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Technological Aspects of Refuse Fats, Pretreatment and Retrofitting

Journal of Environmental Science and Engineering(B) 2021年第2期10卷 41-54页

作者： Kovács JAndrás Hodován István Ferrari Ben KUKK K+F Ltd. Budapest 1083Hungary atev zrt Budapest 1097Hungary QS Biodiesel Ltd. London W1J 8DJUK

Scope of the article is to discuss pretreatment of refuse,nonedible animal fats into biodiesel feedstock to improve yields of standard quality biofuel at low operational *** are equally viable for 2nd generation biodiesel processing technologies and to extend catalysts *** fats are vulnerability to storage conditions having significant influence on loss of market *** concerns expressed in terms of high levels of FFA(Free Fatty Acid),moisture,impurities have been *** constituents are present in these feedstocks in complicated,stubborn colloid chemical structures with direct impacts on *** edible grade oil techniques have been revisited but failed to produce high market-value biodiesel feedstock at acceptable levels of yield and *** refinery techniques,selective solvent refining and vacuum distillation have also not met *** and direct esterification conversion techniques were efficient in reduction of FFA and impurities to acceptably low level at reasonable *** catalyzed direct esterification proved to be lower cost technique to produce good quality biodiesel feedstock that can be processed in first generation alkali-based transesterification and hydrotreatment techniques ***-Sol apolar solvent born technology has been shown to be the best performing option in *** esterification was demonstrated in a truly continuous,counter current,solvent born mode with substantial energy and resource efficiency gains.

关键词： Waste to fuel renewable energy biodiesel resource efficiency

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Basic Magmatic Formations within the Eastern Part of the Bukk Mountains, North-East Hungary

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Journal of Earth Science and Engineering 2015年第4期5卷 221-229页

作者： Adam Bartok MECSEKERC zrt. H-7633 Pecs Esztergar Lajos u. 19. Pecs Hungary Faculty of Science and Technology Department of Mineralogy and Geology University of Debreeen Debrecen H-4032 Hungary

The macro- and microscopic results were that this body of basalt tectonically heavily loaded, strongly altered by clay minerals and characterized by hydro-metasomatic alteration. The geochemical analyzes revealed that the original magma could be a mantle origin of high iron and magnesium containing basalt （tholeiites, 10%-15%）. As regards to the palaeogeographic environment, it can be said that due to the periodic sea flooding, it pushed into a lower area, covered with sediment where the surrounding areas were highlighted （biikkszentkereszt and bukkszentlaszl6 tufts）.

关键词： Szinva metabasalt formation Bttkkian magmatism upper szinva source region metabasalt tholeiitic magma intracontinental volcanism.

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