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二氧化碳与氢合成甲醇技术和产业化进展

Technology and Industrialization Progress on Methanol Synthesis from Carbon Dioxide and Hydrogen

  • 摘要:
      目的  二氧化碳和氢合成甲醇是实现二氧化碳大规模利用的重要途径之一,对CCUS产业链条的发展具有的重要支撑作用。
      方法  文章主要对二氧化碳加氢制甲醇热力学特性、催化剂开发、产业化发展和技术经济性情况进行了综述。
      结果  Cu基催化剂、贵金属催化剂和In2O3催化剂是主要反应催化剂类型,具有较好的催化性能,但仍有待进一步提高以满足高二氧化碳转化率和高甲醇选择性。尽管二氧化碳加氢制甲醇技术进步很快,目前已处于中试试验示范阶段,但受限于氢气原料成本较高和当前甲醇价格较低当前还难以大规模推广。
      结论  随着氢能产业发展带来氢气价格的下降以及未来全国碳交易市场的启动,二氧化碳加氢制取甲醇将迎来新的发展。

     

    Abstract: Introduction Carbon dioxide hydrogenation to methanol is one of the important pathways to realize the large-scale utilization of carbon dioxide and it will favor the development of CCUS industrial chain.
      Method  Thermodynamic characteristics, catalyst development, industrialization progress and technical economics of carbon dioxide hydrogenation to methanol were reviewed.
      Result  Cu-based catalysts, precious metal catalysts and In2O3 catalyst shows good catalytic performance in carbon dioxide hydrogenation to methanol, but they still need to be further improved to increase the carbon dioxide conversion rate and methanol selectivity. Despite the rapid progress in technology of carbon dioxide hydrogenation to methanol, which is currently in the pilot stage, it is presently difficult to apply on a large scale due to high cost of hydrogen and low price of methanol.
      Conclusion  Fortunately, the price of hydrogen will drop with the booming of the hydrogen industry, and the national carbon trading market will also start, which are beneficial to the blossom of carbon dioxide hydrogenation to methanol.

     

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