Preparation of copper sulfide for removing mercury and study on its properties
QI Pu1, LIU Xue-wu1, CHEN Shu-hua2, ZOU Jiu-peng1
1. School of Chemical Machinery and Safety Engineering, Dalian University of Technology, Dalian 116024, China; 2. College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, China
Abstract: Copper sulfide for removing mercury is prepared through impregnation process with alumina molecular ball as carrier and copper sulfide as active substance,and the effective components of precursors in each step of preparation are characterized by XPS.The influences of technological parameters such as copper salt concentration,impregnation ratio,calcination and drying temperature on the performance of copper sulfide for removing mercury are studied in a fixed bed mercury adsorption device.Experimental results show that the prepared copper sulfide exhibits the best performance in removing mercury,with a mercury capacity of 8.925×10-4 g·g-1 when the copper salt concentration is 15%,the impregnation ratio is 60 ml of copper salt solution to 20 g of alumina,the calcination temperature maintains at 150℃ and the drying temperature is at 30℃.The mercury-removing performance of copper sulfide increases at first and decreases later with the rising calcination temperature,copper salt concentration and immersion ratio,but continuously decreases with the increase of drying temperature.
齐璞, 刘学武, 陈淑花, 邹久朋. 硫化铜脱汞剂的制备及脱汞性能研究[J]. 现代化工, 2020, 40(4): 94-98.
QI Pu, LIU Xue-wu, CHEN Shu-hua, ZOU Jiu-peng. Preparation of copper sulfide for removing mercury and study on its properties. Modern Chemical Industry, 2020, 40(4): 94-98.
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