SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2021, Vol. 32 ›› Issue (4): 307-314.DOI: 10.1016/j.cjche.2020.10.008

• Biotechnology and Bioengineering • 上一篇    下一篇

Hydrogenolysis of organosolv hydrolyzed lignin over high-dispersion Ni/Al-SBA-15 catalysts for phenolic monomers

Ying Xu1,2,3,4, Pengru Chen1, Wei Lv1,2,3, Chenguang Wang1,2,3, Longlong Ma1,2,3, Qi Zhang1,2,3   

  1. 1 Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
    2 Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China;
    3 Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China;
    4 Jiangsu Key Laboratory for Biomass Energy and Material, Nanjing 210042, China
  • 收稿日期:2020-01-06 修回日期:2020-10-17 出版日期:2021-04-28 发布日期:2021-06-19
  • 通讯作者: Ying Xu
  • 基金资助:
    The authors gratefully acknowledge the National Natural Science Foundation of China (No. 51676191 & 5181101221), Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (No. 2017BT01N092), "Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of the Chinese Academy of Sciences(No. XDA 21060102) and Jiangsu Key Laboratory for Biomass Energy and Material(JSBEM201905).

Hydrogenolysis of organosolv hydrolyzed lignin over high-dispersion Ni/Al-SBA-15 catalysts for phenolic monomers

Ying Xu1,2,3,4, Pengru Chen1, Wei Lv1,2,3, Chenguang Wang1,2,3, Longlong Ma1,2,3, Qi Zhang1,2,3   

  1. 1 Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
    2 Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China;
    3 Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China;
    4 Jiangsu Key Laboratory for Biomass Energy and Material, Nanjing 210042, China
  • Received:2020-01-06 Revised:2020-10-17 Online:2021-04-28 Published:2021-06-19
  • Contact: Ying Xu
  • Supported by:
    The authors gratefully acknowledge the National Natural Science Foundation of China (No. 51676191 & 5181101221), Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (No. 2017BT01N092), "Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of the Chinese Academy of Sciences(No. XDA 21060102) and Jiangsu Key Laboratory for Biomass Energy and Material(JSBEM201905).

摘要: Efficiency and recycling of catalysts are important for the lignin hydrogenolysis to obtain phenolic monomers. In this work, a series of high-dispersion Ni/Al-SBA-15 catalysts were prepared by a direct and effective preparation method, and then used in the hydrogenolysis of diphenyl ether (DE) and organosolv hydrolyzed lignin (OHL) for phenolic monomers. The universality of as-made catalysts in different solvents and cyclic performance were investigated. Results showed that the addition of ethylene glycol (EG) during the loading process of Ni promoted the dispersion of metal efficiently. High dispersion of Ni species could highly enhance the conversion of DE and the OHL which Ni/Al-SBA-15(1EG) exhibited the excellent catalytic performance. Decalin was found to be most effective solvent on the conversion of DE (99.16%). 84.77% liquefaction ratio and 21.36% monomer yield were achieved, and no obvious char was observed after the depolymerization of OHL in ethanol solvent at 280℃ for 4 h over the Ni/Al-SBA-15(1EG) catalyst.

关键词: Lignin, Hydrogenolysis depolymerization, High-dispersion, Ni-based catalyst, Al-SBA-15

Abstract: Efficiency and recycling of catalysts are important for the lignin hydrogenolysis to obtain phenolic monomers. In this work, a series of high-dispersion Ni/Al-SBA-15 catalysts were prepared by a direct and effective preparation method, and then used in the hydrogenolysis of diphenyl ether (DE) and organosolv hydrolyzed lignin (OHL) for phenolic monomers. The universality of as-made catalysts in different solvents and cyclic performance were investigated. Results showed that the addition of ethylene glycol (EG) during the loading process of Ni promoted the dispersion of metal efficiently. High dispersion of Ni species could highly enhance the conversion of DE and the OHL which Ni/Al-SBA-15(1EG) exhibited the excellent catalytic performance. Decalin was found to be most effective solvent on the conversion of DE (99.16%). 84.77% liquefaction ratio and 21.36% monomer yield were achieved, and no obvious char was observed after the depolymerization of OHL in ethanol solvent at 280℃ for 4 h over the Ni/Al-SBA-15(1EG) catalyst.

Key words: Lignin, Hydrogenolysis depolymerization, High-dispersion, Ni-based catalyst, Al-SBA-15