Catalytic Fast Pyrolysis of Rice Straw to Aromatics over Hierarchical HZSM-5 Treated with Different Organosilanes

Zihao Zhang, Hao Cheng, Hao Chen, Jing Li, Kequan Chen, Xiuyang Lu, Pingkai Ouyang, Jie Fu

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Hierarchical HZSM-5 with tunable acidity, zeolitic crystallinity, and porosity were prepared using different organosilanes and used for the production of aromatics from the catalytic fast pyrolysis (CFP) of rice straw. As the chain length of organosilanes changed, the composition of the products including aromatics and coke varied greatly. Additionally, the introduction of ammonium ions into organosilanes led to a lower yield of aromatics and a higher yield of coke. Transmission electron microscopy, temperature-programmed desorption of NH 3 , N 2 adsorption-desorption (Brunauer-Emmett-Teller), and X-ray diffraction were used to explore the influence of the morphological structure, acidity distribution, textural properties, and crystallinity on the CFP of rice straw. The results indicated that the crystallinity, textural properties, and total acidity had a great influence on the synthesis of aromatics.

Original languageEnglish
Pages (from-to)307-312
Number of pages6
JournalEnergy and Fuels
Volume33
Issue number1
DOIs
StatePublished - 17 Jan 2019

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