System for burning pulverized fuel
This patent describes a system for burning pulverized fuel. The system comprises: a high temperature oxy-fuel burner, means for delivering oxygen to the oxy-fuel burner, and means for delivering pulverized material to the oxy-fuel burner. It is characterized in that: the oxy-fuel burner includes a central passage extending from an inlet end to an outlet end for conducting pulverized material to the outlet end of the burner, disposed around the central passage adapted to conduct oxygen from proximate the inlet end to the outlet end of the burner, and disposed within the oxygen passage and surrounding the central passage a plurality of conduits for conducting natural gas from a location proximate for conducting natural gas from a location proximate the inlet end of the burner to the outlet end of the burner. The means for delivering pulverized material to the oxy-fuel burner comprises a dense phase material flow transport system; whereby the fuel is combusted to an ash with the appearance of silica sand containing negligible amounts of carbon.
- Assignee:
- Air Products and Chemicals, Inc., Allentown, PA
- Patent Number(s):
- US 4864943
- Application Number:
- PPN: US 7209455A
- OSTI ID:
- 5324097
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
014000* -- Coal
Lignite
& Peat-- Combustion
BURNERS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL FINES
COMBUSTION
COMBUSTORS
DESIGN
ENRICHMENT
FLUID FLOW
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
MINERALS
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
OXYGEN ENRICHMENT
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SOLIDS FLOW
THERMOCHEMICAL PROCESSES