刘永琦（1992.10-），陕西榆林人，2020级博士研究生，主要研究方向煤焦油催化转化制备轻质芳烃；发表SCI论文4篇，申请专利2件；获一等奖学金4次，二等、三等奖学金各1次。

代表性研究成果：

[1]     Yongqi Liu, Qiuxiang Yao*, Duo Ma, Linyang Wang, Lei He, Li Ma, Jing Wang, Ming Sun*, Xiaoxun Ma*, Catalytic performance of coal tar by step conversion of single-component, multi-components, distillate and all-distillates over bifunctional HZSM-5: Model optimization and experiment verification, Fuel Processing Technology, 2023, 244, 107693. (SCI 一区，IF: 8.129)

[2]     Yongqi Liu, Qiuxiang Yao, Ming Sun, Xiaoxun Ma. Catalytic fast pyrolysis of coal tar asphaltene over zeolite catalysts to produce high-grade coal tar: An analytical Py-GC/MS study[J]. Journal of Analytical and Applied Pyrolysis 156 (2021) 105127. (SCI 2 区，IF 6.437).

[3]     Yongqi Liu, Qiuxiang Yao, Ming Sun, Xiaoxun Ma. Selective preparation of light aromatic hydrocarbons from catalytic fast pyrolysis vapors of coal tar asphaltene over transition metal ion modified zeolites[J]. Chinese Journal of Chemical Engineering 35 (2021) 275-287. (SCI 2 区，IF 3.898).

[4]     Yongqi Liu, Qiuxiang Yao, Ming Sun, Xiaoxun Ma. Process Characteristics and Mechanisms for Catalyzed Pyrolysis of Low-Temperature Coal Tar[J]. Energy & Fuels 2019, 33, 7052-7061. (SCI 3 区，IF 4.654).