• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied biochemistry and biotechnology, Part A. enzyme engineering and biotechnology >Continuous Esterification of Free Fatty Acids in Crude Biodiesel by an Integrated Process of Supercritical Methanol and Sodium Methoxide Catalyst
【24h】

Continuous Esterification of Free Fatty Acids in Crude Biodiesel by an Integrated Process of Supercritical Methanol and Sodium Methoxide Catalyst

机译：超临界甲醇和甲醇钠催化剂的集成工艺对生物柴油中的游离脂肪酸进行连续酯化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An integrated process of supercritical methanol (SCM) and sodium methoxide catalyst was developed to produce fatty acid methyl esters (FAMEs) via continuous esterification from crude biodiesel. The crude biodiesel with high free fatty acid (FFA) content must be refined to reduce the acid value (AV) for meeting the quality standards. The process parameters were studied by Box-Behnken design (BBD) of response surface methodology (RSM). The experimental results revealed that the AVof crude biodiesel decreased from 18.66 to 0.55 mg KOH g~(-1) at the reaction conditions of 350 ℃, 0.5 % amount of sodium methoxide catalyst, and 10 MPa. Temperature shows the most significant effect on the esterification, followed by pressure and amount of sodium methoxide catalyst. This integrated process proved to be a potential route to refine the crude biodiesel because of its continuity, high efficiency, and less energy consumption with relatively moderate reaction conditions compared with conventional methods.
机译：开发了超临界甲醇（SCM）和甲醇钠催化剂的集成工艺，以通过从粗生物柴油中连续酯化生产脂肪酸甲酯（FAME）。必须精制具有高游离脂肪酸（FFA）含量的粗制生物柴油，以降低酸值（AV）以满足质量标准。通过响应面方法（RSM）的Box-Behnken设计（BBD）研究了工艺参数。实验结果表明，在350℃，0.5％甲醇钠催化剂和10 MPa的反应条件下，粗生物柴油的AV值从18.66降至0.55 mg KOH g〜（-1）。温度显示出对酯化作用最显着的影响，其次是压力和甲醇钠催化剂的量。与常规方法相比，该集成过程被证明是提炼粗生物柴油的潜在途径，因为它具有相对适度的反应条件，且具有连续性，高效率和较低的能耗。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号