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首页> 外文期刊>Energy Conversion & Management >Optimization of high free fatty acid reduction in mixed crude palm oils using circulation process through static mixer reactor and pilot-scale of two-step process
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Optimization of high free fatty acid reduction in mixed crude palm oils using circulation process through static mixer reactor and pilot-scale of two-step process

机译：通过静态混合反应器的循环过程和两步法中试规模，优化混合棕榈油中高游离脂肪酸的还原

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摘要

High free fatty acid (FFA) reduction in mixed crude palm oil (MCPO) was performed with methanol (MeOH) and sulfuric acid (H_2SO_4) as acid catalyst using the circulation process through static mixer reac­tor. In this study, the response surface methodology (RSM) was adopted to optimize the acid value in esterified oil after esterification process (first-step) in lab-scale. The results showed that acid value was reduced from 30 mgKOH g~(-1) to 2 mgKOH g~(-1), when 19.8 vol.% MeOH, 2.0 vol.% H_2SO_4, reaction tem­perature 60 ℃, 40 L h~(-1) of MCPO, 50 min reaction time, and 5-m of static mixer in length, were used in the lab-scale. This recommended condition was used to develop the pilot-scale process in which the scal­ing up of the FFA reduction from 5 L MCPO of lab-scale to 60 L MCPO of pilot-scale, which was designed on the basis of a simple operation and maintenance. In the pilot-scale process, the lower 1 mgKOH g~(-1) of acid value was achieved when it was conducted at the reaction time of 50 min. In the base-catalyzed transesterification (second-step) of pilot-scale process, the 98.65 wt.% of methyl ester purity was achieved when the following condition: 20 vol.% MeOH, 8 gKOH L~(-1) oil, and 60 min reaction time at 60 ℃, was used to produce biodiesel.
机译：使用通过静态混合反应器的循环工艺，使用甲醇（MeOH）和硫酸（H_2SO_4）作为酸催化剂，在混合粗棕榈油（MCPO）中进行高游离脂肪酸（FFA）还原。在这项研究中，采用响应面方法（RSM）在实验室规模的酯化过程（第一步）后优化酯化油中的酸值。结果表明，当19.8 vol。％MeOH，2.0 vol。％H_2SO_4，反应温度60℃，40 L h〜（）时，酸值从30 mgKOH g〜（-1）降至2 mgKOH g〜（-1）。在实验室规模中使用-1）的MCPO，50分钟的反应时间和长度为5 m的静态混合器。此推荐条件用于开发中试规模的过程，在该过程中，FFA的减少从实验室规模的5 L MCPO扩大到中试规模的60 L MCPO，这是基于简单的操作和维护而设计的。在中试规模的过程中，在50分钟的反应时间进行酸处理时，酸值降低了1 mgKOH g〜（-1）。在中规模规模生产的碱催化的酯交换反应（第二步）中，当满足以下条件时，可达到98.65 wt。％的甲酯纯度：20％（体积）的MeOH，8 gKOH L〜（-1）的油和在60℃反应60分钟，用于生产生物柴油。

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  • 来源
    《Energy Conversion & Management》 |2014年第4期|374-381|共8页
  • 作者

    Krit Somnuk; Suhdee Niseng; Gumpon Prateepchaikul;

  • 作者单位

    Department of Mechanical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand;

    Department of Mechanical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand;

    Department of Mechanical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Acid catalyst; Esterification; Circulation; Static mixer; Mixed crude palm oil;

    机译：酸催化剂;酯化;循环;静态混合器;混合棕榈油;

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