SNRB project holds Technology Transfer open house

Journal Article · · PETC Review (Pittsburgh Energy Technology Center); (United States)

OSTI ID:6325311

The Clean Coal Technology Program project, [open quotes]SO[sub x]-NO[sub x]-Rox Box (SNRB) Flue Gas Clean-Up Demonstration,[close quotes] had a Technology Transfer open house at the Ohio Edison Company's R.E. Burger Power Plant on August 21 and 24, 1992. The Ohio Coal Development Office (OCDO), along with the project participant [Babcock Wilcox (B W)] and the project utility host (Ohio Edison), co-sponsored this event. SNRB is a high-temperature filtration process developed by B W that reduces emissions of sulfur dioxide (SO[sub 2]), nitrogen oxides (NO[sub x]), and particulates from the flue gas generated in a coal-fired boiler. SO[sub 2] is reduced by using in-duct injection of a calcium or sodium sorbent. NO[sub x] emissions are controlled using selective catalytic reduction (SCR) with ammonia injection. Fly ash and reaction products are collected in a high-temperature, pulse-jet baghouse. The catalyst is integrated with the baghouse to form a compact, single [open quotes]box[close quotes] for combined emissions control. The primary advantage of the SNRB process over conventional pollution control processes is hat the use of a single unit eliminates the need to design, install, and operate separate pieces of equipment for the removal of each of the pollutants. Capital and operating costs are projected to be lower, making the process attractive for both new and retrofit industrial and utility applications. In addition, the potential for improved boiler efficiency exists, which would allow the boiler system to produce more power after the process installation than before. Project design objectives predict that 70 to 90% of the sulfur pollutants and over 99% of the fly ash will be collected in bags, while SCR will account for NO[sub x] reductions of 90%. These objectives were met in pilot-scale verification tests, and results from the current field test have exceeded the project performance objectives.

• OSTI ID: 6325311
• Journal Information: PETC Review (Pittsburgh Energy Technology Center); (United States), Vol. 7
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
BAGHOUSES
DESIGN
FLUE GAS
DESULFURIZATION
NITROGEN OXIDES
AIR POLLUTION CONTROL
US CLEAN COAL TECHNOLOGY PROGRAM
DEMONSTRATION PLANTS
CAPITALIZED COST
FILTRATION
HOT GAS CLEANUP
OPERATING COST
PARTICULATES
SELECTIVE CATALYTIC REDUCTION
SORBENT INJECTION PROCESSES
SULFUR DIOXIDE
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
COST
DENITRIFICATION
EQUIPMENT
GASEOUS WASTES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
PURIFICATION
REDUCTION
SEPARATION PROCESSES
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES
010800* - Coal
Lignite
& Peat- Waste Management
200200 - Fossil-Fueled Power Plants- Waste Management