Fluid Property Reasoning for Automated HAZOP

摘要

The study of serious accidents, which have occurred in the chemical process industry in recent times, highlights the need to understand fluid property related phenomena and the interactions between chemicals under abnormal process conditions or with abnormal fluid compositions. Consideration of these issues should be common practice in professional safety analysis work, and computer programs designed to support this work have to be able to deal with them. A novel methodology for fluid property reasoning in connection to knowledge-based Hazard and Operability (HAZOP) study is described. A rule-based fluid property and reaction property reasoning system was created for use in the HA-ZOPTOOL program. Separately, the fault propagation reasoning methodology implemented in the AutoHAZID HAZOP emulation program was extended with fluid property reasoning capabilities.