Download or read book Contribution l tude de la d composition catalytique de CO par le fer 2CO CO 2 C written by J. F. Meroc and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contribution l tude de la d composition catalytique de CO par le fer 2CO CO2 C written by Jean Fabian Meroc and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contribution l tude de la d composition catalytique de CO par le fer 2CO CO C written by Jean-Fabien Méroc and published by . This book was released on with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book OBTENTION D HYDROCARBURES LEGERS VIA CO H 2 CO 2 H 2 SUR MATERIAUX COMPOSITES FE CO METAL written by FABRICE.. TIHAY and published by . This book was released on 2000 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES PRINCIPAUX CATALYSEURS UTILISES POUR L'HYDROGENATION DU MONOXYDE DE CARBONE (OU SYNTHESE FISCHER-TROPSCH) POUR LA PRODUCTION D'HYDROCARBURES SONT A BASE DE FER ET/OU DE COBALT. AUSSI BIEN POUR LES CATALYSEURS A BASE D'OXYDE DE FER QUE POUR CEUX A BASE DE COBALT, UN TRAITEMENT REDUCTEUR SOUS HYDROGENE ET/OU MONOXYDE DE CARBONE EST NECESSAIRE A LEUR MISE EN REGIME. AINSI LA PREPARATION DE CATALYSEURS A BASE DE FER ET DE COBALT, CONTENANT UNE PHASE METALLIQUE ET UNE PHASE OXYDE SANS TRAITEMENT REDUCTEUR PREALABLE, POUR LA PRODUCTION D'HYDROCARBURES INSATURES SEMBLE INTERESSANTE. LA SYNTHESE DE TELS MATERIAUX A ETE REALISEE PAR VOIE DOUCE ET REPOSE SUR LA DISMUTATION DU FE(II) EN FE(0) ET EN MAGNETITE EN MILIEU AQUEUX FORTEMENT BASIQUE ET CHAUFFE. EN PRESENCE DE COBALT(II), LA REACTION D'OXYDO-REDUCTION FE 0 + CO 2 + FE 2 + + CO 0 A LIEU. AINSI, UN MATERIAU NANO-COMPOSITE, STABLE A L'AIR, CONTENANT UN ALLIAGE (CO-FE) ET UNE MAGNETITE DE COBALT EST OBTENU. LA FORMULE DE CE COMPOSITE PEUT S'ECRIRE (CO-FE) CO XFE 1 XO 4. LE MATERIAU EST COMPOSE PRINCIPALEMENT DE MAGNETITE AU COBALT ET D'UN ALLIAGE (CO-FE) DE STRUCTURE C.C. ISOMORPHE DE -FE. LA TRANSFORMATION DE LA STRUCTURE C.C. EN STRUCTURE C.F.C. DE L'ALLIAGE (CO-FE), OBSERVEE POUR UNE TEMPERATURE SUPERIEURE A 430\C, REVELE UN ENRICHISSEMENT DE L'ALLIAGE EN COBALT. CET ENRICHISSEMENT EN COBALT S'EXPLIQUE PAR LA REACTION D'OXYDO-REDUCTION ENTRE LE FE(0) DE L'ALLIAGE ET LE CO(II) DE LA PHASE SPINELLE. L'ETUDE A CONSISTE A RELIER LES DIFFERENTES CARACTERISTIQUES DU CATALYSEUR (RAPPORT CO/FE, ETAT DE SURFACE OBSERVE PAR XPS, MET, MEB) AUX PROPRIETES CATALYTIQUES. AINSI, ON OBSERVE QU'UN CATALYSEUR AYANT SUBI UN TRAITEMENT FLASH SOUS ARGON A 800\C, CONDUIT A UNE SELECTIVITE VERS DES HYDROCARBURES LOURDS (>70% EN MASSE). CECI A ETE RELIE A LA PRESENCE DE CO 3O 4 EN SURFACE DU CATALYSEUR. EN REVANCHE, POUR LES CATALYSEURS N'AYANT PAS SUBI DE TRAITEMENT THERMIQUE, LA SELECTIVITE EST ORIENTEE VERS LES HYDROCARBURES LEGERS (C 2-C 4).
Download or read book Effet du potassium sur un catalyseur composite Fe Co C en synth se d hydrocarbures written by Denis Boudouvas and published by . This book was released on 1989 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETUDE DE LA PROMOTION PAR LE POTASSIUM DU CATALYSEUR COMPOSITE FE-CO-C, C'EST-A-DIRE DE L'AMELIORATION DE SON ACTIVITE CATALYTIQUE ET DE SA SELECTIVITE EN ALCENES. L'ADDITION DE POTASSIUM EST REALISEE SOIT PAR IMPREGNATION PAR UNE SOLUTION AQUEUSE DE K#2CO#3, SOIT PAR LA FORMATION INTERMEDIAIRE D'UN COMPOSE D'INSERTION AVEC LE CARBONE DE FORMULE KC#3#2. L'EVOLUTION DE LA SELECTIVITE DES CATALYSEURS PROMUS ET NON PROMUS PAR LE POTASSIUM EST ETUDIEE A DES CONVERSIONS EN MONOXYDE DE CARBONE ANALOGUES A CELLES D'UN PROCEDE INDUSTRIEL. DES TESTS CATALYTIQUES A FAIBLE CONVERSION ET DES MESURES DE CHIMISORPTION DE GAZ REAGISSANTS SONT EFFECTUES
Download or read book Contribution l tude du catalyseur au fer utilis dans la synth se d hydrocarbures partir d oxyde de carbone written by Jacques Antheaume and published by . This book was released on 1934 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.
