Coal desulfurization by a microwave process. Technical progress report, February 1981-May 1981

Technical Report · Thu Jan 01 04:00:00 EST 1981

DOI:https://doi.org/10.2172/6518880· OSTI ID:6518880

Zavitsanos, P D; Golden, J A; Bleiler, K W

Desulfurization experiments were carried out using the 6KW, 2450 MHz Flow Reactor System. The program has been directed toward the combination of physical separation and microwave exposure with NaOH to increase sulfur removal. The following treatment sequence has been used with good results: (1) expose 1/4 to 1 in. raw coal to microwaves; (2) crush the treated coal and separate the sample into float/sink fractions; (3) add NaOH to the float fraction and re-expose the sample to microwaves; and (4) wash, add NaOH and expose to microwaves. This procedure has produced up to 89% sulfur removal and as low as 0.31 numberS/10/sup 6/ Btu. Ash analyses on these samples showed as high as 40% reduction. The calorific value was increased in almost all samples. Data on sulfur, ash and calorific values are summarized.

• Research Organization: General Electric Co., Philadelphia, PA (USA)
• DOE Contract Number: AC22-80PC30142
• OSTI ID: 6518880
• Report Number(s): DOE/PC/30142-T2
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
ALKALI METAL COMPOUNDS
ASHES
CALORIFIC VALUE
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COAL
COMBUSTION PROPERTIES
DATA
DESULFURIZATION
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
HYDROXIDES
INFORMATION
MATERIALS
MICROWAVE RADIATION
NONMETALS
NUMERICAL DATA
OXYGEN COMPOUNDS
RADIATIONS
RESEARCH PROGRAMS
RESIDUES
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SULFUR