Abstract:

To guide the development of CCUS by government policies, it is necessary to redefine the attributes and value of carbon dioxide, and to deeply explore its resource attributes. In the energy revolution, all social activities and industries will be affected and reconstructed in order to enable the transformation from carbon-based energy to carbon-free energy. Thinking of CCUS green technology in the low carbon scenarios of the future with innovative development and application of the three technologies forcarbon dioxide hydrogenation, carbon dioxide could be converted into syngas (CO+H₂), so as to realize high value, resource utilization and carbon solidification and archive. In sddition, Fischer-Tropsch synthesis of high-carbon hydrocarbon fuels and carbon dioxide hydrogenation in the coal power, coal chemical and cement industries is not only a way of realizing the value from carbon dioxide, but also of peak regulation of the power grid. Similarly, the dry reforming of CO₂ and CH₄ into biogas and unconventional natural gas can produce green hydrogen, renewable fuels and methanol with high value, which is of special significance for China’s rural revitalization, and can open up rural waste treatment to energy transformation and enable national industry to generate supplementary value for agriculture. The funding related to this will also enable China’s rural revitalization projects to obtain new opportunities for capital. Through low-carbon transformation of the steel and chemical industries, the high-value utilization of carbon dioxide in dry reforming of coal gas and dry gas, especially the production of methanol by dry weight integration into gas, and carbon solidification via the production of ethylene, propylene and polymers by MTO, will enable CCUS to creat new opportunities along the industrial chain. In a sense,CCUS will become a subsidiary industry of all social activities and industries and, could be regarded as a new public service industry chain.

Key words: CCUS, hydrogen energy, syngas, solar and wind energy, dry reforming, carbon neutrality

摘要：

提出政策引导CO₂回收、利用与封存（CCUS）发展，需重新定义二氧化碳的属性及价值，深度挖掘其资源属性，在以煤油气为一次能源、电为二次能源，向以电热为一次能源、氢为二次能源的再电气化能源革命转型中，为从有碳能源向无碳能源转变，将影响及重构所有社会活动及产业。本文通过未来低碳场景下CCUS绿色技术的思考，指出以二氧化碳氢化的三个技术链的创新开发和实践，使二氧化碳转化为合成气（CO+H₂），从而实现高值化、资源化碳的固化和封存。文章提出：煤电、煤化工与水泥产业的二氧化碳氢化及费托合成高碳烃燃料，不仅高值化，还可用于电网调峰；沼气及非常规天然气CO₂与CH₄的干重整可生产绿氢、可再生燃料及甲醇而高值化，对于中国的乡村振兴具有特别意义，可打通村镇废弃物处理能源化与国家工业补农业的能源基金通道，将使中国乡村振兴获得资本强化新机遇；钢铁及炼化产业的低碳发展，煤气及干气的二氧化碳干重整高值利用，特别是干重整合成气生产甲醇经甲醇制烯烃（MTO）生产乙烯和丙烯及聚合物进行碳固化，将使CCUS获得新的产业链。CCUS将成为所有社会活动及工业的附属产业，成为新的公共服务产业链。

关键词: 二氧化碳回收、利用与封存, 氢能, 合成气, 光伏风电, 干重整