Cross-industry coupling carbon dioxide recycling technology in chemical and metallurgy
The dual carbon strategy is a major national strategy,which will also promote the high-quality and sustainable development of the national economy.The time of China's carbon peak to carbon neutrality is short and the task is heavy.Carbon dioxide emissions from chemical and metallurgy in China are about 3.6 billion tons per year,accounting for about 36％of the country's industrial carbon emissions.In addition,waste gas,solid waste,waste heat generation from chemical and metallurgical possess large heap stock,difficult to use,low recycling rate.The development of low-carbon transformation and revolution of chemical and metallurgy is the fundamental guar-antee for the realization of the dual carbon goal in China's industrial field.Most of China's chemical and metallurgy are mature processes of more than 100 years,and the carbon reduction capacity is limited only through raw material and fuel substitution,together with green process transformation,so it is urgent to carry out cross-industry coupling and recycling technology of chemical and metallurgy,which can further promote carbon reduction in these industrial field.Most of China's chemical and metallurgy are isolated,non-cyclic continuous processes,which will cause the difficult of cross-industry coupling and recycling.In response to the above problems,the current situation of the control for carbon emission and national strategic for the realization of the dual carbon goal in chemical and metallurgy were firstly analyzed.Secondly,three strategies for carbon reduction and efficiency improvement were proposed:The coupling of waste gas and waste heat for transferring into high-quality gas,the coupling of waste gas and waste gas to produce high-end chemicals,and the coupling of waste gas and solid waste to produce low-carbon based materials.Finally,in order to provide support for the low-carbon and green devel-opment of industry,the specific technology for cross-industry coupling carbon dioxide recycling of chemical and metallurgy were proposed.
chemical and metallurgycarbon dioxidecarbon reductioncross-industry couplingrecycling
万方数据
维普
