Studying the cement industry's policy incentives and the optimization path for carbon neutrality technology based on an integrated model

Carbon neutrality technology is significant for the cement industry's low-carbon, circular, and sustainable production methods. Nonetheless, a critical theoretical and practical issue needs resolution regarding government support for technological innovation in achieving a low-carbon revolution. The paper quantifies the effect of policy incentives on the cement industry based on an integrated model that combines a computable general equilibrium and technology selection. In addition to identifying the precise deployment duration needed for each technology and supporting policies, it evaluates the potential for reducing emissions and the evolutionary trajectory of various technologies. The cost-effectiveness is examined from both an economic and technological perspective. Results show that, first of all, 70% of emission reduction technologies are cost-effective under the carbon price policy, which is significant for reducing CO2 emissions in the cement industry. Second, Ecological Pre-treatment of Domestic Garbage Technology, Carbon Capture and Storage (CCS), and Hydrogen Energy Calcination Technology have penetration rates of 50%, 41%, and 13% in 2060, respectively, from the optimization path under the policy of green credit and carbon price, contributing 62% of CO2 emissions reduction. Third, the emission reduction structure of the cement industry shifts from improving energy efficiency to fuel substitution and CCS.