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Process safety assessment of semibatch nitration of naphthalene with mixed acid to 1-nitronaphthalene
  • +4
  • Jun Liang,
  • Lei Ni,
  • Peihong Wu,
  • Hang Yao,
  • Qiang Chen,
  • Gang Fu,
  • Juncheng Jiang
Lei Ni
Nanjing Tech University
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Peihong Wu
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Qiang Chen
Nanjing Tech University
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Gang Fu
Nanjing Tech University
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Juncheng Jiang
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Abstract

In this study, different calorimetric and analytical techniques were used to evaluate the thermal behaviour 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 analyse 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.

Peer review status:IN REVISION

26 May 2021Submitted to AIChE Journal
01 Jun 2021Assigned to Editor
01 Jun 2021Submission Checks Completed
13 Jun 2021Reviewer(s) Assigned
22 Sep 2021Editorial Decision: Revise Major