Slurry atomizer for a coal-feeder and dryer used to provide coal at gasifier pressure
Abstract
The present invention is directed to a coal-water slurry atomizer for use a high-pressure dryer employed in a pumping system utilized to feed coal into a pressurized coal gasifier. The slurry atomizer is provided with a venturi, constant area slurry injection conduit, and a plurality of tangentially disposed steam injection ports. Superheated steam is injected into the atomizer through these ports to provide a vortical flow of the steam, which, in turn, shears slurry emerging from the slurry injection conduit. The droplets of slurry are rapidly dispersed in the dryer through the venturi where the water is vaporized from the slurry by the steam prior to deleterious heating of the coal.
- Inventors:
-
- Morgantown, WV
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- OSTI Identifier:
- 864278
- Patent Number(s):
- 4341530
- Assignee:
- United States of America as represented by Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- slurry; atomizer; coal-feeder; dryer; provide; coal; gasifier; pressure; directed; coal-water; high-pressure; employed; pumping; utilized; feed; pressurized; provided; venturi; constant; injection; conduit; plurality; tangentially; disposed; steam; ports; superheated; injected; vortical; flow; shears; emerging; droplets; rapidly; dispersed; water; vaporized; prior; deleterious; heating; steam injection; water slurry; superheated steam; coal-water slurry; coal gasifier; feed coal; coal gas; vortical flow; slurry atomizer; heated steam; /48/239/414/
Citation Formats
Loth, John L, Smith, William C, and Friggens, Gary R. Slurry atomizer for a coal-feeder and dryer used to provide coal at gasifier pressure. United States: N. p., 1982.
Web.
Loth, John L, Smith, William C, & Friggens, Gary R. Slurry atomizer for a coal-feeder and dryer used to provide coal at gasifier pressure. United States.
Loth, John L, Smith, William C, and Friggens, Gary R. Fri .
"Slurry atomizer for a coal-feeder and dryer used to provide coal at gasifier pressure". United States. https://www.osti.gov/servlets/purl/864278.
@article{osti_864278,
title = {Slurry atomizer for a coal-feeder and dryer used to provide coal at gasifier pressure},
author = {Loth, John L and Smith, William C and Friggens, Gary R},
abstractNote = {The present invention is directed to a coal-water slurry atomizer for use a high-pressure dryer employed in a pumping system utilized to feed coal into a pressurized coal gasifier. The slurry atomizer is provided with a venturi, constant area slurry injection conduit, and a plurality of tangentially disposed steam injection ports. Superheated steam is injected into the atomizer through these ports to provide a vortical flow of the steam, which, in turn, shears slurry emerging from the slurry injection conduit. The droplets of slurry are rapidly dispersed in the dryer through the venturi where the water is vaporized from the slurry by the steam prior to deleterious heating of the coal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}
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