Regenerable copper-based sorbents for high temperature flue gas desulfurization

Conference · Sat Jul 01 04:00:00 EDT 2000

OSTI ID:20034363

Cengiz, P; Abbasian, J; Slimane, R B; Williams, B E; Khalili, N R; Ho, K K

During conventional combustion process the sulfur in the coal is converted to sulfur dioxide (SO{sub 2}). This hazardous air pollutant combines with the moisture in the atmosphere and creates what is commonly known as acid rain. Thus the removal of this pollutant from flue gas prior to its discharge is very important. Government regulations have been introduced and have become progressively more stringent. In the Clean Air Act Amendments (CAAA) of 1990, for example, legislation was introduced requiring electric utilities to adopt available technology for removal of pollutant gases and particulates from coal combustion flue gases so that the increased use of coal is done in an environmentally acceptable manner. A number of processes have been developed for flue gas desulfurization (FGD). The moving bed copper oxide process has been regarded as one of the most promising emerging technologies for SO{sub 2} and NO{sub x} removal from flue gases at elevated temperatures. This process is based on the utilization of a dry, regenerable sorbent, that consists of copper oxide (CuO) supported on gamma alumina ({gamma}-Al{sub 2}O{sub 3}), in a cross flow moving-bed reactor. This study has been directed toward evaluation of the commercially available alumina-supported copper-based (ALCOA) sorbent to establish the baseline for development of new and improved sorbents for the copper oxide process. Evaluation of the baseline sorbent included determination of effective sulfur capacity and sulfur removal efficiency of the sorbent, the effects of operating parameters on the performance of the sorbent, as well as long term durability of the sorbent. Physical and chemical properties of the baseline sorbent were also determined.

• Research Organization: Illinois Inst. of Tech., Chicago, IL (US)
• OSTI ID: 20034363
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
ADSORBENTS
AIR POLLUTION CONTROL
COPPER OXIDES
DESULFURIZATION
EXPERIMENTAL DATA
FLUE GAS
PERFORMANCE TESTING
SORPTIVE PROPERTIES
SULFUR DIOXIDE