The steam gasification kinetics of Chuanghong anthracite by using sodium dodecyl-benzenesulfonate and sodium citrate as catalysts was investigated in an isothermal thermo-gravimetric analyzer under ambient pressure. The relationships between coal conversion and reaction time at different catalyst concentrations(0—15%)was studied within the temperature range of 850—950,℃. The catalytic steam gasification reaction was well fitted by the shrink-ing-core model and the kinetic parameters were obtained. The research results showed that both catalysts can greatly improve gasification rate and remarkably reduce the activation energy of gasification reaction. Sodium dodecyl-benzenesulfonate has the same catalytic effect as sodium carbonate and better catalytic effect than sodium citrate on gasification rate, so it is a good catalyst for catalytic gisification of anthracite.

为了开发高效的光催化臭氧氧化反应器,以不同孔径钛微孔气体分布器对臭氧气液传质性能进行了研究。考察了表观气速和表观液速对液相总传质系数的变化影响规律,获得了液相总传质系数与表观气速的关联公式和微孔板孔径与表观气速对液相总传质系数的经验关联公式。利用无因次吸收数对微孔分布器的性能进行了分析,得到不同表观气速下微孔分布器的性能变化规律,表明在较低气体流速时,小孔径钛微孔分布板具有较高的吸收数值,有利于提高臭氧的利用率。为光催化臭氧化反应器的工业放大设计提供依据。