Bench-scale development of the TRW process for cleaning coal (Gravimelt Process). Quarterly technical progress report, 17 August 1983-4 November 1983
This report presents progress for the first quarter of performance on Contract number DE-AC22-83PC63032. The effort includes Tasks 6 through 13 of a continuing program to demonstrate the TRW Gravimelt coal cleaning technology. During this reporting period most of the technical effort was performed under Task 6., key regeneration studies. The Mod II reactor from the previous DOE project was utilized to produce approximately 1000 pounds of coal-caustic float material which will be utilized as the raw material for performance of Task 8 Washing Studies and also provides large samples for Task 6 Regeneration Studies. The stability of metal sulfides in fused caustic as contained in a nickel vessel was tested in order to provide confidence that experimental equipment would be available for the Task 6 studies. Anomalous ash results obtained for water Gravimelt coal were investigated by performing ashing at various temperatures and residence times. The results indicate that higher temperatures (950/sup 0/C or more) will be required to burn off all non-mineral matter components. In order to determine the effect of water on fused caustic desulfurization and demineralization of coal, a technique was tested and validated for the reduction of water in fused caustic to a level of 0.1% w/w, calculated by difference, by using a combination of heating and purging for approximately 20 hours. It was found that no standard analytical techniques exists for the direct determination of water in caustic, but indirect methods were identified by contact with a caustic producer and the ASTM. Task 13, project management, a Task 6 through 8 project logic diagram was prepared to aid in developing an overall project plan. A detailed project plan was prepared and submitted to the Department of Energy for approval. 5 tables.
- Research Organization:
- TRW Energy Development Group, Redondo Beach, CA (USA)
- DOE Contract Number:
- AC22-83PC63032
- OSTI ID:
- 5001287
- Report Number(s):
- DOE/PC/63032-T2; ON: DE84010293
- Resource Relation:
- Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
Bench-scale development of the TRW process for cleaning coal (Gravimelt Process). Quarterly technical progress report, February 1984-May 1984
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Related Subjects
COAL
CLEANING
TRW PROCESS
BENCH-SCALE EXPERIMENTS
DESULFURIZATION
EXPERIMENTAL DATA
GRAVIMELT PROCESS
REGENERATION
SODIUM CARBONATES
SODIUM HYDROXIDES
WASHING
ALKALI METAL COMPOUNDS
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATES
CHEMICAL REACTIONS
DATA
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
HYDROXIDES
INFORMATION
MATERIALS
NUMERICAL DATA
OXYGEN COMPOUNDS
SODIUM COMPOUNDS
010402* - Coal
Lignite
& Peat- Purification & Upgrading
013000 - Coal
Lignite
& Peat- Transport
Handling
& Storage