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Title: Oxygen enhanced switching to combustion of lower rank fuels

Patent ·
OSTI ID:1174741

A furnace that combusts fuel, such as coal, of a given minimum energy content to obtain a stated minimum amount of energy per unit of time is enabled to combust fuel having a lower energy content, while still obtaining at least the stated minimum energy generation rate, by replacing a small amount of the combustion air fed to the furnace by oxygen. The replacement of oxygen for combustion air also provides reduction in the generation of NOx.

Research Organization:
Praxair, Inc., Danbury, CT (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-00NT40756
Assignee:
Praxair Technology, Inc. (Danbury, CT)
Patent Number(s):
6,699,029
Application Number:
10/194,574
OSTI ID:
1174741
Country of Publication:
United States
Language:
English

References (1)

Characteristics of single particle coal combustion journal January 1982