Zobrazeno 1 - 10
of 152
pro vyhledávání: '"Kazunari Ohgaki"'
Autor:
Takeshi Sugahara, Kei Takeya, Mikio Nakagoshi, Takashi Minami, Atsushi Tani, Naohiro Kobayashi, Kazunari Ohgaki
Publikováno v:
Energies, Vol 5, Iss 6, Pp 1705-1712 (2012)
Electron spin resonance (ESR) spectra of butyl radicals induced with γ-ray irradiation in the simple isobutane (2-methylpropane) hydrate (prepared with deuterated water) were investigated. Isothermal annealing results of the γ-ray-irradiated isobut
Externí odkaz:
https://doaj.org/article/00530216105b4e3ba88127cef4aefa71
Publikováno v:
International Journal of Chemical Engineering, Vol 2012 (2012)
The slurries-containing tetra-n-butyl ammonium bromide (TBAB) solution and its semiclathrate hydrate have attracted a lot of interest as latent heat transport media. These hydrate slurries contain some microparticles of crystal, and the size and shap
Externí odkaz:
https://doaj.org/article/6dd2debf2cd741aa9e962338da7f83ae
Autor:
Hiroshi Sato, Takanori Tsuji, Tetsunari Nakamura, Koichi Uesugi, Takahiro Kinoshita, Masahiro Takahashi, Hiroko Mimachi, Toru Iwasaki, Kazunari Ohgaki
Publikováno v:
International Journal of Chemical Engineering, Vol 2009 (2009)
The anomalous or self-preservation of methane hydrate at atmospheric pressure and temperatures below the ice point was investigated to determine whether this phenomenon might have applications in the storage and transportation of natural gas. Particu
Externí odkaz:
https://doaj.org/article/5892b0da34254cbdb1cd6c2a9497f70f
Publikováno v:
The Journal of Physical Chemistry B. 118:13409-13413
Clathrate hydrates preserve active species more stably than the other icy materials and investigation of the behavior of the active species elucidates the physicochemical properties of clathrate hydrates like guest-guest interaction. Color of the ter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1edd785aeafc343209dcc50fd3cfdc32
https://doi.org/10.1021/jp505339a
https://doi.org/10.1021/jp505339a
Autor:
Takashi Makino, Kazunari Ohgaki, Yoshito Katsuta, Hiroaki Matsukawa, Young Bae Jeon, Yuuki Matsumoto, Fumitaka Kamo, Takeshi Sugahara, Tatsuya Bando
Publikováno v:
Journal of Chemical & Engineering Data. 59:2294-2297
Thermodynamic stability boundaries of the mixed hydrate composed of methane and fluorocyclopentane, chlorocyclopentane, or bromocyclopentane were investigated in a temperature range of (274.17 to 306.19) K and pressures up to 9.93 MPa under the four-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b1cdb1c25976df9e3e8a8337d06457e
https://doi.org/10.1021/je500349v
https://doi.org/10.1021/je500349v
Autor:
Takeshi Sugahara, Kazuma Kitamura, Takashi Fujimoto, Tomohiro Tanabe, Kazunari Ohgaki, Takahiro Yamazaki
Publikováno v:
Journal of Chemical & Engineering Data. 60:222-227
Tomohiro Tanabe, Takeshi Sugahara, Kazuma Kitamura et al. High-Pressure Phase Equilibria of Tertiary-Butylamine Hydrates with and without Hydrogen, Journal of Chemical & Engineering Data, 60 (2), 222–227, February 12, © 2015 American Chemical Soci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7628f262fddc0550fc28e6aba309d265
https://doi.org/10.1021/je5003016
https://doi.org/10.1021/je5003016
Autor:
Kazunari Ohgaki, R. Gary Grim, Naveed M. Khan, Takeshi Sugahara, E. Dendy Sloan, Carolyn A. Koh, Yuuki Matsumoto, Amadeu K. Sum
Publikováno v:
The Journal of Physical Chemistry C. 118:3783-3788
When hydrogen (H2) is mixed with small amounts of methane (CH4), the conditions required for clathrate hydrate formation can be significantly reduced when compared to that of simple H2 hydrate. With growing demand for CH4 as a commercially viable sou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76d8ef75da8e8d3839ff5dc7115ff357
https://doi.org/10.1021/jp411140z
https://doi.org/10.1021/jp411140z
Publikováno v:
Fluid Phase Equilibria. 362:379-382
Thermodynamic stability boundaries of carbon dioxide + cyclopentane, carbon dioxide + cyclopentanone, and carbon dioxide + fluorocyclopentane mixed hydrates have been investigated in the range of 274.19–293.72 K and up to 4.88 MPa. The phase equili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64f0828aa7ea7a05e3cbf79dea519cbc
https://doi.org/10.1016/j.fluid.2013.10.057
https://doi.org/10.1016/j.fluid.2013.10.057
Autor:
Kazunari Ohgaki, Akio Nishikawa, Kazuma Kitamura, Yuuki Matsumoto, Tomohiro Tanabe, Takeshi Sugahara
Publikováno v:
Chemical Engineering Science. 101:1-4
Large-cage occupancy of hydrogen (H 2 ) in the H 2 +tetrahydrofuran (THF) hydrates has been ever reported only in the ex situ spectroscopic measurements with the quenched hydrate sample. In the present study, to verify the proof-of-concept for the la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::def9b8398371b749885e96911b4b13de
https://doi.org/10.1016/j.ces.2013.05.044
https://doi.org/10.1016/j.ces.2013.05.044
Publikováno v:
Journal of Chemical & Engineering Data. 58:2596-2599
The enclathration of 2,3,3,3-tetrafluoropropene (HFO-1234yf) has been investigated. In the binary system of HFO-1234yf+H2O, simple HFO-1234yf hydrate is not formed even at 50 MPa and 274.15 K. The addition of methane (CH4) as a help molecule results
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84f801905b7f3dd0bf141bb358303fc1
https://doi.org/10.1021/je400481r
https://doi.org/10.1021/je400481r