Tomasz Wiltowski

TL;DR: In this article, the Johnson-Mehl-Avrami-Erofe'ev equation was applied to evaluate the reactions for hydrogen enrichment in the presence of syngas constituents and the reaction kinetic parameters were estimated based on the thermogravimetric data.

TL;DR: In this paper, the results of the development and utilization of an iron-based catalyst for thermocatalytic decomposition (TCD) of methane were reported. But the main advantages of these catalysts identified were: their ability to completely decompose methane (as compared to a maximum of 81% by other catalysts) and to maintain high reactivity for a long period of time (more than 75h).

TL;DR: In this paper, the carbon adsorbent used in this study selectively removed the anions of hexavalent chromium from the solution, whereas, depending upon the solution pH, no or very small uptake of metal cations was observed.

TL;DR: In this paper, a kinetic model based on the first-order irreversible rate kinetics was developed and fitted to the TGA data so as to estimate the rate constants for each reduction reaction, which involved reduction of iron oxides, Boudouard reaction and iron-carbide formation.

TL;DR: In this paper, the Avrami-Erofe'ev equation of coupled nucleation and growth processes was successfully applied to describe the initial stages of the process, while four diffusion equations were tested to model the final stages.