引用本文:
曹崇江, 刘晓庚, 周国信. 固体酸预处理高酸值油脂降低酸值[J]. 应用化学,
2008, 25(5): 613-616.
Citation: CAO Chong-Jiang, LIU Xiao-Geng, ZHOU Guo-Xin. Esterification Pretreatment of High Acid Value Oil With Solid Acid Catalysts[J]. Chinese Journal of Applied Chemistry, 2008, 25(5): 613-616.
Citation: CAO Chong-Jiang, LIU Xiao-Geng, ZHOU Guo-Xin. Esterification Pretreatment of High Acid Value Oil With Solid Acid Catalysts[J]. Chinese Journal of Applied Chemistry, 2008, 25(5): 613-616.
固体酸预处理高酸值油脂降低酸值
English
Esterification Pretreatment of High Acid Value Oil With Solid Acid Catalysts
Abstract:
Gallium- and aluminum-promoted sulfated zirconia catalysts were prepared by hydrolysis,digestion,wetness impregnation and calcination.The surface acid properties of these catalysts were studied.The high acid value oil was pretreated by esterification on these promoted catalysts.The effects of calcining temperature,molar ratio of methanol to oil were analyzed.The experiment results show that these catalysts exhibit excellent catalytic activities.Under the following conditions:methanol/oil mole ratio 30,amount of catalyst 4%,reaction time 8 h,reaction temperature 67℃,the esterification rate on Ga2O3/SO42-/ZrO2 calicined at 600℃ was the highest and the acid value of oil decreased to 4.1,which had a good effect on producing biodiesel by transesterification in the presence of alkaline catalyst.
-
Key words:
- solid acid
- / pretreatment
- / esterification
-
-
扫一扫看文章
计量
- PDF下载量: 0
- 文章访问数: 0
- HTML全文浏览量: 0
下载:
