An attrition-resistant zinc titanate sorbent for sulfur. [Quarterly] technical report, March 1, 1993--May 31, 1993
- Southern Illinois Univ., Carbondale, IL (United States). Dept. of Mechanical Engineering and Energy Processes
In the continuing search for good sorbent materials to remove sulfur from hot, coal-derived gases, zinc titanate sorbents have shown great promise. The objective of this project is to extend the work of prior investigators by developing improvements in the compressive strength and, therefore, the cycle life of these sorbents without a significant loss in chemical reactivity. During the third quarter, the preparation and properties of sorbents with a nominal composition of 50% Zn{sub 2}TiO{sub 4} and 50% TiO{sub 2} were studied. In differential thermogravimetric tests of reactivity, specimens sintered at 850 and 900{degrees}C both gave two identical sulfidation-regeneration cycles. Specimens sintered at lower temperatures showed evidence of degradation during the second cycle. Materials of this composition had lower crush strengths than for the composition 75% Zn{sub 2}TiO{sub 4} -- 25% TiO{sub 2} reported earlier, but higher values than reported by other investigators. Future work will include the preparation and properties of a lot of material with a coarser structure and larger pores, and microscopic studies on all three lots of material.
- Research Organization:
- Illinois Dept. of Energy and Natural Resources, Springfield, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC22-92PC92521
- OSTI ID:
- 10175514
- Report Number(s):
- DOE/PC/92521-T65; ON: DE93019815
- Resource Relation:
- Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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