Process safety assessment of semibatch nitration of naphthalene with mixed acid to 1‐nitronaphthalene. Issue 7 (13th March 2022)

• Record Type: Journal Article
• Authors: Liang, Jun; Ni, Lei; Wu, Peihong; Yao, Hang; Chen, Qiang; Fu, Gang; Jiang, Juncheng
• Is Part Of: AIChE journal. Volume 68:Issue 7(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-03-13
• Subjects: expanded Stoessel criticality diagram -- kinetics study -- nitration reactions -- process safety assessment -- thermal behavior; Chemical engineering -- Periodicals; Génie chimique -- Périodiques; 660.28
• DOI: 10.1002/aic.17679
• Languages: English
• ISSNs: 0001-1541

Abstract

Abstract: In this study, different calorimetric and analytical techniques were used to evaluate the thermal behavior of the preparation of 1‐nitronaphthalene through the nitration of naphthalene with mixed acid. Differential scanning calorimetry and adiabatic calorimetry revealed that 1‐nitronaphthalene lacks thermal decomposition characteristics. The results of reaction calorimetry, high‐performance liquid chromatography, and the density function theory method were combined to analyze the reaction mechanism. An expanded Stoessel criticality diagram was developed to evaluate the process safety of the semibatch nitration reaction. The results revealed a higher degree of risk than that obtained when using the traditional Stoessel criticality diagram. Kinetics parameters of the reaction were investigated.