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熱門關鍵詞： 工业级氯化氫 化学级氯化氫 高纯级氯化氫 电子级氯化氫 硫化氫氣體 高純氯氣 配套設備

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HCl氣體中存在惰性氣體

返回打印发布时间：2013/11/12 点击：9665

淄博言赫特气有限公司主要经营各种氯化氫产品，其中高纯氯化氫有年产2000吨的生产线。连续批量生产应用于单晶硅外延片制造的5N(99.999%)电子级(VLSI)氯化氫，以及应用于医药中间体、农药及精细化学品制造的2.8N(99.8%)化学级氯化氫。

根据电解生产经验，若氢气纯度低，氢气中必定含有较多的空气和水分。当氢气中含氧量达到5%以上时，则形成氢气与氧气的爆炸混合物，不利于安全生产。氢气中含有少量水分，虽然可以促进氢气和氯气的合成反应，但含水分过高则会造成合成炉等设备腐蚀。此外，更重要的是，氢气纯度将影响到合成和干燥后产品氯化氫的纯度，降低石墨换热器的传热系数，最终影响到氯乙烯合成和精馏系统的收率，造成精馏尾气放空惰性气体量和含氯乙烯与乙炔浓度的增加（见表2.1.5）。例如，对于月产9000t聚氯乙烯工厂的测算表明，随着氯化氫含惰性气体量的增加，精馏尾气中的氯乙烯含量急剧上升，显著增加了精馏尾气的处理难度和成本。

应该严格控制好氯气和氢气的安全比例范围，才能保证氯化氫生产过程中能够安全运行。

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