巻号一覧
6 巻, 8 号
選択された号の論文の4件中1～4を表示しています
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ノック限界圧縮比に及ぼすエンジン運転条件の影響山崎 毅六, 森 利淳, 前田 耕, 高取 武夫1963 年 6 巻 8 号 p. 597-601
発行日: 1963/08/25
公開日: 2009/01/30
ジャーナル フリーThe antiknock properties of light naphtha under various operating conditions of the CFR engine were investigated by incipient knock limited compression ratios. The occurrence of knock was detected from the characteristic trace of dp/dt vs. time of the cylinder pressure displayed on the cathode ray oscilloscope by piezo type pick up.
It was concluded that the incipient knock limited compression ratio was an efficient means to compare antiknock properties of some stock components of gasolines and effects of antiknock additives. The performance of the CFR engine was also discussed.抄録全体を表示PDF形式でダウンロード (991K) -
出力と燃料のノック性に及ぼす点火時期の影響山崎 毅六, 森 利淳, 前田 耕, 高取 武夫1963 年 6 巻 8 号 p. 602-605
発行日: 1963/08/25
公開日: 2009/01/30
ジャーナル フリー(1) The relationships between spark advance and power of the CFR engine under various conditions were studied. The maximum power spark advances at engine speed of 600rpm and 900rpm were compared with those specified for octane rating by Research and Motor method.
(2) The comparison is made between the knock limited compression ratios by incipient knock and standard knock intensity of Research and Motor method. The possibility of estimating the Research octane number from the incipient knock limited compression ratio is deduced.
(3) It is shown that spark advance and mixture ratio have more effects on antiknock properties as higher octane number fuels are used.抄録全体を表示PDF形式でダウンロード (320K) -
諸反応因子の影響山口 達也, 砂岡 廉, 太田 暢人1963 年 6 巻 8 号 p. 606-610
発行日: 1963/08/25
公開日: 2009/01/30
ジャーナル フリーFor the purpose of preparing lower fatty acids, the authors studied the effect of various reactionary conditions on the liquid phase air oxidation for two kinds of petroleum naphthas-(I) naphthenic 53%, paraffinic 39%, aromatic 8%, b.p. 35∼130°C, (II) naphthenic 81%, paraffinic 19%, aromatic 0%, b.p. 130∼200°C.
The optimum values of reaction temperature and partial pressure of oxygen existed in relatively lower regions. Above these regions, reaction rate were supressed on account of forming retardors. For low concentration, the addition of manganese naphthenate catalyst were very effective in shortening the induction period, however as the concentration rises excess addition prolonged the induction period and suppressed the progress of oxidation reaction.
The optimum reaction conditions were as follow; 160∼170°C of reaction temp., about 5atm. of maximum partial pressure of oxygen (calculated for 0°C), with 0.1wt% (as metalic manganese) manganese naphthenate catalyst. Under the above described conditions, formic acid plus acetic acid were obtained with the yield of 106% and 70.4% based on the reacted petroleum naphthas (I) and (II) respectively.抄録全体を表示PDF形式でダウンロード (420K) -
ナフサ中のイオウ分の影響,反応系内の過酸化物の蓄積等山口 達也, 砂岡 廉, 太田 暢人1963 年 6 巻 8 号 p. 611-614
発行日: 1963/08/25
公開日: 2009/01/30
ジャーナル フリーIn order to establish the fundamental knowledge which is required in the process of preparing lower fatty acids by the liquid phase air oxidation of petroleum naphtha on commercial basis, the authors made some studies and obtained the following results. The reaction was carried out in batch, under pressure.
1. The existence of sulfur compound up to 0.07% did not obstruct the oxidizability of naphtha and the producibility of lower fatty acids.
2. Peroxide concentration in the reaction liquid was studied under the condition of 160°C, 40atm•g by adding manganese or cobalt naphthenate catalyst, (0.1wt% as metal). The peroxide concentration was always richer in aqueous layer than oil layer, and the maximum value was 0.04mol⁄100g with Mn catalyst and 0.008mol⁄100g with Co catalyst. Remarkable peroxide accumulation was not observed even when the temperature was lowered to 130°C.
3. If the types of naphtha and catalyst composition were the same, hydrocarbon conversion was readily estimated from the acid value in the aqueous layer.
4. A substance which delays active radical formation was existed in above 130°C fraction of oil layer of reaction liquid. Because of this retardor, the induction period was much prolonged in re-oxidation of the oil layer. However, the retardor could be easily removed by distillation.抄録全体を表示PDF形式でダウンロード (329K)
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