阅读说明：本技术 通过双效蒸馏提纯丙酮/水混合物的方法和装置 (Method and device for purifying acetone/water mixtures by means of double-effect distillation ) 是由 安德烈亚斯·亨梅尔 托马斯·克鲁姆赖 于 2018-04-26 设计创作，主要内容包括：本发明涉及从丙酮/水混合物分离丙酮的方法,根据该方法,在在正压力下操作的柱中浓缩丙酮/水混合物的部分流以便获得具有至少80重量％丙酮浓度的产品,并且在在常压下操作的柱中浓缩丙酮/水混合物的部分流。从在正压力下操作的柱而来的顶部产品用于经由热交换器而加热在常压下操作的柱的底部产品,并且顶部产品随后在丙酮/水混合物的部分流的供给位置上方被引入到在常压下操作的柱中。该方法允许显著地降低丙酮分离的比能需求,由此呈现显著的成本优势。本发明还涉及实施这种方法的装置。(The invention relates to a method for separating acetone from an acetone/water mixture, according to which a partial stream of the acetone/water mixture is concentrated in a column operated under positive pressure in order to obtain a product having an acetone concentration of at least 80% by weight, and a partial stream of the acetone/water mixture is concentrated in a column operated at normal pressure. The top product from the column operating under positive pressure is used to heat the bottom product of the column operating under normal pressure via a heat exchanger, and the top product is subsequently introduced into the column operating under normal pressure above the feed point of the partial stream of the acetone/water mixture. This process allows for a significant reduction in the specific energy requirements for acetone separation, thereby presenting a significant cost advantage. The invention also relates to a device for carrying out said method.)