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58 巻, 10 号
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玉貫 滋1979 年 58 巻 10 号 p. 815-828
発行日: 1979/10/20
公開日: 2010/06/28
ジャーナル フリーWith regard to the disposition of coal ash, faced with projected large increase in the use of coal for generating electric power, we are now beginning to seek technologies that will permit diversification of the means of utilizing and disposing of it.抄録全体を表示PDF形式でダウンロード (2184K) -
功刀 泰碩1979 年 58 巻 10 号 p. 829-836
発行日: 1979/10/20
公開日: 2010/06/28
ジャーナル フリーToday, with petroleum no longer to be available at cheap prices, we are all compelled to find new measures for the efficient utilization of petroleum. In particular, C1 chemistry, a new route synthetic chemistry, derived from the synthesis gas prepar-ed by gasifying heavy residues, natural gas and cheap level coals seems to be the most prospective way supplying alternatives with some expensive petrochemicals. This paper reviews the new type gasificatication processes, the potential utility value of coke oven gas and LD-converter gas in the iron and steel industry, promising chemicals from synthesis gas or methanol and their economics.抄録全体を表示PDF形式でダウンロード (997K) -
13C-NMRの定量性と構造解析法横山 晋, 内野 洋之, 加藤 隆, 真田 雄三, 吉田 忠1979 年 58 巻 10 号 p. 837-847
発行日: 1979/10/20
公開日: 2011/10/21
ジャーナル フリーCoal liquid derived from hydrogenolysis of Akabira coal was performed a separation into compound types by means of silica-alumina gel dual packed liquid chroma-tography modified partly USBM-API method. Respective fractions obtained were investiga-ted on quantitative analyses of 13C-NMR measurement varing the pulse interval time to obtain information concerning relaxation time for main carbon signals and using the technique of ordinary broad band proton decoupling, gated decoupling and proton coupling method. Contents of aromatic carbon derived from gated decoupling technique which can be suppressed the NOE effect, agree fairly with the results from proton coupling technique which enable to get quantitative results without NOE effect.
Procedure of structural analyses for unit structure was derived by using the results of 13C-NMR spectra on a combination with 1H-NMR results in order to avoid uncertain assu-mption made when the Brown-Ladner equations are used. The structural analysis adopted can derive directly the content of aromatic carbon and the ratio of atomic hydrogen to carbon on aliphatic substitution attached to aromatic rings, consequently accurate structural parameter are able to be analyzed.
Fr-p eluted firstly with cyclohexane on chromatographic separation, showed 13C-NMR signal assigned to typical long n-paraffine at 14, 23, 32, 29 and 29. 5ppm and are estimated to be consisted of an average of 22 carbon length n-paraffine. The n-paraffine content in this fraction is about 46 wt.%. For Fr-M, it was found to be constituted from one to two aromatic rings, for Fr-D and Fr-T two and three aromatic rings respectively, indicating to be accomplished a efficient separation into compound types. As the aromatic ring number increases (from Fr-M to Fr-T), the fa values increase gradually from 0.42 to 0.69. How-ever, the total number of carbon in each structural unit does not change largely.抄録全体を表示PDF形式でダウンロード (1314K) -
粘着炭の共炭化持田 勲, 森山 清治, 松岡 秀一, 前田 恵子, 藤津 博, 竹下 健次郎, Harry MARSH1979 年 58 巻 10 号 p. 848-859
発行日: 1979/10/20
公開日: 2010/06/28
ジャーナル フリーModifying optical texture of the coke from Miike coal of powdered form, which gave, singly carbonized, an isotropic coke, was investigated by applying the variable carbonization conditions, a carbonization catalyst and co-carbonization with some hydrocarbons and pitches. A rapid tempetature-rise was favourable to develop fine mosaic texture in a rather limited area of the coke. Aluminum chloride was effective to carbonize carbonecious materials, the degree of anisotropic development in the produced coke being influenced by the amount of the catalyst. Pyrene showed little modification ability as a co-carbonizing partner, whereas hydropyrene was a powerful agent to produce fine to coarse mosaic texture according to mixing ratio of 0.5 or 2.0 (mole ratio), respectively, although the former compound was not carbonized singly. Acenaphthylene and decacyclene which gave, singly carbonized, flow texture were also effective, the latter agent being quite powerful probably because of its high coke yield. Co-carbonization of hydrocarbons assisted by aluminum chloride could be effective to develop better anisotropy from fine to flow texture according to the amount of aluminum chloride and the hydrocarbons. Co-carbonization activities of several residual oils were also examined. Some of them are quite powerful to develop the flow texture by the mixing ratio of 1 to 2. The development of anisotropic texture from the fusible coal is discussed from the viewpoint of carbonization mechanism where the mesophase formation is possibly influenced by the heating rate, the catalyst, and the co-carbonizing partners.抄録全体を表示PDF形式でダウンロード (4644K) -
角南 好彦, 西岡 邦彦, 小川 真資, 桐谷 利信1979 年 58 巻 10 号 p. 860-867
発行日: 1979/10/20
公開日: 2010/06/28
ジャーナル フリーIn order to confirm the effects of pitch on the carbonization, a few experiments on the base of pitch with high sulfur contents were conducted by use of EPMA and microscope. These results are described in this paper.
From these experiments, the following effects of pitch were recognized.
1) Compatibility between pitch and coal
2) Increase and improvement of anisotropic texture.
These modification of fects mentioned above were recognized in solvent fractionation of the range from n-heptane insoluble to CS2 soluble.
These methods are available for the quantitative analysis of the pitch of fects.抄録全体を表示PDF形式でダウンロード (2190K) -
コークスによる水蒸気含有排ガス中のNOxの接触還元吉田 高年, 木村 典彦, 植野 禎夫, 越谷 仁哉1979 年 58 巻 10 号 p. 868-874
発行日: 1979/10/20
公開日: 2011/02/23
ジャーナル フリーIn Waste gas containing H2O at space velocity 3200-6400 hr-1, nitric oxide was removed 5% more than in waste gas not containing H2O.
As the f ormer report-clarif ied, the lower space velocity and the higher reaction temperature gives more effective reduction of NOx.
The coke wasconsumedless by H2O conversion at the lower space velocity.
CO should be eliminated by the effective method like catalytic or secondary air com-bustion.抄録全体を表示PDF形式でダウンロード (787K) -
振動面の振幅千葉 近1979 年 58 巻 10 号 p. 875-884
発行日: 1979/10/20
公開日: 2010/06/28
ジャーナル フリーFor reasons that the amplitudes play the most important role for atomisation of liquid by vibration, the amplitudes on vibrating surface which have not been overtaken were measured precisely in the case of sonic vibration by using an electro optical displacement follower, and the longitudinal vibration of vibrating horn was theoretically analysed. The followings were obtained.
(1) The more sound output increases, the less resonant frequency decreases, and the more amplitude increases.
(2) The longitudinal amplitudes are varied with the position on a vibrating surface in the case of more than the level of sound intensity IL=173dB and a tendency of nodal circles is recognized.
(3) A lateral vibration accompanied with a given longitudinal vibration is small.The maximum longitudinal amplitude is 39.8 μm at the radius of vibrating surface 5, 4mm, and the maximum lateral amplitude at the end of vibrating surface is 2.4μm. The latter is about only 6% of the former.
(4) The theoretical equation of longitudinal displacement and frequency, the equation of approximate frequency coefficient and the experimental equation of frequency and longitudinal amplitude were obtained about the center of vibrating surface, and the method which the longitudinal displacement was rightly obtained from calculation was indicated.抄録全体を表示PDF形式でダウンロード (1918K)
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