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氯化氫气体中含氢高以间歇精馏装置除氢

返回打印发布时间：2013/7/17 点击：11490

氯化氫合成生产制备中，氯氢合成工序是关键，不仅是氯化氫产品的品质保障，也是整个合成过程中最容易发生危险事故的工段。

用氯和氢在合成炉中进行燃烧反应生成氯化氫气体是八十年代初为适应我国电子工业的迅速发展而提出的，在技术上较为先进，由合成炉出来的氯化氫气体经常温、低温干燥和吸附净化，在低温、低压下冷凝，排除不凝气体杂质，以液态装瓶。氯、氢合成中，氢过量5％左右，氯化氫气体中含氢高，以间歇精馏装置除氢。此外，原料氢是经钯膜扩散提纯，生产规模受到一定限制。

随着我国工业生产中对于氯化氫的纯度要求越来越高，合成法制备氯化氫越来越不能满足工业需求。这也促使氯化氫生产企业制备氯化氫的方法，由合成法向脱吸法等所得氯化氫浓度较高的制备方法发展。

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