Results 21 to 30 of about 1,081,314 (373)
Hydrotreating of waste lube oil by rejuvenated spent hydrotreating catalyst
Egyptian Journal of Petroleum, 2014 Large quantities of catalysts are used in the Egyptian refining industry for the purification and upgrading of various petroleum streams. These catalysts gradually lose activity through deactivation with time and the spent catalysts were usually ...
Sadeek A. Sadeek +4 more
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Physical modelling of degassing process by blowing of inert gas [PDF]
, 2018 This paper deals with the possibilities of using physical modelling to study the degassing of metal melt during its treatment in the refining ladle. The method of inert gas blowing, so-called refining gas, presents the most common operational technology ...
Gryc, Karel +6 more
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Highly effective ionic liquids for biodiesel production from waste vegetable oils
Egyptian Journal of Petroleum, 2015 As conventional energy sources deplete, the need for developing alternative energy resources which are environment friendly becomes more imperative. Vegetable oils are attracting increased interest in this purpose.
Fathy A. Yassin +5 more
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Theoretical Computer Science, 1997 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Refinement of Intentions [PDF]
, 2016 According to Bratman, future-directed intentions are high-level plans. We view such plans as high-level actions that can typically not be executed directly: they have to be progressively refined until executable basic actions are obtained. Higher- and lower-level actions are linked by the means-end relation, alias instrumentality relation.
Zhanhao Xiao +4 more
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Characterization of various zinc oxide catalysts and their activity in the dehydration-dehydrogenation of isobutanol [PDF]
Journal of the Serbian Chemical Society, 2008 Mono and bifunctional zinc oxide catalysts were prepared to study their activity in the catalytic conversion of isobutanol. The prepared catalysts were characterized by X-ray diffraction analysis and nitrogen adsorption measurements.
Saad Lamia, Riad Mary
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Agrointek, 2023 Calophyllum seeds produce high-yielding non-edible oils, so Calophyllum plants have great potential as a source of biofuels. To meet biofuel quality standards, crude Calophyllum oil must first be refined.
Ika Amalia Kartika, Muhamad Ryan Pratama
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Refining Action Segmentation with Hierarchical Video Representations
IEEE International Conference on Computer Vision, 2021 In this paper, we propose Hierarchical Action Segmentation Refiner (HASR), which can refine temporal action segmentation results from various models by understanding the overall context of a given video in a hierarchical way.
Hyemin Ahn, Dongheui Lee
semanticscholar +1 more source
Egyptian Journal of Petroleum, 2017 One of the most significant procedures in oil refineries is naphtha catalytic reforming unit in which high octane gasoline is gained. Normally, in oil refineries, flow instability in the composition of feedstock can affect the product quality. The aim of
Hussien A. Elsayed +4 more
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Analytica, 2023 Argan kernels, fruits regurgitated by goats, are 30% cheaper than the regular kernels used to prepare food argan oil. The use of such argan kernels as a cosmetic ingredient, after refining, is thus economically attractive.
Rabha Aissa +9 more
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