基于灰色层次分析理论的烟气脱硫技术评价方法

将灰色关联及层次分析法引入烟气脱硫技术综合评价，探讨了从技术、经济、环保3个方面综合评价和优选烟气脱硫技术的方法和过程。通过建立完整的灰色评判模型，选取有代表性的灰色评判对象集及评判对象因素集，确定最优指标集，以邓聚龙先生提出的灰色关联分析法计算各参评对象与最优指标集的各因素关联系数，用层次分析法（AHP）确定权重系数，然后通过加权求和完成灰色综合评判，最后根据最大关联度原则选定最优烟气脱硫技术方案。并以典型的6种烟气脱硫技术为例进行了实际计算，给出了评价结果。为相关人员比较和评价不同的烟气脱硫技术提供一种新的思路和方法。

Grey Method with Use of an Analytic Hierarchy Process for Performance Evaluation of Flue Gas Desulfurization Technology

A grey synthetic decision-making system with use of an analytic hierarchy process (AHP) is introduced to evaluate the performance of flue gas desulfurization technology (FGDT) from three main aspects, which were technology property, economy and environmental performance. The evaluation process is carried out as follows: integrative grey evaluation model is founded, representative grey evaluation object set and evaluation object factor set are chosen, a certain reference sequence comprising the best value of each evaluation factor is determined, grey relational coefficients are confirmed by Professor Deng Julong's grey relation analysis method, the factor weight is calculated by the AHP for improving the reliability and objectivity of the evaluation results, and then the comprehensive evaluation index of each FGDT can be gotten by taking into account all factor values of the same technology with the help of summation with weighted method, finally, according to the rule of maximum grey relational grade, the best technology of flue gas desulfurization for a specially conditioned case is then obtained. As an example, six kinds of representative FGDT are compared and evaluated. The result shows that this method is of high precision and can provide a reliable footing for the selection of FGDT.