Studies reveal shot-coke microstructure, suggest ways to minimize its formation

Journal Article · Mon Feb 03 00:00:00 EST 1986 · Oil Gas J.; (United States)

OSTI ID:5998596

Mochida, I; Furuno, T; Korai, Y; Fujitsu, H

The microstructure of shot coke has been revealed by experimental studies of the formation of various petroleum cokes by carbonization of heavy resids. The results of these experimental studies indicate the mechanisms responsible for the formation of shot coke, and they suggest procedures to minimize the formation of shot coke in commercial delayed cokers. The structure of shot coke is described by the use of Montage microphotographs, comparing the structure to that of sponge coke. The photographs reveal the fine-mosaic, high-density structure of shot coke. Previous studies indicate that shot coke appears to be encountered more frequently when processing heavy resids. Marsh, et al., and Derbyshire, et al., observed the fine-mosaic texture of shot coke and discussed the mechanism of its formation. Additional information regarding the formation of shot coke is described in NPRA Q and A transcripts. Lieberman suggests the growth of shot coke and its settling in the liquid phase. This study provides additional information to help decrease the formation of shot coke.

• Research Organization: Kyushu Univ., Kasaga
• OSTI ID: 5998596
• Journal Information: Oil Gas J.; (United States), Vol. 84:5
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
COKE
MICROSTRUCTURE
PETROLEUM PRODUCTS
PETROLEUM RESIDUES
COKING
CHEMICAL REACTION KINETICS
CHEMICAL REACTORS
DENSITY
IMAGES
LIQUIDS
PHASE TRANSFORMATIONS
RESEARCH PROGRAMS
TEXTURE
VISCOSITY
CARBONIZATION
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DECOMPOSITION
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
KINETICS
PETROLEUM
PETROLEUM FRACTIONS
PHYSICAL PROPERTIES
REACTION KINETICS
020400* - Petroleum- Processing
023000 - Petroleum- Properties & Composition