Thermochemical conversion of carbonaceous materials (gasification, pyrolysis, combustion, etc.). Technologies for biochar production and utilisation of by-products (oil and gas) for bio-fuels and bio-energy generation. Heavy metal removal technology, and thermochemical pre-treatment.
2018-2021, PhD., Tianjin University, China
2021-now, PhD., University of Edinburgh
Active research projects:
Thermochemical coupling with electrokinetic treatment for sewage sludge utilization
 X. Wang, X. Cui, Y. Che, S. Zhou, Z. Dan, B. Yan, G. Chen, T. Wang, Gasification of Tibetan herb residue: Thermogravimetric analysis and experimental study, Biomass and Bioenergy 146 (2021) 105952.
 X. Wang, Z. Dan, X. Cui, R. Zhang, S. Zhou, T. Wenga, B. Yan, G. Chen, Q. Zhang, L. Zhong, Contamination, ecological and health risks of trace elements in soil of landfill and geothermal sites in Tibet, Sci Total Environ 715 (2020) 136639.
 G. Chen, X. Wang, J. Li, B. Yan, Y. Wang, X. Wu, R. Velichkova, Z. Cheng, W. Ma, Environmental, energy, and economic analysis of integrated treatment of municipal solid waste and sewage sludge: A case study in China, Sci Total Environ 647 (2019) 1433-1443.
 J. Zhang, Y. Wang, X. Wang, W. Wu, X. Cui, Z. Cheng, B. Yan, X. Yang, Z. He, G. Chen, Hydrothermal conversion of Cd/Zn hyperaccumulator (Sedum alfredii) for heavy metal separation and hydrochar production, J Hazard Mater 423 (2022) 127122.
 X. Cui, J. Wang, X. Wang, M.B. Khan, M. Lu, K.Y. Khan, Y. Song, Z. He, X. Yang, B. Yan, G. Chen, Biochar from constructed wetland biomass waste: A review of its potential and challenges, Chemosphere 287 (2022) 132259.