| 亚临界甲醇相Hβ分子筛催化制备生物柴油 |
| |
| 引用本文： | 盖玉娟,战风涛,吕志凤,司荣,陈敏,王英.亚临界甲醇相Hβ分子筛催化制备生物柴油[J].精细石油化工,2009,26(2). |
| |
| 作者姓名： | 盖玉娟 战风涛 吕志凤 司荣 陈敏 王英 |
| |
| 作者单位： | 1. 中国石油大学化学化工学院,山东,青岛,266555
2. 山东煤田地质局,山东,泰安,271000 |
| |
| 摘 要： | 研究了在亚临界甲醇相Hβ分子筛催化酯交换反应制备生物柴油的反应条件。结果表明,在n(甲醇): n(油脂)=12.5:1、催化剂用量为油脂质量的5%、反应温度300℃、反应时间2 h条件下,收率92.8%。为了在低醇油摩尔比时获得较高生物柴油收率,在第1次酯交换结束后,分出甘油,再加入甲醇继续进行第2次酯交换反应。在相同条件下,两次酯交换反应制备生物柴油的收率均高达98%。
|
| 关 键 词： | 生物柴油 酯交换反应 Hβ分子筛 亚临界 |
BIODIESEL PREPARATION BY SOLID ACID CATALYST UNDER METHANOL SUBCRITICAL CONDITIONS |
| |
| Gai Yujuan,Zhan Fengtao,Lü Zhifeng,Si Rong,Chen Min,Wang Ying.BIODIESEL PREPARATION BY SOLID ACID CATALYST UNDER METHANOL SUBCRITICAL CONDITIONS[J].Speciality Petrochemicals,2009,26(2). |
| |
| Authors: | Gai Yujuan Zhan Fengtao Lü Zhifeng Si Rong Chen Min Wang Ying |
| |
| Abstract: | A solid acid catalyst was evaluated in the esterification/transesterification of fatty oil with methanol.The one-step acid-catalyzed transesterification by Hβzeolite catalyst under methanol subcritical conditions was investigated.Biodiesel with the best yield of 92.8%was obtained at methanol/ oil molar ratio of 12.5:1;Hβzeolite catalyst concentration(based on the weight of fatty oil) of 5%; reaction temperature 300℃and reaction time 2.0 h.To reduce the methanol/oil molar ratio remarkably, glycerin was separated and the oils were transesterified continuously,which is called di-transes-terification. The results showed that 98%yield of biodiesel in the di-transesterification could be achieved. |
| |
| Keywords: | biodiesel transesterification Hβ zeolite catalyst methanol subcritical |
| 本文献已被 万方数据 等数据库收录！ |
|
