Exposure of refractory materials during high-temperature gasification of a woody biomass and peat mixture |
| |
Authors: | Markus Carlborg Fredrik Weiland Charlie Ma Rainer Backman Ingvar Landälv Henrik Wiinikka |
| |
Affiliation: | 1. RISE Energy Technology Center, S-941 28 Piteå, Sweden;2. Umeå University, S-901 87 Umeå, Sweden;3. Luleå University of Technology, S-971 87 Luleå, Sweden |
| |
Abstract: | Finding resilient refractory materials for slagging gasification systems have the potential to reduce costs and improve the overall plant availability by extending the service life. In this study, different refractory materials were evaluated under slagging gasification conditions. Refractory probes were continuously exposed for up to 27 h in an atmospheric, oxygen blown, entrained flow gasifier fired with a mixture of bark and peat powder. Slag infiltration depth and microstructure were studied using SEM EDS. Crystalline phases were identified with powder XRD. Increased levels of Al, originating from refractory materials, were seen in all slags. The fused cast materials were least affected, even though dissolution and slag penetration could still be observed. Thermodynamic equilibrium calculations were done for mixtures of refractory and slag, from which phase assemblages were predicted and viscosities for the liquid parts were estimated. |
| |
Keywords: | Gasification Oxygen blown Biomass Entrained flow Slag Refractory |
本文献已被 ScienceDirect 等数据库收录! |
|