LaMnO3 and LaMnO3/ZSM-5 nano catalysts were synthesized by Pechini method and their physical-chemical properties were characterized using XRD, FTIR, SEM-EDX, UV-vis DRS, BET surface area and TPR. The correlation between characteristic properties and activity of catalysts were investigated. The catalytic performance of the catalysts was evaluated in combustion of 2-propanol...

This study presents a novel combination of microwave irradiation and structured zeolite/SiC foam catalyst to improve the methanol-to-hydrocarbons (MTH) process as well its environmental sustainability. Accordingly, ZSM-5/SiC was studied under at various reaction temperatures (400–550 °C) space velocities (8 12 h−1) compared conventional ZSM-5 pellets. promoted higher selectivity towards C1−C5 h...

Comparative studies over micro-/mesoporous Cu-containing zeolites ZSM-5 prepared by top-down treatment involving NaOH, TPAOH or mixture of NaOH/TPAOH (tetrapropylammonium hydroxide) were conducted. The results the catalytic data revealed highest activity Cu-ZSM-5 catalyst both in absence and presence water vapor. physico-chemical characterization (diffuse reflectance UV-Vis (DR UV-Vis), Fourier...

γ-Valerolactone (GVL) is one of the useful biomass compounds produced via different reaction pathways from hemicellulose. In this study, Co- and Pt-doped/ZSM-5 catalysts with Co loadings (0–10 wt.%) Pt (0.5–2 were prepared by impregnation method employed in a one-pot conversion furfural to GVL. The yield GVL increased increasing temperature 100 140 °C. At 120 °C, higher amounts secondary produc...

This study delineates a simple and versatile approach for the removal of nitrogen monoxide (NO) and volatile organic vapors over composites of titanium dioxide (TiO2) catalyst/zeolite adsorbent under ultraviolet (UV) irradiation at ambient temperature. The catalytic adsorbents with different TiO2/H-ZSM-5 zeolite ratios were prepared by a simple insipient wetness impregnation method. It was foun...

The elucidation of the selective catalytic reduction mechanisms over state-of-the-art metal-promoted zeolites is essential for nitric oxides removal in automobile and stationary source applications. In this work, H/ZSM-5 catalysts modified with transition metals, including copper, manganese, nickel, were prepared by using an incipient wetness impregnation method evaluated ammonia. Results indic...

Abstract Biomass and waste polystyrene plastic (ratio 1:1) were co-pyrolysed followed by catalysis in a two-stage fixed bed reactor system to produce upgraded bio-oils for production of liquid fuel aromatic chemicals. The catalysts investigated ZSM-5 impregnated with different metals, Ga, Co, Cu, Fe Ni determine their influence on bio-oil upgrading. results showed that the added metals had impa...

The PTA-NiMo/ZSM-5 catalyst impregnated with phosphotungstic acid (PTA) was designed for the transformation of Jatropha oil into benzene, toluene, and xylenes (BTX) aromatics. The produced catalyst was characterized by N2 adsorption-desorption, powder X-ray diffraction (XRD), Fourier transform infrared (FT-IR), X-ray photoelectron spectroscopy (XPS), and the temperature-programmed desorption of...

Hydrocarbon traps can be used to bridge the temperature gap from cold start of a vehicle until exhaust after-treatment catalyst has reached its operating temperature. In this work, we investigate effect zeolite structure (ZSM-5, BEA, SSZ-13) and La addition H-BEA H-ZSM-5 on hydrocarbon storage capacity by temperature-programmed desorption DRIFT spectroscopy. The results show that presence signi...