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[in Japanese]
1970 Volume 34 Issue 6 Pages
553-554
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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Hiromasa Komatsu, Yutaka Tamura, [in Japanese], [in Japanese]
1970 Volume 34 Issue 6 Pages
555-559
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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Akio Muraoka
1970 Volume 34 Issue 6 Pages
559-567
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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Naoto Hashimoto, Sadao Masuda
1970 Volume 34 Issue 6 Pages
567-571
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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Keigo Hirota
1970 Volume 34 Issue 6 Pages
571-576
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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Tsuyoshi Matsuura, Yoshito Tado, Yasutoshi Shigenobu
1970 Volume 34 Issue 6 Pages
577-580
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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Yoshihide Onizuka, Nobutaka Hattori
1970 Volume 34 Issue 6 Pages
580-586
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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[in Japanese], [in Japanese]
1970 Volume 34 Issue 6 Pages
587-594
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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S. S. Zabrodsky
1970 Volume 34 Issue 6 Pages
594-600
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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Reiji Mezaki
1970 Volume 34 Issue 6 Pages
600-601
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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Kakusaburo Onda, Eizo Sada, Takeshi Kobayashi, Norio Ando, Shigeharu K ...
1970 Volume 34 Issue 6 Pages
603-607,a1
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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Diffusion coefficients of carbon dioxide in aqueous electrolyte solutions with negative viscosity were obtanied experimentally by gas absorption in a liquid jet.
A new correlation for diffusion coefficients was derived by utilizing various data from Ratcliff, Onda and Gubbins' experiments. Generally, the relation is applicable to aqueous solutions with high electrolyte concentrations and negative viscosity.
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Satoru Iuchi, Tatsuo Kanki
1970 Volume 34 Issue 6 Pages
607-612,a1
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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Up to this time, the equation of flow of gases in the transition regime has been developed in the form of the sum of laminar and molecular flow rate. These equations however do not express the behavior of transition flow, so we derived an equation which was distinctly distinguished from the behavior of laminar and molecular flow, and studied the factor experimentally that is used in this paper. In conclusion, our equation is regarded as a suitable expresion of the behavior of flow and is appropriate in the entire transition regime from laminar to molecular flow.
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Kiyoshi Kubota, Noriyoshi Morita
1970 Volume 34 Issue 6 Pages
612-618,a1
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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Optimum values of parameters in simultaneous rate equations for propane pyrolysis were estimated by iteration methods, starting from a set of initial values obtained by analog simulation. Quasilinearization of the model by Gaussian iterants was applied for molar numbers of each component in reaction mixtures for various reaction times (Method A), for differential variations of the molar numbers with the conversion of propane (Method B) and for the sum of squares of residuals of the molar numbers of components at each experimental point. Another set of initial values of parameters was examined for theses methods and proved to reach the same final estimates.
Method A was superior to Method B when the differential variations of the molar numbers had to be evaluated from integral rate data. Method C was more stable than Method A for the variation of initial values, although the solution was vibrational.
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Tadashi Shirotsuka, Kiyotaka Sakai
1970 Volume 34 Issue 6 Pages
618-623,a1
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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A theoretical and experimental investigation on the mechanism of flame stability was undertaken by means of a slot burner. The boundary velocity gradient was changed by introduction of small amounts of gases into the zone of flame stability or by suction of small amounts of combustible gas therefrom. It was found that the boundary velocity gradient is an important hydrodynamic factor In flame stability.
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Tadashi Shirotsuka, Kiyotaka Sakai
1970 Volume 34 Issue 6 Pages
623-631,a1
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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Pyrolysis of light hydrocarbon (propane) was carried out in a complete combustion type pyrolysis reactor. The results of this experiment were analyzed by means of design equations obtained through the radiation model. These design equation include reaction heat rate φ(
i). It can be considered as the extent of reaction when a hydrocarbon mixture is fed. Application of these equations to commercial reactor is also discussed.
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Koichi Iinoya, Kazutaka Makino, Osamu Inoue, Tsutomu Imamura
1970 Volume 34 Issue 6 Pages
632-637,a1
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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The following conclusions are obtained from an experimental study of dust collection performance of paper filters.
1) The log-penetration law is satisfied for filter thickness (
L), but for volume fraction of fiber packing (1-ε
f), as in a fibrous filter.
2) Increment ratio of pressure {(Δ
P/Δ
P0)-1} of paper filters is given as a function of dust load, and that of high-efficiency paper filters is nearly one-tenth as small as that of usual paper filters.
3) New correlations (Eqs.(2), (9), (10)) of collection efficiency of a single fiber in paper filters are obtained.
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Hazime Nisimura, Fumio Naito
1970 Volume 34 Issue 6 Pages
637-644,a1
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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The linear model theory which was proposed previously by the authors as a method for process optimization is extended so that it can be generally applied to any chemical process. The key to the extension is to choose, as the policy variables, the degrees of advancement of processing within an apparatus so that the performance of the apparatus can be represented by a matrix. This method enables one to decompose the problem of optimization of a process into the optimization of the prossess as a whole and the sub-optimizations of each component apparatus. This method is applied to the practical optimization of the aromatics extraction process with DMSO, and the procedure and the results of optimization are shown in detail. The procedure consists of the following: the construction of performance matrix of extractor and fractionator, a mass balance calculation with the aid of signal flow graphs, the sub-optimization of each apparatus and the optimization of processes as a whole.
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Yasuo Yoshimoto, Hiro Yanagawa, Tsuneyuki Suzuki, Toshihide Araki, Yos ...
1970 Volume 34 Issue 6 Pages
644-648,a1
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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In radical thermal polymerization by batchwise reactor, we analysed theoretically by using the maximum principle and calculated numerically by computer how to control the reactor temperature to obtain the product with the desired average chain length and the desired conversion in minimum time.
Applying the result to thermal polymerization of styrene, we succeeded in shortening the reaction time in compariton with that of the usual constant-temperature reaction.
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1970 Volume 34 Issue 6 Pages
649-655,a1
Published: June 05, 1970
Released on J-STAGE: October 07, 2010
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