负载型非钒基脱硝催化剂的研究  

Study on supported non-vanadium catalyst for selective catalytic reduction of nitric oxide by ammonia

作　　者：黄伟 龚甍 仵静 李飞 Huang Wei;Gong Meng;Wu Jing;Li Fei(Xi'an Origin Chemical Technologies Co.,Ltd.,Xi'an 710061,Shaanxi,China)

机构地区：[1]西安元创化工科技股份有限公司,陕西西安710061

出　　处：《工业催化》2021年第6期40-43,共4页Industrial Catalysis

基　　金：陕西省工业科技攻关项目(2016GY-152);陕西省重大科技创新专项资金项目(2015ZKC04-05);陕西省重点科技创新团队计划项目(2016KTC-15)。

摘　　要：以铁为主要活性组分,过渡金属为改性剂,Al_(2)O_(3)为载体制备了一种负载型非钒基脱硝催化剂,并考察了活性组分负载量、焙烧参数、活性前驱体等对催化性能的影响。结果表明,活性组分负载量和焙烧升温速率对催化剂活性影响较大;二价铁盐得到催化剂活性优于三价铁盐,其中以FeCl_(2)为前驱体得到的催化剂活性最佳;通过铈或锡改性后催化剂的活性从65%提高至87%。Supported non-vanadium based denitrification catalyst was prepared using iron as main active component,transition-metal as modifier and aluminum trioxide as support.The influences of loading of active components,calcination heating rate,and active precursor on catalyst activity were investigated.Results showed that loading of active components and calcination heating rate have great influence on catalyst activity.Activity of the catalyst prepared with divalent iron salt was better than that with trivalent iron salt,among which the FeCl_(2) as precursor was the best,and the activity of cerium or tin doped catalyst increased from 65%to 87%.

关 键 词：催化剂工程 负载型 非钒基 过渡金属掺杂 脱硝催化剂 

分 类 号：TQ426.6[化学工程] X703[环境科学与工程—环境工程]