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    • 89. 发明申请
    • Elimination of Wastewater Treatment System
    • 消除污水处理系统
    • US20080179247A1
    • 2008-07-31
    • US11934271
    • 2007-11-02
    • Bruce Roger DeBruin
    • Bruce Roger DeBruin
    • C02F1/02C02F1/12
    • C08G63/785
    • A method reducing wastewater in a polyester-manufacturing plant includes a step in which ethylene glycol-containing composition from at least one of the chemical reactors is provided to a water separation column. The water separation column is kept within a predetermined temperature range such that any acetaldehyde present in the water separation column is substantially maintained in a vapor state. A waste-vapor mixture comprising one or more organic compounds is subsequently removed from the water separation column and combusted. The polyester-manufacturing plant optionally includes a spray condenser system having a heat exchanger such that the heat exchanger is contacted with a hot ethylene glycol composition derived from the water separation column when the heat exchanger needs cleaning. The polyester-manufacturing plant may be enclosed with a roof and walls such that rainwater is prevented from being contaminated with any organic chemicals present in the polyester-manufacturing plant.
    • 降低聚酯制造厂废水的方法包括将来自至少一个化学反应器的含乙二醇的组合物提供给水分离塔的步骤。 水分离塔保持在预定的温度范围内,使得存在于水分离塔中的任何乙醛基本上保持在蒸汽状态。 随后从水分离塔中除去包含一种或多种有机化合物的废蒸气混合物并燃烧。 聚酯制造设备任选地包括具有热交换器的喷射冷凝器系统,使得当换热器需要清洁时,热交换器与来自水分离塔的热乙二醇组合物接触。 聚酯制造厂可以用屋顶和墙壁封闭,以防止雨水被聚酯制造厂中存在的任何有机化学物质污染。