Asphaltene cracking in catalytic hydrotreating of heavy oils. 1. Processing of heavy oils by catalytic hydroprocessing and solvent deasphalting
A new catalytic hydrotreating process, the Asphaltenic Bottom Cracking (ABC) process, for heavy residual oils has been investigated in the relation between catalysis and chemical structure. A proprietary catalyst has been developed which is capable of hydrocracking asphaltenes into heptane-soluble materials and decreasing the vanadium content of heavy crudes and residues at a lower hydrogen consumption than a commercial hydrodesulfurization (HDS) catalyst and without change in activity in a six-month test. Various heavy feedstocks were tested in a catalytic reactor (ABC section) and a solvent deasphalting unit (SDA). Precipitated asphaltenes were recycled. Reactivities of various residues and a proposed mechanism are discussed. This ABC proces will be most useful as a step preceding an existing hydrocracking process in the upgrading of residues wit high asphaltenes and metals contents. In addition, the application of this technology is described.
- Research Organization:
- Chiyoda Chemical Engineering and Construction Co., Ltd., 3-13, Moriya-cho, Kanagawa-ku, Yokohama 221
- OSTI ID:
- 5799955
- Journal Information:
- Ind. Eng. Chem. Process Des. Dev.; (United States), Vol. 22:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PETROLEUM
CATALYTIC CRACKING
DEASPHALTING
PETROLEUM RESIDUES
HYDROCRACKING
ASPHALTENES
CATALYSIS
DESULFURIZATION
HEPTANE
METALS
TECHNOLOGY UTILIZATION
VANADIUM
VISCOSITY
ALKANES
ASPHALTS
BITUMENS
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HYDROCARBONS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM FRACTIONS
PYROLYSIS
SEPARATION PROCESSES
TAR
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
020400* - Petroleum- Processing