Green synthesis of ZSM-5 using silica fume and catalytic co-cracking of lignin and plastics for production of monocyclic aromatics

Hongbing Fu; Yufei Gu; Tianhua Gao; Fuwei Li; Hengshuo Gu; Hucheng Ge; Yuke Liu; Zhixia Li; Hongfei Lin; Jiangfei Cao

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Green synthesis of ZSM-5 using silica fume and catalytic co-cracking of lignin and plastics for production of monocyclic aromatics

Full Length Article | Updated：2026-01-06

- Green synthesis of ZSM-5 using silica fume and catalytic co-cracking of lignin and plastics for production of monocyclic aromatics
- Chinese Journal of Chemical Engineering Vol. 65, Issue 1, Pages: 92-105(2024)
- Affiliations：
  
  1. School of Chemistry and Chemical Engineering, Guangxi University,Nanning,China,530004
  2. Guangxi Bossco Environmental Protection Technology Co., Ltd.,Nanning,China,530007
  3. School of Environmental and Chemical Engineering, Zhaoqing University,Zhaoqing,China,526000
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2024
- Accepted：
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Hongbing Fu, Yufei Gu, Tianhua Gao, Fuwei Li, Hengshuo Gu, Hucheng Ge, Yuke Liu, Zhixia Li, Hongfei Lin, Jiangfei Cao. Green synthesis of ZSM-5 using silica fume and catalytic co-cracking of lignin and plastics for production of monocyclic aromatics[J]. Chinese Journal of Chemical Engineering, 2024, 65(1): 92-105.
DOI：

Hongbing Fu, Yufei Gu, Tianhua Gao, Fuwei Li, Hengshuo Gu, Hucheng Ge, Yuke Liu, Zhixia Li, Hongfei Lin, Jiangfei Cao. Green synthesis of ZSM-5 using silica fume and catalytic co-cracking of lignin and plastics for production of monocyclic aromatics[J]. Chinese Journal of Chemical Engineering, 2024, 65(1): 92-105. DOI：

摘要

Abstract

ZSM-5 with hierarchical pore structure was synthesized by a simple two-step hydrothermal crystallization from silica fume without using any organic ammonium templates. The synthesized ZSM-5 were oval shaped particles with a particle size about 2.0 lm and weak acid-dominated with proper Brønsted (B) and Lewis (L) acid sites. The ZSM-5 was used for catalytic co-cracking of

-octane and guaiacol

low-density polyethylene (LDPE) and alkali lignin (AL) to enhance the production of benzene

toluene

ethylbenzene and xylene (BTEX). The most significant synergistic effect occurred at

-octane/guaiacol at 1:1 and LDPE/AL at 1:3

under the condition

the achieved BTEX selectivity were 24% and 33% (mass) higher than the calculated values (weighted average). The highest BTEX selectivity reached 88.5%

which was 3.7% and 54.2% higher than those from individual cracking LDPE and AL. The synthesized ZSM-5 exhibited superior catalytic performance compared to the commercial ZSM-5

indicating potential application prospect.

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