Bench scale development of the TRW process for cleaning coal. Gravimelt process. Quarterly technical progress report, November 1985-January 1986

Technical Report · Tue Feb 18 00:00:00 EST 1986

OSTI ID:6213097

Construction, checkout and shakedown of the 20 lbs per hour Gravimelt modular test plant was initiated with completion scheduled for March of this year. In addition, a topical report was prepared summarizing the results of reagent regeneration verification and intermediate scale-up. The plant consists of four modules, each operated sequentially and independently. These are (1) the reaction section with a 14 inch diameter by 12 foot heated section rotary kiln as the major equipments, (2) the coal filtration module which includes a dissolver and wash tanks as well as a one square foot Bird rotary drum vacuum filter and associated tankage and pumps, (3) the spent caustic liquor and spent sulfuric acid regeneration module consisting of reaction tanks, feed tanks, a Bird solid bowl centrifuge for separation of mineral products and a polishing filter as the main equipment, and (4) the caustic evaporator system for conversion of the regenerated caustic liquor to anhydrous caustic for recycle to the kiln. The objective of operation of the modular test plant will be to demonstrate the operability of the major unit operations and to obtain equipment performance data sufficient for specification of additional pieces of equipment for a potential future project to upgrade the plant to a complete continuous unit. The more extensive plant will be capable of achieving steady state for all major process streams. 10 figs.

• Research Organization: TRW Space and Technology Group, Redondo Beach, CA (USA)
• DOE Contract Number: AC22-83PC63032
• OSTI ID: 6213097
• Report Number(s): DOE/PC/63032-T10; ON: DE86007682
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
CLEANING
GRAVIMELT PROCESS
PILOT PLANTS
COAL PREPARATION PLANTS
CONSTRUCTION
DESULFURIZATION
REAGENTS
REGENERATION
RESEARCH PROGRAMS
SEPARATION EQUIPMENT
TESTING
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
FUNCTIONAL MODELS
INDUSTRIAL PLANTS
MATERIALS
013000* - Coal
Lignite
& Peat- Transport
Handling
& Storage