Abstract This study aimed to investigate waste-tea’s pyrolysis kinetics and thermodynamics assess its potential for thermochemical processes. In this study, three primary samples of tea-waste are prepared investigation: raw, torrefied at 200 °C, 600 °C. Under a nitrogen environment, thermogravimetric analyses (TGA) were conducted seven heating rates (10, 15, 20, 25, 30, 35, 40 °C/min) the effec...

In this work, we study the kinetics of thermal decomposition MgCO3 in form particles known size. experiments, material is heated to a temperature vacuum oven, and it characterized, both before after heating, by infrared spectroscopy gravimetry. The agreement between results two techniques excellent. These are rationalized means model based on Languir’s law, comparison with experiments allows us...

A local hot spot model of gas-surface reactivity is used to investigate the state-resolved dynamics of methane dissociative chemisorption on Pt(111) under thermal equilibrium conditions. Three Pt surface oscillators, and the molecular vibrations, rotations, and the translational energy directed along the surface normal are treated as active degrees of freedom in the 16-dimensional microcanonica...

The synthesis of iron oxide nanoparticles (NPs) by thermal decomposition of iron precursors using oleic acid as surfactant has evolved to a state-of-the-art method to produce monodisperse, spherical NPs. The principles behind such monodisperse syntheses are well-known: the key is a separation between burst nucleation and growth phase, whereas the size of the population is set by the precursor-t...

polyurethane foams are extensively used in different applications such as furnitures and sandwich structures due to better mechanical properties, higher acoustic and damping behavior, higher resistance to hydrocarbon, and aging.with respect to flammability of polyurethane materials and safety precaution in living and working environments there is a vital need to study and investigate published ...

In previous part of this work factors influencing the thermal stability of polymer nanocomposite materials were indicated, such as chemical constitution of organic modifier, filler content, nanocomposites’ structure and the processing-dependent degree of homogenization of nanofiller, were presented. In this part the basic changes in thermal behaviour of different polymeric matrixes (e.g. polyol...