OXYGEN ENHANCED COMBUSTION FOR NOx CONTROL

Technical Report · Tue Jan 01 04:00:00 EST 2002

DOI:https://doi.org/10.2172/793994· OSTI ID:793994

Thompson, David R; Bool, Lawrence E; Chen, Jack C

This quarterly technical progress report will summarize work accomplished for the Program in the seventh quarter October-December 2001 in the following task areas: Task 1 - Oxygen Enhanced Combustion, Task 2 - Oxygen Transport Membranes, Task 3 - Economic Evaluation and Task 4 - Program Management. Computational fluid dynamic (CFD) modeling of oxygen injection strategies was performed during the quarter resulting in data that suggest the oxygen injection reduces NOx emissions while reducing LOI. Pilot-scale testing activities concluded at the University of Utah this quarter. Testing demonstrated that some experimental conditions can lead to NOx emissions well below the 0.15 lb/MMBtu limit. Evaluation of alternative OTM materials with improved mechanical properties continued this quarter. Powder procedure optimization continued and sintering trial began on an element with a new design. Several OTM elements were tested in Praxair's single tube high-pressure test facility under various conditions. A modified PSO1d element demonstrated stable oxygen product purity of >98% and oxygen flux of 68% of target. Updated test results and projected economic performance have been reviewed with the Utility Industrial Advisors. The economic comparison remains very favorable for O{sub 2} enhanced combustion. Discussions regarding possible Beta sites have been held with three other utilities in addition to the industrial advisors. Proposals will be prepared after the completion of full scale burner testing. Beta test cost estimating work has been initiated.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: FC26-00NT40756
• OSTI ID: 793994
• Report Number(s): FC26-00NT40756--07
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
BURNERS
COMBUSTION
ECONOMICS
MECHANICAL PROPERTIES
MEMBRANE TRANSPORT
NITROGEN OXIDES
OXYGEN ENRICHMENT
PERFORMANCE TESTING
PROGRAM MANAGEMENT
PROGRESS REPORT
SINTERING