The pyrolysis of coal (C), torrefied sawdust (SPT), paraffin (P), and their blends was evaluated. Iso-conversional methods (i.e. Friedman, Flynn-Wall-Ozawa, Kissinger-Akahira-Sunose) were used to determine the activation energy (Ea); Kissinger method allowed frequency factor (A) calculation Criado Coats-Redfern elucidate reaction mechanism. Thermodynamic parameters transition state (ΔH‡, ΔG‡ ΔS...

After around 50 years of development, the key substance known as polyethylene has been extremely influential in a variety industries. This paper investigates how materials have used domains water, packaging, and medicine to advance contemporary society order comprehend physical chemical alterations that undergoes after being subjected long-term environmental variables (e.g., temperature, light,...

Abstract Non-isothermal reaction mechanism and kinetic analysis for the synthesis of monoclinic lithium zirconate (m-Li 2 ZrO 3 ) were investigated by processing TG-DTA, along with XRD, DLS, HRTEM. For this purpose, solid-state Li CO was carried out TG-DTA at different heating rates (10, 20, 30 °C/min) from room temperature to 1100 °C. The thermal data used calculate parameters two types isocon...

A comparison of the thermal behaviours different Mediterranean biomasses, based on evaluation their pyrolysis characteristic temperatures, reactivity and kinetic parameters is presented. Parameters such as activation energy pre-exponential factor reactions are determined by methods (Kissinger, Kissinger–Akahira–Sunose [KAS], Coats–Redfern, nonlinear least-squares minimization [NLSM] model distr...

A characteristic of granulated LTA and SOD zeolites is given. It was determined that zeolite particles have a cube shape with size ~2 μm; an irregular 0.5–1 μm. The dimension the coherent scattering region calculated to be 760 nm for 453 SOD. specific surface area 115 m2·g–1 141 m2·g–1. Static tests showed maximum quantity absorbed water vapor ~30 wt.%, ~20 wt.%. found provide adsorption from g...

The co-precipitation technique was used to successfully produce nanometer cobalt ferrite (CoF). Utilizing the solvent-antisolvent approach, reduction in size of sensitive HEM 3-nitro-2,4-dihydro-3H-1,2,4-triazol-5-one (NTO) effectively achieved. Using simultaneous thermal analysis, effect 5% by mass CoF on thermolysis NTO and nanosize (r-NTO) investigated. kinetic parameter r-NTO presence addit...

Abstract The complex crystallization behavior of the Zr 40 Ti 15 Cu 10 Ni Be 25 bulk metallic glass (BMG) produced by suction-casting method was studied with non-isothermal DSC measurements heating rate from 5 to K/min. Three exothermic phenomena were observed for investigated material. novel evaluation procedure qualitative and quantitative analysis intricate kinetics Zr-based BMGs is proposed...

To ascertain the potential of various leguminous biomass such as L. leucocephala, C. proliferus, P. alba and S. sesban, both energetic a source high added value products, pyrolytic behaviour was studied at different heating rates by using analytical method thermogravimetric (TG), isoconversional Kissinger-Akahira-Sunose (KAS), determination some thermodynamic parameters pyrolysis-gas chromatogr...

In the present work thermogravimetric techniques were used to study thermal degradation of high-density cork granules. Pyrolysis experiments carried out for four heating ramps (10, 15, 20 and 25 °C.min?1), using nitrogen as carrier gas. From differential (DTG) curves it was seen that mainly occurs from 220 °C 525 main components (suberin, lignin, cellulose, hemicellulose). It also observed temp...

The present investigation deals with the thermogravimetric analysis of bamboo and biochar in an inert environment at 10, 20, 30 °C/min. In addition, vacuum pyrolysis was used for biochar. FWO (Flynn–Wall–Ozawa) KAS (Kissinger–Akahira–Sunose) methods were to determine thermodynamic kinetic parameters within active zone. Thermal degradation biomass undergoes several steps loss mass, including moi...