skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Molten-Caustic-Leaching (Gravimelt) system integration project

Abstract

The objectives of the tasks covered in this document are to design, construct, and shakedown a 20 pounds of coal per hour integrated MCL test circuit to demonstrate the feasibility of the technology for producing a demineralized and desulfurized coal that meets New Source Performance Standards (NSPS). These objectives were met with the construction and shakedown of the integrated test circuit. Although mild kiln conditions (340{degree}C and 2 hours residence time) and a low caustic to coal ratio (1 to 1) were used, the combination of continuous operation and rigorous exclusion of air from the system allowed the production of MCL coal, from high sulfur, high ash coal, which has virtually no carbonate and volatiles loss, which does not form excessively wet cakes in during washing, and which has low alkali retention by the product MCL coal. Equipment performance was generally consistent with design requirements.

Publication Date:
Research Org.:
TRW Space and Technology Group, Redondo Beach, CA (USA). Applied Technology Div.
Sponsoring Org.:
DOE/FE
OSTI Identifier:
6581158
Report Number(s):
DOE/PC/91257-T5
ON: DE91000003
DOE Contract Number:  
AC22-86PC91257
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; EQUIPMENT; TESTING; GRAVIMELT PROCESS; COAL; DEMINERALIZATION; DESULFURIZATION; FABRICATION; KILNS; MATERIALS RECOVERY; WASHING; WASTE WATER; WATER TREATMENT; CARBONACEOUS MATERIALS; CHEMICAL REACTIONS; CLEANING; ENERGY SOURCES; FOSSIL FUELS; FUELS; HYDROGEN COMPOUNDS; LIQUID WASTES; MANAGEMENT; MATERIALS; OXYGEN COMPOUNDS; PROCESSING; RECOVERY; SEPARATION PROCESSES; WASTE MANAGEMENT; WASTE PROCESSING; WASTES; WATER; 010402* - Coal, Lignite, & Peat- Purification & Upgrading

Citation Formats

. Molten-Caustic-Leaching (Gravimelt) system integration project. United States: N. p., 1990. Web. doi:10.2172/6581158.
. Molten-Caustic-Leaching (Gravimelt) system integration project. United States. https://doi.org/10.2172/6581158
. 1990. "Molten-Caustic-Leaching (Gravimelt) system integration project". United States. https://doi.org/10.2172/6581158. https://www.osti.gov/servlets/purl/6581158.
@article{osti_6581158,
title = {Molten-Caustic-Leaching (Gravimelt) system integration project},
author = {},
abstractNote = {The objectives of the tasks covered in this document are to design, construct, and shakedown a 20 pounds of coal per hour integrated MCL test circuit to demonstrate the feasibility of the technology for producing a demineralized and desulfurized coal that meets New Source Performance Standards (NSPS). These objectives were met with the construction and shakedown of the integrated test circuit. Although mild kiln conditions (340{degree}C and 2 hours residence time) and a low caustic to coal ratio (1 to 1) were used, the combination of continuous operation and rigorous exclusion of air from the system allowed the production of MCL coal, from high sulfur, high ash coal, which has virtually no carbonate and volatiles loss, which does not form excessively wet cakes in during washing, and which has low alkali retention by the product MCL coal. Equipment performance was generally consistent with design requirements.},
doi = {10.2172/6581158},
url = {https://www.osti.gov/biblio/6581158}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {3}
}