申请人:NIPPON SHOKUBAI CO., LTD.
公开号:EP0842685A1
公开(公告)日:1998-05-20
Reactive distillation equipment applicable to a relatively complicated reaction composed of at least two steps of equilibrium reactions, and a reactive distillation method capable of performing the reaction efficiently. Raw material feeding pipes 5, 6 and 7 are connected to a reactive distillation column 1. The raw material feeding pipes 5, 6 and 7 are disposed on different stages of the reactive distillation column 1 in this order from the top of the column downward. It is preferred that the reactive distillation column 1 includes a stage to which no raw material feeding pipe is connected between a first stage connected to the raw material feeding pipe 5 and a second stage connected to the raw material feeding pipe 6, and between the second stage and a third stage connected to the raw material feeding pipe 7. By feeding raw material (A), raw material (B) and raw material (E) from the raw material feeding pipes 5, 6 and 7, respectively, vapor-liquid contacting of raw materials (A) and (B), and vapor-liquid contacting of product (C) and raw material (E) are carried out.
反应蒸馏设备适用于由至少两步平衡反应组成的相对复杂的反应,以及能够高效进行反应的反应蒸馏方法。原料进料管道 5、6 和 7 与反应蒸馏塔 1 相连。原料进料管道 5、6 和 7 从反应蒸馏塔 1 的顶部向下依次布置在反应蒸馏塔 1 的不同阶段上。反应蒸馏塔 1 最好包括一个没有连接原料进料管的阶段,该阶段介于与原料进料管 5 连接的第一阶段和与原料进料管 6 连接的第二阶段之间,以及介于与原料进料管 7 连接的第二阶段和第三阶段之间。通过分别从原料进料管 5、6 和 7 输送原料 (A)、原料 (B) 和原料 (E),实现原料 (A) 和 (B) 的汽液接触,以及产品 (C) 和原料 (E) 的汽液接触。