Sorbent utilization studies using a mini-pilot spray dryer. Final report, August 1, 1991--August 31, 1992
- Cincinnati Univ., OH (United States)
This report stems from a program supported by the Ohio Coal Development Office, that is part of a multi-task, multi-university effort concerned with developing and enhancing the efficiency of ``dry`` high-sulfur flue gas scrubbing processes using calcium based sorbents. The application of spray-drying flue gas desulfurization (FGD) to sources burning Ohio coal will depend on many factors, two of which are process simplicity and flexibility, and overall cost. The ability of the system to be able to handle variations in volumetric flow SO{sub 2} concentration, and even perhaps, new regulatory requirements imposed in the future are very important In addition, the amount and characteristics of the waste produced will be a major component in the operating costs of these systems. Spray-drying FGD has been shown to have a capital, cost advantage over conventional wet scrubbing, and the method has been proven to be comparatively simple and flexible. The major disadvantage is the inability of these systems to obtain high (> 90%) S0{sub 2} removal efficiencies on flue gas from high sulfur coal sources. This is the result of chemical mass transfer and thermal limitations imposed on these systems using calcium hydroxide in a slurry as the scrubbing agent. The project 1.5 has investigated a number of novel methods to improve the performance of these systems in a mini-pilot plant spray dryer facility. The objectives of project 1.5 were the following: Perform baseline parametric testing, study the effect of additives on reactivity, and perform sorbent recycle tests.
- Research Organization:
- Ohio Coal Development Office, Columbus, OH (United States); Cincinnati Univ., OH (United States)
- Sponsoring Organization:
- Ohio State Government, Columbus, OH (United States)
- OSTI ID:
- 10126712
- Report Number(s):
- OCDO-93006587; ON: TI93006587; CNN: Grant CDO/R-87-2C/B
- Resource Relation:
- Other Information: PBD: Oct 1992
- Country of Publication:
- United States
- Language:
- English
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