Pipeline gas from coal--hydrogenation (IGT hydrogasification process). Project 9000 quarterly report No. 8 for the period April 1--June 30, 1978

Technical Report · Thu Mar 01 04:00:00 EST 1979

DOI:https://doi.org/10.2172/6086937· OSTI ID:6086937

Illinois bituminous coal was used to acquire data for optimizing the HYGAS Process. Three major modifications were made in the pilot plant to encourage optimum operating conditions and clinker-free operation. Their effectiveness was assessed by Test 71, which successfully showed that all three modifications effectively left the steam--oxygen zone entirely clinker-free after the test. A post-run inspection and the necessary turnaround activities were completed after Test 71. Test 72 was conducted as a continued exploration of the conditions for optimizing reactor operation by improving carbon conversion to the 85% to 90% level, increasing the temperature in the steam--oxygen gasifier to 1800/sup 0/F, and continuing to reduce the steam-to-char ratios to approximately those used in the commercially designed (by Procon, Inc.) HYGAS Process unit. During Test 72, a total of 392 tons of pretreated char was fed to the reactor. Char conversions, determined by quick ash analyses, ranged from 60% to 90% at an operating temperature of 1800/sup 0/F. The steam feed rate was set at 5000 lb/hr, and the char feed rate was 2 tons/hr. The test was terminated at the end of the month when the vibrating feeder from the pretreated-char storage hopper failed and forced the suspension of char feed to the reactor. Several steady-state periods were selected for detailed study. A post-run inspection of the plant was made to determine the areas where modifications might be made to further increase the operating efficiency of the pilot plant. As a result, the bucket elevator speed was increased to improve its capacity, and the coal-mill crushing speed was lessened to reduce fines generation.

• Research Organization: Institute of Gas Technology, Chicago, IL (USA)
• OSTI ID: 6086937
• Report Number(s): FE-2434-33
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
COAL GASIFICATION
COMPARATIVE EVALUATIONS
DATA
DATA FORMS
DEMONSTRATION PLANTS
DESIGN
ENERGY BALANCE
EXPERIMENTAL DATA
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
FUNCTIONAL MODELS
GASIFICATION
HYGAS PROCESS
INFORMATION
MATERIAL BALANCE
MODIFICATIONS
NUMERICAL DATA
OPERATION
OPTIMIZATION
PILOT PLANTS
SNG PROCESSES
TABLES
THERMOCHEMICAL PROCESSES