拜耳赤泥脱硫工艺的应用基础研究  

Application Foundation Study on Novel Desulfurization Process

作　　者：黄芳[1] 李军旗[1] 赵平源[1] 陈义[1] 张志刚[1] 

机构地区：[1]贵州大学材料科学与冶金学院,贵阳550003

出　　处：《有色金属》2010年第3期149-151,共3页Nonferrous Metals

基　　金：贵阳市科技局项目([2008]筑科工合同字第24-12号)

摘　　要：拜耳赤泥脱除燃煤烟气SO2的新工艺符合"以废制废,变废为宝"的原则。利用拜耳赤泥作为脱硫剂,在填料吸收塔内进行脱硫,脱硫效率高、流程简单,经济,适应性强。结果表明,脱硫率与液固比xA、温度xB和鼓风量xC关系的回归方程为η=-0.52xA2+7.7225xA+0.0056xB2-0.52xB+29xC2-4.3xC+77.15。脱硫终点pH值控制在5.0左右为宜。脱硫产物主要为亚硫酸钙、石膏和硫酸盐溶液。赤泥固相脱硫作用大于液相,主要是含CaO,Al2O3,Na2O等物相的作用。The novel desulfurization process with Bayer red mud as absorbent is consonant with the principle of "treating waste by waste and changing waste into usage".It has the advantage of high absorption efficiency,simple process,low expensive,good adaptability for removing SO2 with Bayer red mud.It is found that desulfurization rate is described as "η=-0.52xA2+7.7225xA+0.0056xB2-0.52xB+29xC2-4.3xC+77.15".The end-point pH value of the process is properly controlled to 5.0 or so.The desulfurization products are mai...

关 键 词：环境工程 拜耳赤泥 脱硫 应用基础 

分 类 号：X758[环境科学与工程—环境工程]