Hydroprocessing conditions affect catalyst shape selection
Abstract
Diffusion characteristics, pressure drop limitations, catalyst pore size, catalyst loading techniques, and catalytic activity requirements all affect the selection of the catalyst shape used in hydroprocessing of heavy distillates. Haldor Topsoe Inc. has studied the effects of these hydroprocessing conditions on various shapes of its TK-551 nickel-molybdenum hydroprocessing catalysts. The studies were carried out using Arabian Heavy vacuum gas oil (VGO). For hydroprocessing heavy distillates, polylobed catalysts and dense loading techniques have obvious advantages. The higher external surface of polylobed catalysts ensures better accessibility to the inner surface of the catalyst, and dense loading allows more catalytic activity in a given reactor volume. However there are drawbacks. Polylobed catalysts tend to pack less densely thus reducing volume activity. And dense loading results in higher pressure through the bed. The philosophy behind the use of polylobed catalysts is to improve the diffusion characteristics.
- Authors:
- Publication Date:
- Research Org.:
- Haldor Topsoe Inc., Lyngby
- OSTI Identifier:
- 6827302
- Resource Type:
- Journal Article
- Journal Name:
- Oil Gas J.; (United States)
- Additional Journal Information:
- Journal Volume: 84:49
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 02 PETROLEUM; CATALYSTS; COMPARATIVE EVALUATIONS; GAS OILS; HYDROCRACKING; MOLYBDENUM; CATALYTIC EFFECTS; NICKEL; CHEMICAL FEEDSTOCKS; CHEMICAL REACTORS; DENSITY; DIFFUSION; HYDROGENATION; PETROLEUM DISTILLATES; PRESSURE DROP; SHAPE; VISCOSITY; CHEMICAL REACTIONS; CRACKING; DECOMPOSITION; DISTILLATES; ELEMENTS; ENERGY SOURCES; FOSSIL FUELS; FUELS; METALS; PETROLEUM; PETROLEUM FRACTIONS; PETROLEUM PRODUCTS; PHYSICAL PROPERTIES; PYROLYSIS; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENTS; 020400* - Petroleum- Processing
Citation Formats
Cooper, B H, Donnis, B B.L., and Moyse, B. Hydroprocessing conditions affect catalyst shape selection. United States: N. p., 1986.
Web.
Cooper, B H, Donnis, B B.L., & Moyse, B. Hydroprocessing conditions affect catalyst shape selection. United States.
Cooper, B H, Donnis, B B.L., and Moyse, B. 1986.
"Hydroprocessing conditions affect catalyst shape selection". United States.
@article{osti_6827302,
title = {Hydroprocessing conditions affect catalyst shape selection},
author = {Cooper, B H and Donnis, B B.L. and Moyse, B},
abstractNote = {Diffusion characteristics, pressure drop limitations, catalyst pore size, catalyst loading techniques, and catalytic activity requirements all affect the selection of the catalyst shape used in hydroprocessing of heavy distillates. Haldor Topsoe Inc. has studied the effects of these hydroprocessing conditions on various shapes of its TK-551 nickel-molybdenum hydroprocessing catalysts. The studies were carried out using Arabian Heavy vacuum gas oil (VGO). For hydroprocessing heavy distillates, polylobed catalysts and dense loading techniques have obvious advantages. The higher external surface of polylobed catalysts ensures better accessibility to the inner surface of the catalyst, and dense loading allows more catalytic activity in a given reactor volume. However there are drawbacks. Polylobed catalysts tend to pack less densely thus reducing volume activity. And dense loading results in higher pressure through the bed. The philosophy behind the use of polylobed catalysts is to improve the diffusion characteristics.},
doi = {},
url = {https://www.osti.gov/biblio/6827302},
journal = {Oil Gas J.; (United States)},
number = ,
volume = 84:49,
place = {United States},
year = {Mon Dec 08 00:00:00 EST 1986},
month = {Mon Dec 08 00:00:00 EST 1986}
}