乙烯装置中甲烷气的过滤净化

小型乙烯生产装置的往复式甲烷制冷压缩机出口气体中存在黑色粉尘，易进入冷箱造成堵塞，影响甲烷制冷并危及装置生产。在小试基础上，通过粉尘特性的分析和对滤饼层的形成、复合丝网多孔材料的过滤机理，以及油性黑色粉尘的反吹再生工艺等的研究，开发出刚性复合烧结金属丝网微孔材料及其过滤技术，并在抚顺乙烯化工有限公司工业装置上增设了一套以刚性复合烧结的金属丝网多孔材料为过滤介质，可在线反吹再生的过滤系统缓解了冷箱堵塞问题。

FILTRATION OF METHANE GAS IN ETHYLENE UNIT

The black powder in the exit gas of methane compressor caused the plugging of coo ling box and resulted in the reduction of refrigeration effect. A rigid sintered metal wire mesh filter with micropores was developed for filtering the methane gas based on the studies of the powder characteristics, filter cake formation, filtering principle and back flushing regeneration. This technology was used at Fushun Ethylene Chemical Company and solved the cooling box plugging.