Type II preliminary pilot plant evaluation of a coal liquefaction residue-water slurry using vacuum tower bottoms from the Exxon donor solvent coal liquefaction process

Technical Report · Mon Mar 01 04:00:00 EST 1982

OSTI ID:5384836

Colpitts, S G; Robin, A M

About 16 tons of vacuum tower bottoms (residue) from the Exxon Donor Solvent (EDS) Process from the liquefaction of Illinois No. 6 coal were successfully gasified at Texaco's Montebello Research Laboratory. The EDS residue was ground, slurried with water, and fed at ambient temperatures to the gasifier. The gasifier operated smoothly at 1000 psig for almost 17 hours. It was manually shut down after all of the slurry charge had been gasified. A 99.9 percent conversion of the carbon in the feed to syngas was achieved yielding 36.0 SCF of dry syngas per pound of residue charged. The oxygen requirement was 0.9 pounds of oxygen per pound of residue. The dry syngas contained about 80.8 (vol) percent carbon monoxide plus hydrogen. A comparison of the gasification efficiency of EDS residue-water slurry with the gasification efficiency of molten EDS residue revealed that the molten process was more efficient. The molten system had a greater volume percent carbon monoxide plus hydrogen in the product syngas than the residue-water slurry, 88.0% versus 80.9%, and required less oxygen for gasification, 0.80 versus 0.90 pounds of oxygen per pound of residue.

• Research Organization: Texaco, Inc., Montebello, CA (USA). Montebello Research Lab.
• DOE Contract Number: AC01-76ET10137
• OSTI ID: 5384836
• Report Number(s): DOE/ET/10137-T3; FE-2247-29; ON: DE82012311
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
COAL GASIFICATION
COAL LIQUEFACTION
COAL LIQUEFACTION PLANTS
DATA
EXPERIMENTAL DATA
EXXON LIQUEFACTION PROCESS
FUNCTIONAL MODELS
GASIFICATION
INDUSTRIAL PLANTS
INFORMATION
LIQUEFACTION
NUMERICAL DATA
PILOT PLANTS
RESIDUES
TEXACO GASIFICATION PROCESS
THERMOCHEMICAL PROCESSES