Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Lea Luik"'
Autor:
Mihhail Bitjukov, Hans Luik, Vilja Palu, Ille Johannes, Natalia Vink, Lea Luik, Kristjan Kruusement, Igor Nechaev, Julia Krasulina, Laine Tiikma, Hindrek Tamvelius
Publikováno v:
Fuel Processing Technology. 124:115-122
Possibilities for upgrading of the Estonian shale oil rectification residuum boiling above 360 °C by hydroconversion were studied for the first time with the aim to maximize the fractions boiling below 360 °C and between 275–360 °C. The single-
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 108:265-273
Spruce needles, reed, peat and oil shale samples, representing available natural resource of solid organic feedstock, were submitted to the hydrothermal conversion. Non-catalytic liquefaction (NL – 380 °C, 4 h, feed-to-water ratio 1:3) and Ni-cata
Publikováno v:
American Journal of Analytical Chemistry. :173-180
This study aimed at the assessment of applicability of static supercritical carbon dioxide extraction method (SFE) in biogeochemical characterization of oil shales as an alternative to the standard Soxhlet extration. A comparative investigation on yi
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 85:497-501
This work deals with thermochemical conversion of peat into solvent-soluble oil and volatile gaseous products by using pyrolysis and catalytical hydrocracking methods. Distribution of liquid compounds between solubilized in water, benzene, and in ace
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 85:508-513
A systematic experimental study of the effect of reaction time on the low-temperature pyrolysis of Baltic oil shale (kukersite) in autoclaves at nominal temperatures 340–380 °C was carried out. The results show an increase in the yields of gas and
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 85:492-496
Two different Estonian oil shales, peat, and willow biomass were submitted to supercritical water conversion at unified operating conditions. The yield and chemical composition of conversion products were investigated by chromatographic, FTIR-spectro
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 79:191-195
Copyrolysis of heavy shale oil with polyethylene (PE) waste in autoclaves at various temperatures and times has been studied. It is shown that the copyrolysis improves the quality of the oil obtained and gives possibility to transform the wastes into
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 79:121-127
Pine bark, characterized by high oxygen content (41 wt.%) typical of biomass, was submitted to pyrolysis at varied conditions in order to follow the regularities of oxygen transformation. The effect of water, a catalyst and molecular hydrogen on the
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 79:205-209
Different types of forest residual biomass, including pine wood, pine bark and spruce needles, and Estonian Kukersite oil shale, were parallelly subjected to the slow pyrolysis in similar conditions. A Fischer assay, modeling industrial semi-coking r
Publikováno v:
Oil Shale. 29:206
The effect of organic matter (OM) content and type of mineral matter (MM) on the oil yield at retorting of different natural oil shale samples, those demineralized by acid treatment ones, and the kukersite OM flotation con- centrate mixed with indivi