中北大学学报（自然科学版）2025，Vol.46Issue(1)：116-123,8.DOI:10.62756/jnuc.issn.1673-3193.2024.01.0020
丁二烯氢氰化法制3-戊烯腈工段的模拟
Simulation of Process for Preparation 3-Pentenenitrile by Butadiene Hydrocyanation
摘要
Abstract
Adiponitrile(ADN)is an important organic chemical material with a wide range of uses,and as a raw material to produce nylon-66,the demand is growingg rapidly.Butadiene(BD)hydrocyanation is the most advanced method among the existing production technologies,and the BD hydrocyanation process for ADN production is divided into three stages:the primary hydrocyanation stage,the isomerization stage,and the secondary hydrocyanation stage.In the primary hudrocyanation stage,HCN not only leads to catalyst poisoning,but also easy to polymerize under certain conditions,and leads to clogging of pipelines.Removing HCN first will help to avoid the clogging of pipelines and equipment caused by HCN polymerization.Based on the original process,a stripper was added to recover HCN.Combined with the experimental data of 3-pentenenitrile(3-PN)prepared by BD method,the main reaction kinetic model was deduced to calculate the reactor volume,and the reactor kettle was changed from a single kettle to three kettles in parallel.The simulation software Aspen PlusV 11 was used to simulate the primary hydrocyanide stage process before and after the improvement,respectively,and the NRTL activity coefficient model was selected to calculate the physical property,and the simulation run results were searchable and converged.The results show that the HCN conversion rate of 98%is basically consistent with the actual conversion rate of 98.5%,indicating that the kinetic reactor model is credible.The mass fraction of HCN in the isomerization and secondary hydro-cyanation stage is 0,which meets the requirements of the process design,and indicates that it is reasonable to increase the stripper in the original process.关键词
HCN/3-PN/己二腈/Aspen Plus/丁二烯氢氰化法Key words
HCN/3-PN/adiponitrile/Aspen Plus/butadiene hydrocyanation分类
化学化工引用本文复制引用
董婷,殷玉娇,李娜,王艳红,郭婧,韩兴华..丁二烯氢氰化法制3-戊烯腈工段的模拟[J].中北大学学报（自然科学版）,2025,46(1):116-123,8.基金项目
山西省高等学校教学改革创新项目(J20220644) （J20220644）
中北大学校基金资助项目(110121) （110121）
