Boiler-simulator studies on sorbent utilization for SO/sub 2/ control. Final report, March-September 1984

Technical Report · Mon Sep 01 04:00:00 EDT 1986

OSTI ID:7079424

Overmoe, B J; Ho, L; Chen, S L; Seeker, W R; Pershing, D W

The report gives results of a program to provide process design information for sorbent utilization as applied to EPA's LIMB process. Specifically, the program was designed to investigate the role of boiler thermal history, sorbent injection location, Ca/S molar ratio, and SO/sub 2/ partial pressure on capture effectiveness with limestones, dolomites, and slaked limes with and without metallic promoters. The experimental studies were supported by theoretical calculations using grain and pore models that considered both the heterogeneous chemical reaction and the relevant diffusional processes. The experimental results and the sulfation model calculations indicate that the sorbent injection locations and the residence time within the sulfation temperature window can significantly influence overall sulfur capture for any sorbent. Unless the sorbent is promoted with a metal additive, downstream injection at about 1500 K results in optimum sorbent utilization.

• Research Organization: Energy and Environmental Research Corp., Irvine, CA (USA)
• OSTI ID: 7079424
• Report Number(s): PB-87-101770/XAB
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
AIR POLLUTION ABATEMENT
ALKALINE EARTH METAL COMPOUNDS
BOILERS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CALCIUM HYDROXIDES
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATE ROCKS
CARBONATES
CHALCOGENIDES
DESIGN
DOLOMITE
FLUE GAS
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROXIDES
LIME-LIMESTONE WET SCRUBBING PROCESSES
LIMESTONE
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MINERALS
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
REMOVAL
ROCKS
SCRUBBING
SEDIMENTARY ROCKS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
WASTES