Commercial demonstration of the NOXSO SO{sub 2}/NO{sub x} removal flue gas cleanup system. Quarterly technical progress report No. 12, December 1, 1993--February 28, 1994

Technical Report · Sat Dec 31 00:00:00 EST 1994

DOI:https://doi.org/10.2172/367246· OSTI ID:367246

The NOXSO process is a dry, post-combustion flue gas treatment technology which uses a regenerable sorbent to simultaneously adsorb sulfur dioxide (SO{sub 2}) and nitrogen oxides (NO{sub x}) from the flue gas of a coal-fired utility boiler. In the process, the SO{sub 2} is reduced to sulfur by-product and the NO{sub x} is reduced to nitrogen and oxygen. It is predicted that the process can economically remove 90% of the acid rain precursor gases from the flue gas stream in a retrofit or new facility. The objective of the NOXSO Demonstration Project is to design, construct, and operate a flue gas treatment system utilizing the NOXSO process. The effectiveness of the process will be demonstrated by achieving significant reductions in emissions of sulfur and nitrogen oxides. In addition, sufficient operating data will be obtained to confirm the process economics and provide a basis to guarantee performance on a commercial scale. The project is presently in the project definition and preliminary design phase. Data obtained during pilot plant testing which was completed on July 30, 1993 is being incorporated in the design of the commercial size plant. A suitable host site to demonstrate the NOXSO process on a commercial scale is presently being sought. The plant general arrangement has been revised to incorporate principles used in the design of fluidized catalytic cracking (FCC) plants. A NOXSO plant availability analysis was prepared using operating experience from the recently completed pilot plant as a basis. The impact of water desorption in the sorbent heater and water adsorption in the sorbent cooler has been quantified and incorporated into the NOXSO process simulator. NOXSO process economics has been updated based on the present design. Capital cost for a 500 MW plant designed to remove 98% of the SO{sub 2} and 85% of the NO{sub x} is estimated at $247/kW.

• Research Organization: Morrison-Knudsen Corp., Cleveland, OH (United States). Ferguson Div.
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FC22-91PC90549
• OSTI ID: 367246
• Report Number(s): DOE/PC/90549-12; ON: DE96050284
• Resource Relation: Other Information: PBD: 1994
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
54 ENVIRONMENTAL SCIENCES
FLUE GAS
DESULFURIZATION
DENITRIFICATION
NOXSO PROCESS
DEMONSTRATION PROGRAMS
ECONOMICS
SULFUR DIOXIDE
ADSORPTION
NITROGEN OXIDES
PROGRESS REPORT
REMOVAL
SORBENT RECOVERY SYSTEMS
SULFUR
NITROGEN
MATERIALS RECOVERY
FLOWSHEETS
EXPERIMENTAL DATA
SIMULATORS