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Catalytic Improvement of Biomass Gasification Process
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Catalytic Improvement of Biomass Gasification Process

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Catalysis Enhanced Processes".

Deadline for manuscript submissions: closed (27 February 2026) | Viewed by 1869

Special Issue Editors

Dr. Xinxin Dong

E-Mail Website
Guest Editor
School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210023, China
Interests: catalytic upgrading of producer gas; catalytic conversion of C1 energy; catalytic disposal of solid waste
Dr. Jing Gu

E-Mail Website
Guest Editor
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
Interests: thermochemical conversion of combustible solid waste; efficient and clean utilization of organic waste
Dr. Xiaojia Wang

E-Mail Website
Guest Editor
School of Energy and Environment, Southeast University, Nanjing 210096, China
Interests: chemical looping gasification of biomass; fluidized bed technology; reactor flow and heat transfer simulation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Gasification, one of the major thermochemical conversion methods, is becoming a promising technology for biomass utilization with a positive environmental impact. Its versatile role in contributing to the demand for heat, electricity and syngas has qualified it as a decentralized energy conversion option. Its significant advantages in terms of renewability, carbon neutrality and high efficiency render this technology highly popular in countries with strong support for renewables and unused biomass. The use of the catalytic approach to improve the biomass gasification process has been widely researched in academia and applied in industry, ranging from feedstock pretreatment, gas–solid–liquid product distribution, in situ and ex situ tar abatement, gas composition regulation and downstream upgrading.     

This Special Issue on “Catalytic Improvement of Biomass Gasification Process” welcomes submissions on novel catalytic findings related to the biomass gasification process. Research methods including process modeling, experimental studies, theoretical calculations or their combinations are accepted. Topics include, but are not limited, to the following areas concerning biomass gasification:

  1. Catalytic pretreatment of feedstock;
  2. Intensification of the catalytic process;
  3. Catalytic adjustment of products;
  4. Catalytic removal of tar;
  5. Catalytic upgrading and conversion of gas;
  6. Catalytic utilization of char.

Dr. Xinxin Dong
Dr. Jing Gu
Dr. Xiaojia Wang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • biomass gasification
  • catalysts
  • process intensification
  • system modeling
  • experimental study
  • molecular dynamics
  • reaction mechanism
  • fluid behavior

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Published Papers (2 papers)

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Research

19 pages, 992 KB  
Article
Catalytic Reforming Strategies for Tar Reduction and Hydrogen Enhancement in Biomass Gasification
by Ersin Üresin
Processes 2026, 14(5), 862; https://doi.org/10.3390/pr14050862 - 8 Mar 2026
Viewed by 383
Abstract
Catalytic biomass gasification is considered a promising route for the production of hydrogen-rich syngas. However, the impact of catalytic enhancement on gas composition is a complex phenomenon, as experimental outcomes are often strongly dependent on reactor configurations and kinetic effects. To address these [...] Read more.
Catalytic biomass gasification is considered a promising route for the production of hydrogen-rich syngas. However, the impact of catalytic enhancement on gas composition is a complex phenomenon, as experimental outcomes are often strongly dependent on reactor configurations and kinetic effects. To address these challenges, a thermodynamic equilibrium-based modeling approach was developed to theoretically investigate the influence of catalytic enhancement in biomass steam gasification. The gasification process was modeled using Gibbs free energy minimization, focusing on the elemental composition of biomass and the equilibrium distribution among the major gaseous species, namely H2, CO, CO2, CH4, and H2O. The effects of the different catalyst types, including dolomite, Ni/olivine, and iron-based catalysts, were examined through catalyst-dependent activity coefficients. Simulations were carried out under steam gasification conditions at atmospheric pressure, with particular emphasis on the influence of temperature, steam-to-biomass ratio, and catalyst activity on syngas composition. The results showed that increasing catalyst activity enhanced hydrogen production while suppressing methane formation, primarily through intensified tar reforming and water–gas shift reactions. The model successfully reproduced widely accepted thermodynamic trends reported in the literature. Overall, the proposed framework can provide a flexible and computationally efficient screening-level tool for the theoretical assessment of catalytic effects in biomass gasification, offering valuable insights for preliminary catalyst selection and conceptual process design. Full article
(This article belongs to the Special Issue Catalytic Improvement of Biomass Gasification Process)
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13 pages, 3223 KB  
Article
Boosting Agroforestry Waste Valorization: Red Mud Oxygen Carriers with Tailored Oxygen Release for Enhanced Chemical Looping Gasification
by Fengxia An, Jiajun Chen, Ke Zhuang, Didi Gai, Ying Yu, Fanhui Shen, Xiaojia Wang and Sheng Wang
Processes 2025, 13(6), 1716; https://doi.org/10.3390/pr13061716 - 30 May 2025
Cited by 1 | Viewed by 858
Abstract
In this study, red mud oxygen carriers were obtained by varying the preparation temperature and characterized using XRD, SEM, BET, and H2-TPR. The results showed that the oxygen carrier prepared at 1000 °C exhibited high reactivity due to clear grain boundaries, [...] Read more.
In this study, red mud oxygen carriers were obtained by varying the preparation temperature and characterized using XRD, SEM, BET, and H2-TPR. The results showed that the oxygen carrier prepared at 1000 °C exhibited high reactivity due to clear grain boundaries, uniform size, high porosity, and smooth grain morphology. Additionally, the release of oxygen was accelerated, as indicated by the H2-TPR results. The water hyacinth, an aquatic plant of agroforestry waste, was selected as the research object, and the chemical looping gasification (CLG) reaction performance with prepared red mud carriers was investigated. The experiment results showed that the total gas yield (Yg) of the carriers prepared at 1000 °C reached a maximum of 1.02 Nm3/kg, had a high low-level heating value (LHV) of 12.06 MJ/Nm3, cold gas efficiency (CGE) of 91.49%, and carbon conversion rate (ηc) of 82.65%. This indicated that the red mud carriers synthesized at 1000 °C have a faster oxygen release rate, more concentrated oxygen release, and stronger reaction activity. Full article
(This article belongs to the Special Issue Catalytic Improvement of Biomass Gasification Process)
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