| 英文摘要 |
The efficient conversion of biomass (a widely available renewable energy source) to energy could play a prominent role inmeeting increasing global energy demands. This research examines the physicochemical characteristics and bioenergy potentialof hazel sterculia (Sterculia foetida L.) (HS) seeds. The degradation thermokinetics were evaluated using thermogravimetricanalysis in air atmosphere at different heating rates. Thermal analysis of the HS seeds was characterized by three-stagedegradation with two major mass loss steps (98.4%) having onset temperatures in the range of 232.1–266.5°C.Thermogravimetry coupled Fourier transform infrared spectroscopy analysis (TG-FTIR) revealed the presence of several organiccompounds, such as H2O, CH4, CO2, CO, aldehydes, and esters in the feedstock. Isoconversional Kissinger, Kissinger–Akahira–Sunose (KAS), and Flynn–Wall–Ozawa (FWO) methods were applied to evaluate the thermokinetic parameters. The estimatedaverage values of apparent activation energy for the second and third stages were 110.1 and 80.4 kJ mol–1, with correlationcoefficients of 0.99 and 0.98, respectively. The heating value of the HS seeds was determined to be 20.5 MJ kg–1. The HS seedswere determined to be a potential biomass feedstock to produce biofuels, value-added chemicals, and bioenergy. |
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