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Pipeline gas from coal: hydrogenation (IGT hydrogasification process). Project 9000 interim report No. 2, July 1, 1977-June 30, 1978. [Tests 63-73]

Technical Report ·
DOI:https://doi.org/10.2172/5444467· OSTI ID:5444467
Test 64 was conducted to acquire data with Peabody No. 10 Mine bituminous coal at high carbon conversions. Eight and one-half days of self-sustained operation was maintained, with carbon conversions ranging from 72% to 83%. In Test 66 over 9 days of reactor operation were logged. Steady-state, self-sustained operation was achieved at a char feed rate of about 2 tons/h and at char conversions ranging from 62% to 90%. Test 67 was conducted to obtain data at high char conversions with high char throughputs. Over 14 days of self-sustained operation were logged, including 6 hours of operation at a 3 ton/h char feed rate and char conversions of 77%. Illinois No. 6 coal was used for Tests 68 through 70. Forty-five tons of char were fed during Test 68 before a leak forced its early termination. One hundred eighteen tons of char were fed to the reactor during Test 69 before a lack of high-pressure nitrogen forced its end. The reactor operated very well during Test 70 at operating conditions necessary for high char conversions at high throughputs. Two hundred seventy-nine tons of pretreated char were fed at a rate of 3 tons/h for 46 hours. Test 71 was conducted to determine whether the major modifications recently incorporated would facilitate optimum operating conditions and clinker-free operation. The steam-oxygen zone was entirely clinker-free after Test 71. Test 72 was conducted to optimize reactor operation by improving char conversion, increasing the temperature in the steam-oxygen gasifier to 1800/sup 0/F, and continuing to reduce the steam-to-char ratios. Test 73 was initiated to achieve a lower steam-to-char ratio and a significantly lower superficial gas velocity in the steam-oxygen gasifier.
Research Organization:
Institute of Gas Technology, Chicago, IL (USA)
OSTI ID:
5444467
Report Number(s):
FE-2434-33a
Country of Publication:
United States
Language:
English