Performance of a Nickel-Activated Candle Filter for Naphthalene Cracking in Synthetic Biomass Gasification Gas
Performance of a Nickel-Activated Candle Filter for Naphthalene Cracking in Synthetic Biomass Gasification Gas
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DOI：
10.1021/ie000213x
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发表时间：
2000-07
影响因子：
4.2
通讯作者：
Hongbin Zhao;D. J. Draelants;G. Baron
中科院分区：
文献类型：
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作者：
Hongbin Zhao;D. J. Draelants;G. Baron
介绍了一种用于高温气体过滤的陶瓷蜡烛过滤器的概念，该过滤器以镍为催化剂，采用尿素沉积−沉淀法，实现了高温生物质气化气体中焦油和颗粒物的同时脱除。研究了工业热气过滤条件下，合成生物质气化气(无硫化氢和粉尘)在镍基陶瓷滤料上的焦油裂解性能。以萘作为高温生物质气化焦油的模型化合物。考察的主要参数为反应温度(750−，900℃)、气速(2.5−，6 cm/S)、催化剂负载量(镍含量分别为0.5wt%和1wt%)。结果表明，当采用典型的过滤气速时，在催化剂负载量仅为1wt%镍的活性滤料上，在800−~900℃时，萘可以完全转化为合成气(H2和CO)。
The concept of a ceramic candle filter for high-temperature gas filtration, catalytically activated with nickel using a deposition−precipitation method with urea, was introduced to perform the simultaneous removal of tar and particles from hot biomass gasification gas. Tar cracking over nickel-activated ceramic filter substrates was studied with a synthetic biomass gasification gas (free of H2S and dust) under industrial hot gas filtration conditions. Naphthalene was used as the model compound for high-temperature biomass gasification tar. The main parameters investigated were reaction temperature (750−900 °C), gas velocity (2.5−6 cm/s), and catalyst loading (0.5 and 1 wt % nickel). It was found that when typical filtration gas velocities are used, naphthalene can be completely converted mainly to syngas (H2 and CO) at 800−900 °C over activated filter substrates with a catalyst loading of only 1 wt % nickel.