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Chemical characterization of liquefaction products of an inertinite enriched northern Alaska coals

机译:富含惰质石的阿拉斯加北部煤的液化产物的化学表征

摘要

A Northern Alaskan coal rich in inertinites was further enriched by density gradient separations. The degree of condensation of the enriched coal was estimated to be low, mainly 3 ring. The reactivity of the inertinite enriched coal was determined by comparing yields from direct liquefaction with H2 at 0 and 30 minute residence times, 425°C, using an H-donor solvent in one case and moly-catalyst in the other with H2 pressures of 500 and 1000 psig respectively. Solid products were analyzed by Fourier Transform Infrared Spectroscopy while the hexane solubles were separated into various chemical classes, viz. alkanes, neutralud-- polycyclic aromatic compounds, hydroxy polycyclic aromatic oxygen heterocycles, and secondary, tertiary amino polycyclic aromatic compounds. The chemical compounds in these fractions were further analyzed byud-- gas chromatography - mass spectrometry (GC-MS)an dcapillary gas chromatography. This work confirmed earlier data showing that inertinites are not as determinental to liquefaction as previously thought.
机译:富含惰质的阿拉斯加北部煤炭通过密度梯度分离进一步富集。富煤的凝结度估计较低,主要为3环。通过比较在0和30分钟的停留时间(在425°C下)与H2直接液化的产率(一种情况下使用H供体溶剂,而另一种情况下使用H2压力为Mo的催化剂)来确定富惰质煤的反应性。和1000 psig。通过傅立叶变换红外光谱法分析固体产物,同时将己烷可溶物分为各种化学类别,即。烷烃,中性/多环芳族化合物,羟基多环芳族氧杂环和仲,叔氨基多环芳族化合物。通过气相色谱-质谱(GC-MS)和毛细管气相色谱进一步分析这些馏分中的化合物。这项工作证实了较早的数据,这些数据表明惰质对液化的影响不如先前所想。

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    Mayasandra Venugopal;

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  • 年度 1989
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