铜渣载镍催化剂催化气化松木屑的实验研究  

Experimental study on the catalytic gasification of pine sawdust over nickel catalyst supported by copper slag

作　　者：袁晓涛 胡建杭[1,2] 张凤霞[2,3] 刘慧利[1,2] 刘泽伟[1,2] 李慧 YUAN Xiaotao;HU Jianhang;ZHANG Fengxia;LIU Huili;LIU Zewei;LI Hui(State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming University of Science and Technology,Kunming 650093,Yunnan,China;Faculty of Metallurgy and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan,China;Kunming Metallurgy College,Kunming 650093,Yunnan,China)

机构地区：[1]昆明理工大学省部共建复杂有色金属资源清洁利用国家重点实验室,云南昆明650093 [2]昆明理工大学冶金与能源工程学院,云南昆明650093 [3]昆明冶金高等专科学校,云南昆明650093

出　　处：《化工进展》2018年第10期3919-3927,共9页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(51376085);NSFC-云南联合基金(U1602272);国家重点实验室自主课题(CNMRCUTS1706);云南省科技领军人才项目(2015HA019)

摘　　要：采用二级固定床管式反应器,以松木屑为原料,水蒸气为气化介质,载镍铜渣为催化剂,结合XRD、TEM、BET、SEM、H_2-TPR等表征手段,考察了不同的镍载量、催化剂焙烧温度以及催化温度对生物质催化气化的影响。结果表明,铜渣载镍催化剂有相对低的比表面积,但它表现出极好的抗积炭性能和裂解焦油的能力。镍载量为2.0%的催化剂经过600℃焙烧后,氢气产量为26.91mmol/g,碳转化率达到了94.86%,积炭仅为0.16%;当催化温度从850℃升高到900℃时,氢气产量只增加了0.28mmol/g,综合考虑能源消耗、催化性能以及设备损耗等因素,最佳的催化温度为850℃。由此可见,铜渣在镍催化剂上的应用可实现废物回收利用,有着重要的实用价值。The effects of different nickel loadings,catalyst calcination temperatures and catalytic temperatures on the catalytic gasification of pine sawdust were investigated in a two-stage fixed bed reactor.The water steam was the gasification medium,and NiO/copper slag was the catalyst which was characterized by XRD,TEM,BET,SEM,H2-TPR.The results showed that the copper slag Ni-based catalyst had a relatively low surface area.However,it showed an excellent resistance to the coke deposition and a high tar removal ability.The H2 yield,carbon conversion and carbon deposit were 26.91mmol/g,94.86%and 0.16%respectively under the conditions of 2.0%nickel loading and 600℃calcination temperature.When the catalytic temperature increased from 850℃to 900℃,the H2 yield increased by only 0.28mmol/g.Based on the comprehensive consideration of energy consumption,catalytic performance and equipment spoilage,the optimal catalytic temperature was determined as 850℃.The application of copper slag in nickel catalyst could realize the reutilization of waste materials,and therefore have significant practical values.

关 键 词：松木屑 载镍铜渣 催化气化 废物利用 

分 类 号：TK6[动力工程及工程热物理—生物能]