New technique of biodiesel preparation catalyzed by KOH/ZrO<sub>2</sub>

HUANG Zhendong; WANG Rui; YU Meiqing

doi:10.11949/j.issn.0438-1157.20161582

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New technique of biodiesel preparation catalyzed by KOH/ZrO₂

更新时间：2025-11-26

- New technique of biodiesel preparation catalyzed by KOH/ZrO₂
- CIESC Journal Issue S2, Pages: 176-183(2016)
- 作者机构：
  
  1. 山东大学深圳研究院,广东,深圳,518057
  2. 山东大学环境科学与工程学院,山东,济南,250199
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161582
  CLC： TQ032.4}
- Online First：30 December 2016，
  
  Published：30 December 2016
- 稿件说明：
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HUANG Zhendong, WANG Rui, YU Meiqing. New technique of biodiesel preparation catalyzed by KOH/ZrO₂[J]. CIESC Journal, 2016, (S2): 176-183. DOI: 10.11949/j.issn.0438-1157.20161582.
DOI：

HUANG Zhendong, WANG Rui, YU Meiqing. New technique of biodiesel preparation catalyzed by KOH/ZrO₂[J]. CIESC Journal, 2016, (S2): 176-183. DOI: 10.11949/j.issn.0438-1157.20161582. DOI：

摘要

采用浸渍法，将KOH负载在新型载体氧化锆上，通过高温煅烧得到了固体碱催化剂。探讨了制备条件对催化剂催化酯交换反应活性的影响，获得了催化剂的最佳制备条件，以大豆油和甲醇为原料研究并优化了催化酯交换反应制备生物柴油的工艺条件。结果表明，固体碱催化剂KOH/ZrO2的最佳制备条件为：KOH负载量20%，煅烧温度600℃，煅烧时间2 h。固体碱催化剂催化酯交换反应的最优反应条件为：醇油比9：1，反应温度75℃，反应时间3 h，催化剂用量4.0%。各因素对产率影响的大小为：醇油摩尔比 > 反应温度 > 反应时间 > 催化剂用量。

Abstract

The solid base catalyst KOH/ZrO2was prepared by impregnation method

in which KOH was loaded onto a new support

ZrO2

and followed by drying and high temperature calcinations.The catalyst was characterized by XRD

TGA-DSC and FT-IR respectively.The results show that KOH has been loaded on ZrO2 successfully

which can be proved by the appearance of coordinated hydroxyls on the surface of ZrO2.However

the crystal structure of KOH/ZrO2 does not change significantly when compared with the structure of carrier.The preparation conditions for catalysts of different loading amount were determined via transesterification reaction.The optimal preparation conditions are as follows:loading amount of KOH 20%

calcination temperature 600℃

calcination time 2 h.The solid base catalyst KOH/ZrO2 was applied in catalyzing the transesterification of soybean oil with methanol

and the maximum yield of biodiesel can be higher than 90%.The influence of the reaction variables on the conversion was also investigated

and the optimal reaction conditions are as follows:reaction temperature 75℃

oil/methanol molar ratio 9:1

reaction time 3 h

catalyst dosage 4.0%(mass).

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New technique of biodiesel preparation catalyzed by KOH/ZrO2

DOI：10.11949/j.issn.0438-1157.20161582

摘要

Abstract

关键词

Keywords

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New technique of biodiesel preparation catalyzed by KOH/ZrO₂