Sulfur dioxide removal from flue gases by supported copper and iron absorbents: Technical report No. 7, February 16, 1988--May 15, 1988
Studies of the sorption of SO/sub 2/ from simulated flue gas mixtures by using infrared (IR) spectroscopy and thermogravimetric analysis (TGA) have been conducted. Studies of the sorption of SO/sub 2/ by CuO/Al/sub 2/O/sub 3/ sorbents prepared by the extraction technique were conducted at 325/degree/C with a simulated flue gas mixture. Two approaches were used. First, the spectrum of the flue gas mixture was monitored in a flow cell both before and after exposure to the sorbent. Second, the IR spectrum in the region of 1800--/approximately/1000cm/sup -1/ was monitored for a wafer of the CuO/Al/sub 2/O/sub 3//EX sorbent at various times in the presence of the simulated flue gas mixture. From these data, it is concluded that initial sorption of SO/sub 2/ occurs by reaction of the SO/sub 2/ with an active site on the sorbent. Upon prolonged exposure to SO/sub 2/, the presence of the peak at 1200cm/sup -1/ indicates that sulfate is produced. At this time, the nature of the interaction between the SO/sub 2/ and the sorbent is not known; however, the presence of the IR peaks at 1400cm/sup -1/ suggests that the SO/sub 2/ is absorbed in a molecular form, presumably at a copper site. Further studies to determine the mechanism of absorption of the SO/sub 2/ and its conversion to sulfate on the sorbent are planned. 4 figs., 1 tab.
- Research Organization:
- Virginia Commonwealth Univ., Richmond (USA). Dept. of Chemistry
- DOE Contract Number:
- FG22-86PC91101
- OSTI ID:
- 6599145
- Report Number(s):
- DOE/PC/91101-T7; ON: DE89003060
- Resource Relation:
- Other Information: Paper copy only, copy does not permit microfiche production
- Country of Publication:
- United States
- Language:
- English
Similar Records
Sulfur dioxide removal from flue gases by supported copper and iron absorbents: Technical report No. 5, August 16, 1987-November 15, 1987
Sol-gel-derived alumina-supported copper oxide sorbent for flue gas desulfurization
Related Subjects
20 FOSSIL-FUELED POWER PLANTS
54 ENVIRONMENTAL SCIENCES
ALUMINIUM OXIDES
SORPTIVE PROPERTIES
COPPER OXIDES
SULFUR DIOXIDE
SORPTION
FLUE GAS
INFRARED SPECTRA
PROGRESS REPORT
SORBENT RECOVERY SYSTEMS
TEMPERATURE EFFECTS
THERMAL GRAVIMETRIC ANALYSIS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL ANALYSIS
COPPER COMPOUNDS
DOCUMENT TYPES
GASEOUS WASTES
GRAVIMETRIC ANALYSIS
OXIDES
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SPECTRA
SULFUR COMPOUNDS
SULFUR OXIDES
SURFACE PROPERTIES
THERMAL ANALYSIS
TRANSITION ELEMENT COMPOUNDS
WASTES
010800* - Coal
Lignite
& Peat- Waste Management
200202 - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)