化工新型材料

化工新型材料 ›› 2020, Vol. 48 ›› Issue (3) : 232-235.

开发与应用

掺杂镧的固体碱MgO/SBA-15催化大豆油制备生物柴油

黄振旭, 陈凌霞, 王潘婷, 李颖欣, 贾潘潘, 张文慧

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Study on La-doped MgO/SBA-15 solid base catalyst for transesterification of soybean oil to biodiesel

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Received		Published
2019-09-02		2020-03-20
Issue Date	Revised Date
2020-04-02	2019-09-02

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摘要

采用浸渍法制备了掺杂镧的固体碱MgO/SBA-15催化剂,将其用于大豆油酯交换制备生物柴油的反应。XRD表征结果显示,活性组分在载体SiO₂骨架中高度分散。考察了不同镧镁物质的量比、焙烧温度和催化剂用量等因素对催化剂性能的影响,发现镧的引入有利于催化剂与反应物的接触,从而提高催化剂的活性;镧和镁物质的量之比为0.5∶1,催化剂焙烧温度700℃,焙烧时间3h,催化剂质量分数为3%,反应时间3h时,生物柴油的产率达到95%以上。

Abstract

The La-doped MgO/SBA-15 solid base catalysts were prepared by the immersion method and used in the transesterification of soybean oil with methanol.The catalysts were characterized by XRD.XRD showed that the active components were highly dispersed on the silica skeleton.The effects of the different La/Mg molar ratio,calcination temperature and catalyst dosage were investigated.The adding of lanthanum promoted that catalysts had higher activity.The results indicated that La/Mg molar ratio of 0.5∶1,the calcination temperature of 700℃,the calcination time of 3h,the mass ratio of catalyst to oil of 3%,reaction time of 3h,and the biodiesel yield can reach up to 95%.

关键词

掺杂镧 / 生物柴油 / 固体碱 / MgO/SBA-15

Key words

La-doping / biodiesel / solid base / MgO/SBA-15

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黄振旭, 陈凌霞, 王潘婷, 李颖欣, 贾潘潘, 张文慧. 掺杂镧的固体碱MgO/SBA-15催化大豆油制备生物柴油[J]. 化工新型材料, 2020, 48(3): 232-235 DOI:

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