公开(公告)号：KR1020040065172A

公开(公告)日：2004-07-21

申请号：KR1020040002217

申请日：2004-01-13

Applicant: 솔루티아인코포레이티드

Inventor： 모니칼,발레리에스. ,  머피,리차드디.

IPC: C07C253/32

CPC classification number: C07C253/34 ,  C07C255/03 ,  C07C255/08

Abstract: PURPOSE: Provided is an improved process for processing the effluent from the reactor, wherein the overhead stream from the quencher is condensed and a portion of the condensate is recycled back to the quencher with the remainder of the condensate being processed in a distillation column, the overhead stream can be condensed by various procedures including a column with a pump-around loop and a partial condenser, and the temperature of the condensation process is determined by the relative economics of available streams for cooling. CONSTITUTION: In a process for purifying acrylonitrile in which an ammoxidation reactor effluent containing acrylonitrile and impurities is contacted in a quench system with an aqueous quench liquid, the improvement comprises the steps of condensing liquid from an overhead stream of the quench system; and recycling the condensed liquid to the quench system prior to processing the liquid in a distillation column. In a process for purifying acrylonitrile in which an ammoxidation reactor effluent containing acrylonitrile and impurities is contacted in a quench system with an aqueous quench liquid, the improvement comprises the steps of condensing liquid from an overhead stream of the quench system in an absorber column; and recycling a portion of the condensed liquid directly to the quench system. In a process for purifying acrylonitrile in which an ammoxidation reactor effluent containing acrylonitrile and impurities is contacted in a quench system with an aqueous quench liquid, the improvement comprises the steps of condensing liquid from an overhead stream of the quench system in a partial condenser; and recycling a portion of the condensed liquid directly to the quench system.

Abstract translation: 目的：提供一种处理来自反应器的流出物的改进方法，其中来自猝灭剂的塔顶物流被冷凝，并且一部分冷凝物循环回猝灭剂，其余的冷凝物在蒸馏塔中加工， 塔顶流可以通过包括具有泵送回路和部分冷凝器的塔的各种方法冷凝，并且冷凝过程的温度由用于冷却的可用流的相对经济性来确定。 构成：在纯化丙烯腈的方法中，其中含有丙烯腈和杂质的氨氧化反应器流出物在骤冷系统中与水性骤冷液接触，其改进包括从骤冷系统的塔顶流中冷凝液体的步骤; 以及在将蒸馏塔中的液体处理之前将冷凝的液体再循环到淬火系统中。 在纯化丙烯腈的方法中，其中含有丙烯腈和杂质的氨氧化反应器流出物在骤冷系统中与水性骤冷液接触，其改进包括将来自骤冷系统的顶部物流的液体从吸收塔中冷凝的步骤; 并将一部分冷凝液体再循环到骤冷系统。 在纯化丙烯腈的方法中，其中含有丙烯腈和杂质的氨氧化反应器流出物在骤冷系统中与水性骤冷液体接触，其改进包括将来自骤冷系统的顶部物流的液体在部分冷凝器中冷凝的步骤; 并将一部分冷凝液体再循环到骤冷系统。