关键词: 微细腔, 重力, 积炭, 催化剂活性位密度, 微细腔, 重力, 积炭, 催化剂活性位密度

Abstract: In order to study the reaction characteristics of catalytic partial oxidation of methane in micro-chamber，the characteristics of carbon deposition via temperature and density of metal active sites at certain C/O were investigated. The results show：at certain wall temperature and C/O，methane conversion rate and mass fraction of outlet hydrogen reach their maximum values，which are 99.10% and 12.39% respectively when density of metal active sites is 1.66 mmol/m². The existence of gravity makes the carbon deposition increase on wall along the gravity and decrease on the wall at the opposite direction. The carbon deposition declines with the density increasing of metal active sites when the wall temperature is below 1500K；the carbon deposition is close to zero when the wall temperature is 1500 K.

Key words: micro-chamber, gravity, carbon deposition, density of metal active sites, micro-chamber, gravity, carbon deposition, density of metal active sites