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Amelioration De Catalyseurs Dhds Co Mo Alumine
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Book Synopsis Amélioration de catalyseurs d'hds co-mo/alumine by : Franck Dumeignil
Download or read book Amélioration de catalyseurs d'hds co-mo/alumine written by Franck Dumeignil and published by Omn.Univ.Europ.. This book was released on 2010 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Des catalyseurs Co-Mo/alumine ont t synth tis s par voie sol-gel int grale ou par impr gnation d''une alumine sol-gel. Les catalyseurs pr par s par impr gnation pr sentent une activit en HDS 65 % plus importante que celle d''un catalyseur industriel de r f rence. Parmi les deux s ries de solides impr gn s, celle basse teneur en Mo (10 % en masse) semble tre constitu e d''une phase active particuli re en faible interaction avec le support, ce qui expliquerait l'' volution croissante de l''activit en fonction de la teneur en Co alors que pour des catalyseurs dits "classiques," une courbe en volcan est observ e. Afin de limiter l''HYD des mol cules insatur es et conf rer une fonction isom risante pour la pr servation de l''indice d''octane, du bore a t introduit lors de la synth se sol-gel de l''alumine. Un mod le de structure des solides s ch s et calcin s bas sur la RMN, l''ICP, la physisorption d''azote, la SPX et la DRX est propos . Ces solides ont t test s en HDS du thioph ne en pr sence de pent-1- ne. Si l''HYD diminue de mani re notable, l''isom risation n''est que peu augment e. Cependant, la meilleure formulation donne une conversion totale en HDS, ce qui est prometteur.
Book Synopsis Améliorations de catalyseurs d'hydrodésulfuration Co-Mo-alumine et modification du support par ajout de bore by : Franck Dumeignil
Download or read book Améliorations de catalyseurs d'hydrodésulfuration Co-Mo-alumine et modification du support par ajout de bore written by Franck Dumeignil and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Des catalyseurs co-mo / al#2o#3 ont ete synthetises par voie sol-gel integrale ou par impregnation d'une alumine prealablement elaboree par voie sol-gel. Apres sulfuration, les catalyseurs prepares par impregnation presentent une activite en hydrodesulfuration 65% plus importante que celle d'un catalyseur industriel de reference. Parmi les deux series de solides impregnes, celle possedant la plus basse teneur en mo (10% en masse) semble etre constituee d'une phase active particuliere en faible interaction avec le support. C'est cette particularite qui expliquerait l'evolution de l'activite qui croit en fonction de la teneur en cobalt alors que pour des catalyseurs dits classiques, on obtient une courbe en volcan avec un maximum pour r = co / co + mo compris entre 0,25 et 0,30. La formulation retenue est un catalyseur impregne avec r = 0,4 et 10% en masse de mo. Afin de limiter l'hydrogenation des molecules insaturees et d'introduire une fonction isomerisante, pour la preservation de l'indice d'octane de la charge petroliere traitee qui sera utilisee comme carburant, du bore a ete introduit lors de la synthese sol-gel de l'alumine. Un modele de structure des solides b - al#2o#3 seches et calcines est propose. Il rend compte des resultats de resonance magnetique nucleaire obtenus par simulations des spectres. Ce modele est conforte par des analyses elementaires, des mesures de surfaces specifiques, la spx et la drx. Les solides ainsi obtenus ont ete testes en hydrodesulfuration du thiophene en presence de pent-1-ene. Si l'hydrogenation diminue de maniere notable, l'isomerisation n'est que tres moderement augmentee par rapport a d'autres formulations testees dans le cadre de ce projet.
Book Synopsis Advanced Oxidation Processes for Water and Wastewater Treatment by : Simon Parsons
Download or read book Advanced Oxidation Processes for Water and Wastewater Treatment written by Simon Parsons and published by IWA Publishing. This book was released on 2004-03-01 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: The suitability of Advanced Oxidation Processes (AOPs) for pollutant degradation was recognised in the early 1970s and much research and development work has been undertaken to commercialise some of these processes. AOPs have shown great potential in treating pollutants at both low and high concentrations and have found applications as diverse as ground water treatment, municipal wastewater sludge destruction and VOCs control. Advanced Oxidation Processes for Water and Wastewater Treatment is an overview of the advanced oxidation processes currently used or proposed for the remediation of water, wastewater, odours and sludge. The book contains two opening chapters which present introductions to advanced oxidation processes and a background to UV photolysis, seven chapters focusing on individual advanced oxidation processes and, finally, three chapters concentrating on selected applications of advanced oxidation processes. Advanced Oxidation Processes for Water and Wastewater Treatment will be invaluable to readers interested in water and wastewater treatment processes, including professionals and suppliers, as well as students and academics studying in this area. Dr Simon Parsons is a Senior Lecturer in Water Sciences at Cranfield University with ten years' experience of industrial and academic research and development.
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Author :Isabel Cristina Pinedo Publisher :State University of New York Press ISBN 13 :1438416164 Total Pages :198 pages Book Rating :4.4/5 (384 download)
Book Synopsis Recreational Terror by : Isabel Cristina Pinedo
Download or read book Recreational Terror written by Isabel Cristina Pinedo and published by State University of New York Press. This book was released on 2016-02-24 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Recreational Terror, Isabel Cristina Pinedo analyzes how the contemporary horror film produces recreational terror as a pleasurable encounter with violence and danger for female spectators. She challenges the conventional wisdom that violent horror films can only degrade women and incite violence, and contends instead that the contemporary horror film speaks to the cultural need to express rage and terror in the midst of social upheaval.
Download or read book Horror written by Xavier Aldana Reyes and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the book horror readers and students need. It will hold you in its grip, leaving you replete with invaluable information about the range, longevity and mutations of the horror genre as it consistently forces you to engage with serious cultural and personal issues.
Book Synopsis Forest Fire Research by : Universidade de Coimbra
Download or read book Forest Fire Research written by Universidade de Coimbra and published by . This book was released on 2010 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt:
