CH_4/CO_2转化制合成气(CO/H_2)Ni/Al_2O_3系列催化剂抗积炭性能的研究

STUDY ON RESISTANCE TO CARBON FORMATION OF Ni/Al_2O_3 CATALYSTS USED IN REFORMING REACTION FROM CH_4/CO_2 TO CO/H_2

本文采用原位燃烧色谱法研究了催化剂对CH4／CO2转化制合成气反应的抗积炭性能，测定了反应中催化剂的积炭量，考察了温度等反应条件对积炭量的影响，发现Ni／CeO2－MgO－Al2O3－2催化剂具有较强的抗积炭性能，尤其在低CO2／CH4比的条件下，明显优于其他催化剂。

The formation of deposited carbon on the surface of catalysts is atal to activity of catalysts used in reforming from CH4/CO2 to CO/H2. Measuring the amount of deposited carbon of side reaction on different catalysts and examing the affects of temprture, feed ratio. time of the reaction were carried out by combustion - chromatography method. The catalyst named Ni/CeO2-MgO-Al2O3-2 is found to be superior to others particularly in lower CO2/CH4 ratio.