The solvent-free selective hydrogenation of 2-methyl-3-butyn-2-ol (MBY) to 2-methyl-3-buten-2-ol (MBE) was studied over a Pd/ZnO structured catalyst and compared to its behavior in water-assisted conditions. The catalytic behavior was correlated with the surface properties of the catalysts which were characterized by X-ray diffraction and X-ray photoelectron spectroscopy. The catalyst showed hi...

7 The role of the humidity content on the performance of catalytic reverse flow reactors (RFR) for the 8 abatement of methane emissions from coal mines is studied in this manuscript. It has been 9 demonstrated that this technique is very useful for the abatement, and even upgrading, of these 10 emissions. However, the effect of humidity on the reactor performance has not been addresses yet, 11 ...

Over the years, hydrotreating process has been considerably improved in order to facilitate production of environmentally friendly diesel fuels by reducing sulphur and aromatics concentrations, as mandated contemporary emissions regulations. In this study, different kinetic models for hydrodearomatisation reaction influence rate on performance industrial trickle bed reactor gas oil light cycle ...

The photo-catalytic degradation of a textile azo-dye as Methyl Orange was studied in an innovative unit constituted by channel over which layer titanium dioxide (TiO2) catalyst anatase form deposited and activated UVB irradiation. kinetics were followed after variation the chemical, physical, hydraulic/hydrodynamic parameters system. For this purpose, influence TiO2 dosage (g/cm3), dye concentr...

Methyl oleate, an example of a FAME (fatty acid methyl ester), was produced by oleic (OA) photoesterification with TiO2 and UVA light. Different parameters were evaluated optimised: catalyst pretreatment, temperature (25–65 °C), loading (1–30 % w/wOA) : alcohol molar ratio (1 3–1 55). Response surface quadratic methodology obtained central composite rotational design (RSM-CCRD) used to evaluate...

The photocatalytic removal of Flumequine (antibiotic) using a luminous textile which served as support for the TiO2 and light transmitter through optical fibers was examined in this study. Two configurations were investigated (Mono-Face Double-Face) terms compounds degradation mineralization. Photocatalytic performances Double-Face configuration found to be better than one obtained with Mono-Fa...

We report a new method to measure the kinetic rate constant of CO2 hydration using electrochemical oxidation carbon monoxide (CO oxidation) in isotope-labeled electrolyte. CO is often used as model reaction investigate surface metallic electrocatalysts, most notably stripping experiments. Using chip-based electrochemistry mass spectrometry with 18O-labeled electrolyte we show that: 1) For exper...

The hydrodeoxygenation of methyl-substituted phenols was carried out in a flow microreactor at 300 degrees C and 2.85 MPa hydrogen pressure over a sulfided CoMo/Al(2)O(3) catalyst. The primary reaction products were methyl-substituted benzene, cyclohexene, cyclohexane, and H(2)O. Analysis of the results suggests that two independent reaction paths are operative, one leading to aromatics and the...

In this work, char gasification of two coals (i.e., Shenfu bituminous coal and Zunyi anthracite) and a petroleum coke under a steam and CO2 mixture (steam/CO2 partial pressures, 0.025–0.075 MPa; total pressures, 0.100 MPa) and CO2/steam chemisorption of char samples were conducted in a Thermogravimetric Analyzer (TGA). Two conventional kinetic models exhibited difficulties in exactly fitting th...

The present work deals with the kinetic analysis and modelling of glycerol (GLY) oxidation in the liquid phase over a supported gold catalyst. A Langmuir-Hinshelwood model was proposed, after considering the effect of the reaction temperature, the NaOH/GLY ratio and the initial concentrations of GLY and GLY-Product mixtures. The proposed model effectively predicted the experimental results, and...