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In view of energy conversion efficiency, the gas production from high water content (Ͼ60 wt.%) biomass via gasification is necessarily conducted with fuel drying in advance. In regard to this kind of processes Process PhilosophyIt has long been recognized that dispersed calcium on coal greatly catalyzes coal pyrolysis and char gasification reactions. [1][2][3][4][5][6][7] The dispersion of Ca onto coal particles can be implemented with either ion exchange 2,3 or impregnation/kneading. 2,4 Only through these technical means can the added Ca be bound to carboxylic sites of fuel molecular matrix to allow its pronounced catalytic effect on fuel gasification. 5,6 Obviously, either of these means implies somehow a complicated pretreatment of the fuel, 7 which surely increases the running cost. Hence, more than 30 years after the quoted catalytic effect was observed, coal catalytic gasification has not yet seen any practical application.