International Journal of Frontiers in Engineering Technology, 2021, 3(7); doi: 10.25236/IJFET.2021.030707.
Shengwei Song1, Shasha Guan2, Wenjie Yuan3
1School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan, Hubei, 430205, China
2School of Computer Science and Engineering, Wuhan Institute of Technology, Wuhan, Hubei, 430205, China
3School of Electrical and Infomation Engineering, Wuhan Institute of Technology, Wuhan, Hubei, 430205, China
In this paper, the effects of catalyst combination and temperature on the preparation of C4 olefins by ethanol coupling were studied. Firstly, using Spearman correlation coefficient, it is found that there is a strong correlation between temperature and ethanol conversion and temperature and C4 olefin selectivity under most catalyst combinations. With the increase of time, the ethanol conversion showed a downward trend, and the ethylene selectivity gradually tended to be flat. The number of the experimental catalyst combination was A1 calculated by European distance method. Finally, the regression model is established by OLS, and the multiple regression model is obtained by using the method of "OLS + robust standard error". It was found that ethanol concentration had the greatest effect on ethanol conversion and temperature had the greatest effect on C4 olefin selectivity.
Spearman correlation coefficient, multiple regression analysis
Shengwei Song, Shasha Guan, Wenjie Yuan. Research on C4 Olefins Prepared by Ethanol Coupling. International Journal of Frontiers in Engineering Technology (2021), Vol. 3, Issue 7: 38-43. https://doi.org/10.25236/IJFET.2021.030707.
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