Effect of ZSM-5 on hydrocarbon selectivity of corn stalk catalytic pyrolysis at different pyrolysis temperatures

CHAI Mei-yun; LIU Rong-hou; HE Yi-feng; LI Chong

Volume 48 Issue 5

May 2020

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Article Navigation > Journal of Fuel Chemistry and Technology > 2020 > 48(5): 577-583

CHAI Mei-yun, LIU Rong-hou, HE Yi-feng, LI Chong. Effect of ZSM-5 on hydrocarbon selectivity of corn stalk catalytic pyrolysis at different pyrolysis temperatures[J]. Journal of Fuel Chemistry and Technology, 2020, 48(5): 577-583.

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CHAI Mei-yun, LIU Rong-hou, HE Yi-feng, LI Chong. Effect of ZSM-5 on hydrocarbon selectivity of corn stalk catalytic pyrolysis at different pyrolysis temperatures[J]. Journal of Fuel Chemistry and Technology, 2020, 48(5): 577-583.

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Effect of ZSM-5 on hydrocarbon selectivity of corn stalk catalytic pyrolysis at different pyrolysis temperatures

Biomass Energy Engineering Research Centre, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China

Funds:

the National Natural Science Foundation of China 51776127

Received Date: 2020-02-24
Rev Recd Date: 2020-04-29

Available Online: 2021-01-23

Publish Date: 2020-05-10

Abstract

Abstract

In order to study the effect of ZSM-5 on the catalytic pyrolysis characteristic and hydrocarbon selectivity of corn stalk catalytic pyrolysis at different pyrolysis temperatures, the thermogravimetric analysis (TGA) was used to obtain the TG and DTG profiles of corn stalk pyrolysis with and without ZSM-5, and the pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) tests were conducted to analyze the products distribution of corn stalk pyrolysis with and without ZSM-5 at 450, 500, 550, and 600 ℃. The results show that ZSM-5 can decrease the pyrolysis temperature at the highest pyrolysis rate by 23 ℃. Without ZSM-5, both the categories of pyrolysis compounds and the hydrocarbon yield increase with the increase of pyrolysis temperature, and the selectivity of hydrocarbon reaches to the highest value of 11.33% at 600 ℃. However, with ZSM-5, the hydrocarbon yield increases at first and then decreases with the increase of pyrolysis temperature, and the selectivity of hydrocarbon is up to the highest value of 29.24% at 550 ℃. Toluene, indene, naphthalene and 2-methyl-naphthalene are evolved as the main compounds with ZSM-5. And the maximum yields of toluene and naphthalene reach to 4.76% and 3.96%, respectively.
- corn stalk,
- ZSM-5,
- pyrolysis,
- TGA,
- Py-GC/MS,
- hydrocarbon selectivity

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References(22)

References

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