Catalytic pyrolysis of pine needle biomass over Fe–Co–K catalyst for H2-rich syngas production: Influence of catalyst preparation
Jin Deng,
Yujie Zhou,
Yan Zhao,
Lingshuai Meng,
Tao Qin,
Xin Chen,
Kuo Li and
Shenfu Yuan
Energy, 2022, vol. 244, issue PA
Abstract:
In this work, the effects of preparation methods of Fe–Co–K catalysts on biomass pyrolysis were studied in a fixed bed reactor under 0.1 MPa N2 and 700 °C. The results showed that Fe–Co bimetallic catalyst has better activity than Fe. the yields of H2 and CO increased from 84.90 ml/g and 63.94 ml/g (Fe) to 98.42 ml/g and 85.43 ml/g (Fe + Co) prepared by co-impregnation, respectively, and the CO2 yield was 276.94 ml/g. The preparation of Fe∗ + Co∗ catalyst by co-precipitation could not only improve the yields of H2 (138.23 ml/g) and CO (89.75 ml/g), but also reduce the CO2 yield (225.19 ml/g). In the Fe∗ + Co∗ catalyst system, the addition of 0.6 wt% K increased the yields of H2 and CO to 153.85 ml/g and 107.80 ml/g. Characterization proved that the crystallinity of Co3Fe7 in Fe∗+Co∗ was stronger than that of Fe + Co, and the addition of Co facilitates the reduction of Fe, K promoted the dispersion of Fe∗ + Co∗ and enhanced the catalytic activity. This study provided theoretical support for increasing the yields of H2 and CO while reducing the CO2 yield.
Keywords: Biomass; Catalytic pyrolysis; Fe–Co alloy; K promoter; Hydrogen; CO2 reduction (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (3)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:244:y:2022:i:pa:s0360544221028516
DOI: 10.1016/j.energy.2021.122602
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