نتایج جستجو برای: shape selective catalysts
تعداد نتایج: 415754 فیلتر نتایج به سال:
• The dual site consisting of Al or Zr the support and Cu species is active. DFT indicates synergy acid sites supports species. Copper dispersion a sensitivity descriptor for activity. Glycerol produced in large quantities as byproduct biodiesel, among others hydroxyacetone (acetol) an important commodity obtained from glycerol. Metallic has been identified active dehydration glycerol to metal ...
Two late transition metal catalysts based on 2,6-bis(imino)pyridine iron(II) were synthesized by introducing methyl substitution (catalyst A) and t-Butyl substitution (catalyst B) at the ortho position of the aryl rings of the ligand. Comparative ethylene polymerizations using the catalysts showed quiet different behaviors. The activity of catalyst A was higher than that of catalyst B in all of...
The problem of soot emissions from diesel engines is introduced and the possible solution of combining doped perovskites and microwave (mw) irradiation to "clean up" diesel soot filters is outlined. Eighteen doped perovskite catalysts are synthesized and tested for propane and CO oxidation, which are taken as model components for soot. The activity, selectivity, and SO2 tolerance are compared u...
SiO2/V2O5/TiO2 catalysts were synthesized for removing elemental mercury (Hg0) from simulated coal-combustion flue gas. Experiments were carried out in fixed-bed reactors using both pellet and powder catalysts. In contrast to the SiO2-TiO2 composites developed in previous studies, the V2O5 based catalysts do not need ultraviolet light activation and have higher Hg0 oxidation efficiencies. For H...
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