Recherche


Débuter une nouvelle recherche
Ajouter des filtres :

Vous pouvex utiliser des filtres pour chercher mieux.


Résultats 6221 à 6230 sur un total de 19230.
Résultats trouvés : Documents
Date de publicationTitreAuteur(s)
2017-06-01Partial oxidation of methane on co-precipitated Ni–Mg/Al catalysts modified with copper or iron Authors Djamila Kaddeche, Abdelhamid Djaidja, Akila Barama Publication date 2017/6/1 Journal International Journal of Hydrogen Energy Volume 42 Issue 22 Pages 15002-15009 Publisher Pergamon Description Methane transformation to hydrogen and synthesis gas (CO + H2) by heterogenous catalysts can play an important role to secure the supply of energy, chemicals and fuels in the future. Methane is the main constituent of natural gas and biogas and it is also found in crystalline hydrates at the continental slopes of many oceans. In view of this vast reserves and resources, the use of methane as chemical feedstock has to be intensified. In this present work, (NiMg)Al catalysts doped with Fe or Cu, prepared by co-precipitation method and characterized by different techniques, were studied in the partial oxidation of methane (Treaction = 750 °C, CH4/O2 ratio = 2). The effect of catalyst composition and pre-treatment conditions of these catalysts were investigated. Also, these catalysts show a very high activity and selectivity in the partial oxidation reaction, which depends on the conditions of catalysts preparation. TheDJAIDJA, abdelhamid
2019-10القيادة الإدارية وعلاقتها بالولاء التنظيمي :الشركة الخدماتية للأشغال الكهربائية الهندسة الحضرية والتجهيز (مؤسسة مقاولة أشغال الكهرباء الريفية EWER سابقا)فرحات, أعمر
2014-06مساعي هيثوم الأول،ملك أرمينيا الصغرى،الحلف المغول في حرب المسلمين ،في الفترة 1244-1255مبن حسين, مصطفى
2017-07-01Hydrogen production over partial oxidation of methane using NiMgAl spinel catalysts: A kinetic approachDJAIDJA, abdelhamid
2019A structural comparative study of charge transfer compounds: Synthesis, crystal structure, IR, Raman-spectroscopy, DFT computation and hirshfeld surface analysisBenali-Cherif, Nourredine
2008Synthèse, Caractérisation et propriétés optiques non linéaires de molécules hybrides riches en liaisons hydrogène et à forte conjugaison électroniqueBenali-Cherif, Nourredine
2013Composés hybridesBenali-Cherif, Nourredine
2013Composés hybridesBenali-Cherif, Nourredine
2019-09-21Contribution à l’étude de quelques plantes médicinales de la forêt d’Errich(Bouira)TAMOURT, Hanane; GUECHAIRI, Rofaida
2018-07-10L’étude de l’entomofaune de différentes variétés de l’olivier dans la région d’Ath mansour (Bouira)DAHACHE, Yasmine