نتایج جستجو برای: kissinger akahira sunose approximation
تعداد نتایج: 198009 فیلتر نتایج به سال:
Abstract The goal of the current study is to investigate thermal degradation palm fronds (PF), olive leaves (OL), and wheat straw (WS) through pyrolysis calculate their kinetic data using TG-DTG DTA approaches. parameters were assessed isoconversional techniques like Ozawa-Flynn-Wall (OFW) Kissinger–Akahira–Sunose (KAS) methods, as well model-fitting integral method, which employs various diffu...
The thermal degradation of model polystyrene (MPS) and waste (WPS) was performed in a thermobalance system at four heating rates (β) i.e., 5, 10, 15 20 °C/min an inert atmosphere. apparent activation energy (Ea) frequency factor (A) for the MPS WPS were calculated using Ozawa-Flynn-Wall (OFW), Kissinger-Akahira-Sunose (KAS), Augis-Bennetis (AB) methods. It has been determined that Ea A vary acc...
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 paper the feasibility of NbAl3/Al2O3 nanocomposite formation through mechanochemical reaction between Al and Nb2O5 and the effect of mechanical activation on the kinetic and reaction mechanism were investigated. Structural and phase evolution during mechanical alloying were studied by employing transmission electron microscopy (TEM)...
Due to the massive increase in polymer manufacture, there has been a remarkable plastic waste. With fewer landfills being used dump waste each year, it is becoming increasingly important use effective recycling methods for decomposition. In present work, polystyrene was degraded presence of natural clay (K<sub>0.02</sub>, Ca<sub>0.15</sub> [Mg<sub>0.25</sub>,...
Three formaldehyde-based resins were prepared: urea-formaldehyde (UF) resin without melamine modifier (named UF0 resin) and melamineurea-formaldehyde (MUF) resins with melamine modifier added at two different synthesis stages (named MUF1 resin and MUF2 resin). The effects of the melamine addition stage on the performance and curing behavior of MUF resin were studied. Three-ply plywood bonded by...
Pyrolysis and combustion kinetics of disposable surgical face mask produced during Covid-19 pandemic
In order to prevent the spread of Covid 19, most countries have made face masks compulsory. Millions are disposed daily in community. Therefore, aim present research work is carry out pyrolysis and combustion process mask a thermogravimetric machine. The kinetic parameter activation energy was calculated using model-free methods (Flynn-Wall-Ozawa, Kissinger-Akihara-Sunose, Starink) at four diff...
In this study, pyrolysis of municipal sewage sludge samples from different sources including cattle and chicken manure as well brook mud, was investigated using a thermogravimetric analysis coupled with Fourier transform infrared spectrometer (TG-FTIR) at heating rates (25, 50 100 °C/min). order to determine the kinetic parameters, Arrhenius, model-free Kissinger–Akira–Sunose (KAS), Friedman Fl...
Oily sludge is a hazardous waste stream of oil refineries that requires an effective process and environment-friendly route to convert recover valuable products. In this study, the pyrolytic conversion wet was implemented in autoclave pyrolyzer thermogravimetric analyzer (TGA) at 5°C/min, 20°C/min, 40°C/min, respectively. The kinetic analysis performed using model-free methods, such as Friedman...
In this study, RuO2-embedded PES membrane was prepared and it used for protein separation. The antifouling properties of the fabricated composite membranes were also investigated using bovine serum albumin (BSA) as solution. mean roughness increased proportionally by introducing RuO2 particles. porosity higher than that pristine membrane. On other hand, has smaller average pore size after addit...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید