生物质催化热解典型催化剂结焦行为研究进展,Sustainable Energy & Fuels

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生物质催化热解典型催化剂结焦行为研究进展
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2022-04-14 , DOI: 10.1039/d2se00168c
Mortaza Gholizadeh ₁ , Xun Hu ₂

Affiliation

催化热解是一种很有前途的热化学方法，通过对生物质热解中获得的挥发物进行脱氧来提升生物油的燃料性能。然而，聚合或催化形式的焦炭的形成是开发用于催化热解的稳健催化剂的主要障碍。迄今为止，已经开发和评估了许多用于生物质催化热解的催化剂，包括各种沸石、金属或金属氧化物基催化剂、贵金属基催化剂、无机盐、赤泥和FCC催化剂。这些催化剂中几乎没有一种不受焦炭形成的影响，但这些催化剂显示出明显的焦炭形成趋势。此外，催化剂的不同性质导致形成具有不同性质的焦炭。所以，有必要重新审视用于生物质催化热解的不同类型的催化剂，特别是它们的焦化行为和所形成的焦炭的性质。这可为进一步开发用于催化热解的抗结焦催化剂提供理论参考。本文研究了每组催化剂的优缺点，并解释了每组催化剂的反应机理。综合上述结果，可以得出结论，生物质热解催化剂的开发仍处于起步阶段，需要进一步的基础研究来获得具有高提质效率和低生焦率的良好催化剂。这可为进一步开发用于催化热解的抗结焦催化剂提供理论参考。本文研究了每组催化剂的优缺点，并解释了每组催化剂的反应机理。综合上述结果，可以得出结论，生物质热解催化剂的开发仍处于起步阶段，需要进一步的基础研究来获得具有高提质效率和低生焦率的良好催化剂。这可为进一步开发用于催化热解的抗结焦催化剂提供理论参考。本文研究了每组催化剂的优缺点，并解释了每组催化剂的反应机理。综合上述结果，可以得出结论，生物质热解催化剂的开发仍处于起步阶段，需要进一步的基础研究来获得具有高提质效率和低生焦率的良好催化剂。

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Progress in understanding the coking behavior of typical catalysts in the catalytic pyrolysis of biomass

Catalytic pyrolysis is a promising thermochemical method to upgrade the fuel property of bio-oil through the deoxygenation of volatiles obtained from the pyrolysis of biomass. However, the formation of coke in either polymeric or catalytic form is the main obstacle in the development of robust catalysts for catalytic pyrolysis. Up to now, there have been numerous catalysts developed and evaluated for the catalytic pyrolysis of biomass, including various zeolites, metal or metal oxide-based catalysts, noble metal-based catalysts, inorganic salts, red mud, and FCC catalysts. Almost none of these catalysts are immune to coke formation, but these catalysts show distinct tendencies towards coke formation. Moreover, the varying properties of the catalysts lead to the formation of coke with varying nature. Therefore, there is a need to revisit the different types of catalysts used in the catalytic pyrolysis of biomass, especially their coking behaviour and the property of the coke formed. This could provide a theoretical reference for the further development of coking-resistant catalysts for catalytic pyrolysis. The advantages and disadvantages of each group of catalysts are investigated herein and reaction mechanism for each group of catalysts is explained. Considering the results, it can be concluded that the development of catalysts for biomass pyrolysis is still in the initial stages and further fundamental studies are required to obtain favourable catalysts with high upgrading efficiency and low coke formation.

更新日期：2022-04-14

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