Proceedings of the 2025 7th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2025)

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Quantitative Risk Analysis of Styrene Distillation Based on HAZOP and Process Simulation

Authors
Zhiming Zhang1, Gang Tao1, 2, *, Lijing Zhang1, 2
1College of Safety and Engineering, Nanjing Tech University, Nanjing, 211816, China
2Jiangsu Key Laboratory of Intrinsic Safety and Control Technology for Hazardous Chemicals, Nanjing, 211816, China
*Corresponding author. Email: taogang@njtech.edu.cn
Corresponding Author
Gang Tao
Available Online 16 December 2025.
DOI
10.2991/978-94-6463-902-5_41How to use a DOI?
Keywords
Hazard and Operability Analysis (HAZOP); Process Simulation; Vinyl Chloride Distillation; Quantitative Risk Assessment
Abstract

To enhance the accuracy of industrial process risk assessment, a quantitative HAZOP-based analysis model was established. Traditional HAZOP analysis was integrated with the process simulation software Aspen Plus to construct a process flow model. Subsequently, sensitivity analysis was employed to simulate the impact of process parameter deviations on system performance, enabling the quantification of deviations and the determination of safe operating ranges. The results indicate that significant deviations in feed flow rate and feed temperature can lead to thermal loads in the condenser and reboiler that exceed design limits, while pressure fluctuations within a certain range have a comparatively minor impact on system stability. Compared with traditional HAZOP, the novelty of this method lies in its integration of the quantitative calculation capabilities of process simulation with the systematic risk identification of HAZOP, promoting a shift in process safety management from empirical qualitative analysis to scientific quantitative analysis.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2025 7th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2025)
Series
Advances in Engineering Research
Publication Date
16 December 2025
ISBN
978-94-6463-902-5
ISSN
2352-5401
DOI
10.2991/978-94-6463-902-5_41How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Zhiming Zhang
AU  - Gang Tao
AU  - Lijing Zhang
PY  - 2025
DA  - 2025/12/16
TI  - Quantitative Risk Analysis of Styrene Distillation Based on HAZOP and Process Simulation
BT  - Proceedings of the 2025 7th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2025)
PB  - Atlantis Press
SP  - 416
EP  - 423
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-902-5_41
DO  - 10.2991/978-94-6463-902-5_41
ID  - Zhang2025
ER  -