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首页> 外文会议>2011 International Conference on Electronics, Communications and Control >Reactions of furfural and acetic acid as model compounds for bio-oil upgrading in supercritical ethanol
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Reactions of furfural and acetic acid as model compounds for bio-oil upgrading in supercritical ethanol

机译：糠醛和乙酸作为模型化合物的反应，用于超临界乙醇中生物油的提质

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The reactions of bio-oil model compounds furfural/acetic acid were carried out using supported Nickel catalysts in supercritical ethanol at 260 °C. The catalysts were prepared through the dry impregnation method with Al2(SiO3)3, SO42-/ZrO2/SBA-15 as the solid acid supports. The textural properties of the catalysts were characterized by X-ray diffraction (XRD), Transmission Electron Microscope (TEM), and N2 temperature programmed adsorption/desorption (N2-TPD). The liquid products were analyzed by gas chromatography-mass spectroscopy (GC-MS) and the recovered catalysts were evaluated by the thermogravimetry (TG), differential thermogravimetry (DTG) after 3 hours reaction. The results indicated that acetic acid was completely removed and the amount of aldehydes decreased evidently. The reaction in supercritical ethanol under pressured H2 is the combination of several basic upgrading reactions including hydrodeoxygenation, hydrogenation, catalytic cracking, esterification, and rearrangement. Based on the products analysis, reaction pathway for furfural conversion was discussed in this work
机译：生物油模型化合物糠醛/乙酸的反应是使用负载的镍催化剂在260°C的超临界乙醇中进行的。以Al2（SiO3）3，SO42- / ZrO2 / SBA-15为固体酸载体，通过干法浸渍法制备了催化剂。通过X射线衍射（XRD），透射电子显微镜（TEM）和N2程序升温吸附/解吸（N2-TPD）表征了催化剂的质构性质。反应3小时后，通过气相色谱-质谱法（GC-MS）分析液体产物，并通过热重法（TG），差示热重法（DTG）评价回收的催化剂。结果表明，乙酸被完全去除，醛的含量明显减少。在H 2 压力下在超临界乙醇中进行的反应是包括加氢脱氧，氢化，催化裂化，酯化和重排在内的几个基本提质反应的组合。在产物分析的基础上，探讨了糠醛转化的反应途径。

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