摘要
采用5种不同结构、形态的催化剂进行模型化合物和实际渣油催化临氢热转化试验,考察不同催化剂催化性能差异;采用多种分析表征方法对催化剂进行物相和结构表征,以期获得造成催化剂反应性能差异的内在结构特征。研究结果表明:金属的不同形态、均相有机催化剂的有机配体都会影响菲加氢反应性能,均相有机催化剂的菲加氢活性由高到底顺序为有机钼>有机镍>有机铁;低分散度、大尺寸的固体粉末铁催化剂的渣油缩合率高,生成的致密焦具有石墨碳特征;实验室自制有机钼催化剂在反应体系中生成单层或双层分散的纳米尺寸的硫化钼,具有更高的渣油裂化率和更低的缩合生焦率。
Five kinds of catalysts with different structures and phases were used for catalytic hydrothermal conversion of model compound and actual residue to investigate the differences of catalytic performance of different catalysts.Various characterization techniques were used to characterize the phase and structure of the catalyst in order to obtain the internal structural characteristics causing the difference of catalytic performance.The results show that different metals forms and organic ligands of homogeneous organic catalysts can affect the hydrogenation performance of phenanthrene.The phenanthrene hydrogenation activity of catalysts decreases as the following order,organo-Mo>organo-Ni>organo-Fe.Using solid powder iron catalyst with low dispersion and large size,the residue condensation rate is high,resulting in the formation of dense coke with the characteristics of graphite carbon.The organo-molybdenum catalyst made in the laboratory disperses as monolayer or bilayer nano-sized molybdenum sulfide in the reaction system,which shows higher residue cracking rate and lower condensation coking rate.
作者
侯焕娣
董明
王子军
Hou Huandi;Dong Ming;Wang Zijun(SINOPEC Research Institute of Petroleum Processing,Beijing 100083)
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2021年第10期157-162,共6页
Petroleum Processing and Petrochemicals
关键词
催化剂
渣油临氢热转化
催化剂表征
菲加氢
catalyst
residue hydrothermal conversion
catalyst characterization
phenanthrene hydrogenation
