Preparation of C4 Olefins by Ethanol Coupling Based on Fuzzy Analytic Hierarchy Process

In this paper, the relationship between ethanol conversion and C4 olefin selectivity temperature under different catalyst combinations was analyzed. Under given combination conditions at 350 ℃, effects of reaction time on product were According to principle grey correlation degree criterion maximum minimum closeness in fuzzy mathematics, model factors affecting is established. Through solving, Co/SiO2 HAP loading ratio, Co loading, concentration obtained. Due low accuracy, finally, weight coefficients four influencing are obtained through iteration, which 0.2813, 0.2188, 0.1563 0.3438 respectively. Based analytic hierarchy process quaternion function optimization, as 200mg:200mg 1wt% 0.9ml/min 400 ℃ can make highest yield, up 41.77%.When lower than selecting 2wt% 1.68ml/min yield highest, 26.54%.