Integrating biomass gasification with solid oxide fuel cells: Effect of real product gas tars, fluctuations and particulates on Ni-GDC anode
Integrating biomass gasification with solid oxide fuel cells: Effect of real product gas tars, fluctuations and particulates on Ni-GDC anode
复制标题
将生物质气化与固体氧化物燃料电池集成：实际产品气体焦油、波动和颗粒物对 Ni-GDC 阳极的影响
DOI：
10.1016/j.ijhydene.2008.03.020
复制
发表时间：
2008
影响因子：
7.2
通讯作者：
J. Karl
中科院分区：
文献类型：
--
作者：
P. Hofmann;K. Panopoulos;L. Fryda;A. Schweiger;J. Ouweltjes;J. Karl
这项工作的目的是通过实验评估将真正的生物质产品气体输送到固体氧化物燃料电池（SOFC）以实现高效、清洁的电力生产的可行性。焦油对 Ni-GDC 阳极的影响是实验的主要焦点。平面 SOFC 膜在两个气化地点运行：(a) 自热固定床下吸式气化器和 (b) 异热鼓泡流化床气化器。在所有情况下，气体均经过热净化，去除了颗粒物、HCl 和 H2S。 SOFC 膜在不同的产品气焦油负荷 (0–3000mgNm-3) 上进行了长达一天的测试，性能稳定。 SOFC 的 SEM/EDS 检查显示阳极完好无损；未检测到积碳或其他杂质。在高燃料利用率和高蒸汽含量的测试中，SOFC 由于阳极镍氧化而丧失了性能。在发生炉煤气颗粒到达 SOFC 的另一个极端情况下，SEM 检查发现阳极功能层内部形成了二次管状碳结构。
The aim of this work was to experimentally assess the feasibility of feeding real biomass product gas to solid oxide fuel cells (SOFC) for efficient and clean power production. The impact of tars on Ni-GDC anode was the main focus of the experiments. Planar SOFC membranes were operated at two gasification sites: (a) autothermal fixed-bed downdraft gasifier and (b) allothermal bubbling fluidized bed gasifier. In all cases the gas was hot-cleaned from particulates, HCl and H2S. SOFC membranes were tested up to one day on different product gas tar loads (0–3000mgNm-3) with stable performance. SEM/EDS examination of the SOFCs revealed intact anodes; no carbon deposition or other impurities were detected. During testing on high fuel utilization conditions and high steam content, the SOFC lost performance due to anode nickel oxidation. In another extreme case where producer gas particulates reached the SOFC, SEM examination identified secondary tubular shaped carbon structures formed inside the functional layer of the anode.