TEST-RESULTS OF A CATALYTIC COMBUSTOR FOR A GAS-TURBINE

Citation
Y. Ozawa et al., TEST-RESULTS OF A CATALYTIC COMBUSTOR FOR A GAS-TURBINE, Catalysis today, 45(1-4), 1998, pp. 167-172
Citations number
4
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Engineering, Chemical","Chemistry Applied","Chemistry Physical
Journal title
ISSN journal
0920-5861
Volume
45
Issue
1-4
Year of publication
1998
Pages
167 - 172
Database
ISI
SICI code
0920-5861(1998)45:1-4<167:TOACCF>2.0.ZU;2-H
Abstract
A catalytically assisted low NOx combustor has been developed which ha s the advantage of catalyst durability. Combustion characteristics of catalysts at high pressure were investigated using a bench scale react or and an improved catalyst was selected. A combustor for multi-can ty pe gas turbine of 10 MW class was designed and tested at high-pressure conditions using liquefied natural gas (LNG) fuel. This combustor is composed of a burner system and a premixed combustion zone in a cerami c type liner. The burner system consists of catalytic combustor segmen ts and premixing nozzles. Catalyst bed temperature is controlled under 1000 degrees C, premixed gas is injected from the premixing nozzles t o catalytic combustion gas and lean premixed combustion is carried out in the premixed combustion zone. As a result of the combustion tests, NOx emission was lower than 5 ppm converted at 16% O-2 at a combustor outlet temperature of 1350 degrees C and a combustor inlet pressure o f 1.33 MPa. (C) 1998 Elsevier Science B.V. All rights reserved.