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内燃机余热甲醇催化重整制氢装置设计及实验研究

Keywords: 内燃机余热,甲醇水蒸气重整,催化剂,设计,实验

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Abstract:

氢气随车携带不便,为了能在线产生富氢气体供给内燃机燃烧,并大幅度提高内燃机的热效率,降低排放,降低热、噪声的污染,提出应用内燃机尾气余热对甲醇进行催化重整以产生氢气的方法.设计了一套内燃机余热甲醇催化重整制氢装置,在内燃机排气余热和催化剂的共同作用下,把甲醇水溶液重整成富氢气体.重整反应器为蜂窝陶瓷载体,重整催化剂为Cu/Zn/Al/Zr,采用管式换热器对载体进行加热,甲醇水溶液在载体孔道中发生催化重整反应.实验结果表明:随着发动机排气温度的增加,重整器产氢率提高,在排气温度为350℃时,重整气中氢气的体积分数达到41.9%.达到了实验预期要求.

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