Ni和Co物种对渣油加氢脱金属催化剂性能的影响  

Effect of Ni and Co species on the performance of catalysts in residue hydrodemetallization

作　　者：隋宝宽[1] 刘文洁[1] 王刚[1] 潘云翔 彭冲 Sui Baokuan;Liu Wenjie;Wang Gang;Pan Yunxiang;Peng Chong(Dalian Research Institute of Petroleum and Petrochemicals,SINOPEC,Dalian Liaoning 116045,China;School of Chemistry and Chemical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]中国石化大连石油化工研究院,辽宁大连116045 [2]上海交通大学化学化工学院,上海200240 [3]上海交通大学感知科学与工程学院,上海200240

出　　处：《石油化工》2022年第10期1161-1166,共6页Petrochemical Technology

基　　金：国家自然科学基金项目(22122807);辽宁省“兴辽英才计划”(XLYC1807245)。

摘　　要：利用工业渣油加氢脱金属催化剂载体构建了三种含有不同金属活性组分的催化剂:Ni-Mo催化剂、NiCo-Mo催化剂和Co-Mo催化剂,采用XRD、Raman光谱、H_(2)-TPR、NH_(3)-TPD、原位FTIR等分析方法对构建的催化剂进行表征,考察了催化剂在渣油加氢脱金属反应中的性能。实验结果表明,三种催化剂具有相近的孔结构和物相结构,与NiCo-Mo和Co-Mo催化剂相比,Ni-Mo催化剂还原温度较低,易还原的八面体配位钼物种较多,易形成Ni-Mo-S活性相,表现出了较高的加氢性能、脱金属性能以及脱残炭性能。Co-Mo催化剂酸强度高、酸量大,表现出较高的脱硫性能。研究为构建更高效的劣质原油加工催化剂提供了的实验基础。Three kinds of catalysts containing different metal active components were prepared by using industrial residue hydrodemetallization catalyst support:Ni-Mo catalyst,NiCo-Mo catalyst and Co-Mo catalyst.The catalysts were characterized by XRD,Raman spectrum,H_(2)-TPR,NH_(3)-TPD and in situ FTIR.The performance of the catalysts in residue hydrodemetallization was investigated.The experimental results show that these three catalysts have similar pore structure and phase structure.Compared with NiCo-Mo and Co-Mo catalysts,the reduction temperature of Ni-Mo catalyst is lower,the octahedral coordination molybdenum species that are easy to be reduced are more,and Ni-Mo-S active phase is easy to be formed,which makes Ni-Mo catalyst show higher performance in hydrogenation,demetallization and carbon residue removal.Co-Mo catalyst has high acid strength and large amount of acid,which makes it show high desulfurization performance.It provides an experimental basis for constructing a more efficient catalyst for processing inferior crude oil.

关 键 词：渣油 加氢脱金属 催化剂 加氢处理 

分 类 号：TQ426.95[化学工程]