壳灰固体碱催化剂的制备及其催化桐油甲酯化

doi:10.3969/j.issn.0253-2417.2017.04.011

Abstract

Abstract: Solid catalyst added with tung shell ash(KOH-TSA-Al₂O₃) was prepared using Al₂O₃ and KOH as raw materials. The catalyst was used in the process of methyl esterification of tung oil. Its catalysis efficiency was analyzed. Effects of KOH dosage, sintering temperature and tung shell ash dosage on the conversion efficiency of tung oil were studied with the solo conditions experiment and orthogonal design. The final results showed that the efficiency of methyl esterification catalyzed by the optimized solid catalyst was up to 76.34%, under the conditions of 6 g KOH, 4 g Al₂O₃, 3 g tung shell ash, and 700℃ for 10 h. The prepared catalyst was analyzed with alkalinity detected, scanning electron microscope (SEM) and X-ray diffraction (XRD). The results showed that the surface catalyst was like tree branch and new phase of CaO, MgO and SiO₂ was generated. Compared with 0^# diesel standard in China, the biodiesel prepared under the catalyst was showed better quality.

Key words: solid catalyst, tung shell ash, methyl esterification, tung oil

CLC Number:

TQ35

LIU Wenzhu, TANG Kehua, LI Shuo. Prepration of Solid Base Catalyst Added with Tung Shell Ash and Its Application in Methyl Esterification of Tung Oil[J]. Chemistry and Industry of Forest Products, 2017, 37(4): 73-80.

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Prepration of Solid Base Catalyst Added with Tung Shell Ash and Its Application in Methyl Esterification of Tung Oil

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