Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Herbert L. Retcofsky"'
Publikováno v:
Energy & Fuels. 11:739-746
Variable-temperature EPR studies of Illinois No. 6 coal, its pyridine extract, and samples of each after treatment with known donor and acceptor molecules are reported. The purpose of the study was to explore the origin of the EPR signals near g = 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17e40343ee52c2338e0b971352179d51
https://doi.org/10.1021/ef970006i
https://doi.org/10.1021/ef970006i
Autor:
Robert B. Clarkson, Wei Wangi, R.L. Belford, Richard F. Sprecher, Herbert L. Retcofsky, Kurt S. Rothenberger
Publikováno v:
Fuel. 73:1600-1605
Three British coals and their iodine treated counterparts were examined in order to investigate the increase in electron paramagnetic resonance (e.p.r.) signal intensity that occurs upon iodine uptake. The iodine is not removed by vacuum. Scanning el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d43d340849810cacbc2a2d515bada66
https://doi.org/10.1016/0016-2361(94)90138-4
https://doi.org/10.1016/0016-2361(94)90138-4
Publikováno v:
Advances in Chemistry ISBN: 9780841218666
Magnetic Resonance of Carbonaceous Solids
Magnetic Resonance of Carbonaceous Solids
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0795e0cb7c8e1e5a46e9c1579a123588
https://doi.org/10.1021/ba-1993-0229.ch031
https://doi.org/10.1021/ba-1993-0229.ch031
Autor:
Herbert L. Retcofsky, Richard F. Sprecher, Dennis H. Finseth, Daniel L. Cillo, Richard G. Lett
Publikováno v:
Fuel. 64:1718-1722
A method for quantitative measurement of the hydrogen utilized in different modes of reaction has been applied to hydroliquefaction reactions at temperatures ranging from 375 to 450 °C. The analytical approach is capable of differentiating hydrogen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ab59a6a93bfda9845de802ea27e0341
https://doi.org/10.1016/0016-2361(85)90399-0
https://doi.org/10.1016/0016-2361(85)90399-0
Publikováno v:
Analytical Chemistry. 59:1726-1731
Measurements of the intensities of the electron spin resonance (ESR) absorptions, in the g approx. 2 region of the spectrum, of the title materials were performed over a wide range of temperatures. Linear correlations of the measured intensities vs.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7b3c2aaae1432f6e1ed45672a03251d
https://doi.org/10.1021/ac00140a030
https://doi.org/10.1021/ac00140a030
Publikováno v:
Fuel. 62:473-476
Electron spin resonance studies of the early stages of carbonization of a high-volatile A bituminous coal have been used to detect and quantify transient free radicals present in the coal pyrolysate. Free radical (spin) populations are converted from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fdde8609c5afa0c6bc943e588df63a8
https://doi.org/10.1016/0016-2361(83)90015-7
https://doi.org/10.1016/0016-2361(83)90015-7
Publikováno v:
Fuel. 57:421-423
The carbon aromaticities (fa) of vitrinite, exinite, micrinite and fusinite from a high-volatile A bituminous coal have been determined by 13C1H cross-polarization nuclear magnetic resonance spectrometry. Values of fa for the four macerals were fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43bda455ba95de500b58ffc6f3dabba2
https://doi.org/10.1016/0016-2361(78)90057-1
https://doi.org/10.1016/0016-2361(78)90057-1
Autor:
HARVEY I. ABELSON, KEITH D. BARTLE, ROBERT W. FREEDMAN, WALTER W. FOWKES, P.H. GIVEN, JOHN S. GORDON, RYOICHI HAYATSU, R.G. JENKINS, DERRY W. JONES, LAWRENCE F. KING, THOMAS A. LINK, WILLIAM A. LÖWENBACH, O.P. MAHAJAN, HARRY MARSH, DUNCAN G. MURCHISON, C.S.B. NAIR, HOOSHANG PAKDEL, JOHN W. PATRICK, HERBERT L. RETCOFSKY, JANET SMITH, JAMES G. SPEIGHT, MARTIN H. STUDIER, D.N. TODOR, N.I. VOINA, P.L. WALKER, HERBERT C. WILKINSON, RANDALL E. WINANS, RICHARD F. YARZAB
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::850f9c4355c524ea26b31cc6c468c409
https://doi.org/10.1016/b978-0-12-399902-3.50001-4
https://doi.org/10.1016/b978-0-12-399902-3.50001-4
Autor:
HARVEY I. ABELSON, KEITH D. BARTLE, ROBERT W. FREEDMAN, WALTER W. FOWKES, P.H. GIVEN, JOHN S. GORDON, RYOICHI HAYATSU, R.G. JENKINS, DERRY W. JONES, LAURENCE F. KING, THOMAS A. LINK, WILLIAM A. LÖWENBACH, O.P. MAHAJAN, HARRY MARSH, DUNCAN G. MURCHISON, C.S. B. NAIR, HOOSHANG PAKDEL, JOHN W. PATRICK, HERBERT L. RETCOFSKY, JANET SMITH, JAMES G. SPEIGHT, MARTIN H. STUDIER, D.N. TODOR, N.I. VOINA, P.L. WALKER, HERBERT C. WILKINSON, RANDALL E. WINANS, RICHARD F. YARZAB
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b09b73c1911ec50d28bb37a120397eb
https://doi.org/10.1016/b978-0-12-399902-3.50004-x
https://doi.org/10.1016/b978-0-12-399902-3.50004-x
Autor:
Thomas A. Link, Herbert L. Retcofsky
Publisher Summary The need for compositional data on coal and environmentally acceptable fuels from coal was dictated primarily by the recent energy shortages experienced by many nations. Compositional data are important not only in evaluating fuels
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c20f9818c61db4bb9c86b77006ebf7e
https://doi.org/10.1016/b978-0-12-399902-3.50011-7
https://doi.org/10.1016/b978-0-12-399902-3.50011-7