甲基苯酚是煤热解产物之一,其高温热解反应可能是影响煤热解过程二次反应及最终热解产物性质的重要因素。本文利用ReaxFF MD方法[1]就对甲基苯酚热解机理进行研究,模型体系由1000个对甲酚分子构成。考察了主要热解产物的生成顺序及产物分布随温度的演变规律,结果表明苯、甲苯等芳香产物随温度升高先增多后减少,而氢气、甲烷等小分子气体随温度单调增加。本文还基于ReaxFF可视化分析工具VARxMD[2 ...
高明杰, 李晓霞, 郭力
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[A case of acetaminophen-induced cholestatic liver injury accompanying severe hypercholesterolemia in children]. [PDF]
Chen L, Gao XY, Liu XY, Shao YL.
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以(NH4)6Mo7O24·4H2O为前驱体通过简单的焙烧方法制备非负载型MoO3催化剂,通过低温N2吸附、X射线衍射(XRD)、X射线光电子能谱(XPS)和H2程序升温还原(H2-TPR)技术对催化剂特性进行表征,以苯酚为模型化合物进行加氢脱氧实验制备以苯为主要产物的芳烃化学品。重点考察反应温度、反应时间、反应气组成等参数对苯酚转化率、目标产物苯选择性的影响,并就氧化钼催化加氢脱氧反应机制及催化剂的可重复使用性能进行讨论与考察。实验结果表明,在340℃、0.5 MPa H2与3.0 MPa ...
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[Research progress on high performance liquid chromatography stationary phases based on mixed mode]. [PDF]
Li SJ, Li Z, Tang ZX, Lyu M, Wang LT.
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酚醛树脂工业废水中含有高浓度苯酚和甲醛等污染物,针对废水特点,某酚醛树脂生产企业采用回收酚醛树脂+生物处理+深度氧化处理的组合工艺对其进行处理,同时采用碱液喷淋+生物除臭工艺处理废水处理过程中产生的含苯酚、甲醛等污染物的废气。该系统已稳定运行3 a,运行结果表明,采用的处理工艺能显著去除废水中的苯酚和甲醛,处理后苯酚和甲醛的排放质量浓度分别低于0.5 mg/L和5 mg/L,满足《合成树脂工业污染物排放标准》(GB 31572—2015)间接排放标准和《污水综合排放标准》(GB 8978—1996 ...
李敬存 +3 more
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[Deep eutectic solvent and improved needle filter-based liquid-membrane microextraction combined with high performance liquid chromatography for the determination of sulfonamide and fluoroquinolone residues in milk]. [PDF]
Xu RM +5 more
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[Controlled synthesis of high-capacity bisphenol A molecularly imprinted polymer and its application to the detection of environmental water samples]. [PDF]
Cheng Y, Lin YL, Tian MM.
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Yu T, Chen L, Zhang W, Zhang L, Lu Q.
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[Determination of multiple restricted and prohibited ingredients in hair dyes using a novel 3D stationary phase coupled with gas chromatography-mass spectrometry]. [PDF]
Zhang P, Li K, Zhou J, Han WN, He YR.
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[Progress in the metabolic and biotransformation of polycyclic aromatic hydrocarbons and their derivatives in humans]. [PDF]
Qian JK +6 more
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