Knowledge Engineering in the domain of Carbon Dioxide Capture Process System

This paper presents knowledge engineering work for building a knowledge-based system (KBS) for the amine-based CO2 capture process system at International Test Center for CO2 capture (ITC) located in Regina, Saskatchewan of Canada. The knowledge acquisition process was conducted for building knowledge base for the CO2 capture process system. The knowledge base includes static and dynamic knowledge. The static knowledge includes the information on constructive components of the reaction instruments, fluids, and the control devices in the CO2 capture system. The dynamic knowledge specified operation tasks of the CO2 capture process system, which are expressed as the control strategies for dealing with 25 critical process parameters when a fault condition emerges. The knowledge obtained is represented in the knowledge table. In this paper, we present our work in knowledge engineering and how the knowledge table provided the foundation for developing an expert system for automatic monitoring, control, and fault diagnosis of the CO2 capture process system at ITC and for implementing the ontology for the CO2 capture process system. Keywords-knowledge engineering; ontology; knowledge-based expert system; CO2 capture