Process Intensification for the Recovery of Hydrogen Cyanide in the Andrussow Process

被引：0

作者：

Lehrich, Luca ^{[1
]}

Adiche, Chafika ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Dept Mech Engn, Thermal Proc Engn Grp, Otto Berndt Str 2, D-64287 Darmstadt, Germany

来源：

CHEMIE INGENIEUR TECHNIK | 2023年 / 95卷 / 10期

关键词：

Andrussow process; Cost model; Distillation process; Heat integration; Organonitrile contaminants; Process intensification; MIXTURES;

D O I：

10.1002/cite.202200059

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The aim of this work was to determine a cost-optimal design of the distillation unit of the Andrussow process. For this purpose, a feed with a mass flow rate of 121 t h(-1) and a concentration of ca. 2 wt % hydrogen cyanide (HCN) was considered. An approach for a cost-optimal process intensification was developed with the goal to achieve the desired product qualities, while minimizing the organonitrile accumulation in the column. For this purpose, the simple distillation column of the established cost-optimal design of the base case was extended to a configuration with a side stripper with taking into consideration heat integration in the process. It was found that this new configuration allows a much smaller accumulation of organonitriles in the main column; reducing thereby the operation issues of the process while decreasing considerably the total annual cost of the distillation unit by 61 % as compared to that of the base case design.

引用

页码：1580 / 1591

页数：12