微混合与微反应技术在提升化工安全中的应用

发布时间：2018-03-22 10:54

本文选题：微反应器　切入点：传热　出处：《化工进展》2017年08期 　论文类型：期刊论文

【摘要】：现代化工的发展对工艺过程的安全性提出了更高的要求,也为在反应安全性上具有独特优势的微化工技术提供了机遇。本文从微通道内流体流动特点出发,解释了特征尺度微型化导致的通道内传递效率、流动行为的变化,同时选取有代表性的文献结果和应用实例,分析了微化工技术在提升工工艺本质安全性方面的作用,并将其归纳为3个方面:传热传质的强化能够迅速移除反应放热并保证物料浓度的均匀分布;对危险物料的约束作用能够减少有毒、不稳定物质的暴露风险和易燃物质的燃爆风险;对苛刻条件的耐受性能够保证反应在高温高压条件下安全进行。最后,本文从微化工技术面临的制造成本高、平行分配难和催化剂担载方式的创新3个挑战出发,对其应用前景作出了展望。
[Abstract]:The development of modern chemical industry has put forward higher requirements for the safety of the process, and also provided an opportunity for the micro-chemical technology which has unique advantages in the safety of reaction. This paper explains the change of transfer efficiency and flow behavior in channels caused by characteristic scale miniaturization, and analyzes the role of micro-chemical technology in improving the essential safety of industrial processes by selecting representative literature results and application examples. It can be divided into three aspects: the enhancement of heat and mass transfer can quickly remove the reaction heat release and ensure the uniform distribution of the concentration of the material, and the restraint on the dangerous material can reduce the toxicity. The exposure risk of unstable substances and the explosion risk of flammable substances, the tolerance to harsh conditions can ensure the safety of reaction under high temperature and high pressure. Finally, the manufacturing cost of micro-chemical technology is high. There are three challenges in parallel distribution and innovation of catalyst loading mode, and the prospect of its application is prospected.
【作者单位】：中国石化安全工程研究院;
【基金】：国家自然科学基金项目(21606258)
【分类号】：TQ086

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