作　　者： ; ; ;

机构地区： 深圳大学土木工程学院深圳市土木工程耐久性重点实验室

出　　处： 《中国科技信息》 2009年第11期40-41,共2页

摘　　要： 在不同温度下利用高温固相反应合成了硅酸锂材料,用X射线粉末衍射技术表征了合成材料,用差热-热重技术分析了硅酸锂材料在高温下吸收CO2的性能。试验结果表明,硅酸锂材料约从500oC开始加速吸收CO2,并在约700oC达到最大值;温度高于700oC后,又分解并放出CO2,从而可以实现对CO2回收和利用。合成硅酸锂材料时的温度越高,对CO2的吸收值也相应提高。 Lithium silicate materials were synthesized at different temperature by soiid reaction. The synthesized products were characterized by XRD, and the property of CO2 absorption at high temperature was analysed by DTA TG, According to the current results, lithium silicate starts to react and absorbs CO around 500℃, and the absorption dosage reaches its maximum value around 700℃. When temperature is higher than 700℃, CO2 is liberated. By the cycle, CO, can be reciaimed and re--utilized. The higher synthesizing temperature, the CO2 absorption dosage is higher.

关 键 词： 二氧化碳 硅酸锂 高温吸收

领　　域： [理学] [理学] [轻工技术与工程] [轻工技术与工程]