Carbon activity sites, inherent catalysts and diffusivity of the reactant gases within the pores of the chars played key role in the gasification process.

• 煤焦表面的活性点、煤焦内在的催化剂以及反应气在煤焦孔隙之间的扩散能力是影响煤焦气化反应活性的重要因素。