Quantum chemistry calculations were done, using the ONIOM2 methodology at two different levels of calculation, B3LYP for the high level and UFF for the low level. These calculations were performed on Au3/SAPO-11, Au4/SAPO-11, CO-Au3/SAPO-11 and CO-Au4/SAPO-11 aggregates to analyze the geometries of small clusters of Au3 and Au4 on SAPO-11 support. Au3 cluster present a triangle structure in Au3...

Shape-selective methylation of naphthalene (NAPH) over SAPO-11 zeolite was carried out in a fixed-bed flow reactor under atmospheric pressure. Some zeolites, such as H-beta (Hβ), HUSY and ZSM-5 were also evaluated for comparison with SAPO-11 zeolite.The results showed that SAPO-11 exhibited higher stability, higher selectivity of  2,6-dimethylnaphthalene (2,6-DMN), and higher 2,6-/2,7-DMN r...

shape-selective methylation of naphthalene (naph) over sapo-11 zeolite was carried out in a fixed-bed flow reactor under atmospheric pressure. some zeolites, such as h-beta (hβ), husy and zsm-5 were also evaluated for comparison with sapo-11 zeolite.the results showed that sapo-11 exhibited higher stability, higher selectivity of  2,6-dimethylnaphthalene (2,6-dmn), and higher 2,6-/2,7-dmn ratio...

The Front Cover illustrates an artwork design for showcasing the developed bifunctional NiRe/SAPO-11 catalyst along with “KHON”, masked dance drama in Thailand. In their Research Article, A. Srifa and co-workers designed Re nanoparticles decorated on Ni/SAPO-11 economically combined process of direct triglycerides hydro-deoxygenation isomerization into low-cold flow diesel. diesel production co...

Silicoaluminophosphates SAPO-5 and SAPO-11 were synthesized using the hydrothermal method, 170 ºC with triethylamine dipropylamine as structure directing agents, respectively. This work aimed incorporation of boron into structures obtained by modifying composition system, a reaction equation: Al2O3:P2O5:x SiO2: yB2O3:1,5TEA (or DPA):50H2O, x, y=0-0.2. The phase was identified XRD characterized ...

Recent studies confirm that the emerging bifunctional catalysts consisting of metal oxide and zeolites can directly convert syngas into high-quality gasoline, however, formation mechanism iso-paraffins difference with conventional FT/zeolite catalyst have not been investigated. Herein, three one-dimensional SAPO diverse micropore sizes were synthesized assembled ZnAlOx spinel structure. It was ...

SAPO-11 is synthesized from silicoaluminophosphate in the presence of di-n-propylamine as a template. The results show that sample obtained has good crystallinity, 396m2/g BET surface area, and 0.35 cm3/g pore volume. hydroisomerization activity (0.25)Pt (1)Zr (0.5)W/SAPO-11 catalyst was determined using n-decane base oil. All experiments were achieved at fixed bed plug flow reactor temperature...