Gravimelt Process Development. Quarterly technical progress report

Technical Report · Thu May 20 04:00:00 EDT 1982

OSTI ID:5143808

During the current reporting period, the bench-scale Gravimelt system was completely installed and checked out for operation. Initial coal flow checkout was performed with aqueous zinc chloride as the leaching medium simulant and Illinois No. 6 coal as the feed. It was found that the coal moved through the system and drained at the outlet arm as designed. However, the aqueous zinc chloride tended to swell the coal causing plugging after about an hour's operation. It was found that the fused caustic did not swell the coal appreciably and the coal moves through the system essentially as designed with apparent excellent drainage occurring at the outlet arm. Downstream batch washing and centrifugation operations were also checked out and found to be satisfactory. The system is now deemed to be ready for shakedown operationa t 350/sup 0/C with fused caustic and Illinois No. 6 coal. The test readiness review information and schedule is presented in Appendix A and the test plan submitted for approval to the DOE project officer is presented in Appendix B.

• Research Organization: TRW Defense and Space Systems Group, Redondo Beach, CA (USA)
• DOE Contract Number: AC22-81PC42295
• OSTI ID: 5143808
• Report Number(s): DOE/PC/42295-T3; ON: DE82016019
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
ALKALI METAL COMPOUNDS
BENCH-SCALE EXPERIMENTS
COAL PREPARATION
COMMINUTION
ENGINEERING
GRAVIMELT PROCESS
HYDROGEN COMPOUNDS
HYDROXIDES
OXYGEN COMPOUNDS
SAFETY ENGINEERING
SODIUM COMPOUNDS
SODIUM HYDROXIDES
START-UP