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Title: Cyclone reactor with internal separation and axial recirculation

Abstract

A cyclone combustor apparatus contains a circular partition plate containing a central circular aperture is described. The partition plate divides the apparatus into a cylindrical precombustor chamber and a combustor chamber. A coal-water slurry is passed axially into the inlet end of the precombustor chamber, and primary air is passed tangentially into said chamber to establish a cyclonic air flow. Combustion products pass through the partition plate aperture and into the combustor chamber. Secondary air may also be passed tangentially into the combustor chamber adjacent the partition plate to maintain the cyclonic flow. Flue gas is passed axially out of the combustor chamber at the outlet end and ash is withdrawn tangentially from the combustor chamber at the outlet end. A first mixture of flue gas and ash may be tangentially withdrawn from the combustor chamber at the outlet end and recirculated to the axial inlet of the precombustor chamber with the coal-water slurry. A second mixture may be tangentially withdrawn from the outlet end and passed to a heat exchanger for cooling. Cooled second mixture is then recirculated to the axial inlet of the precombustor chamber. In another embodiment a single cyclone combustor chamber is provided with both themore » recirculation streams of the first mixture and the second mixture. 10 figs.« less

Inventors:
;
Publication Date:
Research Org.:
Thermo Electron Corp., Waltham, MA (USA)
OSTI Identifier:
6314988
Patent Number(s):
PATENTS-US-A7224413
Application Number:
ON: DE89011444
Assignee:
Dept. of Energy TIC; ERA-14-027856; EDB-89-075775
DOE Contract Number:
AC22-87PC79650
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 42 ENGINEERING; CYCLONE COMBUSTORS; DESIGN; COAL; COMBUSTION PRODUCTS; EFFICIENCY; FUEL SLURRIES; HEATING; INVENTIONS; RESIDENTIAL BUILDINGS; BUILDINGS; CARBONACEOUS MATERIALS; COMBUSTORS; DISPERSIONS; ENERGY SOURCES; FOSSIL FUELS; FUELS; MATERIALS; MIXTURES; SLURRIES; SUSPENSIONS; 014000* - Coal, Lignite, & Peat- Combustion; 421000 - Engineering- Combustion Systems

Citation Formats

Becker, F.E., and Smolensky, L.A.. Cyclone reactor with internal separation and axial recirculation. United States: N. p., 1988. Web.
Becker, F.E., & Smolensky, L.A.. Cyclone reactor with internal separation and axial recirculation. United States.
Becker, F.E., and Smolensky, L.A.. Tue . "Cyclone reactor with internal separation and axial recirculation". United States. doi:.
@article{osti_6314988,
title = {Cyclone reactor with internal separation and axial recirculation},
author = {Becker, F.E. and Smolensky, L.A.},
abstractNote = {A cyclone combustor apparatus contains a circular partition plate containing a central circular aperture is described. The partition plate divides the apparatus into a cylindrical precombustor chamber and a combustor chamber. A coal-water slurry is passed axially into the inlet end of the precombustor chamber, and primary air is passed tangentially into said chamber to establish a cyclonic air flow. Combustion products pass through the partition plate aperture and into the combustor chamber. Secondary air may also be passed tangentially into the combustor chamber adjacent the partition plate to maintain the cyclonic flow. Flue gas is passed axially out of the combustor chamber at the outlet end and ash is withdrawn tangentially from the combustor chamber at the outlet end. A first mixture of flue gas and ash may be tangentially withdrawn from the combustor chamber at the outlet end and recirculated to the axial inlet of the precombustor chamber with the coal-water slurry. A second mixture may be tangentially withdrawn from the outlet end and passed to a heat exchanger for cooling. Cooled second mixture is then recirculated to the axial inlet of the precombustor chamber. In another embodiment a single cyclone combustor chamber is provided with both the recirculation streams of the first mixture and the second mixture. 10 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 19 00:00:00 EDT 1988},
month = {Tue Jul 19 00:00:00 EDT 1988}
}