The results of TPCO2 suggested that, CO2 is moreefficient to eliminate the hydrogen-poor graphitic type carbon than H2. That isbecause the Boudouarts reaction has taken place between carbon dioxide and coke.

• TPCO_2实验表明，CO_2对低温峰积炭的影响比较大，这主要是由于CO_2与催化剂上的积炭发生了Boudouarts反应。