SET Proceedings 2978-4387 Caravel Press 10.65582/set.2009.047 2009.047 Characteristics of Pore Structure in Filtering Layer of High Strength Reaction Bonded Silicon Carbide Hot Gas Filter for IGCC KwonHyok-Bo ChoGyoung-Sun ParkSang-Whan KimHyung-Teak Department of Environmental Engineering, Kyungnam University, Masan, Korea Material Science and Technology Division, KIST, Seoul, Korea Division of Energy Systems Research, Ajou University, Suwon, Korea 31082009 8 978-3-9813246-1-7 1 5 31 August 2009 © 2009 Copyright WSSET 2009

The high strength reaction bonded SiC(RBSC) hot gas filter was newly developed for IGCC. The RBSC hot gas filter was consisting of RBSC porous support and clay bonded SiC filtering layer which were separately fabricated. The clay bonded SiC filtering layer on RBSC support was fabricated by spray coating process and subsequently sintering process using SiC powder and feldspar powder. In this study, the pore structure including porosity and pore size of clay bonded SiC filtering layer was controlled by changing amounts of feldspar. With increasing the amounts of feldspar in filtering layer, the porosity and pore sizes in the filtering layer was decreased. The maximum porosity and average pore size of clay bonded SiC filtering layer fabricated in this study were 41% and 8 μm, respectively. The pore structure of filtering layer of hot gas filter for IGCC was optimized by controlling amounts of feldspar.

 SiC hot gas filter IGCC filtering layer porous SiC 31 August to 3 September 2009 8th International Conference on Sustainable Energy Technologies SET2009 8 Aachen, Germany