Management of coal waste by energy recovery: mild gasification/flash pyrolysis of coal preparation wastes. Quarterly report, January-March 1986
Construction continued on the Mild Gasification Unit, MGU, with the addition of the vacuum pump. The MGU can now be operated under vacuum conditions. Modifications were made to the reactor tube packing box after leaks were discovered around the old packing boxes. The new packing box is taller and wider than the old packing box allowing more effective packing. Preliminary testing shows a good vacuum seal is obtained with the modified packing box. Eight tests were conducted on the MGU. Each of the eight tests were considered a shakedown test. A variety of reactor tube configurations, condensing systems, and operating conditions were tested. It was found that operating under vacuum conditions improved the quality of liquids. Also, it was found that coal residence times can be significantly reduced by operating at increased furnace temperatures. The MGU has performed well with no major problems. The only significant problem encountered to date has been effective condensation of the hydrocarbon gases. Continuing efforts are being made toward improving the condensation system on the MGU.
- Research Organization:
- UCC Research Corp., Bristol, VA (USA)
- DOE Contract Number:
- AC21-84MC21108
- OSTI ID:
- 6793340
- Report Number(s):
- DOE/MC/21108-T2; ON: DE86012727
- Country of Publication:
- United States
- Language:
- English
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32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
ACID MINE DRAINAGE
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
DECOMPOSITION
ENERGY RECOVERY
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASIFICATION
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
MANAGEMENT
MATERIALS
MINERAL WASTES
PROCESSING
PYROLYSIS
RECOVERY
SOLID WASTES
SULFIDES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
TOXIC MATERIALS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES