REACTION BEHAVIOR OF C6H6 IN THE THREE-WAY CATALYTIC CONVERTER EQUIPPED A GASOLINE ENGINE
Keywords:
C6H6, Catalytic Converter, Coexistence Gas, Temperature, Operating AgeAbstract
The reaction behavior of C6H6 was investigated in a tubular-flow reactor containing a three-way
catalyst. Experiments were performed to investigate the effects of coexistence gas components, temperature,
gas flow rate and operating age of catalytic converter. The components of C6H6, H2, CO, H2O, HC, O2 and N2
were selected from the gasoline engine exhaust gas. The experimental results show that the oxidation of C6H6
was enhanced by the presence of O2 and CO, while the presences of H2, HC and H2O have suppressive effect on
the oxidation of C6H6 than O2 and CO. The results reveal that catalyst has lower catalytic oxidation activity for
C6H6 oxidation at lower temperature, and has higher catalytic oxidation activity for C6H6 than CH4, C2H6 and
C3H8, and decomposition of C6H6 via catalyst was similar to the decompositions of C2H4 and C3H6. The
operating age of catalytic converter has lower effect on the oxidation of C6H6 with an increase in the operating
time of catalytic converter from 0 to 80,000km.
