Comparison of Five Structural Analysis methods on Pitches
スポンサーリンク
概要
- 論文の詳細を見る
Coal tar pitch, naphtha cracking pitch, oil produced from coal hydrogenolysis and two kinds of petroleum residual oil, which have the wide range of <I>H</I>/<I>C</I> value (0.6-1.7) and <I>C</I>% (93.5-84.4%), were analysed by IR-, <I>n</I>-<I>d</I>-, <SUP>1</SUP>H-NMR-, <SUP>13</SUP>C-NMR- and computer-method. The structural parameters were compared each other and the problems discussed.<BR>The pitches which are rich in aromatic part have good coincidence in all methods, so it was recomended to use computer method which gave the greatest numbers of the structural parameters.<BR>For the samples which are rich in aliphatic part, the values of <I>x</I> (<I>y</I>) or εar/εal gave big influence on the structural parameters in IR and <SUP>1</SUP>H-NMR method. They are able to be obtained experimentally from <SUP>1</SUP>H-NMR and <SUP>13</SUP>C-NMR measurement. <SUP>13</SUP>C-NMR method is the one which utilizes the results of both <SUP>1</SUP>H-NMR and <SUP>13</SUP>C-NMR and thought to be the most reliable method. Computer method coincides well with <SUP>13</SUP>C-NMR method. No utilization of costful <SUP>13</SUP>C-NMR and to be able to get more structural parameters than others are its superiority, but for the sample rich in aliphatic part there are many of the possibility of the set of structural parmeters which coincide to the practical data. In these cases the increase of the precision of experimental data must be required.<BR>Finally the structural models of each sample were proposed on the bases of struc-tural parameters obtained by computer method. The calculated <I>x</I> values of these model structure well coincide with those obtained from experimental values.
- 一般社団法人 日本エネルギー学会の論文
一般社団法人 日本エネルギー学会 | 論文
- Modifying Optical Texture of the Coke from Miike Coal
- Development of Petrochemical Industry with the Background of Iron Manufacturing Industry
- タイトル無し
- Study on Development of Waste Oil Combustion Burner for Energy Saving and Low-Pollution (II): Combustion of Waste Oil and Exhaust Emission Characteristics by Internal Mixing Twin-Fluid Atomizer:Combustion of Waste Oil and Exhaust Emission Characteristics
- Study on Development of Waste Oil Combustion Burner for Energy Saving and Low-Pollution (I): Atomization of High-Viscous Liquid Jet by Internal Mixing Twin-Fluid Atomizer:Atomization of High-Viscous Liquid Jet by Internal Mixing Twin-Fluid Atomizer