Thermal Degradation Characteristics of Rapeseed Biodiesel And Its Blends With Petroleum Diesel

Abstract

Biodiesel is always blended with petroleum diesel to serve as the transport fuel, to obtain the specific impact of petroleum diesel addition on thermal degradation for biodiesel; in this study, the thermal degradation characteristics of biodiesel and biodiesel blends with diesel are investigated by thermogravimetric analysis at heating rates of 10, 15, and 20 K min⁻¹ in the temperature range of 298 to 873 K. The kinetic parameters of activation energy are calculated based on the iso-conversional method, namely the Friedman method and Flynn–Wall–Ozawa method, and the reaction order is determined by Avrami theory. In addition, the thermodynamic parameters of enthalpy, entropy, and Gibbs-free energy are also calculated.

Notes on contributors

Hui Li is a lecturer in the School of Thermal Engineering of Shandong Jianzhu University, China. He received his Ph.D. degree in Power Engineering and Engineering Thermophysics in 2016. He is involved in scientific research on biomass conversion and utilization.

Fengsheng Liu is a Master Degree Candidate in the School of Thermal Engineering of Shandong Jianzhu University, China. He is majoring in Power Engineering and Engineering Thermophysics, and his research interest is focused on biodiesel synthesis through transesterification.

Shoujun Zhou is an associate professor in the School of Thermal Engineering of Shandong Jianzhu University, China. He received his Ph.D. degree in Thermal Engineering in 2012. His research field is involved in modeling, analysis, and fault diagnosis of central heating systems.

Jiying Liu works as an associate professor at School of Thermal Engineering in Shandong Jianzhu University since 2014. He received his Doctor degree in the Heating, Ventilation and Air Conditioning from Southwest Jiaotong University in 2013. His research interests are urban microclimate environment and building energy consumption, renewable energy application, and heat and mass transfer. He has published more than 20 international journal papers.

Zhongjie Wu received his Ph.D. degree in Chemical Engineering from Tianjin University in 2015. He is currently a senior engineer in chemical engineering of power plant at Shandong Power Company Electric Power Research Institute, China. His research interests include wastewater research and process modification.

Additional information

Funding

This work is supported by National Natural Science Foundation of China (51806126 and 51608310) and Doctoral Fund of Shandong Jianzhu University (XNBS1603).