Flue gas desulfurization/Jet bubbling flue gas desulfurization
Application of the Chiyoda Chemical Engineering and Construction Co. Ltd. jet bubbling reactor to flue gas desulfurization provides integration of process equipment and high scrubbing performance. This sulfur dioxide removal system offers low investment and operating costs; easy and stable operation without scaling, high sulfur dioxide removal efficiency (over 80%), manageable by-products, i.e., gypsum; and 100% limestone utilization. The jet bubbling reactor has a jet bubbling zone and a reaction zone. Flue gas is dispersed through a gas sparger with its open ends 100-400 mm below the liquid surface; this achieves a gas superficial velocity ten times as high as that in conventional bubbling columns. In the jet bubbling zone, gas-phase mass transfer of sulfur dioxide and dissolution of calcium carbonate are the controlling steps; in the reaction zone, liquid-phase mass transfer of oxygen and crystal growth of gypsum are the controlling steps. The capital and operating costs of this process for a 60 Mw 3% sulfur coal-fired unit are compared with limestone scrubbing alone or followed by oxidation.
- Research Organization:
- Chiyoda Chem. Eng. and Constr. Co. Ltd.
- OSTI ID:
- 5323467
- Journal Information:
- Chem. Eng. Prog.; (United States), Journal Name: Chem. Eng. Prog.; (United States) Vol. 74:2; ISSN CEPRA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Evaluation of the Chiyoda Thoroughbred 121 flue gas desulfurization process at the University of Illinois Abbott Plant
Catalyzed flue gas desulfurization
Related Subjects
010800* -- Coal
Lignite
& Peat-- Waste Management
42 ENGINEERING
424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM SULFATES
CARBONATE ROCKS
CHALCOGENIDES
CHEMICAL REACTIONS
COST
DESULFURIZATION
EFFICIENCY
EQUIPMENT
FLUE GAS
GASEOUS WASTES
GYPSUM
LIMESTONE
MINERALS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
POLLUTION CONTROL EQUIPMENT
REMOVAL
ROCKS
SCALING
SCRUBBING
SEDIMENTARY ROCKS
SULFATE MINERALS
SULFATES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TESTING
WASTES