| Education and work experience: July 2022 to now，Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Urban-rural Mine Integrated Technology Research Team, Assistant research fellow September 2017 to June 2022, South China University of Technology, School of Electric Power, Power Engineering and Engineering Thermophysics, Doctor September 2013 to June 2017, South China University of Technology, School of Electric Power, Energy and Power Engineering, bachelor Research Summary： The research mainly focuses on organic solid waste resource utilization. Our previous works have carried out applied basic research on pollutant control during the pyrolysis and gasification of organic solid waste. Our research aims at achieving clean conversion and improving energy recovery efficiency during organic solid waste resource utilization. Scholarly Words： [1] Xinfei Chen, Xiaoqian Ma, Xiaowei Peng, Yousheng Lin, Zhongliang Yao. Conversion of sweet potato waste to solid fuel via hydrothermal carbonization. Bioresource Technology. 2018;249:900-7. [2] Xinfei Chen, Xiaoqian Ma, Xiaowei Peng, Yousheng Lin, Jingjing Wang, Chupeng Zheng. Effects of aqueous phase recirculation in hydrothermal carbonization of sweet potato waste. Bioresource Technology. 2018;267:167-74. [3] Xinfei Chen, Xiaoqian Ma, Xiaowei Peng, Yousheng Lin, Jingjing Wang. Investigation of Mannich reaction during co-liquefaction of microalgae and sweet potato waste. Bioresource Technology. 2019;284:286-92. [4] Xinfei Chen, Xiaoqian Ma, Xianghao Zeng, Chupeng Zheng, Xiaoluan Lu. Ethanol addition during aqueous phase recirculation for further improving bio-oil yield and quality. Applied Energy. 2020;262:114550. [5] Xinfei Chen, Xiaoqian Ma, Liyao Chen, Xiaoluan Lu, Yunlong Tian. Hydrothermal liquefaction of Chlorella pyrenoidosa and effect of emulsification on upgrading the bio-oil. Bioresource Technology. 2020;316:123914. [6] Xinfei Chen, Xiaowei Peng, Xiaoqian Ma. Investigation of Mannich reaction during co-liquefaction of microalgae and sweet potato waste: Combustion performance of bio-oil and bio-char. Bioresource Technology. 2020;317:123993. [7] Xinfei Chen, Xiaoqian Ma, Xiaowei Peng. Role of filamentous coke in deactivation of Ni/bio-char catalyst during dry reforming of non-oxygenates tar. Journal of Analytical and Applied Pyrolysis. 2021;159:105314. [8] Xinfei Chen, Xiaoqian Ma, Xiaowei Peng, Liyao Chen, Xiaoluan Lu, Yunlong Tian. Effect of synthesis temperature on catalytic activity and coke resistance of Ni/bio-char during CO2 reforming of tar. International Journal of Hydrogen Energy. 2021. [9] Xinfei Chen, Xiaoqian Ma, Xiaowei Peng. Effect of lattice oxygen in Ni-Fe/Bio-char on filamentous coke resistance during CO2 reforming of tar. Fuel. 2022;307:121878. [10] Xinfei Chen, Xiaoqian Ma, Xiaowei Peng. Role of reforming agent in filamentous coke deposition on Ni/bio-char catalyst during non-oxygenates biomass tar reforming. Applied Catalysis A: General.2022;630;118446. [11]Xiaowei Peng, Xiaoqian Ma, Yousheng Lin, Jingjing Wang, Xiaoyu Wei, Xinfei Chen. Combustion performance of biocrude oil from solvolysis liquefaction of Chlorella pyrenoidosa by thermogravimetry–Fourier transform infrared spectroscopy. Bioresource Technology. 2017;238:510-8. [12]Jiawei Chen, Xiaoqian Ma, Zhaosheng Yu, Tonghui Deng, Xinfei Chen, Lin Chen, Dai Minquan. A study on catalytic co-pyrolysis of kitchen waste with tire waste over ZSM-5 using TG-FTIR and Py-GC/MS. Bioresource Technology. 2019;289:121585. [13]Xiaowei Peng, Xiaoqian Ma, Yousheng Lin, Jingjing Wang, Xinfei Chen. Investigation on solvolysis liquefaction mechanism of Chlorella pyrenoidosa in ethanol–water solvent based on major model compounds: Protein and starch. Journal of Analytical and Applied Pyrolysis. 2019;141. [14]Chupeng Zheng, Xiaoqian Ma, Zhongliang Yao, Xinfei Chen. The properties and combustion behaviors of hydrochars derived from co-hydrothermal carbonization of sewage sludge and food waste. Bioresource Technology. 2019;285: 121347. [15]Jingjing Wang, Xiaowei Peng, Xinfei Chen, Xiaoqian Ma. Co-liquefaction of low-lipid microalgae and starch-rich biomass waste: The interaction effect on product distribution and composition. Journal of Analytical and Applied Pyrolysis. 2019;139:250-7. [16]Chaoyue Zhang, Xiaoqian Ma, Xinfei Chen, Yunlong Tian, Yi Zhou, Xiaoluan Lu, Tao Huang. Conversion of water hyacinth to value-added fuel via hydrothermal carbonization. Energy. 2020;197:117193. [17]Liyao Chen, Xiaoqian Ma, Fangfang Tang, Yang Li, Zhaosheng Yu, Xinfei Chen. Comparison of catalytic effect on upgrading bio-oil derived from co-pyrolysis of water hyacinth and scrap tire over multilamellar MFI nanosheets and HZSM-5. Bioresource Technology. 2020;312:123592. [18]Xiaoluan Lu, Xiaoqian Ma, Xinfei Chen, Zhongliang Yao, Chaoyue Zhang. Co-hydrothermal carbonization of polyvinyl chloride and corncob for clean solid fuel production. Bioresource Technology. 2020;301:122763. [19]Xiaoluan Lu, Ma Xiaoqian, Xinfei Chen. Co-hydrothermal carbonization of sewage sludge and lignocellulosic biomass: Fuel properties and heavy metal transformation behaviour of hydrochars. Energy. 2021;221:119896. [20]Xiaoluan Lu, Xiaoqian Ma, Zhen Qin, Xinfei Chen, Limei Chen, Yunlong Tian. Co-hydrothermal carbonization of sewage sludge and polyvinyl chloride: Hydrochar properties and fate of chlorine and heavy metals. Journal of Environmental Chemical Engineering. 2021;9:106143. [21]Xiaoluan Lu, Xiaoqian Ma, Zhen Qin, Chuncheng Ke, Limei Chen, and Xinfei Chen. Co-Hydrothermal Carbonization of Sewage Sludge with Wood Chip: Fuel Properties and Heavy Metal Transformation Behavior of Hydrochars. Energy Fuels. 2021. [22]Runqi Chen, Xiaoqian Ma, Zhaosheng Yu, Limei Chen, Xinfei Chen, Zhen Qin. Study on synchronous immobilization technology of heavy metals and hydrolyzed nitrogen during pyrolysis of sewage sludge. Journal of Environmental Chemical Engineering. 2021;9:106079. [23]Hanyan He, Xiaoqian Ma, Zhaosheng Yu, Liyao Chen, Xinfei Chen. A study on the deoxidation effect of different acidic zeolites during the co-pyrolysis of aged municipal solid waste and corn stalk. Journal of Analytical and Applied Pyrolysis. 2021:105319. | 
