Cyclone reactor with internal separation and axial recirculation

Patent · Tue Jul 19 00:00:00 EDT 1988

OSTI ID:6314988

Becker, F. E.; Smolensky, L. A.

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 Flue gas is passed axially out of the combustor chamber at the outlet end and ash is withdrawn tangentially from the combustor chamber at the outlet end. A first mixture of flue gas and ash may be tangentially withdrawn from the combustor chamber at the outlet end and recirculated to the axial inlet of the precombustor chamber with the coal-water slurry. A second mixture may be tangentially withdrawn from the outlet end and passed to a heat exchanger for cooling.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.

• Research Organization: Thermo Electron Corp., Waltham, MA (USA)
• DOE Contract Number: AC22-87PC79650
• Assignee: Dept. of Energy
• Patent Number(s): PATENTS-US-A7224413
• Application Number: ON: DE89011444
• OSTI ID: 6314988
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

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