Physical explosion analysis in heat exchanger network design

International Conference on Chemical and Bioprocess Engineering

地球科学;化学;生物科学

Pasha, M.^1 ; Zaini, D.^1 ; Shariff, A.M.^1

Centre for Advance Process Safety (CAPS), Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar, Perak

32610, Malaysia^1

关键词: Chemical process industry;    Early design stages;    Heat exchanger network;    Loss of containment;    Preliminary design;    Shell and tube heat exchangers;    Shift Conversion;    Simulation platform;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/36/1/012005/pdf
DOI  :  10.1088/1755-1315/36/1/012005

学科分类：生物科学（综合）

来源: IOP

【 摘 要 】

The failure of shell and tube heat exchangers is being extensively experienced by the chemical process industries. This failure can create a loss of production for long time duration. Moreover, loss of containment through heat exchanger could potentially lead to a credible event such as fire, explosion and toxic release. There is a need to analyse the possible worst case effect originated from the loss of containment of the heat exchanger at the early design stage. Physical explosion analysis during the heat exchanger network design is presented in this work. Baker and Prugh explosion models are deployed for assessing the explosion effect. Microsoft Excel integrated with process design simulator through object linking and embedded (OLE) automation for this analysis. Aspen HYSYS V (8.0) used as a simulation platform in this work. A typical heat exchanger network of steam reforming and shift conversion process was presented as a case study. It is investigated from this analysis that overpressure generated from the physical explosion of each heat exchanger can be estimated in a more precise manner by using Prugh model. The present work could potentially assist the design engineer to identify the critical heat exchanger in the network at the preliminary design stage.