Cement kiln co-processing of classified domestic waste is an effective method of alternative raw materials and fuels for cement production,yet there exists a lack of assessment of its economic feasibility.A comparative analysis of the life cycle costs of co-processing,conventional clinker production,and waste disposal was presented using the scenario setting method.The marginal abatement costs of five gaseous pollutants,including CO2,SO2,NOx,CH4,and CO,were studied based on the energy savings and pollutant reductions from co-processing.The results showed that the disposal of classified domestic waste in cement kilns had the lowest life cycle cost.Compared to conventional clinker production,the life cycle cost was reduced by 2.16％.Based on the cement output of 2.39 billion tons and the technology promotion ratio of 3.5％in 2020 in China,the cost savings could reach 736 million yuan.The marginal abatement costs of co-processing of five pollutants were negative.By 2035,if a 35％technology promotion ratio can be achieved,it can bring an economic benefit of 2.2E+10 yuan to enterprises.
NETL
NSTL
万方数据
