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硅酸锂比锆酸锂吸附容量大、吸附速度快、成本低,是将来高温CO2吸附的首选材料。用双壳机理解释了硅酸锂吸附CO2的过程;分析了合成工艺、合成温度、金属掺杂、粒径等合成条件和吸附温度、脱附温度、CO2浓度、气体流量、再循环等运行条件对硅酸锂吸附CO2性能的影响;指出硅酸锂在甲烷制氢和整体煤气化联合循环工程的CO蒸汽重整工艺分离CO2方面具有良好的应用前景。
Lithium silicate than lithium zirconium adsorption capacity, adsorption speed, low cost, is the preferred material for high temperature CO2 adsorption. The process of adsorption of CO2 by lithium silicate was explained by double-shell mechanism. The synthesis conditions such as synthesis process, synthesis temperature, metal doping and particle size, and the operating conditions of adsorption temperature, desorption temperature, CO2 concentration, gas flow, On the adsorption of lithium silicate on the performance of CO2. It is pointed out that lithium silicate has a good application prospect in the CO steam reforming process of methane hydrogen production and integrated gasification combined cycle project.