Application and operation of the Shell Low Temperature DENOx System on a gas turbine cogeneration plant

Conference · Fri Nov 01 04:00:00 EST 1996

OSTI ID:390802

Bredehoft, R L; Hamilton, D M; Croce, G P; Maaskant, O L

The Shell Denox System (SDS) has been successfully employed on a gas turbine cogeneration plant in a major California refinery. The application of the low temperature catalytic reduction system applied at the tail-end of the heat recovery boiler achieves NO{sub x} reduction efficiencies (>93%) from fluegas temperatures of around 350{degrees}F. SDS was selected over conventional honeycomb SCRs and combinations of SCRs with combustion modifications because of its lower total installed cost (TIC) and higher NO{sub x} reduction cost effectiveness compared with other solutions. Problems associated with the operation of the original GT-HRSG emission reduction systems - steam injection, CO catalyst and conventional SCR - were overcome leading to higher steam generation capability. SDS presents an attractive solution to achieving compliance with the NO{sub x} `bubble` concentration rules of California and provides a more cost effective solution than lo-nox burners or conventional SCRs on large NO{sub x} emitters for plants seeking emission offsets throughout the United States.

• OSTI ID: 390802
• Report Number(s): CONF-9603118--
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
BOILERS
COGENERATION
DENITRIFICATION
FLUE GAS
GAS TURBINES
NITROGEN OXIDES
OPERATING COST
OPERATION
PERFORMANCE
TECHNOLOGY ASSESSMENT