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Research Priorities and Trends on Bioenergy: Insights from Bibliometric Analysis

Author

Listed:
  • Ruling Yuan

    (College of Energy and Power Engineering, Lanzhou University of Technology, No. 287 Langongping Road, Lanzhou 730050, China)

  • Jun Pu

    (Changzhou Key Laboratory of Biomass Green, Safe & High Value Utilization Technology, Institute of Urban and Rural Mining, Changzhou University, No. 21 Gehu Road, Changzhou 213164, China
    School of Environmental Science and Engineering, Changzhou University, No. 21 Gehu Road, Changzhou 213164, China)

  • Dan Wu

    (Changzhou Key Laboratory of Biomass Green, Safe & High Value Utilization Technology, Institute of Urban and Rural Mining, Changzhou University, No. 21 Gehu Road, Changzhou 213164, China)

  • Qingbai Wu

    (College of Energy and Power Engineering, Lanzhou University of Technology, No. 287 Langongping Road, Lanzhou 730050, China)

  • Taoli Huhe

    (Changzhou Key Laboratory of Biomass Green, Safe & High Value Utilization Technology, Institute of Urban and Rural Mining, Changzhou University, No. 21 Gehu Road, Changzhou 213164, China)

  • Tingzhou Lei

    (Changzhou Key Laboratory of Biomass Green, Safe & High Value Utilization Technology, Institute of Urban and Rural Mining, Changzhou University, No. 21 Gehu Road, Changzhou 213164, China)

  • Yong Chen

    (Changzhou Key Laboratory of Biomass Green, Safe & High Value Utilization Technology, Institute of Urban and Rural Mining, Changzhou University, No. 21 Gehu Road, Changzhou 213164, China
    Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, No. 2 Nengyuan Road, Guangzhou 510640, China)

Abstract

Replacing fossil fuels with bioenergy is crucial to achieving sustainable development and carbon neutrality. To determine the priorities and developing trends of bioenergy technology, related publications from 2000 to 2020 were analyzed using bibliometric method. Results demonstrated that the number of publications on bioenergy increased rapidly since 2005, and the average growth rate from 2005 to 2011 reached a maximum of 20% per year. In terms of publication quantity, impact, and international collaboration, the USA had been leading the research of bioenergy technology, followed by China and European countries. Co-occurrence analysis using author keywords identified six clusters about this topic, which are “biodiesel and transesterification”, “biogas and anaerobic digestion”, “bioethanol and fermentation”, “bio-oil and pyrolysis”, “microalgae and lipid”, and “biohydrogen and gasification or dark fermentation”. Among the six clusters, three of them relate to liquid biofuel, attributing that the liquid products of biomass are exceptional alternatives to fossil fuels for heavy transportation and aviation. Lignocellulose and microalgae were identified as the most promising raw materials, and pretreating technologies and efficient catalysts have received special attention. The sharp increase of “pyrolysis” and “gasification” from 2011 to 2020 suggested that those technologies about thermochemical conversion have been well studied in recent years. Some new research trends, such as applying nanoparticles in transesterification, and hydrothermal liquefaction in producing bio-oil from microalgae, will get a breakthrough in the coming years.

Suggested Citation

  • Ruling Yuan & Jun Pu & Dan Wu & Qingbai Wu & Taoli Huhe & Tingzhou Lei & Yong Chen, 2022. "Research Priorities and Trends on Bioenergy: Insights from Bibliometric Analysis," IJERPH, MDPI, vol. 19(23), pages 1-14, November.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:23:p:15881-:d:987334
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    References listed on IDEAS

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    1. Alvydas Zagorskis & Regimantas Dauknys & Mantas Pranskevičius & Olha Khliestova, 2023. "Research on Biogas Yield from Macroalgae with Inoculants at Different Organic Loading Rates in a Three-Stage Bioreactor," IJERPH, MDPI, vol. 20(2), pages 1-17, January.

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