Dongmei Xu

Shandong University of Science and Technology

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Jun Gao

Shandong University of Science and Technology

Lianzheng Zhang

Shandong University of Science and Technology

Yinglong Wang

Qingdao University of Science and Technology

Xueli Gao

Hefei University of Technology

Zhun Ma

Shandong University of Science and Technology

Qun Wang

Henan University of Technology

Yongchao Sun

Dalian University of Technology

Zhaoyou Zhu

Qingdao University of Science and Technology

Yixin Ma

Shandong University of Science and Technology

Junjun Feng

Anhui University of Technology

Cooperative Institutions

Shandong University of Science and Technology

Qingdao University of Science and Technology

Chinese Academy of Sciences

Shandong University

University of Chinese Academy of Sciences

Zhejiang University

Qingdao Center of Resource Chemistry and New Materials

Peking University

Beijing University of Chemical Technology

University of Science and Technology of China

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Experimental and quantum chemical calculations investigations of morpholine-based ionic liquids as extractants for efficient extraction of nitrogen heterocyclic neutral compounds

Fuel (2022)

Peng Gao Jun Zhang Zhiqun Guo Jun Gao Dongmei Xu

Morpholine

Pyrrole

10.1016/j.fuel.2022.126446

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Citations (12)

Application of response surface methodology for modeling and optimization of lead (Pb (II)) removal from seaweed extracts via electrodialysis

Desalination and Water Treatment (2020)

Xiaomeng Wang Junjun Feng Zhun Ma Li Jianye Dongmei Xu

Lead (geology)

10.5004/dwt.2020.25031

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Citations (4)

Efficient Extraction of Neutral Heterocyclic Nitrogen Compounds from Coal Tar via Ionic Liquids and Its Mechanism Analysis

Energy & Fuels (2018)

Lianzheng Zhang Mi Zhang Jun Gao Dongmei Xu Shixue Zhou

As a valuable chemical material or energy fuel, the reasonable and efficient utilization of coal tar is important. Four different ionic liquids (ILs), 1-ethyl-3-methyl imidazolium tosylate ([emim][TOS]), 1-btyl-1-methyl pyrrolidinium chloride ([bmpyrr][Cl]), N-butylpyridinium chloride ([bpy][Cl]), and 1-ethyl-3-methyl imidazolium trifluoroacetate ([emim][TFA]), were investigated as extractants to extract the value-added neutral heterocyclic nitrogen compounds, indole and carbazole, from model coal tar in the present work. And the separation performance was valued by calculating the experimental extraction efficiency and distribution coefficient. For neutral nitrogen compounds, indole and carbazole, the adopted four ILs have higher extraction efficiency and selectivity than basic nitrogen compounds, pyridine and quinoline. Then, the key experiment factors, extraction temperature, extraction time, mass ratio of ILs to model oil, and initial N-content, were explored and optimized. Meanwhile, the extraction mechanism was studied by analyzing the intermolecular interactions that formed between the anions of the adopted ILs and neutral nitrogen compounds through molecular simulation. And the investigated four ILs were ascertained to be the potential extractants with high separation capacity for indole and carbazole. In addition, the reusability of the IL extractant was confirmed.

Carbazole

Coal tar

Quinoline

10.1021/acs.energyfuels.8b02297

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Citations (53)

Integrated investigation for extractive denitrogenation of fuel oils with Eco-friendly Piperazine-Based ionic liquids

Fuel (2022)

Peng Gao Lin Yang Ji‐Xiang Wang Jun Gao Dongmei Xu

Piperazine

Environmentally Friendly

Hydrodenitrogenation