Wet carbonization of lump-size low-rank coals by a novel non-slurry approach. Progress report, August-October 1985

Technical Report · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5841173

Lau, F S; Roberts, M J; Srivastava, V J; Mensinger, M C; Janulis, J A; Rue, D M

Work on the design and procurement of equipment for the wet-carbonization process research unit (PRU) was essentially completed this quarter. Shakedown testing of the individual pieces of equipment has been initiated. The PRU is designed to process about 100 lb/h of as-received coal. The main reactor will be able to operate at temperatures and pressures up to 650/sup 0/F and 2300 psig, respectively. One batch wet-carbonization test was conducted this quarter with North Dakota Indianhead lignite, water, and sulfuric acid. The abjective of this test was to determine the effect of this additive on the wet-carbonization characteristics. The results of this test showed no significant effects when compared with those of tests conducted without acid at similar conditions. To date, twenty-seven batch wet carbonization tests have been conducted at temperatures, pressures, and residence time in the range of 400/sup 0/ to 650/sup 0/F, 250 to 3300 psia, and 0 to 60 minutes, respectively, with coals from North Dakota (Indianhead and Center lignites), Texas (South Hallsville lignite), and Montana (Rosebud subbituminous). Fourteen char gasification tests were performed this quarter in the thermobalance unit. The results indicated that wet carbonization reduced the relative reactivity of the coals treated and that the higher the wet-carbonization temperature, the more the reduction in the relative reactivity.

• Research Organization: Institute of Gas Technology, Chicago, IL (USA)
• DOE Contract Number: AC21-84MC21225
• OSTI ID: 5841173
• Report Number(s): DOE/MC/21225-2040; ON: DE86001084
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010401* -- Coal & Coal Products-- Carbonization-- (-1987)
010404 -- Coal
Lignite
& Peat-- Gasification
010800 -- Coal
Lignite
& Peat-- Waste Management
ADDITIVES
ALKANES
BIODEGRADATION
BIOSYNTHESIS
BROWN COAL
BULK DENSITY
CARBONACEOUS MATERIALS
CARBONIZATION
CHARS
CHEMICAL REACTIONS
COAL
DATA
DECOMPOSITION
DENSITY
DESIGN
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
FUNCTIONAL MODELS
GASIFICATION
HIGH PRESSURE
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
LIGNITE
LIQUID WASTES
MATERIALS
MEDIUM PRESSURE
METHANE
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PROCESS DEVELOPMENT UNITS
PROCUREMENT
PYROLYSIS PRODUCTS
RESEARCH PROGRAMS
SLUDGES
SUBBITUMINOUS COAL
SULFURIC ACID
SYNTHESIS
TEMPERATURE EFFECTS
THERMOCHEMICAL PROCESSES
TIME DEPENDENCE
WASTE WATER
WASTES
WATER
WATER TREATMENT