Engineering assessment of a low cost combined low-NOx burner-SCR system

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:405446

Teixeira, D P ^[1]; Muzio, L J; McVickar, M A ^[2]

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1. Pacific Gas & Electric Company, San Ramon, CA (United States)
2. Fossil Energy Research Corp., Laguna Hills, CA (United States)

As is well known, strict regulations governing the emissions of oxides of nitrogen from fossil-fired power plants have already been adopted in several US regions, for example southern California. In addition, other regions are considering adoption of regulations which will require major retrofits of NOx control technology as well. To date, compliance with these NOx regulations has often dictated the use of large, and expensive, SCR systems to achieve the necessary NOx levels. An alternative to these expensive SCR systems is the use of a technology strategy which combines several low cost systems to achieve the necessary degree of control. Many such {open_quotes}combined NOx control systems{close_quotes} are possible, including ones which incorporate SCR, SNCR, low-NOx burners, reburning, etc. This paper describes one attractive combined system which has the potential for low overall installed cost. This system consists of low-NOx burners and a {open_quotes}true in-duct SCR{close_quotes}. The design minimizes, or avoids the costly features of the SCR portion of the system (structural modifications, earthwork, foundations, draft system alterations, ductwork changes etc).

• OSTI ID: 405446
• Report Number(s): CONF-951208--
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
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DIAGRAMS
FLOW MODELS
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NITROGEN OXIDES
POLLUTION CONTROL EQUIPMENT
SELECTIVE CATALYTIC REDUCTION