摘要
模拟实际生产石灰乳在塔内的鼓泡碳化反应,在自制的玻璃塔内进行了实验.通过对碳化反应中各个基本反应的分析,确定了反应控制步骤,并依据在283K、288K、293K、298K温度下碳化反应的气液固三相数据,建立了碳化反应动力学方程,得到了CO2和OH的级数分别为0.97和1.03,总反应级数为2.00.本研究为碳酸钙合成过程中温度、二氧化碳浓度和石灰乳浓度的调整提供了一定理论基础.
Simulating the industry production of carbonation reaction between dioxide gas and a milk of lime in tower, the experiment has been carried out in homemade glass tower. Though analyzing the each step reaction in the Ca（OH）2- CO2-H2O system, the speed controlling step was found, the reaction kinetic of this system at 283 K, 288 K, 293 K, 298 K has been studied and the reaction kinetic equation has been set up. This study provide some guidance to control the reaction temperature, concentration of CO2 and calcium hydroxide.
出处
《河北工业大学学报》
CAS
2006年第1期30-33,共4页
Journal of Hebei University of Technology
关键词
碳酸钙
消化
碳化
动力学
反应级数
calcium carbonate
carbonation
digestion
order of reaction
reaction kinetic
