High-temperature, short-time sulfation of calcium-based sorbents. 2. Experimental data and theoretical model predictions

This paper reports on the fundamental processes for injection of CaCO{sub 3} and Ca(OH){sub 2} for the removal of SO{sub 2} from combustion gases of coal-fired boilers analyzed on the basis of experimental data and a comprehensive theoretical model. Sulfation data were obtained in a 30-kW isothermal...

Full description

Saved in:
Bibliographic Details
Published in:Industrial & engineering chemistry research 1990-11, Vol.29 (11), p.2201-2214
Main Authors: Milne, Corey R, Silcox, Geoffrey D, Pershing, David W, Kirchgessner, David A
Format: Article
Language:English
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
400201 - Chemical & Physicochemical Properties
AIR POLLUTION CONTROL
ALKALINE EARTH METAL COMPOUNDS
BOILERS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CALCIUM HYDROXIDES
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL
COMBUSTION KINETICS
CONTROL
DATA
DESULFURIZATION
ENERGY SOURCES
ENERGY TRANSFER
EXPERIMENTAL DATA
FLUE GAS
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
GASEOUS WASTES
HEAT TRANSFER
HYDROGEN COMPOUNDS
HYDROXIDES
INFORMATION
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
KINETICS
MATERIALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POWER PLANTS
REACTION KINETICS
SORBENT INJECTION PROCESSES
SORBENT RECOVERY SYSTEMS
SULFIDATION
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMAL POWER PLANTS
WASTES
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper reports on the fundamental processes for injection of CaCO{sub 3} and Ca(OH){sub 2} for the removal of SO{sub 2} from combustion gases of coal-fired boilers analyzed on the basis of experimental data and a comprehensive theoretical model. Sulfation data were obtained in a 30-kW isothermal gas-particle transport reactor at conditions simulating those of upper-furnace injection. The theoretical model accounts for particle structure, calcination, sintering, sulfation, and heat and mass transfer. Pore diffusion, product-layer diffusion, and sintering appear to be the principal processes that govern the rate of SO{sub 2} capture for the hydrate particles of interest for commercial dry sorbent injection.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie00107a004