Zobrazeno 1 - 10
of 83
pro vyhledávání: '"G. Domazetis"'
Autor:
John Liesegang, Monthida Raoarun, M. Kuiper, G. Domazetis, Bruce D. James, Ian D. Potter, Daniel P. Oehme
Publikováno v:
Fuel. 93:404-414
The paper presents experimental data of catalytic steam gasification of brown coal containing aqua-iron species, and the chemical mechanism(s) at a molecular level. Experimental techniques provided weight loss from catalysed reaction of char with ste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3efbfad56868072dddbfe1a7ff408616
https://doi.org/10.1016/j.fuel.2011.09.001
https://doi.org/10.1016/j.fuel.2011.09.001
Publikováno v:
Fuel Processing Technology. 91:255-265
Low-rank coals can be processed into non-fouling coal, ultra-low ash coal, and coals containing catalysts. Systematic studies of the action of acid to reduce ash in a number of low-rank coals have shown total ash reduction varied from 96% to 30%; the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57f6d0d4ea33307711d6beab01daeccb
https://doi.org/10.1016/j.fuproc.2009.10.006
https://doi.org/10.1016/j.fuproc.2009.10.006
Publikováno v:
Energy & Fuels. 22:3994-4005
Low-rank coal is a complex mixture; consequently, it is necessary to develop simpler molecular representations for computational modeling. Our modeling objective has been to develop molecules suitable for semi-empirical (SE) computations of low-rank
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5916a2eaafd99e3b5f94c6f9d8e0b81
https://doi.org/10.1021/ef800457t
https://doi.org/10.1021/ef800457t
Publikováno v:
Environment, Development and Sustainability. 11:1051-1071
A ‘roadmap’ has been devised for a progressive greening of the Australian chemical industry over the next two decades. The roadmap is based on a set of interactive principles broadly termed ‘economic’, ‘social’, ‘technological’, ‘en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac41f1d4af508039ecbe0cc6650350ad
https://doi.org/10.1007/s10668-008-9166-z
https://doi.org/10.1007/s10668-008-9166-z
Publikováno v:
Applied Catalysis A: General. 340:105-118
Pyrolysis and catalytic steam gasification of brown coal containing iron hydroxyl complexes have been investigated experimentally and with semi-empirical and density functional theory molecular modelling. Pyrolysis yielded mainly CO 2 , CO, and reduc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b92f9c386fbcb0f2f42ccfed59cb21ff
https://doi.org/10.1016/j.apcata.2008.01.037
https://doi.org/10.1016/j.apcata.2008.01.037
Treatments of low rank coals for improved power generation and reduction in Greenhouse gas emissions
Publikováno v:
Fuel Processing Technology. 89:68-76
Reduction in ash constituents by water washing, and also at specific pH values, was systematically studied for three low-rank coals. Acid treatment removed inorganic constituents if accompanied by efficient water washing; at elevated temperatures thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6effc7566e6ac5f897017c628ab66eeb
https://doi.org/10.1016/j.fuproc.2007.07.004
https://doi.org/10.1016/j.fuproc.2007.07.004
Publikováno v:
Energy & Fuels. 21:2531-2542
This paper is an overview of the calculations performed on various molecular models of char containing iron species, developed from a brown coal model with iron complexes, to mimic pyrolysis over 200−700 °C. The semiempirical (SE) optimization of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::327d83e422947c0f0017f149930fb82a
https://doi.org/10.1021/ef070129v
https://doi.org/10.1021/ef070129v
Autor:
Raymond C. Everson, Cornelia G. C. E. van Sittert, Hein W.J.P. Neomagus, Jenny M. Jones, Gregory N. Okolo, G. Domazetis, Jonathan P. Mathews, Daniel Van Niekerk, Mokone J. Roberts
Experimental measurements and DFT atomistic modelling were conducted to elucidate the mechanisms for gasification chemistry of char with CO2 gas. The molecular models used were based on experimental representations of coal chars derived from the vitr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::003c23919083f81edacb801bcbb1db57
https://hdl.handle.net/10394/18569
https://hdl.handle.net/10394/18569
Publikováno v:
Energy & Fuels. 20:1997-2007
The concentrations profiles of CO2 and CO have been measured at 150−600 °C from the pyrolysis, at slow heating rates, of acid-washed brown coal and brown coal containing iron hydroxyl complexes. CO2 formation was greater at low temperatures, but C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4aabeb954434afe5d44340f50027dc2a
https://doi.org/10.1021/ef060114h
https://doi.org/10.1021/ef060114h
Autor:
G. Domazetis, John Liesegang, Narelle Brack, R. Glaisher, Bruce D. James, Paul J. Pigram, Monthida Raoarun
Publikováno v:
Energy & Fuels. 20:1556-1564
Detailed studies have been carried out on the distribution of organic functional groups and inorganic species in as-received (ar) and acid-washed (aw) brown coals using elemental analysis, energy dispersive X-ray analysis (SEM-EDX), X-ray photoelectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2054cfa726d2ef1d6a8c1fb8a7c54a66
https://doi.org/10.1021/ef0502251
https://doi.org/10.1021/ef0502251