Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Barry D. Batts"'
Publikováno v:
Organic Geochemistry. 36:1523-1532
The geochemical transformations of a number of individual model sulfur compounds were investigated using laboratory hydrous pyrolysis under conditions of constant temperature between 200 and 330 °C and in the presence of low-sulfur brown coal. The r
Publikováno v:
Organic Geochemistry. 36:655-661
Geochemical analyses of the fuel used for the motor driven sledges used by the explorer Robert Falcon Scott for his 1911/1912 quest to the South Pole indicate that it is a straight run gasoline. The presence of bicadinanes, oleanane and other oleanoi
Publikováno v:
Chemical Geology. 204:345-368
Reported field observations, laboratory studies and transplant experiments confirm that lichens are affected by pollutants. The ubiquitous nature of lichens and their susceptibility to the environment suggest that their response to variations in atmo
Publikováno v:
Applied Geochemistry. 18:1507-1515
Adsorption studies have been conducted at pH 4, 6 and 8 to assess the effect of fulvic acid on arsenate adsorption to ferrihydrite and gibbsite. The studies compared the adsorption of arsenate on the mineral surfaces in the absence of fulvic acid, to
Publikováno v:
Rapid Communications in Mass Spectrometry. 16:785-789
The self-esterification of two fulvic acid model compounds in methanolic solvents was studied by electrospray ionization mass spectrometry (ESI-MS). The strongly acidic tetrahydrofurantetracarboxylic acid rapidly self-esterified to form mono- and dim
Publikováno v:
Organic Geochemistry. 29:1469-1485
Hydrous pyrolysis of three Australian brown coals in the presence of cadmium acetate (CdOAc) indicates that as much as 77% of the original organic sulphur may be generated as H 2 S. In the absence of CdOAc much of the generated H 2 S was re-adsorbed
Autor:
Michael A. Wilson, Martin L. Gorbaty, Kezhan Yang, Simon X.J. He, Mervyn A. Long, Barry D. Batts, Peter S. Maa, Moetaz I. Attalla
Publikováno v:
Fuel. 76:1105-1115
The reactivities of Australian coals and one American coal with methane or methane-hydrogen mixtures, in the range 350–400°C and a range of pressures (6.0–8.3 MPa, cold) have been examined. The effects of aluminophosphates (AlPO) or zeolite cata
Autor:
Ria Pardede, Barry D. Batts
Publikováno v:
Fuel. 75:1132-1138
Aluminium citrate has been identified as the major component of a sediment formed as a result of microbial degradation of a jet fuel at the fuel-water interface. The structure of the sediment was determined using a combination of wet chemistry, eleme
Publikováno v:
Organic Geochemistry. 23:71-80
Phenanthrene, anthracene and pyrene have been pyrolysed in sealed reactors in the presence of coal. No methylation occurs at 220°C but increasing amounts of methylaromatics are formed at temperatures to 350 or 400°C. This methylation provides suppo
Publikováno v:
Fuel. 73:1899-1903
All isomers of methylphenanthrene are formed when phenanthrene is reacted with methane and/or long chain n -alkanes in the presence of coals or kaolinite in closed steel reactors in the range 230–360 °C. In particular, the 3-methylphenanthrene iso