[PDF] Top 20 Ga-Promoted Tungstated Zirconia Catalyst for n-Butane Isomerization
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Ga-Promoted Tungstated Zirconia Catalyst for n-Butane Isomerization
... best Ga loading in these catalysts is around ...catalysts promoted by the addition of Ga in the presence of H 2 can be explained by assuming that Ga suppresses the monoclinic zirconia, ... See full document
6
Alumina-promoted mesoporous sulfated zirconia: a catalyst for n-butane isomerization
... activity for the isomerization of n-butane to isobutane was investigated by comparison of catalysts with various Al loadings and without the ...promoter. For most catalysts, the ... See full document
9
Highly active and stable n-pentane isomerization catalysts without noble metal containing: Al- or Ga-promoted tungstated zirconia
... GWZ for n-pentane isom- erization. Figure 4 shows n-pentane conversion greatly depends on the reaction ...pressure. For both AWZ and GWZ, n-pentane conversion and the cracking products, ... See full document
7
Isomerization of n-butane by gallium-promoted sulfated zirconia supported on MCM-41
... sulfated zirconia inside the pore channels of ...bands for both sets of samples appeared only at 1607, 1490 and 1445 cm 21 , with no band at 1540 cm 21 ... See full document
4
Al- and Ga-promoted WO3/ZrO2 strong solid acid catalysts and their catalytic activities in n-butane isomerization
... and Ga-promoted tungstated zirconia strong solid acid catalysts were ...and Ga 2 O 3 on the structural, acidic and redox features of WO 3 /ZrO 2 (WZ) has been characterized by means of ... See full document
6
Comparison of the promoting effects of gallium and aluminium on the n-butane isomerization actvity of sulfated zirconia
... Accepted February 23, 2004 Abstract Sulfated zirconia catalysts promoted by gallium or aluminium were prepared and tested for n-butane isomerization. Both elements increase and ... See full document
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n-Pentane isomerization over promoted SZ/MCM-41 catalysts
... in n-pentane isomerization In the presence of the three catalysts, the predominant product was isopentane, formed with small amounts of methane, ethane, propane, butane, and ...the catalyst ... See full document
7
Alumina-promoted sulfated mesoporous zirconia catalysts
... Mesoporous zirconia, hydrothermally synthesized from surfactant templating, was directly impregnated with aluminum sulfate to give the acidic Al-promoted sulfated mesoporous zirconia (AS/MP-ZrO 2 ... See full document
10
Sulfated zirconia catalyst supported on MCM-41 mesoporous molecular sieve
... Conclusions For the first time, strong solid acid catalysts com- prising of pure siliceous MCM-41 with hollow tubular morphology and sulfated zirconia have been prepared and ...in n-butane ... See full document
10
Well-Dispersed Gallium-Promoted Sulfated Zirconia on Mesoporous MCM-41 Silica
... sulfated zirconia (SZ) was con®ned inside pure-silica MCM-41 (abbreviated as SZGa/MCM-41), where the latter served as a host ...XRD, N 2 adsorption, HRTEM, DRIFT, NH 3 ±TPD, and ...in n-butane ... See full document
5
Tungstated zirconia catalyzed bromination of phenol red under nearly neutral solution
... Keywords: Tungstated zirconia; Mesoporous zirconia; Phenol red; Bromination; XPS; EXAFS ...used for the synthesis of halogenated compounds which may play the role of chemical defense ...used ... See full document
8
Isomerization reactions of RSNO (R=H, C n H2 n +1 n ? 4)
... b Based upon B3LYP/6-311+G*, see ref. [42, 43] c Grel in ref. [42,43] Moreover, the rotational barrier is calculated to be 14.4 and 13.9 kcal/mol for cis-EtSNO and trans-EtSNO, respectively. Thus, trans- and ... See full document
8
Acute Gastric Perforation Following Butane Ingestion
... 1 Although pneumoperitoneum can be caused by physiological processes in a small number of patients, the radiological manifestation of free air in the peritoneal cavity usually suggests serious intra-abdominal disease and ... See full document
10
Development of catalyst system for selective combustion of hydrogen
... The method of chemical vapor deposition of silicon alkoxide on CuHZSM-5 was used to modify the catalyst pore opening size, and to prepare a series of novel catalysts (SiCuHZSM-5[r] ... See full document
9
Non-alloyed Cr/Au Ohmic contacts to N-face and Ga-face n-GaN
... to N-face and Ga-face n-GaN Liang-Jyi Yan a , Cheng Huang Kuo b , Jinn-Kong Sheu a,c,∗ , Ming-Lun Lee c,d , Wei-Chun Tseng a a Department of Photonics and Advanced Optoelectronic Technology Center, ... See full document
3
Tungsten-Promoted Intramolecular Alkoxycarbonylation for Synthesis of Complex Oxygenated Molecules
... source for stereoselective syntheses of complex R -methylene lactones; the operation is best performed in a single step to achieve maximum ...suitable for stereoselective synthesis of complex acyclic ... See full document
9
Vilsmeier–Haack reagent-promoted formyloxylation of a-chloro-N-arylacetamides by formamide
... α-chloro- N-arylacetamides by formamide was ...moiety. For α- chloro-N-(naphthalenyl)acetamide (8a), α-chloro-N-(quinolin-8-yl)acetamide (8b), and α-chloro-N-(thiazol-2-yl)acetamide ... See full document
21
Direct impregnation method for preparing sulfated zirconia supported on mesoporous silica
... sulfated zirconia (S–ZrO 2 ) supported on mesoporous ...precursors for the surfactants in the as-synthesized MCM-41 materials, the problem of fill-up of the mesoporous structure was avoided and high sulfur ... See full document
8
Ruthenium(iii)-promoted oxidative dimerization of aniline to N-phenyl-1,2-phenylenediimine. Definitive proof for the template reaction
... Association for the Cultivation of Science, Calcutta 700 032, India b Department of Chemistry, National Taiwan University, Taipei, Taiwan, Republic of China c Departmento de Qu´ımica Inorg´anica, Facultad de ... See full document
2
GA-based reinforcement learning for neural networks
... suitability for any purpose of the ...liable for any losses, actions, claims, proceedings, demands, costs, expenses, damages, and other liabilities whatsoever or howsoever caused arising directly or ... See full document
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