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OLS : Record

RECORD NUMBER: 26 OF 1670

Main Title Adipic Acid-Enhanced Lime and Limestone Testing at the EPA Alkali Scrubbing Test Facility. Volume 2: Appendices.
Author Wang, Shih-Chung; Burbank, Dewey;
CORP Author Bechtel Corp., San Francisco, CA.;Industrial Environmental Research Lab., Research Triangle Park, NC.;Department of Energy, Washington, DC.
Year Published 1982
Report Number EPA-68-02-3114; EPA-600/7-82-010B;
Stock Number PB82-230632
Subjects Air pollution control equipment; Adipic acid; Flue gases; Sulfur dioxide; Particles; Scrubbing; Industrial wastes; Combustion products; Performance evaluation; Mathematical models; Boilers; Cost analysis; Calcium oxides; Limestone scrubbing; Alkaline scrubbing
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB82-230632 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 474p
Abstract The report gives results of an advanced test program on a prototype lime/limestone wet-scrubbing test facility for removing SO2 and particulates from coal-fired boiler flue gases. Major effort during the tests was concentrated on evaluating adipic acid as an additive for enhancing SO2 removal efficiency. Results show that adipic acid can substantially improve the performance of limestone spray towers or turbulent contacting absorbers. SO2 removals greater than 90% and reliable scrubber operation were demonstrated in four long-term (greater than 1 month) limestone runs. The optimum pH was determined to be about 5.1 with the additive, compared to 5.5-6.0 without. Because of the lower operating pH, limestone utilization was significantly improved, and tests showed lower limestone consumption and reduced waste solids production with the additive. Consequently, both capital and operating costs for an adipic acid enhanced limestone system are estimated to be 5% lower than for a conventional system. The improved limestone utilization also contributes to reliable scrubber operation, thus reducing maintenance costs. Mathematical models were derived which correlate the SO2 removal performance as a function of operating parameters such as gas and slurry flow rate, pH, and adipic acid concentration.
Supplementary Notes See also Volume 1, PB82-230624. Sponsored in part by Department of Energy, Washington, DC.
NTIS Title Notes Final rept. Jul 78-Mar 81.
PUB Date Free Form Mar 82
Category Codes 13B; 68A
NTIS Prices PC A20/MF A01
Primary Description 600/13
Document Type NT
Control Number 323818614
Cataloging Source NTIS/MT
Origin NTIS
Type CAT


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