Chemical structural changes in advanced resid upgrading process (VisABC)

Conference · Wed Apr 01 00:00:00 EST 1987 · American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)

OSTI ID:5111551

Nakata, S; Shimizu, S; Asaoka, S; Shiroto, Y; Fukui, Y ^[1]

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1. Chiyoda Chemical Engineering and Construction Co., Ltd., Yokohama (Japan)

Effective commercial catalysts for upgrading heavy oils must have specific pore structures that will maintain activities for asphaltene conversion and demetallization over a long period while carbon and metals are continuously being deposited. The asphaltenic Bottom Cracking (ABC) catalyst, Chiyodas new residue-hydrotreating catalyst, has been developed for these purposes, with specific characteristics of chemical compositions and pore structures, which provides greater flexibility and economy in the residue hydrotreating operation. The ABC catalyst maintain its selective asphaltene-cracking and demetallization functions even with extremely large amount of metal deposition on the catalyst. The activities and stabilities of ABC catalyst have been proved in pilot plant tests and commercial operations for a number of residua. On the other hand, VisABC{sup SM} is Chiyodas servicemark for the new heavy oil upgrading process which uses an effective combination of hydroprocessing with the ABC catalyst and hydrovisbreaking reactions. The VisABC process selectively converts high metal- and asphaltene-containing heavy oils such as atmospheric residue (AR) or vacuum residue (VR) into naphtha, middle distillates, and high quality heavy fuel oils without coke or pitch as by-products. The reaction section employs a configuration in which the feedstock hydrovisbreaking heater is directly followed by a fixed-bed ABC reactor, enhancing conversion and improving product quality. They report here the results of comprehensive characterization on Arabian Heavy (AH) VR, Offshore California (CF) AR, and their treated oils (ABC, Visbreaking (VB), VisABC) by using instrumental analysis.

• OSTI ID: 5111551
• Report Number(s): CONF-8704349-; CODEN: ACPCA
• Journal Information: American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA), Vol. 32:2; Conference: Symposium on advances in resid upgrading, Denver, CO (USA), 5-10 Apr 1987; ISSN 0569-3799
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
ASPHALTENES
CHEMICAL COMPOSITION
PETROLEUM RESIDUES
STRUCTURAL CHEMICAL ANALYSIS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
DEMETALLIZATION
EXPERIMENTAL DATA
HYDROCRACKING
ASPHALTS
BITUMENS
CHEMICAL REACTIONS
CRACKING
DATA
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PYROLYSIS
SEPARATION PROCESSES
TAR
THERMOCHEMICAL PROCESSES
020400* - Petroleum- Processing