Confined zone dispersion flue gas desulfurization demonstration. Volume 1, Quarterly report No. 5, November 1, 1991--January 31, 1992

Technical Report · Thu Dec 31 00:00:00 EST 1992

DOI:https://doi.org/10.2172/10148704· OSTI ID:10148704

This is the fifth quarterly report for this project. This project is divided into three phases. Phase 1, which has been completed, involved design, engineering, and procurement for the CZD system, duct and facility modifications, and supporting equipment. Phase 2, also completed, included equipment acquisition and installation, facility construction, startup, and operator training for parametric testing. Phase 3 broadly covers testing, operation and disposition, but only a portion of Phase 3 was included in Budget Period 1. That portion was concerned with parametric testing of the CZD system to establish the optimum conditions for an extended, one-year, continuous demonstration. As of December 31, 1991, the following goals have been achieved. (1) Nozzle Selection - A modified Spraying Systems Company (SSC) atomizing nozzle has been selected for the one-year continuous CZD demonstration. (2) SO{sub 2} and NO{sub x} Reduction - Preliminary confirmation of 50% SO{sub 2} reduction has been achieved, but the NO{sub x} reduction target cannot be confirmed at this time. (3) Lime Selection - Testing indicated an injection rate of 40 to 50 gallons per minute with a lime slurry concentration of 8 to 10% to achieve 50% SO{sub 2} reduction. There has been no selection of the lime to be used in the one year demonstration. (4) ESP Optimization - Tests conducted to date have shown that lime injection has a very beneficial effect on ESP performance, and little adjustment may be necessary. (5) SO{sub 2} Removal Costs - Testing has not revealed any significant departure from the bases on which Bechtel`s original cost estimates (capital and operating) were prepared. Therefore, SO{sub 2} removal costs are still expected to be in the range of $300/ton or less.

• Research Organization: Bechtel Corp., San Francisco, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FC22-91PC90546
• OSTI ID: 10148704
• Report Number(s): DOE/PC/90546-T6-Vol.1; ON: DE93013615
• Resource Relation: Other Information: PBD: 31 Dec 1992
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
FOSSIL-FUEL POWER PLANTS
FLUE GAS
DESULFURIZATION
DEMONSTRATION PROGRAMS
PROGRESS REPORT
SORBENT INJECTION PROCESSES
SULFUR DIOXIDE
NITROGEN OXIDES
REMOVAL
CALCIUM HYDROXIDES
NOZZLES
SPRAYS
ELECTROSTATIC PRECIPITATORS
PARAMETRIC ANALYSIS
OPTIMIZATION
COST
200202
NOXIOUS GAS AND PARTICULATE EMISSIONS