Process for clean-burning fuel from low-rank coal
Abstract
A process is described for upgrading and stabilizing low-rank coal involving the sequential processing of the coal through three fluidized beds; first a dryer, then a pyrolyzer, and finally a cooler. The fluidizing gas for the cooler is the exit gas from the pyrolyzer with the addition of water for cooling. Overhead gas from pyrolyzing is likely burned to furnish the energy for the process. The product coal exits with a tar-like pitch sealant to enhance its safety during storage. 1 fig.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7295693
- Patent Number(s):
- 5322530
- Application Number:
- PPN: US 7-963793
- Assignee:
- Western Research Inst., Laramie, WY (United States)
- DOE Contract Number:
- FC21-86MC11076
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 20 Oct 1992
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 01 COAL, LIGNITE, AND PEAT; COAL; DRYING; PYROLYSIS; SOLID FUELS; PRODUCTION; COAL RANK; COAL TAR; FIRE HAZARDS; MITIGATION; CARBONACEOUS MATERIALS; CHEMICAL REACTIONS; DECOMPOSITION; ENERGY SOURCES; FOSSIL FUELS; FUELS; HAZARDS; MATERIALS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; TAR; THERMOCHEMICAL PROCESSES; 010300* - Coal, Lignite, & Peat- Preparation- (1987-); 010409 - Coal, Lignite, & Peat- Pyrolysis & Carbonization- (1987-)
Citation Formats
Merriam, N W, Sethi, V, and Brecher, L E. Process for clean-burning fuel from low-rank coal. United States: N. p., 1994.
Web.
Merriam, N W, Sethi, V, & Brecher, L E. Process for clean-burning fuel from low-rank coal. United States.
Merriam, N W, Sethi, V, and Brecher, L E. Tue .
"Process for clean-burning fuel from low-rank coal". United States.
@article{osti_7295693,
title = {Process for clean-burning fuel from low-rank coal},
author = {Merriam, N W and Sethi, V and Brecher, L E},
abstractNote = {A process is described for upgrading and stabilizing low-rank coal involving the sequential processing of the coal through three fluidized beds; first a dryer, then a pyrolyzer, and finally a cooler. The fluidizing gas for the cooler is the exit gas from the pyrolyzer with the addition of water for cooling. Overhead gas from pyrolyzing is likely burned to furnish the energy for the process. The product coal exits with a tar-like pitch sealant to enhance its safety during storage. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {6}
}
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