Effect of polyethylene glycol addition on NiO-MoO3/Al2O3 and NiO-MoO3-P2O5/Al2O3 hydrodesulfurization catalyst

被引：14

作者：

Iwamoto, R ^{[1
]}

Kagami, N ^{[1
]}

Sakoda, Y ^{[1
]}

Iino, A ^{[1
]}

机构：

[1] Idemitsu Kosan Co Ltd, Petr Refining Technol Ctr, Refining Technol Sec 1, Ichihara, Chiba 2990107, Japan

来源：

JOURNAL OF THE JAPAN PETROLEUM INSTITUTE | 2005年 / 48卷 / 06期

关键词：

nickel molybdenum catalyst; phosphorus; hydrodesulfurization; polyethylene glycol; water soluble organic compound; catalyst preparation;

D O I：

10.1627/jpi.48.351

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Addition of polyethylene glycol (PEG) as a water soluble organic compound to the impregnation solution during catalyst preparation was investigated to improve NiO-MoO3/Al2O3 and NiO-MoO3-P2O5/Al2O3 hydrodesulfurization catalysts. XPS measurement suggested that PEG addition increases the dispersion of nickel and molybdenum on the alumina support and improves dibenzothiophene and resid hydrodesulfurization activity. The effect of PEG addition was significant for catalyst prepared from alumina with lower specific surface area and higher phosphorus content, in which the active metal precursor tends to easily aggregate. PEG might block the aggregation of active metal precursors during the drying step and may increase the number of hydrodesulfurization active sites.

引用

页码：351 / 357

页数：7

共 13 条

[1] Formation of monolayer of molybdena over alumina by unconventional slurry impregnation or solvent assisted spreading method [J].