Catalytic fast hydropyrolysis of seaweed biomass with different zeolite catalysts to produce high-grade bio-oil
| Autor: | Yamin Hu, Qian Wang, Lujiang Xu, Bin Cao, Shuang Wang, Jiancheng Li, Haiwen Wang, Bahram Barati, Kaihan Xie |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
021110 strategic
defence & security studies Environmental Engineering Denitrification General Chemical Engineering 0211 other engineering and technologies Biomass Alcohol 02 engineering and technology Microporous material 010501 environmental sciences 01 natural sciences Catalysis chemistry.chemical_compound chemistry Yield (chemistry) Environmental Chemistry Organic chemistry Safety Risk Reliability and Quality Zeolite Pyrolysis 0105 earth and related environmental sciences |
| Zdroj: | Process Safety and Environmental Protection. 146:69-76 |
| ISSN: | 0957-5820 |
| Popis: | This paper studies the conversion of seaweed into liquid fuels through catalytic fast hydropyrolysis (CHP) with microporous ZSM-5, mesoporous MCM-41 and their mixtures for high-quality bio-oil production. Although the catalytic fast pyrolysis could increase bio-oil yield, the higher content of acids, furans and phenols in bio-oil were produced in the N2 atmosphere, which could aggravate the catalyst deactivation and increase thermal instability. The pyrolysis process in the presence of H2 with no catalyst showed a minor impact on the production yields. While the synergy of H2 with ZSM-5 and MCM-41 was found to substantially increase the bio-oil yield 36.22 % to 51.48 % and 41.84 %, respectively. Moreover, the CHP process not only increased the bio-oil yield but also enhanced its quality. Besides, entire aromatics content in the bio-oil from the CHP process increased, whereas the small molecule acids contents declined. Also, alcohol and ester content increased by 10.40 % and 3.58 %, respectively. Furthermore, furans and ketones were not detected, and the denitrification reactions were also improved with the co-catalyst. The present results suggest that CHP can be a viable way to convert seaweed biomass into liquid bio-fuel. |
| Databáze: | OpenAIRE |
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