一种铜锰氧化物复合催化剂的制备及其应用  

Preparation and Application of A Copper-manganese Oxide Composite Catalyst

作　　者：钟小禹 王开兵 高生明 谭思伟 ZHONG Xiao-yu;WANG Kai-bing;GAO Sheng-ming;TAN Si-wei(Guangzhou Guanggang Gases&Energy Co.,Ltd.,Guangdong Guangzhou 511458,China)

机构地区：[1]广州广钢气体能源股份有限公司,广东广州511458

出　　处：《广州化工》2021年第12期68-71,共4页GuangZhou Chemical Industry

摘　　要：铜锰催化剂作为过渡金属氧化物催化剂,是去除高纯氮气中CO的主流催化剂,但现有铜锰催化无法有效去除高纯氮气中低浓度CO。为此本研究拟采用一步水热氧化-沉淀法制备一种铜锰氧化物,并与活性氧化铝和拟薄水铝石混合挤出制备了铜锰氧化物复合催化剂。结果表明,该复合催化剂可以有效去除氮气中低浓度的CO,在2000 ppmV的CO含量的氮气测试中,CO去除率达到98%,在3 ppmV的CO含量的氮气下去除率达到100%,能够用于高纯氮的生产制备。As a transition metal oxide catalyst,the copper-manganese is the popular catalyst for CO removal,but the low-concentration CO in high-purity nitrogen is still difficult to be effectively removed by copper-manganese catalysis in the prior art.Hence,a one-step hydrothermal oxidation-precipitation method is used to prepare a copper-manganese oxide using manganese acetate and copper nitrate as raw materials.It is then mixed and extruded with activated alumina and pseudo-boehmite to form a copper-manganese oxide composite catalyst.The results indicate that the composite catalyst can effectively remove low-concentration CO in nitrogen.In the nitrogen test with a CO content of 2000 ppmV,the CO removal rate reached 98%,and the removal rate reached 100%at a CO content of 3 ppmV.Therefore,it can be used in the production and preparation of high-purity nitrogen.

关 键 词：高纯氮生产 过渡金属氧化物 铜锰氧化物 一氧化碳 催化剂 

分 类 号：TQ[化学工程]