Abstract
The present study deals with the thermogravimetric analysis of WS and WSB at 20, 30 and 40 °C/min in inert atmospheric condition. The physicochemical characterizations of wheat straw (WS) and its biochar produced from the vacuum pyrolysis process (WSB) have been carried out using proximate and ultimate analysis technique. The kinetics and thermodynamic parameters were calculated using iso-conversional model free methods, including Kissinger-Akahira-Sunose (KAS), Starink and Flynn-Wall-Ozawa (FWO), respectively. The activation energy values for WS biomass and WS biochar are found in the range of 125–193 kJ mol−1 and 160–195 kJ mol−1 obtained from FWO, KAS and STARINK models in the conversion range of 0.1–0.8, respectively. Activation energy was found increased for different degree conversions from 0.1 to 0.8, respectively. The average values of enthalpy, entropy and Gibbs-free energy for WS are reported. The study findings for WS and WSB showed huge potential in bio-refinery industries for modelling and designing of pyrolysis reactors for sustainable bio-fuel production.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
