• 芳烃的一个代表性化合物

    Pyrene is a representative compound among PAH.

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  • 介绍环丁砜溶剂萃取芳烃方法

    A method for extraction of aromatic hydrocarbon using sulfolane as solvent is described.

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  • 城市地区机动车辆多环芳烃主要来源

    In urban areas motor vehicles are a major source of PAHs.

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  • 主要研究了芳烃的地区季节分布特征

    The distributive characteristics of PAHs in different districts and different seasons were mainly studied.

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  • 总共有140名儿童分为多环芳烃接触者。

    A total of 140 children were classified as having high PAH exposure.

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  • 本文综述环境中多环芳烃来源迁移转化研究近况。

    The paper summarizes the recent research on the source, migration and transformation of polycyclic aromatic hydrocarbon (PAH) under the different environments.

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  • 简要介绍了分子化学起源,杯芳烃合成性质应用

    Supermolecule chemistry and calixarene are introduced. The characteristic, synthesis method and application of calixarene are introduced in brief.

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  • 石脑油既是裂解制乙烯原料,也是重整制备芳烃的原料。

    Naphtha is the feedstock for both ethylene production and catalytic reforming.

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  • 综述了甲烷催化转化合成芳烃方法目前实验达到的结果

    Synthesis of aromatics by catalytic conversion of methane is reviewed and the recent results of experiment are given.

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  • 综述了甲烷催化转化合成芳烃方法目前实验达到结果

    This paper introduces the method of direct aromatization reaction of methane and the experimental results achieved at present.

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  • 该法几种代表性多环芳烃的回收率为75.0-100%。

    The recoveries of the method for several PAH were 75-100%.

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  • 本文概述天然环境芳烃来源分布和迁移转化规律。

    A large number of research results have been made on the sources, distribution, transport and transformation of polycyclic aromatic hydrocarbons (PAH) in the natural environment.

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  • 近年来石油(其是柴油)分脱除芳烃问题受到越来越的重视。

    Recently, aromatic saturation in distillate fractions specially in diesel fuel has received considerable attention.

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  • 这些结构参数直观地表征了石油磺酸烷基芳烃平均结构模型。

    The carbon number, average aromatic carbon number, average saturated carbon number and the average number of methyl were figured out.

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  • 溶剂催化加氢芳烃研究,考查了不同操作条件下6~?。

    The effects of different operating conditions on the catalytic hydrodearomatization of 6 extraction solvent oil are investigated.

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  • 论述了柴油加氢芳烃催化剂体系、芳烃加氢反应机理工艺方法

    The processes and catalysts for removal of aromatics contained in diesel oil are reviewed.

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  • 土壤对多环芳烃吸附去除效果明显,其中吸附等温线呈线性

    The sorption of acenaphthene and phenanthrene was characterized by linear isotherm indicating solute partition between water and the organic phase in soil.

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  • 目的紫外分光光度法荧光分光光度法优化化探样品芳烃测试条件

    Aim To optimize the measurement condition of hydrocarbon in geochemical samples by ultraviolet spectrometry and fluorescence spectroscopy.

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  • 环烷烃烷烃烯烃芳烃含量随着空速变化出现相互交叉的现象;

    The content of naphthene, total paraffin, olefin and aromatics in FCC gasoline increased or decreased alternately with the change of space velocity.

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  • 研究了北京市典型交通路口大气颗粒物多环芳烃污染特征影响因素

    Pollution property of PAHs in the particulates in the air and its affecting factors at the traffic crossing in Beijing were studied.

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  • 单环芳烃加氢饱和环烷烃选择柴油深度脱芳过程中的重要反应。

    The hydrogenation saturation of aromatics and selective ring opening of cycloalkane were the most important process during deep dearomatization of diesel oil.

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  • 介绍了当前研究开发中的几种芳烃清洁硝化工艺包括液相硝化和气硝化

    This paper studies some clean process used for the nitration of aromatic hydrocarbon, including liquid phase reaction and gas phase reaction.

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  • 方法优化后条件陕北地区化探样品芳烃石油萃取进行光谱分析。

    Methods the extracted liquid with petroleum ether from the geochemical samples in the north of Shaanxi was spectrally analyzed by using the optimized measurement condition.

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  • 催化重整生产高辛烷值汽油组分芳烃重要工艺并且能为炼厂提供廉价氢气

    The catalytic reforming is an important technology providing high-octane gasoline and aromatic hydrocarbon, and also offering a great deal of cheap hydrogen to refinery.

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  • 本文综述了含杯芳烃高分子材料化学传感器、谱及传输分离等方面的研究应用

    In this review, progress in the research and application of this kind of calixarene-containing polymer materials is presented in view of chemical sensors, chromatography and transport separation.

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  • 本文综述固有手性芳烃合成光学拆分及其在手识别不对称催化领域应用

    Herein the synthesis and optical resolution of inherently chiral calixarenes and their applications in enantioselective recognition and asymmetric catalysis are reviewed.

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  • 结果表明QSARPC A方法结合可以成功地评价预测硝基芳烃的综合毒性

    The results show that the combination of QSAR and PCA can successfully evaluate and predict the integrated toxicities of combination of nitroaromatic compounds.

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  • 研究显示,芳烃甲基甲基重排作用原始可溶有机质丰度来源演化程度的控制。

    In addition, methylation and methyl rearrangement of arenes were mainly controlled by the abundance, source and evolution degree of soluble organic matter.

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  • 本文就硝基多环芳烃突变性结构致突变活性之间关系方面的研究进展加以综合评述

    In this paper, the recent advance in the study on mutagenicity and structure activity relationships of nitrated PAHs were reviewed.

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  • 本文就硝基多环芳烃突变性结构致突变活性之间关系方面的研究进展加以综合评述

    In this paper, the recent advance in the study on mutagenicity and structure activity relationships of nitrated PAHs were reviewed.

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