Molecular sieve was utilized as a carrier of active metals copper and manganese to determine the effectiveness of removing toluen using a catalyst incineration. Catalysts with various metal ratios and weight loadings were produced by sol-gel to treat toluene. This investigation selected the most effective catalyst, based on the conversion rate of toluene and CO2 yield. The influences of operati...

The influence of reaction conditions on the catalytic performance of lanthanum vanadate (La0.1V0.9Ox) catalyst in the ammoxidation of 2-methylpyrazine (MP) to 2-cyanopyarazine (CP) has been investigated. This novel catalytic material exhibited remarkably good performance with very high space-time-yields (STY) of CP. The reaction parameters such as the effect of temperature, gas hourly space vel...

Ultra-thin, high performance composite palladium membrane, developed via a novel electroless plating method, was applied to construct a membrane reactor for methane steam reforming reaction, which was investigated under the following working conditions: temperature 723–823 K, pressure 300–900 kPa, gas hourly space velocity (GHSV) 4000–8000 mL g 1 cat h , steam-to-carbon feed ratio (S/C, mol/mol...

In this study, we proposed an innovative oxidation–absorption method for low-temperature denitrification (160–240 ◦C), in which NO is initially catalytically oxidized by hydrogen peroxide (H2O2) vapor over titania-based catalysts, and the oxidation products are then absorbed by NaOH solution. The effects of flue gas temperature, molar H2O2/NO ratio, gas hourly space velocity (GHSV), and Fe subs...

A series of Mgand/or Ce-doped Co3O4 (MgxCo1−xCo2O4 CexCo1−xCo2O4, MgxCeyCo1−x−yCo2O4) composite spinel metal-oxide catalyst was prepared by a coprecipitation method and evaluated for N2O direct decomposition. The activity measurement results suggest that Mg0.025Ce0.05Co0.925Co2O4 with a Mg/Ce mole ratio of 0.5 exhibited the highest N2O conversion activity, achieving 100% N2O conversion at T = 2...

The valorization of CO2 via renewable energy sources allows one to obtain carbon-neutral fuels through its hydrogenation, like methane. In this study, Ni0.05Ce0.95O2−δ catalysts were prepared using a simple one-pot hydrothermal method yielding nanorod and nanocube particles be used for the methanation reaction. Samples characterized by XRD, BET, TEM, H2-TPR, H2-TPD experiments. catalytic activi...

Cu-mordenite (Cu-MOR) catalysts with different copper loadings were prepared, characterized and examined in continuous, gas-flow synthesis of methyl acetate (MA) by dimethyl ether (DME) carbonylation. Improved activity selectivity observed for Cu-MOR up to 1 wt% Cu X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR) temperature-programmed reduction hydrogen (H2-TPR) us...

Within the Waste2Fuel project, innovative, high-performance, and cost-effective fuel production methods are developed to target “closed carbon cycle”. The catalysts supported on different metal oxides were characterized by XRD, XPS, Raman, UV-Vis, temperature-programmed techniques; then, they tested in CO2 hydrogenation at 1 bar. Moreover, V2O5 promotion was studied for Ni/Al2O3 catalyst. preci...

Abstract The oxidative dehydrogenation (ODH) of 1-butene to 1,3-butadiene was studied over a series AFe 2 O 4 catalysts, where A = Zn, Mn, Ni, Cu, Mg and Fe. catalysts were characterised by XPS, EPR spectroscopy, BET surface area analysis, Raman spectroscopy XRD. All the ferrites active for ODH gave an order activity after 80 h on-stream ZnFe > NiFe MnFe MgFe CuFe FeFe . lost significant (up...

Low-medium temperature application of selective catalytic reduction (SCR) denitration in cement flue gas was established and investigated this study. The 2000 h continuous operation shows the concentration NOx at outlet can be maintained 24 mg/Nm3 on average, while due to increase SO2 gas, increased 57.5 after long time operation. sulfur deposition is main reason for catalyst deactivation, stil...