Structure and activity of dispersed Co, Ni, or Mo sulfides for slurry phase hydrocracking of vacuum residue

被引：56

作者：

Kim, Sung-Ho ^{[1
]}

Kim, Ki-Duk ^{[1
]}

Lee, Donghun ^{[1
]}

Lee, Yong-Kul ^{[1
]}

机构：

[1] Dankook Univ, Dept Chem Engn, Lab Adv Catalysis Energy & Environm, 152 Jukjeonro, Yongin 16890, South Korea

来源：

JOURNAL OF CATALYSIS | 2018年 / 364卷

基金：

新加坡国家研究基金会;

关键词：

Hydrocracking; Mo-octoate; Vacuum residue; MoS2; TRANSITION-METAL SULFIDES; HEAVY OILS; HYDRODESULFURIZATION CATALYSTS; SINGLE-LAYER; HYDROCONVERSION; PERFORMANCE; PETROLEUM; HYDROGEN; MODEL; HYDRODENITROGENATION;

D O I：

10.1016/j.jcat.2018.05.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effects of Co, Ni, or Mo precursors having different oil solubility and oxidation state on the slurry phase hydrocracking (HCK) of vacuum residue (VR) was investigated at 673 K and 9.5 MPa H-2. X-ray diffraction and extended X-ray absorption fine structure spectroscopy were used to obtain structural properties of the dispersed catalyst. Under standard operating condition, the metal precursors were found to form nanoscaled dispersed particles of MoS2, Co9S8, and Ni3S2, with the following VR HCK performances in the order MoS2 > Co(9)Ss >> Ni3S2, based on the same metal loading of 0.113 mmol. Among the oil-soluble Mo precursors such as Mo-hexacarbonyl, -octoate, and -naphthenate, it was observed that Mo-octoate having an intermediate oxidation state forms the smallest particles of 5.8 nm in size and shows the best activity in the VR HCK. (C) 2018 Elsevier Inc. All rights reserved.

引用

页码：131 / 140

页数：10

共 51 条

[1] Comparison between deactivation pattern of catalysts in fixed-bed and ebullating-bed residue hydroprocessing units [J].