An application of neuro-fuzzy technology for analysis of the CO2 capture process

Authors:
Qing Zhou;Christine W. Chan;Paitoon Tontiwachwuthikul
Affiliations:
Energy Informatics Laboratory, Faculty of Engineering and Applied Science, University of Regina, Regina, Saskatchewan, Canada S4S 0A2;Energy Informatics Laboratory, Faculty of Engineering and Applied Science, University of Regina, Regina, Saskatchewan, Canada S4S 0A2;Process Systems Engineering Laboratory and International Test Centre for CO2 Capture (ITC), University of Regina, Regina, Saskatchewan, Canada S4S 0A2
Venue:
Fuzzy Sets and Systems
Year:
2010

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Abstract

The objective of this paper is to study the relationships among the significant parameters impacting carbon dioxide (CO"2) production. An enhanced understanding of the intricate relationships among the process parameters enables prediction and optimization, thereby improving efficiency of the CO"2 capture process. Our work adopted a fuzzy logic approach that explores the relationships among the parameters involved in the amine-based post combustion CO"2 capture process at the International Test Centre for CO"2 Capture (ITC) located in Regina, Saskatchewan of Canada. The key process parameters were selected based on a review of relevant literature and interviews with experts. The adaptive-network-based fuzzy inference system (ANFIS) technique was trained with historical data and generated the membership functions and rules which best interpret the input/output relationships in the process. Four fuzzy inference systems were independently developed for four output parameters, each of which consists of four inputs and 144 rules. The model validation process showed that modeling accuracies of these fuzzy inference systems are within acceptable limits. The developed fuzzy inference systems constitute a knowledge base on the parameters involved in the CO"2 capture process, and can be further expanded and improved for prediction and optimization of the CO"2 capture process in the future.