Screening of zinc-based sorbents for hot-gas desulfurization

Journal Article · Sat Mar 15 00:00:00 EDT 2008 · Energy and Fuels

DOI:https://doi.org/10.1021/ef7004089· OSTI ID:21049720

Lee, Joong B; Ryu, Chong K; Yi, Chang K; Jo, Sung H; Kim, Sung H ^[1]

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1. Korea Electric Power Research Institute, Taejeon (Republic of Korea). Global Environment Group

Highly reactive and attrition-resistant ZnO-based sorbents that are suitable for bubbling fluidized-bed reactors can be produced using the spray-drying method. Most of the ZnO-based sorbents prepared here (ZAC-X, X = 18N-25N) satisfy the physical and chemical criteria for bubbling fluidized-bed application (spherical shape, average particle size, 90-110 {mu}m; size distribution, 40-230 {mu}m; bulk density, 0.9-1.0 g/mL; attrition index (AI), 40-80%; sulfur sorption capacity, 14-17 wt %; sorbent use, 70-80%). The performance test of the ZAC-C sorbent at Korea Institute of Energy Research (KIER) with a bubbling fluidized-bed for 70 h also demonstrated that it had good sulfidation and regeneration performance (11 wt % sorption capacity and 52% sorbent use) as well as reasonable attrition resistance (1.1% attrition loss for 70 h). 14 refs., 7 figs., 6 tabs.

• OSTI ID: 21049720
• Journal Information: Energy and Fuels, Vol. 22, Issue 2; Other Information: [e-mail]; ISSN 0887-0624
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ZINC COMPOUNDS
HOT GAS CLEANUP
DESULFURIZATION
ADSORBENTS
FLUIDIZED BED REACTORS
PERFORMANCE TESTING
SULFIDATION
REGENERATION
WEAR RESISTANCE
ZINC OXIDES