长链脂肪醇酯化工艺热安全风险研究与安全工艺优化  

Improvements to Long Chain Fatty Alcohol Esterification and Risk Assessment of Thermal Safety

作　　者：王晓飞 桂雪峰 林树东[1,2,3] 赵吉合 胡继文 WANG Xiao-fei;GUI Xue-feng;LIN Shu-dong;ZHAO Ji-he;HU Ji-wen(Guangzhou Institute of Chemistry,Chinese Academy of Sciences,CAS Engineering Laboratory for Special Fine Chemicals,Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics,Guangzhou 510650,China;CASH GCC Shaoguan Research Institute of Advanced Materials,Incubator of Nanxiong CAS Co.,Ltd.,Nanxiong 512400,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院广州化学研究所、中国科学院新型特种精细化学品工程实验室、广东省电子有机聚合物材料重点实验室,广东广州510650 [2]国科广化韶关新材料研究院、南雄中科院孵化器运营有限公司,广东南雄512400 [3]中国科学院大学,北京100049

出　　处：《纤维素科学与技术》2023年第1期23-33,共11页Journal of Cellulose Science and Technology

基　　金：国家自然科学基金(21404121);广州市科技计划重点项目(201904020019)。

摘　　要：以长链脂肪醇和氨基磺酸酯化反应为研究对象,使用反应量热仪(RC1mx)和绝热加速量热仪(ARC)获得工艺一的绝热温升、失控体系可能达到的最高温度等热数据,风险评估工艺一反应风险等级为4级。利用实时原位红外光谱仪(ReactIR)对比了不同加料方式和反应温度,获得改进工艺,改进工艺的反应温度提高至130℃,氨基磺酸一次性改为分四次等量投料。改进工艺的反应风险等级为2级,安全性显著提高,可投入工业化生产。In this article,esterification of long chain fatty alcohol and sulfamic acid was selected as the research object,and thermal data including adiabatic temperature rise and possible maximum temperature of runaway system were obtained by reaction calorimeter(RC1mx)and accelerating rate calorimeter(ARC).The reaction risk level of the original process was level 4 for risk assessment.Real-time in situ infrared spectrometer(ReactIR)was used to compare the difference of feeding methods and reaction temperatures,so as to deeply investigate the safety improved process.The reaction temperature of the improved process was increased to 130℃,and the feeding method of sulfamic acid was changed from one-time feeding to four-time feeding with equal amount.The reaction risk level of the improved process is decreased to level 2,thus the safety is significantly improved,and it can be put into industrial production.

关 键 词：酯化工艺 反应量热仪 在线红外 反应安全风险评估 工艺优化 

分 类 号：O621.3[理学—有机化学]