Research and development of an advanced process for conversion of coal to synthetic gasoline and other distillate motor fuels. Final report

Technical Report · Sat Mar 01 00:00:00 EST 1980

DOI:https://doi.org/10.2172/5311556· OSTI ID:5311556

Succop, D. C.; Wynne, F. E.

The intial objective of this project was to investigate an advanced process for the conversion of coal to synthetic gasoline and other distillate motor fuels, by delayed coking of a coal/petroleum resid slurry with an associated displacement of petroleum residual to the Fluid Catalytic Cracking Unit. The coking process met or exceeded technical and economic predictions. Ambient pressure coking experiments with two different coal slurries demonstrated synergistic increases in C/sub 3/+ distillate yield and product quality. Slurry viscosity measurements and heater fouling tests indicated only slightly pseudo-plastic slurry behavior and no unusual pumping resistance or pressure drop in slurry heaters. However, above 814/sup 0/F rapid coking and heater fouling was experienced. Laboratory hydrogen transfer mechanism studies led to the conclusion that no C-C transfer occurred during coking. The process appears to be that of general H-H scrambling, perhaps promoted by the presence of a metal reactor and/or coal mineral matter functioning as a catalyst. A profitable coal slurry coking process could be obtained under circumstances in which a high-sulfur (about 4%) fuel oil could be marketed, excess FCC and Alkylation unit capacities would be available due to feedstock shortages, or an improved metals-tolerant FCC catalyst (or a low metals FCC feedstock) would be available. Coking was experienced in only one of the original screening runs. Other runs at 2200 psig system pressure did not foul at inside wall temperatures as high as 988/sup 0/F with similar heat flux levels. However, plugging was seen at these temperature levels when the heat flux was increased to design levels. A DOE review of their needs indicated that the remainder of the contract time and money should be redirected to a study of hydroliquefaction slurry heating.

• Research Organization: Gulf Research and Development Co., Pittsburgh, PA (USA)
• DOE Contract Number: EX-76-C-01-1800
• OSTI ID: 5311556
• Report Number(s): FE-1800-45
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
02 PETROLEUM
COAL
COKING
RESIDUAL FUELS
AUTOMOTIVE FUELS
CARBON
DEPOSITION
DISTILLATES
ECONOMICS
EXPERIMENTAL DATA
FOULING
GASOLINE
GRAPHS
HEATERS
HYDROGEN TRANSFER
TABLES
CARBONACEOUS MATERIALS
CARBONIZATION
CHEMICAL REACTIONS
DATA
DATA FORMS
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUEL OILS
FUELS
INFORMATION
NONMETALS
NUMERICAL DATA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction
010401 - Coal & Coal Products- Carbonization- (-1987)
020400 - Petroleum- Processing