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Sonia Jam Masume Ghalbi Ahangary Ahmad Tavasoli Kambiz Sadaghiani Ali Nakhaei Pour 《Reaction Kinetics and Catalysis Letters》2006,89(1):71-79
Summary An integrated process for producing liquid fuels from synthesis gas via a two-stage Fischer-Tropsch (FT) reaction is disclosed. An iron catalyst was used in the first bed of a fixed-bed reactor
followed by a ruthenium promoted cobalt catalyst in the second bed. The activity and selectivity of the dual-bed system were
assessed and compared with those using catalysts in a single bed system, separately. The methane selectivity in the dual-bed
reactor was about 11% less compared to that of the single-bed system. The C5+ selectivity for the dual-bed reactor was 19.7% higher than that of the single-bed system. 相似文献
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Ab initio calculations were used to analyze interactions of BH4 ? with 1?C4 molecules of H2O at the MP2/6-311++G(d,p) and B3LYP/6-311++G(d,p) computational levels. The negative cooperativity for dihydrogen bond clusters containing H2O···H2O hydrogen bonds is more remarkable. The negative cooperativity is increased with increasing the size and also the number of hydrogen bonds in the cluster. The B?CH stretching frequencies show blue shifts with respect to cluster formation. Also greater blue shift of stretching frequencies where predicted for B?CH bonds which did not contribute in dihydrogen bonding with water molecules. The structures obtained have been analyzed with the Atoms in Molecules (AIM) methodology. 相似文献
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Esmael Rostami Masume Zangooei Marziyh Ghaedi 《Phosphorus, sulfur, and silicon and the related elements》2013,188(3):394-399
Abstract New aza thia crowns were prepared from the reaction of 2,2′-diaminodiphenyl disulfide and diacids or diacid chlorides. Diacids are malonic acid, adipic acid, sebacic acid, and 2,2′-thiodiacetic acid and diacid dichlorides are malonyl chloride, adipoyl chloride, sebacoyl chloride, and 2,2′-thiodiacetyl chloride. [Supplementary materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfer, and Silicon and the Related Elements for the following free supplemental files: Additional figures.] 相似文献
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Ab initio calculations were used to analyze the interactions of B6H10 with an HF molecule at the MP2/6-311++g(d,p) and B3LYP/6-311++g(d,p) computational levels. B6H10 could interact with HF through both its terminal (Ht) and bridged (Hb) hydrogens. The interaction of Ht and Hb of B6H10 with HF could result in the formation of Ht···H and Hb···F dihydrogen and hydrogen bond complexes, respectively. The obtained structures have been analyzed with the Atoms in Molecules
methodology. 相似文献
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