工业运转一周期柴油加氢精制催化剂分析研究  

Analysis of Diesel Hydrofining Catalysts After One Cycle of Commercial Running

作　　者：马宝利[1] 徐铁刚[1] 张文成[1] 李策宇[2] 庞玉华[3] 赵野[1] 

机构地区：[1]中国石油天然气股份有限公司石油化工研究院大庆化工研究中心,黑龙江大庆163714 [2]中国石油天然气股份有限公司大庆炼化公司炼油一厂柴油加氢车间,黑龙江大庆163411 [3]中国石油天然气股份有限公司大庆炼化公司聚合物一厂乙腈车间,黑龙江大庆163411

出　　处：《沈阳化工大学学报》2017年第2期134-137,146,共5页Journal of Shenyang University of Chemical Technology

摘　　要：对国内某石化公司运转一周期的柴油加氢精制催化剂进行分析研究,共采集一个反应器上下床层6个不同位置的催化剂样品,通过溶剂抽提处理后,利用XRF,XRD,ICP等分析手段对催化剂的积硫,积炭及微观结构等进行分析研究.研究结果表明:催化剂样品上的积炭呈现由上到下逐渐递增的趋势;不同位置催化剂的物相结构没有明显变化,比表面积,孔容,平均孔径的变化与催化剂积炭及工业运转相关;金属杂质主要为Fe、As且主要集中在上床层样品中,催化剂撇头后经再生可二次使用或降级使用.The crystalline structure and other indicators of the used diesel hydrofining catalysts after one cycle of running in a petrochemical plant was analyzed.The samples were pretreated by solvent extraction and characterized by using XRF,XRD and BET.The results showed the crystalline structure of the samples did not change significantly,but coke deposition presented the increasing tread from top to bottom of the reator.The change of BET surface and pore size were related to process conditions and the coke deposition.The main metal impurities were Fe and As,the majority of which concentrated in the upper bed of reactor.The catalysts can be used again after regeneration.

关 键 词：柴油加氢精制 催化剂 分析研究 工业运转 

分 类 号：TE624.9[石油与天然气工程—油气加工工程]