导电泡沫陶瓷过滤柴油机排气微粒的研究
Study on filtering particulates from diesel exhaust by conductive foam ceramics
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摘要: 柴油机排气微粒对环境危害严重，研究开发排气过滤技术是解决问题的有效措施之一。利用表面密集排列短纤维的导电泡沫陶瓷作为微粒过滤器的滤芯，对柴油机排气微粒的过滤效率可达90%，并可进行原位通电加热再生，再生后过滤效率不下降。同时，对表面纤维化导电泡沫陶瓷的过滤机理进行了初步探讨。Abstract: Diesel exhaust particulates seriously pollute the environment. One effective way to abate particulate pollution is to research and develop filtration techniques for particulates from diesel emission. Conductive foam ceramics covered with short fibre on its surface was used as filtering element of filter in the study. The filtration efficiency for diesel exhaust particulates was 90%. Filter was regenerated in situ with supplying power. Filtration efficiency didn’t decrease after regeneration. The filtration mechanism of conductive foam ceramics covered with short fibre was discussed.
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Key words:
- conductive foam ceramics /
- exhaust particulates /
- filtering /
- regeneration in situ
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