Mechanistic and kinetic studies of high-temperature coal gas desulfurization sorbents. Final report, July 1988--July 1991
Mechanistic and kinetic studies of high-temperature coal gas desulfurization sorbents. Final report, July 1988--July 1991
The overall objective of this project was to investigate the properties of and evaluate mixed oxides of zinc and titanium for hot fuel gas desulfurization. Uncombined ZnO was also investigated as a base case. Detailed investigation of the reduction and sulfidation reactions of Zn-Ti-O sorbents was performed. The intrinsic kinetics and the product layer diffusion rates in reduction and sulfidation were determined. Kinetic experiments with sorbents containing various Zn/Ti atomic ratios were performed. Chemical phase and structural transformations were followed by various methods. The results were compared to similar experiments performed with ZnO. The purpose of these experiments was to determine how the presence of titanium dioxide affects the reduction and sulfidation of ZnO. This information would be used to identify and select the sorbent composition that gives the best combination of low reduction rate and acceptable sulfidation performance at temperatures exceeding 600{degree}C. (VC)
- University of North Texas United States
And Peat, Progress Report, Chemical Reaction Kinetics, Sorptive Properties, Quantity Ratio, 540, Phase Studies 010402, Purification And Upgrading, Fuel Gas, 01 Coal, Hot Gas Cleanup, Sulfidation, Titanium Oxides, Lignite, Desulfurization, Evaluation, Zinc Oxides, Reduction
And Peat, Progress Report, Chemical Reaction Kinetics, Sorptive Properties, Quantity Ratio, 540, Phase Studies 010402, Purification And Upgrading, Fuel Gas, 01 Coal, Hot Gas Cleanup, Sulfidation, Titanium Oxides, Lignite, Desulfurization, Evaluation, Zinc Oxides, Reduction
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