Abstract：Ni-MgO/g-Al2O3 monolithic catalyst was prepared by a two-step impregnation method. To investigate the deactivation of catalysts by alkali chloride aerosol, a 300 mL/min nitrogen flow containing KCl aerosol particles was led through a catalyst bed at 800℃. The catalysts before and after deposition were characterized by ICP, BET and SEM. The results showed that the activity of the catalysts had decreased due to the reduction of the surface area of the catalyst after deposition of KCl aerosol. Accordingly, the conversion rate of CH4 and H2/CO decreased. Under the reaction condition of biomass fuel gas containing KCl aerosol at 750℃, the conversion rate of CH4 decreased from 87.24% to 32% after 17 h reaction, besides, volumetric fraction in the outlet gas of H2 decreased from 35.09% to 26.74%, that of CO decreased from 33.19% to 29.78%, however, no deactivation appeared under the condition of biomass fuel gas without KCl aerosol.
高妍 王铁军 王晨光 张琦 吴创之 马隆龙. KCl气溶胶对整体式镍基催化剂重整性能的影响[J]. , 2008, 8(2): 295-299.
GAO Yan WANG Tie-jun WANG Chen-guang WU Chuang-zhi MA Long-long. Effects of Potassium Chloride Aerosol on Ni-based Monolithic Catalyst for Reforming of Biomass Fuel Gas. , 2008, 8(2): 295-299.