SBA-15的改性及催化文冠果油制备生物柴油

化工进展

SBA-15的改性及催化文冠果油制备生物柴油

柳杨1，2，衣怀峰3，陈宇1，2，吴玉龙2，陈曾1，杨明德2，童军茂1

1石河子大学食品学院，新疆石河子 832003；2清华大学核能与新能源技术研究院，北京 100084；3中国石油新疆油田公司，新疆克拉玛依 834000

出版日期:2011-06-05 发布日期:2011-06-05

Preparation of bildiesel from sorbifolia oil catalyzed by modified SBA-15

LIU Yang1，2，YI Huaifeng3，CHEN Yu1，2，WU Yulong2，CHEN Zeng1，YANG Mingde2，TONG Junmao1

1Food College，Shihezi University，Shihezi 832003，Xinjiang，China；2 Institute of Nuclear and New Energy Technology，Tsinghua University，Beijing 100084，China；3Xinjiang Oilfield Company，Petrochina Karamay 834000，Xinjiang，China

Online:2011-06-05 Published:2011-06-05

摘要/Abstract

摘要：

以介孔分子筛SBA-15为载体，采用直接合成法和后合成法镀饰Al后再负载碱金属盐KNO₃，制得负载型固体碱催化剂KNO₃-AlSBA-15和KNO₃-Al-SBA-15。用XRD、BET、SEM以及CO₂-TPD对催化剂进行表征。结果表明：在SBA-15上镀饰Al可以保护分子筛的介孔结构；进一步负载KNO₃，能够增强催化剂的碱性。将其应用于催化文冠果油酯交换制备生物柴油，结果显示催化剂KNO₃-Al-SBA-15的催化活性最好，优于传统均相催化剂，所得生物柴油产率可达92%，重复使用多次仍具有较好的催化效果。

Abstract:

The supported solid base catalysts KNO₃-AlSBA-15 and KNO₃-Al-SBA-15，was prepated with mesoporous molecular sieve SBA-15 as carrier，and was loaded with Al and with alkali metal salts KNO₃ by direct synthesis and post synthesis respectively. The catalysts were characterized by means of XRD，BET，SEM and CO₂-TPD. The result showed that addition of Al had a good protection on the pore structure of catalyst. The alkalinity of catalyst was enhanced significantly after loading KNO₃. The transesterification reaction process of sorbifolia oil with the catalyst for biodiesel preparation indicated that KNO₃-Al-SBA-15 showed better catalytic activity than traditional catalysts. The biodiesel yield could reach 92%，and this catalyst also showed steady catalytic activity after being reused for many times.

柳杨1，2，衣怀峰3，陈宇1，2，吴玉龙2，陈曾1，杨明德2，童军茂1. SBA-15的改性及催化文冠果油制备生物柴油 [J]. 化工进展.

LIU Yang1，2，YI Huaifeng3，CHEN Yu1，2，WU Yulong2，CHEN Zeng1，YANG Mingde2，TONG Junmao1. Preparation of bildiesel from sorbifolia oil catalyzed by modified SBA-15[J]. Chemical Industry and Engineering Progree.