Appendix 4

An Illustration of HAZOP Study for a Batch Operation

Abstract

A detailed description of all the stages of a HAZOP study of a batch operation, illustrated for a reaction stage of a multistep process. The company, site, and process are described, and general process data provided including the appropriate P&ID. A full description and design intention is given for the selected node. A detailed report from the HAZOP study is provided.

Keywords

Batch HAZOP; sequential HAZOP; reaction step; process description; P&ID, HAZOP report.

A4.1 Introduction

This example illustrates the following aspects of a HAZOP study:

• an overall description of the plant and process;

• the selection of the stages of the process for study;

• a list of the documentation ...

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