Preparation of rare earth modified clay-based solid acid catalysts and their application for biodiesel production from soybean oil

被引：0

作者：

Ding, Lijun ^{[1
,2
]}

Li, Kaiquan ^{[1
]}

Chen, Jing ^{[1
]}

Hao, Yinan ^{[3
,4
]}

Hai, Bo ^{[1
,5
]}

机构：

[1] Inner Mongolia Agr Univ, Coll Sci, Hohhot, Peoples R China

[2] Univ Inner Mongolia Autonomous, Dept Educ Inner Mongolia Autonomous Reg, Key Lab Agr Ecol Secur & Green Dev, Hohhot, Peoples R China

[3] Inner Mongolia Agr Univ, Coll Mat Sci & Art Design, Hohhot, Peoples R China

[4] Natl Forestry Grassland Engn Technol Res Ctr Effic, State Forestry & Grassland Adm, Hohhot, Peoples R China

[5] Inner Mongolia Agr Univ, Coll Sci, Hohhot 01001, Peoples R China

来源：

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS | 2023年 / 45卷 / 04期

关键词：

Biodiesel; central composite design; rare earth element; solid superacid; sulfate radical/zirconium dioxide hangjin2# clay; EFFICIENT; ESTERIFICATION;

D O I：

10.1080/15567036.2023.2271432

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In this study, catalysts of SO42-/ZrO2-La2O3-Hangjin 2# clay (SZLa-HJ) and SO42-/ZrO2-CeO2-Hangjin 2# clay (SZCe-HJ) were prepared with La and Ce as cocatalysts respectively. The activity of the catalysts was evaluated based on the conversion of biodiesel, while examining the effects of rare earth doping, sulfuric acid concentration, and calcination temperature. Central composite design optimized the preparation procedure for SZLa-HJ and SZCe-HJ. NH3-TPD, Py-FTIR, EDS, TG, DAT, SEM, XRD and XPS techniques were employed to describe it. The results showed that adding La or Ce to SO42-/ZrO2 Hangjin 2# clay effectively controlled the distribution of acid sites by increasing both Bronsted and Lewis acid sites in a way that maintained more Lewis acid sites in the catalyst; this was favorable for transesterification reaction.

引用

页码：12453 / 12473

页数：21

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