Advanced in-duct sorbent injection for SO{sub 2} control. Topical report number 3, Subtask 2.3: Sorbent optimization

Technical Report · Tue Nov 01 04:00:00 EST 1994

DOI:https://doi.org/10.2172/28249· OSTI ID:28249

Rosenhoover, W A; Maskew, J T; Withum, J A; Stouffer, M R

The objective of this research project is to develop second-generation duct injection technology as a cost-effective compliance option for the 1990 Clean Air Act Amendments. Specific process performance goals are to achieve 90% SO{sub 2} removal and 60% sorbent utilization efficiency. Research is focused on the Advanced Coolside process, which has shown the potential of achieving these targets. The objective of Subtask 2.3, Sorbent Optimization, was to explore means of improving performance and economics of the Advanced Coolside process through optimizing the sorbent system. Pilot plant tests of commercial and specially prepared hydrated limes showed that the process is relatively insensitive to sorbent source. This can be an important economic advantage, allowing the use of the lowest cost sorbent available at a site. A pilot plant hydration study conducted in cooperation with Dravo Lime Company further indicated the relative insensitivity of process performance to lime source and to lime physical properties. Pilot plant tests indicated that the use of very small amounts of additives in the Advanced Coolside process can improve performance under some circumstances; however, additives are not necessary to exceed process performance targets.

• Research Organization: CONSOL, Inc., Library, PA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-91PC90360
• OSTI ID: 28249
• Report Number(s): DOE/PC/90360--42; ON: DE95007957
• Country of Publication: United States
• Language: English

Related Subjects

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20 FOSSIL-FUELED POWER PLANTS
ADSORBENTS
AIR POLLUTION CONTROL
CALCIUM CHLORIDES
CALCIUM HYDROXIDES
DESULFURIZATION
DUCTS
EXPERIMENTAL DATA
FLUE GAS
FOSSIL-FUEL POWER PLANTS
MOISTURE
OHIO
PARTICLE SIZE
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PHYSICAL PROPERTIES
POROSITY
SODIUM CHLORIDES
SORBENT INJECTION PROCESSES
SORPTIVE PROPERTIES
SULFUR DIOXIDE
SURFACE AREA
THERMAL GRAVIMETRIC ANALYSIS