Molybdenum Dialkyldithiophosphate as self-sulfurized catalyst precursor in Hydrocracking of Residue

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Yang, Tengfei^1 ; Liu, Congcong^1 ; Meng, Huanshuang^2 ; Qin, Yong^1 ; Deng, Wenan^1 ; Niu, Qingshan^1

State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao, Shandong, China^1

SINOPEC Jinling Petrochemical Corporation, Nanjing, Jiangsu, China^2

关键词: Asphaltene aggregates;    Atmospheric residues;    Catalyst precursors;    Crystallinities;    Dialkyldithiophosphate;    Hydrogenation activity;    Naphthenate;    Slurry phase;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/2/022036/pdf
DOI  :  10.1088/1755-1315/170/2/022036

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The molybdenum dialkyldithiophosphate (MoDTP) with the feature of self-sulfurization, has been prepared, characterized and evaluated in the slurry-phase hydrocracking of Karamay atmospheric residue (KAR) as catalyst precursor. The self-sulfurization of MoDTP achieved fine MoS2 particles with lower crystallinity and higher surface Mo4+ proportion in contrast to that of molybdenum naphthenate, implying the well sulfurized statement of MoDTP. Low coke yield and large asphaltene aggregate size using MoDTP proved the favorable hydrogenation activity of self-sulfurized catalyst in hydrocracking of residue.