Optimization of Basicity of KF/Ca-MgO Catalyst by Impregnation Method

*Didi Dwi Anggoro -  Department of Chemical Engineering, Diponegoro University, Indonesia
Luqman Buchori -  Department of Chemical Engineering, Diponegoro University, Indonesia
Setia Budi Sasongko -  Department of Chemical Engineering, Diponegoro University, Indonesia
Herawati Oktavianty -  Department of Chemical Engineering, Diponegoro University, Indonesia
Received: 25 Jan 2019; Revised: 11 May 2019; Accepted: 20 May 2019; Published: 1 Dec 2019; Available online: 1 Jul 2019.
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Section: The 3rd International Conference on Chemical and Material Engineering 2018 (ICCME 2018)
Language: EN
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Abstract

This study was analyzed the basicity of KF/Ca-MgO catalyst. KF/Ca-MgO catalyst was prepared using impregnation method by adding 2-4%w KF as support into Ca-MgO catalyst, at 4500C-5500C calcination temperature and 2-4 hours calcination time. The basicity of KF/Ca-MgO catalyst then analyzed using Tanabe titration method. By using Analysis of Variance (ANOVA), showed that the higher basicity of KF/Ca-MgO catalyst, X1 factor is the most significant factor, indicating with high F-value (16,46213) and low p-value (0,006670). Objective function from these tests is used to determine the optimum value between calcination temperature (X1), calcination time (X2) and weight KF (X3). The correlation between each operating variables and the responses is shown in mathematical equation: Y = 1,05699 + 0,13766 X1 – 0,21133 X12 + 0,07788 X2 – 0,02041 X22 + 0,12708 X2 – 0,02395 X32 – 0,0775 X1 X2– 0,0225 X1 X3 + 0,0675 X2 X3. The optimization value can be estimated by limiting the calcination temperature in the range 415,910C to 584,090C, the calcination time in the range of 1,3182 hours to 4,6818 hours, and the weight KF in the range of 1,3182% to 4,6818% that obtained 1,18 mmol/g for the optimal catalyst basicity.

Keywords
KF/Ca-MgO catalyst; Basicity; Optimization

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