天然二氧化碳催化脱烃制取食品级二氧化碳,在美国早已有生产,我们也已取得一定成果。其他富含CO_2油田气、石油化工生产中富含CO_2废气,也可用催化脱烃法生产食品级二氧化碳。催化脱烃则采用催化剂,并加入氧气将烃深度氧化。对烷烃其总反应是 Natural carbon dioxide catalytic de-hydrocarbonification of food-grade carbon dioxide, already produced in the United States, we have also achieved some results. Other CO_2-rich gas, petrochemical production is rich in CO_2 emissions, but also the catalytic de-hydrocarbon production of food-grade carbon dioxide. Catalytic de-hydrocarbonation uses a catalyst and oxygen is added to deeply oxidize the hydrocarbons. The total reaction to alkanes is