Promotion of iron-group catalysts by a calcium salt in hydrogasification of coal chars

摘要: The effects of Fe + Ca and Ni dual catalysts on hydrogasification coal char were studied between 1 30 atm 750 900{degrees}C. Promotions Fe- Ni-catalyzed reactions by added observed in the all chars used. degree promotion increased with increases amount Ca, temperature, pressure. initial surface area was found to greatly affect activities catalysts, probably due different dispersions catalyst particles at stage impregnation. rate gasification time during isothermal mode, accelerated increase. results are discussed comparison authors previous study using model carbons.