Results 321 to 330 of about 334,809 (357)
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On total π-electron energy of benzenoid hydrocarbons
Chemical Physics Letters, 1983Abstract Hall's observation that the total π-electron energy E of benzonoid hydrocarbons is a linear functions of the number of Kukule structures is supported by theoretical arguments and extensive numerical work. A rather accurate topological formula for E is obtained.
Ivan Gutman, Svetlana Petrović
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Biosurfactant-enhanced removal of total petroleum hydrocarbons from contaminated soil
Journal of Hazardous Materials, 2009A screening method was developed to evaluate the oil removal capability of biosurfactants for oil-contaminated soils collected from a heavy oil-polluted site. The ability of removing total petroleum hydrocarbon (TPH) from soil by two biosurfactants was identified and compared with that of synthetic surfactants.
Chin-Chi, Lai +3 more
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Benzene and Total Hydrocarbons Exposures in the Downstream Petroleum Industries
AIHAJ - American Industrial Hygiene Association, 2001A review of studies, including both articles published in peer-reviewed journals and reports that were not peer reviewed, regarding occupational exposure to benzene and total hydrocarbons in the downstream petroleum industry operations was performed. The objective was to provide a broad estimate of exposures by compiling exposure data according to the ...
D K, Verma +3 more
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Fate of Total Petroleum Hydrocarbons in the Environment
2019An oil spill is the release of liquid petroleum hydrocarbons (PHs) into the environment, especially the terrestrial (land) and aquatic ecosystems, due to human activities, and is a form of pollution. When the oil is spilled, it normally spreads out and moves in and on the surfaces of spilled sites while undergoing several physico-chemical changes ...
Saranya Kuppusamy +3 more
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Impact of Total Petroleum Hydrocarbons on Human Health
2019Exposure to oil and oil products either directly or indirectly causes severe health issues in humans, and the effects are principally dependent on the nature of contact with the oil spill. Direct exposures include breathing contaminated air (volatile fractions which are emitted as gases) and direct contact with the skin (while walking in contaminated ...
Saranya Kuppusamy +3 more
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Total π-electron energy of benzenoid hydrocarbons
2005The theory of the HMO total π-electron energy (E) of benzenoid hydrocarbons is surveyed with particular emphasis on the research of its dependence on molecular structure. Identities, bounds and approximate formulas for E are considered. The dependence of E on the size of the molecule and on the number of Kekule structures is discussed in detail.
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TOTAL Experience to Reduce Discharge of Hydrocarbons Through Produced Water
Proceedings of SPE International Health, Safety & Environment Conference, 2006Abstract Hydrocarbon production generates aqueous effluents that may contain traces of either hydrocarbon or chemical products which have to be eliminated according to regulations and to the operator's policy, to reduce the potential impact of their discharge on the environment.
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Total combustion kinetics of hydrocarbon fuels
Combustion, Explosion, and Shock Waves, 1969V. L. Zimont, Yu. M. Trushin
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The Oxygenate-Mediated Conversion of COxto Hydrocarbons─On the Role of Zeolites in Tandem Catalysis
Chemical Reviews, 2023Jingxiu Xie, Unni Olsbye
exaly