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Volume 36, Issue 6
Displaying 1-19 of 19 articles from this issue
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[in Japanese]1957 Volume 36 Issue 6 Pages 499
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
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Juichi Inoue1957 Volume 36 Issue 6 Pages 508-512
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESStural gas in Niigata is found with saline water in the porous strata of upper Tertiary and the Quaternary extending over the whole area of Kanbara plain . Salinity of the water here is found lower at the upper strata than that of the deeper horizons. Also, even in the same stratum salinity at the up dip is lower than that of the down dip.Gas-water-ratio increases with more salinity and depth.
According to the calculation of the Subterranean Resources Section, Department of Economic Affairs of Niigata Prefectural Government, gas reserve in this area is estimated at 28, 000 million m3. However, the reserve is believed to have increased by 2.5 times through the recent discoveries of 3 more gas producing strata in the deeper horizon . In view of the fact that the productive capacity of water soluble gas per well is limited, many more wells have to be drilled to get more gas from the underground . In order to find more structural gas fields that are free from drainage problems with higher per well productivity in the deeper horizons of Niigata prefecture, Teikoku Oil company has launched deep exploration drilling at Ohguchi and Nanukamachi, and further-more Kameta is scheduled to be the next site for the deep prospection in 1957.View full abstractDownload PDF (914K) -
Kenji Imai, Michio Suzuki, Seiichi Nomura1957 Volume 36 Issue 6 Pages 526-534
Published: June 20, 1957
Released on J-STAGE: October 21, 2011
JOURNAL FREE ACCESSTo obtain lower olefins, especially ethylene in high yield, pyrolytic cracking of 120-360°C fraction of low temperature tar from Miike coal and TOhoku lignite has been investigated. These results were compared with those about petroleum oils, i.e. gas oil and cracking stock.
They were pyrolyzed with superheated steam in stainless steel reactor (50mm∅) packed with chamotte brick (4-7mesh, 500cc).
In the preliminary investigation of pyrolysis of cracking stock, better results were obtained when steam/oil ratio was 6g/cc and liquid space velocity was 1.0vol/hr. Then these conditions were applied for other oil and tar.
Content of olefins in cracked gas from tar is not so high as those from petroleum oils.
Yield of ethylene from neutral oil of Miike tar is nearly the same as cracking stock, about 22% by weight, but that from unwashed tar is lower than that from neutral tar oil or cracking stock, about 17% by weight, yield of olefins except ethylene from neutral tar oil is about half of that from petroleum oil, especially at 700
°C. In gas worth (Japan heat unit X 104/k/ kl), tars are especially inferior to petroleum oils.
There is proportional relation between the result of pyrolysis and C/H (wt) ratio of the charge oil or residual carbon; volume of cracked gas, yield of olefins, calorific#value of gas and gas worth etc. decrease with increasing C/H ratio or residual carbon.View full abstractDownload PDF (1273K) -
Formation of mono-and dihydroperoxide from p-secbutylisopropylbenzeneShigeru Tsutsumi, Yoshinobu Odaira1957 Volume 36 Issue 6 Pages 535-540
Published: June 20, 1957
Released on J-STAGE: October 21, 2011
JOURNAL FREE ACCESSdihydroperoxide of p-sec-butyl-isopropylbenzene were obtained by the liquid phase oxidation at 95°C and the results were quite similar to the case in the oxidation of p-diisopylbeznne. As an initiator, benzoylperoxide, mono-and dihydroperoxide of the said compound were used and the HP0% was maximum up to 62.5% in the case where dihydroperoxide was used.
Monohydroperoxide was oxidized by the use of ferric sulfate and gave p-diacetylbenzene, whereas by the decomposition with diluted sulfuric acid gave hydroquinone.
Na2S2O3 reduced the monohydroperoxide to p-sec-butyl-2, 2-dimethylbenzylalcohol . From the above-mentioned results, the OOH group was confirmed to be attached to isopropyl group.Thus the oxidation of isopropyl group seems to occurr preferably as compared with sec-butyl one.
Mono-hydroperoxide is a liquid boiling at 89-90°C/0 .05mm Hg and identified by the elementary analysis as well as by the infrared spectrum.
Dihydroperoxide is a colorles solid melting at 78-90°C and its structure wes confirmed by the elementary and infrared analysis.
Next, monohydroperoxide was reacted with p-sec-butyl-a-ai-dimethylbenzylalcohol in the stream of nitrogen at 95°C for 48hrs and the product was confirmed to be di-p-secbutyl- cumyl-peroxide which was pale yellov liquid boiling higher than 100°C/0 .002mmHg.View full abstractDownload PDF (782K) -
[in Japanese]1957 Volume 36 Issue 6 Pages 541-542
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
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1957 Volume 36 Issue 6 Pages 543
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
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1957 Volume 36 Issue 6 Pages 545
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
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1957 Volume 36 Issue 6 Pages 545a-546
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
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1957 Volume 36 Issue 6 Pages 546-547
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
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1957 Volume 36 Issue 6 Pages 547a-548
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
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1957 Volume 36 Issue 6 Pages 547
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
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1957 Volume 36 Issue 6 Pages 548-549
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
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1957 Volume 36 Issue 6 Pages 549-554
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
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1957 Volume 36 Issue 6 Pages 554
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
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1957 Volume 36 Issue 6 Pages 554a-558
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
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1957 Volume 36 Issue 6 Pages 558
Published: June 20, 1957
Released on J-STAGE: June 28, 2010
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1957 Volume 36 Issue 6 Pages 559
Published: 1957
Released on J-STAGE: February 23, 2011
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[in Japanese]1957 Volume 36 Issue 6 Pages 500-507
Published: June 20, 1957
Released on J-STAGE: May 16, 2013
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Kinji Kanehara1957 Volume 36 Issue 6 Pages 513-525
Published: June 20, 1957
Released on J-STAGE: May 16, 2013
JOURNAL FREE ACCESSreport desecribes in detail the geological circumstances of productions., quantities and properties, and the present status of development and utilization of natural, gas in all Japan.
Natural gas in Japan has been mainly used as fuel and also recenthy utilized as raw materials of chemical industries for the synthesis of methanol, ammonia, etc. In order to promote these chemical industries, it is most necessary to clarify the under ground conditions of natural gas from the geological points of view.View full abstractDownload PDF (2726K)
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