本文将热化学闭路循环原理用于二氧化碳分解过程,提出了一种二氧化碳闭路循环分解制取C和O_2的五段法,对组成循环的五个反应分别进行了工艺条件试验,并对反应的有关固定产物进行了X—射线分析,通过实验验证了此循环的可行性,提出本方法循环操作的示意图。本方法将为解决由二氧化碳造成的环境污染及变废为宝提供一条崭新的途径。 In this paper, the principle of thermochemical closed loop is used in the process of carbon dioxide decomposition. A five-stage method of carbon dioxide closed loop decomposition to produce C and O 2 is proposed. The five reaction conditions are tested respectively, and the reaction conditions X-ray analysis of the fixed product was carried out. The feasibility of this cycle was verified by experiments and a schematic diagram of the cycle operation of the method was proposed. This method will provide a brand new way to solve the environmental pollution caused by carbon dioxide and turn waste into treasure.