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1. 发明授权

US06500310B1 Process for the treatment of waste water 失效
标题翻译：废水处理流程
公开(公告)号：US06500310B1
公开(公告)日：2002-12-31
申请号：US09719624
申请日：2000-12-14
申请人： Robert Frank Dee , Marinus Van Zwienen
发明人： Robert Frank Dee , Marinus Van Zwienen
IPC分类号： B01D314
CPC分类号： C02F1/048 , B01D3/146
摘要： A process for treating waste water streams containing at least hydrocarbons and salts to yield a clean water product, a concentrated brine product and a hydrocarbon-rich product, which process includes the steps of: (a) feeding the waste water feed into a first distillation column at a stage in the range of from 0.05 to 0.15 from the top, wherein n represents the total number of theoretical stages of the first distillation column and has a value in the range of from 20 to 40; (b) drawing off a vapor stream at a stage in the range of from 0.55 to 0.75 from the top and feeding this vapor stream into the bottom of a second distillation column having m theoretical stages, with m having a value in the range of from 3 to 10; (c) drawing off the clean water product as the top fraction from the second distillation column and drawing off a bottom stream from the second distillation column, which is fed back into the first distillation column below the draw off of the vapor stream in step (b) at a stage in the range of from 0.60 to 0.85 from the top; (d) drawing off the concentrated brine product as the bottom fraction of the first distillation column; and (e) drawing off the hydrocarbon stream as the top fraction of the first distillation column.
摘要翻译：一种用于处理含有至少烃和盐的废水流以产生清洁水产品，浓缩的盐水产物和富含烃的产品的方法，该方法包括以下步骤：（a）将废水进料送入第一蒸馏塔的顶部从0.05至0.15的范围内，其中n表示第一蒸馏塔的理论级总数，其值在20至40的范围内; （b）从顶部抽出0.55至0.75范围内的蒸气流，并将该蒸汽流送入具有理论级的第二蒸馏塔的底部，其中m的值范围为 3至10; （c）从第二蒸馏塔抽出清洁水产品作为顶级馏分，并从第二蒸馏塔中抽出底部物流，该第二蒸馏塔在第一蒸馏塔中被反馈到低于蒸气流的蒸馏流的步骤 b）在从顶部的0.60至0.85范围内的阶段; （d）抽出浓缩的盐水产物作为第一蒸馏塔的塔底部分; 和（e）除去作为第一蒸馏塔顶馏分的烃流。

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