Results 231 to 240 of about 66,438 (265)
Biosolubilization of lignite [PDF]
Applied Biochemistry and Biotechnology, 1989 The rates at which lignite is solubilized by the extracellular products of aPenicillium fungus designated as RWL-5, four substrains isolated from RWL-5 andStreptomyces flavovirens were examined. The effects of lignite surface oxidation were also examined. Comparison of data generated from studies with the two microorganisms suggested thatS. flavovirens
Richard T. Moolick +2 more
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Effect of lignite properties on reactivity of lignite
Energy Conversion and Management, 2001The purpose of this study is to relate the combustion reactivity of lignite to its physical and chemical properties. Non-isothermal thermogravimetry, where the sample whose temperature increased at a linear rate (40 K/min) was heated in air, has been used to investigate the combustion reactivities of 25 lignite samples originating from different areas ...
Serdar Yaman +3 more
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International Journal of Coal Geology, 1988
Abstract Samples have been taken systematically from a sequence of immature lignite deposited as a large reserve in Elbistan (37° 48′ N 37° 51′E) 1.5–2 m.y. ago during the Pliocene-Pleistocene transition. The lignite has a high volatile content of 60–70% and a huminite reflectance of 0.27 ± 0.03.
Dogru A.R. +4 more
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Abstract Samples have been taken systematically from a sequence of immature lignite deposited as a large reserve in Elbistan (37° 48′ N 37° 51′E) 1.5–2 m.y. ago during the Pliocene-Pleistocene transition. The lignite has a high volatile content of 60–70% and a huminite reflectance of 0.27 ± 0.03.
Dogru A.R. +4 more
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Geological Society, London, Special Publications, 1997
Abstract The distribution of lignite deposits in Turkey is such that in general the Eocene lignites are in northern Turkey, Oligocene lignites are in northwestern Turkey, Miocene lignites are in western Turkey, and Pliocene-Pleistocene lignites are in eastern Turkey.
Nakoman E., Inaner H.
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Abstract The distribution of lignite deposits in Turkey is such that in general the Eocene lignites are in northern Turkey, Oligocene lignites are in northwestern Turkey, Miocene lignites are in western Turkey, and Pliocene-Pleistocene lignites are in eastern Turkey.
Nakoman E., Inaner H.
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Biology Bulletin, 2007
The first demonstration that samples of lignite at a depth of 10 m are considerably enriched in bacteria is reported. According to direct microscopy, the abundance of bacteria was about 107 cells/g. About 70% of cells had intact cell membranes and small size, which points to their anabiotic state.
L. V. Lysak +2 more
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The first demonstration that samples of lignite at a depth of 10 m are considerably enriched in bacteria is reported. According to direct microscopy, the abundance of bacteria was about 107 cells/g. About 70% of cells had intact cell membranes and small size, which points to their anabiotic state.
L. V. Lysak +2 more
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Low-temperature oxidative modification of lignites and lignite-based cokes [PDF]
Russian Journal of Physical Chemistry, 2006 The kinetics of oxidation of lignites and cokes with ozone in the gas and liquid phases and the composition of oxidation products were studied. The surface area and porosity were measured before and after ozonization. Ozonization increased the surface area largely because of the growth of micro-and mesopores.
L.E. Gorlenko +4 more
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Biodesulfurization of Cayirhan Lignites
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2006In this study, the lignite was improved oxidizing sulfur compounds by Thiobacillus thiooxidans and Thiobacillus ferrooxidans bacteria. Experiments in the batch reactors have been carried out 20% aqueous suspension of coal samples. Sugar beet molasses was used as the bacterial substrate.
Guru, METİN +3 more
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Effects of Lignite Properties on the Hydroliquefaction Behavior of Representative Turkish Lignites
Energy Sources, 1992This paper reports on the conversion and yield data obtained for hydroliquefaction of 11 different Turkish lignites in tetralin, anthracene, and creosote oils with or without catalyst at 440{degrees}C and 80 bar that were correlated with the lignite properties obtained from proximate, ultimate, and petrographic analyses.
DINCER, S, ONER, Mualla, BOLAT, E
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Senckenberg Lignite: A Lignitized Wood with Apparently Original Cellulose and Lignin
Science, 1969A lignitized wood of Miocene derivation has been identified to the genus Taxodium . The cell walls of latewood tracheids are Mäule positive. A structurally intact lignin residue is obtained after incubation of the wood in 72 percent sulfuric acid.
Philip R. Morey, Elsie D. Morey
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Biosolubilisation of Chinese lignite
Energy, 2009Abstract The biosolubilisation of coal is a promising coal processing technology for converting solid coal to liquid oil at ambient conditions. In this study, the biosolubilisation of Chinese lignite was studied using a fungus isolated from decaying wood. The intensity of biosolubilisation was determined by estimating the liquid formation time and by
Kaiyi Shi +3 more
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