Study on Optimization of Denitration Technology Based on Gray-fuzzy Combined Comprehensive Evaluation Model

This paper establishes a combined evaluation model on the basis of Fuzzy Comprehensive Evaluation and Gray Relational Analysis. Through Fuzzy Comprehensive Evaluation it achieves the reasonable conversion from qualitative to quantitative and through Gray Relational Analysis it sets the weight of each index, which making sure that the evaluation model is scientific and rational. Then, with the combined evaluation model, it evaluates the performance of SCR, SNCR, SNCR/SCR which are relatively more mature flue gas denitrification technology. The evaluation result verifies the effectiveness and practicality of the model. And meanwhile, it could be a valuable reference for the promotion of the denitration devices and the formulation of the denitration price. At last, it provides a powerful guarantee to the power engineering construction.