Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Masaharu Nishioka"'
Autor:
Masaharu Nishioka
Publikováno v:
Energy & Fuels. 16:1109-1115
The structure of coal is not a covalently cross-linked network, but rather, is represented by the physically associated model. Furthermore, the solvent swelling of coal is dependent on coal concentrations. The swelling kinetics of coal in slurry is,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::653e383d91acc3eef9fa1f386c12746e
https://doi.org/10.1021/ef010291c
https://doi.org/10.1021/ef010291c
Autor:
Masaharu Nishioka
Publikováno v:
Energy & Fuels. 15:1313-1316
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46aa23aa2f0ef75abd3efb34f948c5b0
https://doi.org/10.1021/ef010041w
https://doi.org/10.1021/ef010041w
Publikováno v:
Energy & Fuels. 9:788-793
Upper Freeport (Argonne Sample) coal was extracted with carbon disulfide-N-methyl-2-pyrrolidinone (CS 2 -NMP) mixed solvent at room temperature. The swelling behaviors for the raw coal, heavy extract fractions, and extraction residue were investigate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d669a6bac299572f95ea99397cb7124f
https://doi.org/10.1021/ef00053a009
https://doi.org/10.1021/ef00053a009
Publikováno v:
Environmental sciencetechnology. 20(10)
Isomeric polycyclic aromatic hydrocarbons (PAH) with two to six rings in coal-derived products and in a carbon black were separated, identified, and quantified by using capillary column gas chromatography and gas chromatography-mass spectrometry. A n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d010d1218b6706f0c2275c0d635a23c5
https://pubmed.ncbi.nlm.nih.gov/22257402
https://pubmed.ncbi.nlm.nih.gov/22257402
Publikováno v:
Energy & Fuels. 8:643-648
In the past, covalently, cross-linked, three-dimensional macromolecular model for coal structure has been widely accepted and specific responses from processes like gasification and liquefaction interpreted accordingly. Recent studies, however, have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7278c9610db2def9ddeabc6e12d9d2c2
https://doi.org/10.1021/ef00045a020
https://doi.org/10.1021/ef00045a020
Publikováno v:
Fuel. 73:251-255
Solvent swelling has previously been examined for coal samples obtained by soaking in toluene at 200 and 350 °C. The result has implied that associative equilibrium is the major factor for large disintegration of coal in high temperature soaking. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edbd83e923d3595f533c4ce59fa03cc4
https://doi.org/10.1016/0016-2361(94)90121-x
https://doi.org/10.1016/0016-2361(94)90121-x
Autor:
Masaharu Nishioka
Publikováno v:
Fuel. 73:57-62
Pyridine-extractability, solvent swelling and free swelling index of selected high-volatile bituminous coals decreased upon drying under vacuum at 80–120 °C overnight. The temperature necessary to induce these changes varied among the coals. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57268f1a4f0f82676b7aa9b377899494
https://doi.org/10.1016/0016-2361(94)90188-0
https://doi.org/10.1016/0016-2361(94)90188-0
Autor:
Masaharu Nishioka
Publikováno v:
Fuel. 72:1725-1731
Initial volumetric swelling in tetrahydrofuran of pyridine-unextracted parts from subbituminous coal and lignite showed no dependence of their concentration, and was smaller than that of their pyridine extracts. These results are opposite to those ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c103865c06a7bf752d6545ed0285630f
https://doi.org/10.1016/0016-2361(93)90362-6
https://doi.org/10.1016/0016-2361(93)90362-6
Autor:
Wallace Laird, Masaharu Nishioka
Publikováno v:
Fuel. 72:1011-1014
Interactions between coal and a coal liquid and also between coal and various standard compounds were investigated. The mixtures were soaked in cyclohexane under nitrogen at 25, 200 and 350 °C for 2 h, and recoveries of the coal liquid and standard
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77ada21fed0b59345316909606f6ce3c
https://doi.org/10.1016/0016-2361(93)90302-i
https://doi.org/10.1016/0016-2361(93)90302-i
Autor:
Masaharu Nishioka, Robert S. Tomich
Publikováno v:
Fuel. 72:1007-1010
Ligand exchange chromatography using CuCl 2 has been developed for the isolation of aliphatic sulfur compounds in fossil fuels. The procedure is simple and non-reactive. Aliphatic sulfur compounds form stronger ligands with CuCl 2 , because of their
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d648ef7f0a7f374f2914ded3692dc4b6
https://doi.org/10.1016/0016-2361(93)90301-h
https://doi.org/10.1016/0016-2361(93)90301-h