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首页> 外文期刊>Fuel >Production of biodiesel fuel from tall oil fatty acids via high temperature methanol reaction
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Production of biodiesel fuel from tall oil fatty acids via high temperature methanol reaction

机译：通过高温甲醇反应从妥尔油脂肪酸生产生物柴油燃料

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摘要

Tall oil fatty acids are a byproduct of the paper industry and consist predominantly of free-fatty acids (FFAs). Although this feedstock is ideal for biodiesel production, there has been relatively little study of its conversion to biodiesel. Thus, the purpose of this study was to investigate the high temperature reaction of methanol with tall oil at subcritical and supercritical pressures to produce fatty acid methyl esters. This study investigates the effects of mixing, pressure, temperature, and methanol to oil molecular ratio in order to determine the potential use of tall oil as a biodiesel feedstock. In this work, tall oil fatty acids were successfully reacted with supercritical and subcritical methanol in a continuous tubular reactor, resulting in a reaction that is primarily temperature dependent. Conversions at subcritical pressures of 4.2 MPa and 6.6 MPa were 81% and 75%, respectively. Pressure seemed to have little correlation to conversion in both regimes, and conversions were comparable between the two. Additionally, it was found that tall oil fatty acids react well with methanol to give comparable conversions at the relatively low molecular flow ratio of 5:1 methanol to tall oil. Both of these observations suggest that hydrolyzed tri-glycerides or free fatty acid feedstocks would make the primary high temperature biodiesel reaction and the subsequent separation and purification operations less expensive than was previously believed.
机译：妥尔油脂肪酸是造纸工业的副产品，主要由游离脂肪酸（FFA）组成。尽管这种原料非常适合生物柴油生产，但对其转化为生物柴油的研究相对较少。因此，本研究的目的是研究甲醇与妥尔油在亚临界和超临界压力下的高温反应，以生产脂肪酸甲酯。为了确定妥尔油作为生物柴油原料的潜在用途，本研究调查了混合，压力，温度以及甲醇与油的分子比的影响。在这项工作中，妥尔油脂肪酸在连续管式反应器中成功地与超临界和亚临界甲醇反应，从而导致反应主要取决于温度。在4.2 MPa和6.6 MPa的亚临界压力下的转化率分别为81％和75％。在这两种情况下，压力似乎与转化率几乎没有关联，并且两者之间的转化率相当。另外，发现妥尔油脂肪酸与甲醇很好地反应，从而以相对较低的甲醇与妥尔油的分子流量比为5：1产生相当的转化率。这些观察结果均表明，水解甘油三酸酯或游离脂肪酸原料将使主要的高温生物柴油反应以及随后的分离和纯化操作比以前认为的便宜。

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  • 来源
    《Fuel》 |2011年第11期|p.3193-3199|共7页
  • 作者

    Kristopher White; Nikki Lorenz; Tom Potts; W. Roy Penney; Robert Babcock; Amber Hardison; Elizabeth A. Canuel; Jamie A. Hestekin;

  • 作者单位

    Ralph E. Martin Dept of Chemical Engineering. University of Arkansas, Fayetteviile, AR 72701, United States;

    Ralph E. Martin Dept of Chemical Engineering. University of Arkansas, Fayetteviile, AR 72701, United States;

    Ralph E. Martin Dept of Chemical Engineering. University of Arkansas, Fayetteviile, AR 72701, United States;

    Ralph E. Martin Dept of Chemical Engineering. University of Arkansas, Fayetteviile, AR 72701, United States;

    Ralph E. Martin Dept of Chemical Engineering. University of Arkansas, Fayetteviile, AR 72701, United States;

    Virginia Institute of Marine Science, Gloucester Point, VA, United States;

    Virginia Institute of Marine Science, Gloucester Point, VA, United States;

    Ralph E. Martin Dept of Chemical Engineering. University of Arkansas, Fayetteviile, AR 72701, United States;

  • 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

    biodiesel; supercritical; tall oil;

    机译：生物柴油超临界妥尔油;

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