Download or read book Natural Gas Conversion written by A. Holmen and published by Elsevier. This book was released on 1991-05-27 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings reflect the extensive fundamental and applied research efforts that are currently being made on the conversion of gas, in particular on the direct conversion of methane. The Symposium in Oslo focused on the following topics: Direct conversion of methane, Fischer-Tropsch chemistry, methanol conversion and natural gas conversion processes. The main aim was to present the state-of-the-art and progress currently being made within each of these areas. The book contains the papers presented and includes plenary lectures, short communications and posters. The papers will be of interest to scientists and engineers working in the field of gas conversion, transportation fuels, primary petrochemicals and catalysis.
Download or read book The Planetarium written by Nathalie Sarraute and published by Deep Vellum Publishing. This book was released on 2023-01-31 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: A young writer has his heart set on his aunt's large apartment. With this seemingly simple conceit, the characters of The Planetarium are set in orbit and a galaxy of argument, resentment, and bitterness erupts. Telling the story from various points of view, Sarraute focuses below the surface, on the emotional lives of the characters in a way that surpasses even Virginia Woolf. Always deeply engaging, The Planetarium reveals the deep disparity between the way we see ourselves and the way others see us.
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.
Download or read book Hydrogenation written by S. David Jackson and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-09-24 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive overview of modern hydrogenation methods used in organic synthesis. In clearly structured chapters, the authors cover the catalysts, scope and limitations of their application, and the techniques for hydrogenation of carbon-carbon, carbon-heteroatom and heteroatom-heteroatom multiple bonds.
Download or read book Modern Styrenic Polymers written by John Scheirs and published by John Wiley & Sons. This book was released on 2003-03-28 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title addresses the latest developments in the field, covering the major advances that have occurred over the past five years in the polymerization and structure of new generation polystyrenes that are broadening its scope of application. It covers the advent of branched polystyrenes, syndiotactic polystyrene, high-molecular weight general purpose PS, styrenic interpolymers, and clear SBS copolymers Presents voluminous research previously only reported at conferences in one reference Unique coverage of a topic not found in the field
Download or read book Gender Matters written by Dennis van der Veur and published by Council of Europe. This book was released on 2007-01-01 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: "'Gender Matters' is a manual aimed to assist educators and youth leaders work on issues of gender and gender-based violence with young people. This publication presents theoretical information, methods and resources for education and training activities, along with concrete exercises that users can put into practice in their daily work. Violence is a serious issue which directly affects the lives of many young people. It often results in lasting damage to their well-being and integrity, putting even their lives at risk. Gender-based violence, including violence against women, remains a key human rights challenge in contemporary Europe and in the world. Working with young people on human rights education is one way of preventing gender-based violence from occurring. By raising awareness on why and how it manifests and exploring its impact on people and in society, gender-based violence will no longer go undetected. Gender really does matter, to women, to men, to young people - to all of us. This manual serves to explore these human rights issues and act upon them."--Book jacket.
Download or read book Quality written by Bo Bergman and published by McGraw-Hill Companies. This book was released on 1994 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces quality management and methodology at an undergraduate level. Divided into five parts, it offers a comprehensive review of the subject and includes appendices of basic statistics.
Download or read book Agrochimica written by International Atomic Energy Agency and published by . This book was released on 1977 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic matter and soil productivity; Turnover of plant residues; Mineralization of organic compounds; Dynamics of organic forms of nitrogen; Nitrogen economy; Biodegradation of organic matter; Biochemical transformation of organic matter; Bitumens in soil organic matter; Characterization of humic acids; Carbon dating; Modern techniques and their implact on soil organic matter research; Sludge; Soil organic matter components and plant metabolism; Interaction between agrochemicals and organic matter; Peat.
Download or read book Plutoniun written by U.S. Atomic Energy Commission and published by . This book was released on 1964 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Basic Technics in Ecological Farming Techniques de Base en Agriculture Biologique Grunds tzliche Verfahren der kologischen Landwirtschaft Le Maintien de la Fertilit des Sols The Maintenance of Soil Fertility Die Erhaltung der Bodenfruchtbarkeit written by Stuart Hill and published by Birkhäuser. This book was released on 2013-12-14 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
