Abstract
Thermochemical process of biomass is being considered as a latest technique for the restoration of energy source and biochemical products. In this study, the influence of the different heating rates on pyrolysis behaviors and kinetic of jute stick were investigated to justify the waste jute stick biomass as a potential source of bioenergy. Pyrolysis experiments were carried out at four several heating rates of 10, 20, 30 and 40 °C/min, by utilizing the thermogravimetric analyzer (TG-DTA) and a fixed-bed pyrolysis reactor. Two different kinetic methods, Kissinger–Akahira–Sunose (KAS) and Ozawa–Flynn–Wall (OFW) were used to determine the distinct kinetic parameters. The experimental results showed that, the heating rates influenced significantly on the position of TG curve and maximum Tm peaks and highest decomposition rate of the jute stick biomass. Both the highest point of TG and the lowest point of Derivative thermogravimetry (DTG) curves were shifted towards the maximum temperature. However, the heating rates also influenced the products of pyrolysis yield, including bio-char, bio-oil and the non-condensable gases. The average values of activation energy were found to be 139.21 and 135.99 kJ/mol based on FWO and KAS models, respectively.
Highlights
Rapid growth of demography and urbanization causes an enormous use of energy, which results a rapid reduction of natural resources
We investigated the pyrolysis reaction kinetics from the collected datatest oftube, the about mL
We investigated the pyrolysis reaction kinetics from the collected data of the thermogravimetric analysis
Summary
Rapid growth of demography and urbanization causes an enormous use of energy, which results a rapid reduction of natural resources This universal requirement of enormous energy was fulfilled mainly by the consumptions of the fossil fuels and other general resources such as natural gas, coal dominant energy and petroleum etc. Biomass is one of the most significant sources of energy by occupying about 14% of the world’s primary energy trade [4,5] It can promote for the production of energy in diverse ways from traditional ignition to the pyrolysis and gasification process. In the direct burning process, only 10% to 15% of biomass was converted to the heat, whereas the rest are wasted in the form of gas [6] At present, this method is not economically feasible for the commercial purpose. Thermochemical process (pyrolysis, combustion, gasification etc.) can play a significant role for the successful conversation of the different biomasses (i.e., city waste, agricultural residues and forestry product) into the bioenergy
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