Highly Attrition Resistant Zinc Oxide-Based Sorbents for H2S Removal by Spray Drying Technique

Conference · Thu Sep 19 00:00:00 EDT 2002

OSTI ID:836415

Ryu, C K; Lee, J B; Ahn, D H; Kim, J J; Yi, C K

Primary issues for the fluidized-bed/transport reactor process are high attrition resistant sorbent, its high sorption capacity and regenerability, durability, and cost. The overall objective of this project is the development of a superior attrition resistant zinc oxide-based sorbent for hot gas cleanup in integrated coal gasification combined cycle (IGCC). Sorbents applicable to a fluidized-bed hot gas desulfurization process must have a high attrition resistance to withstand the fast solid circulation between a desulfurizer and a regenerator, fast kinetic reactions, and high sulfur sorption capacity. The oxidative regeneration of zinc-based sorbent usually initiated at greater than 600 C with highly exothermic nature causing deactivation of sorbent as well as complication of sulfidation process by side reaction. Focusing on solving the sorbent attrition and regenerability of zinc oxide-based sorbent, we have adapted multi-binder matrices and direct incorporation of regeneration promoter. The sorbent forming was done with a spray drying technique that is easily scalable to commercial quantity.

• Research Organization: Korea Electric Power Research Institute, Munjidong, Yusung, Taejon, 305-380 (KR); Korea Institute of Energy Research, 71-2 Jangdong, Yusung, Taejon, 305-343 (KR)
• Sponsoring Organization: none (US)
• OSTI ID: 836415
• Resource Relation: Conference: 5th International Symposium on Gas Cleaning at High Temperatures, Morgantown, WV (US), 09/17/2002--09/20/2002; Other Information: PBD: 19 Sep 2002
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
CLEANING
COAL GASIFICATION
COMBINED CYCLES
DEACTIVATION
DESULFURIZATION
FLUIDIZED BEDS
HOT GAS CLEANUP
KINETICS
MATRICES
REGENERATION
REMOVAL
SORPTION
SPRAY DRYING
SULFIDATION
SULFUR
ZINC
HOT GAS DESULFURIZATION
ATTRITION
SORBENT
SPRAY DRY
FLUIDIZED-BED