Journal
JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 305, Issue -, Pages -Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2021.114274
Keywords
Biomass gasification; Catalyst activity; Catalyst development; Tar reduction
Categories
Funding
- Saudi Aramco, Oil Upgrading theme at King Fahd University of Petroleum and Minerals [6600011900]
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The paper discusses the potential technology of biomass valorization through catalytic gasification, focusing on the removal of generated tar. It reports updates on catalyst development for tar reduction, covering various materials and their impact on reaction activity and stability. Further areas for investigation are also identified in the review.
Biomass valorization via catalytic gasification is a potential technology for commercizalization to industrial scale. However, the generated tar during biomass valorization posing numerous problems to the overall reaction process. Thus, catalytic tar removal via reforming, cracking and allied processes was among the priority areas to researchers in the recent decades. This paper reports new updates on the areas of catalyst development for tar reduction. The catalyst survey include metallic and metal-promoted materials, nano-structured systems, meso-porous supports like zeolites and oxides, group IA and IIA compounds and natural catalysts based on dolomite, palygorskite, olivine, ilmenite, goethite and their modified derivatives. The influence of catalyst properties and parameters such as reaction conditions, catalyst preparation procedures and feedstock nature on the overall activity/selectivity/stability properties were simultaneously discussed. This paper not only cover to model compounds, but also explore to real biomass-derived tar for consistency. The area that require further investi-gation was identified in the last part of this review.
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