Kinetics of the NOPOL (cas 128-50-7) synthesis by the Prins reaction over tin impregnated MCM-41 catalyst

Add time:09/29/2019    Source:infona.pl

The kinetics of the NOPOL (cas 128-50-7) synthesis by Prins condensation of β-pinene and paraformaldehyde over Sn-MCM-41 synthesized by impregnation was evaluated using the initial reaction rate method. The reaction rate equation obtained from a kinetic model based on the Langmuir–Hinshelwood formalism with the surface reaction of adsorbed reactants on catalytic sites of the same nature as the limiting step, gave a good prediction of the experimental data. The effect of temperature on the kinetics of nopol synthesis over Sn-MCM-41 obtained by impregnation was studied between 75 and 100°C. The robustness analysis of the kinetic model showed that the surface reaction constant, ksr′, should be about 0.185molg −1 h −1 at 90°C, while the ratio between the adsorption equilibrium constant of β-pinene, K A , and formaldehyde species, K B , is approximately 1.2:1 (K A :K B ). The obtained apparent activation energy and pre-exponential factor are 78kJ/mol and 2.3×10 10 molg −1 h −1 , respectively, but compensation effect analysis using both experimental and simulated data gave strong evidence of the dependency in temperature of the apparent Arrhenius parameters.

We also recommend Trading Suppliers and Manufacturers of NOPOL (cas 128-50-7). Pls Click Website Link as below: cas 128-50-7 suppliers

Prev:Dynamic parameter estimation and identifiability analysis for heterogeneously-catalyzed reactions: Catalytic synthesis of NOPOL (cas 128-50-7)
Next:Nanosized sulfated zinc ferrite as catalyst for the synthesis of NOPOL (cas 128-50-7) and other fine chemicals)