Coal Cleaning Test Facility campaign report No. 1: Freeport Seam coal

Technical Report · Fri Feb 01 04:00:00 EST 1985

OSTI ID:5914295

Parkinson, J W; Torak, E R; Bhowmick, A K; Cavalet, J R

Campaign Report No. 1, issued by EPRI's Coal Cleaning Test Facility (CCTF), covers three test programs over a three-month period in late 1982 and early 1983. The first of these three programs, a Coal Cleanability Characterization of Pennsylvania Freeport Seam coal, determined raw-coal characteristics, sulfur and ash liberation potential and the change in characteristics produced by cleaning the coal to several quality levels using commercial-scale equipment. The CCTF tests showed that crushing this coal to 3/4-in. topsize liberated substantial amounts of pyritic sulfur that can be readily removed by physical coal cleaning. CCTF flowsheets tests demonstrated that cleaning reduced the raw-coal sulfur dioxide emission potential of 2.5 lb/MBtu to 1.2 lb/MBtu, yet recovered more than 90% of the raw-coal's heating value (Btu). This investigation, which is currently being used by two utilities in their emission control plans, represents one of the few complete assessments of the effectiveness of coal cleaning as a compliance method. In the second test program, six heavy-media cyclone performance tests were performed using three different cyclones. The test results show that mounting position affects cyclone performance. Higher feed flow rates in the near-horizontal position, require fewer cyclones to achieve a given capacity. The third program demonstrated the effectiveness and practicality of MAGNADISC magnetite recovery system for magnetite. These tests show that 60 to 80% of the lost magnetite can be recovered using MAGNADISC. An economic analysis performed for a 500-th coal-cleaning plant considering ranges of magnetite losses, magnetite prices and equipment life shows positive net present value in all cases, indicating a worthwhile investment. 40 figures, 37 tables.

• Research Organization: Kaiser (Raymond) Engineers, Inc., Homer City, PA (USA); Science Applications International Corp., Homer City, PA (USA)
• OSTI ID: 5914295
• Report Number(s): EPRI-CS-3808; ON: TI85920545
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600 -- Coal
Lignite
& Peat-- Properties & Composition
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
ASH CONTENT
BOILERS
CALORIFIC VALUE
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
CLEANING
COAL
COAL PREPARATION
COMBUSTION
COMBUSTION PROPERTIES
COMMINUTION
CONCENTRATORS
CRUSHING
CYCLONE SEPARATORS
DATA
DIAGRAMS
ECONOMIC ANALYSIS
ECONOMICS
EMISSION
ENERGY SOURCES
EQUIPMENT
EXPERIMENTAL DATA
FLOTATION
FLOWSHEETS
FOSSIL FUELS
FOULING
FUELS
HEAVY MEDIA SEPARATION
INERTIAL SEPARATORS
INFORMATION
IRON COMPOUNDS
IRON ORES
IRON OXIDES
IRON SULFIDES
MAGNETITE
MANAGEMENT
MATERIALS
MINERALS
NUMERICAL DATA
ORES
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
POLLUTION CONTROL EQUIPMENT
PROCESSING
PYRITE
RECOVERY
REMOVAL
SEPARATION EQUIPMENT
SEPARATION PROCESSES
SLAGGING PYROLYSIS PROCESS
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
SULFUR CONTENT
SULFUR DIOXIDE
SULFUR OXIDES
TEST FACILITIES
TESTING
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
WASTE MANAGEMENT
WASTE PROCESSING