Open AccessStudy on the assessment and reduction technology of carbon dioxide from cementing material manufacturing sector
Author(s) -
Y J Liu,
Jingrui Fang,
Yun-Im Kang,
L Wang,
Xiao Peng An
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2045/1/012031
Subject(s) - raw material , environmental science , cement , slag (welding) , carbon fibers , production (economics) , carbon dioxide , waste management , reduction (mathematics) , production line , greenhouse gas , process engineering , engineering , materials science , metallurgy , mechanical engineering , chemistry , mathematics , ecology , geometry , organic chemistry , biology , composite number , economics , composite material , macroeconomics
For the purposes of simplifying the calculation task, adjusting production processes in time and solving the inconsistent requirements for carbon emissions, this paper investigates the calculation methods of carbon dioxide emissions from cement production, for example IPCC, WBCSD-CSI, MEE-CBMA, CNIS and BNU. Then a simplification and intuitive method is proposed. Based on the intuitive method, CO 2 emission of 21 cement plants in China are calculated and analyzed, of which the error between the calculation results and those obtained by HJ 2519-2012 is less than 0.5%. About the carbon reduction technology in cement industry, there is limited reduction space that rely on energy efficiency improvements and clinker substitution. The technology of alternative fuels still needs to be further expanded. China has operated the first demonstration production line of CCUS technology at the Anhui Baimashan Conch cement plant with a capacity of 20,000 tons/year of industrial-grade liquid CO 2 products and 30,000 tons/year of food-grade liquid CO 2 products. Alternative raw material technology may be one developing direction to cut carbon emission; only 6.18% of steel slag was added to the raw meal at a 2500t/d production line, CO 2 emission from process emissions were reduced by nearly 10%.