cost of carbon dioxide (LCOCD) of 111 steel plants with a 420.07 Mt/a CO2 abatement potential ranges from -134.87 to 142.95 USD/t. The levelized cost of crude steel (LCOS) range of steel plants after the CCUS retrofits of blast furnaces is 341.81 to 541.41 USD/t. The incentives such as carbon market and government subsidies will all contribute to the early deployment of CCUS projects. The CCUS technology could be prioritized for deployment in North China, Northwest China, and East China's Shandong Province, but more powerful incentives are still needed for current large-scale deployment. The research results can provide references for the early deployment and policy formulation of CCUS in China's steel industry.

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