Co-controlling CO2 and NOx emission in China's cement industry: An optimal development pathway study

Abstract

It is of important practical significance to reduce NO x emission and CO 2 emission in China's cement industry. This paper firstly identifies key factors that influence China's future cement demand, and then uses the Gompertz model to project China's future cement demand and production. Furthermore, the multi-pollutant abatement planning model (MAP) was developed based on the TIMES model to analyze the co-benefits of CO 2 and NO x control in China's cement industry. During modeling analysis, three scenarios such as basic as usual scenario (BAU), moderately low carbon scenario (MLC), and radically low carbon scenario (RLC), were built according to different policy constraints and emission control goals. Moreover, the benefits of co-controlling NO x and CO 2 emission in China's cement industry have been estimated. Finally, this paper proposes a cost-efficient, green, and low carbon development roadmap for the Chinese cement sector, and puts forwards countermeasures as follows: first, different ministries should enhance communication and coordination about how to promote the co-control of NO x and CO 2 in cement industry. Second, co-control technology list should be issued timely for cement industry, and the R&D investment on new technologies and demonstration projects should be increased. Third, the phase-out of old cement capacity needs to be continued at policy level. Fourth, it is important to scientifically evaluate the relevant environmental impact and adverse motivation of ammonia production by NO x removal requirement in cement industry.

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