MCM-41分子筛膜的制备、改性及其在酯交换反应中的应用

doi:10.3969/j.issn.0253-2417.2015.01.001

Abstract

Abstract: MCM-41 with long range ordered hexagonal mesostructures was loaded on the surface of ceramic membranes (CM) successfully by in situ synthetic method. Then, the MCM-41/CM was modified by loading SO₄^2-/ZrO₂ in order to prepare solid acid catalyst SO₄^2-/ZrO₂/MCM-41/CM. The catalytic performance of the synthesized catalyst was evaluated by transesterification using palm oil and methanolas reactants. The results showed that the SO₄^2-/ZrO₂/MCM-41/CM had good catalytic activity with Zr(NO₃)₄ solution concentration of 0.4 mol/L, H₂SO₄ solution concentration of 2 mol/L, and calcination temperature of 550 ℃. The optimal reaction conditions for transesterification were as follows: catalyst amount (active components loaded ratio) 5%, reaction time 60 min, reaction temperature 100 ℃, methanol/palm oil molar ratio 10:1. The yield of fatty acid methyl ester (FAME) is up to 92% under this condition.

Key words: MCM-41, zeolite membrane, SO₄^2-/ZrO₂, transesterification, fatty acid methyl ester (FAME)

CLC Number:

TQ35

CHEN Li-hua, LI Zun-shan, GAO Li-jing, XU Wei, XIAO Guo-min. Transesterification Performance of Acidic Group Modified Mesoporous MCM-41 Membrane[J]. Chemistry and Industry of Forest Products, 2015, 35(1): 1-8.

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Transesterification Performance of Acidic Group Modified Mesoporous MCM-41 Membrane

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