Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Chikao Yokokawa"'
Publikováno v:
TANSO. 1991:151-156
The present study deals with elucidating the effect of surface acidic groups of activated carbon on the adsorption rate from aqueous solutions. In order to modify the surface characteristics, a commercial activated carbon was subjected to oxidation r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36dabafebc5fb3b0239247139686b46c
https://doi.org/10.7209/tanso.1991.151
https://doi.org/10.7209/tanso.1991.151
Publikováno v:
Journal of the Fuel Society of Japan. 70:978-984
Six kinds of model compounds were subjected to catalytic hyd-rogenolysis in tetralin as a hydrogen-donor solvent at 653K. Ten kinds of catalysts were employed and the additive effect of tetralin on the reaction profiles was discussed. Three kinds of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8f04456873b9cf30440cfce1b01bfbf
https://doi.org/10.3775/jie.70.10_978
https://doi.org/10.3775/jie.70.10_978
Publikováno v:
Journal of the Fuel Society of Japan. 70:833-837
Twenty six kinds of coals, which were chosen at random, were burnt to ashes by combustion either in air at 800°C or in an oxygen plasma at 185°C. The ashes were submitted to either X-ray fluorescence or ICP analysis and the content of the mineral e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3fced06edfdb4cdcf906a35860bd3bc
https://doi.org/10.3775/jie.70.8_833
https://doi.org/10.3775/jie.70.8_833
Publikováno v:
Journal of the Fuel Society of Japan. 69:1061-1067
Ten kinds of catalysts were applied to the hydrogenolysis reactions of coal model compounds at 653 and 693K, and the specific behavior of the catalysts and the effect of temperature on them were discussed. Diphenylmethane, dibenzyl, diphenyl ether an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdeab12934fd2f436d079bd56fceaa6c
https://doi.org/10.3775/jie.69.11_1061
https://doi.org/10.3775/jie.69.11_1061
Publikováno v:
Journal of the Fuel Society of Japan. 69:1122-1129
The hydrogenolysis of Solvent-Refined Lignite (SRL) obtained from Morwell coal was conducted in the presence of four kinds of catalysts with tetra-lin or creosote oil as solvent at 693 K. The products were separated into five compo-nents and each of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffc52eb4636f4860498eddfe85213906
https://doi.org/10.3775/jie.69.12_1122
https://doi.org/10.3775/jie.69.12_1122
Publikováno v:
Fuel. 60:495-498
To elucidate the process of ‘fuel NO x ’ formation from cokes and chars on combustion, carbons obtained from urea-resin and melamine-resin were subjected to combustion under a stream of pure oxygen at temperatures between 600 °C and 1000 °C. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fa2ea70d17955182a7290147e58814e
https://doi.org/10.1016/0016-2361(81)90111-3
https://doi.org/10.1016/0016-2361(81)90111-3
Autor:
Hirokazu Oda, Chikao Yokokawa
Publikováno v:
Carbon. 21:485-489
In order to study the effect of surface acidity of activated carbons on their adsorption characteristics, three kinds of aromatic amines and four kinds of o -substituted phenols were adsorbed from organic solutions by twelve kinds of activated carbon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6211348895f76e1977c24441b55a09a1
https://doi.org/10.1016/0008-6223(83)90141-0
https://doi.org/10.1016/0008-6223(83)90141-0
Publikováno v:
Fuel. 60:390-396
Seven kinds of coals (C, 77.8–89.8 wt% daf) were oxidized with air at 150 °C for 1, 5 and 10 h. The oxidized coals were heat-treated at various temperatures between 300 and 1500 °C with intervals of 50 or 100°C. The pore-structure of the oxidize
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7f039947255d29378b55e02f293526f
https://doi.org/10.1016/0016-2361(81)90275-1
https://doi.org/10.1016/0016-2361(81)90275-1
Publikováno v:
Carbon. 19:243-248
Effect of surface acidic groups of activated carbons on their adsorption characteristics for substrates from aqueous solutions were studied. Six kinds of carbons obtained commercially and their heat-treated products were used. Pore-size distribution,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2b4912a98f1bf7de744085d336eb830
https://doi.org/10.1016/0008-6223(81)90068-3
https://doi.org/10.1016/0008-6223(81)90068-3
Autor:
Chikao Yokokawa
Publikováno v:
Journal of the Fuel Society of Japan. 58:64-74
Review and digest of the preceeding literatures were made in order to demonstrate a physico-chemical aspect of coals.Appearent density, porosity and specific surface area were considered at a stand point of the way of constructing the coal matrix. Tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28b689e16903bb54ac3333ac88930dd7
https://doi.org/10.3775/jie.58.64
https://doi.org/10.3775/jie.58.64