乙醇脱水制乙烯水资源循环利用研究
Energy Chemical Industry(2015)
Abstract
乙醇脱水制乙烯工艺废水蒸气中含有多种组分,其中催化剂粉末(w)≤0.2%、乙醇(w)≤1.5%、有机酸(w)≤0.5%、醇类(除乙醇)(w)≤0.8%、乙烯(w)≥48.5%;温度高达200℃.将废水蒸气冷却至105~110℃除去高浓度污泥后,将气相组分冷却至常温,再通过汽提除去易挥发组分,然后进行均质调节、机械过滤、IC厌氧反应器厌氧处理、生物滤池好氧曝气处理、PAM絮凝过滤后,作为中水循环利用.
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