Modified nickel-based catalysts for improved steam reforming of biomass tar: A critical review

Gao, Ningbo; Salisu, Jamilu; Quan, Cui; Williams, Paul T.

doi:10.1016/j.rser.2021.111023

Cited by 177 publications

(54 citation statements)

References 159 publications

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“…The challenge is therefore the development of small decentralised plants that are economically convenient [30]. Furthermore, the conversion of tar is a further issue, that suggests the subsequent catalytic upgrade by reforming [31][32][33][34][35]. Catalytic cracking of tar can be performed at temperature higher than 1000 °C and dolomite or olivine as catalyst.…”

Section: Emerging Processes For H 2 Production From Biomass or Biomass Derived Substratesmentioning

confidence: 99%

Catalytic Production of Renewable Hydrogen for Use in Fuel Cells: A Review Study

Rossetti

Tripodi

2022

Top Catal

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Hydrogen production from renewable sources is gaining increasing importance for application as fuel, in particular with high efficiency and low impact devices such as fuel cells. In addition, the possibility to produce more sustainable hydrogen for industrial application is also of interest for fundamental industrial processes, such as ammonia and methanol synthesis. Catalytic processes are used in most options for the production of hydrogen from renewable sources. Catalysts are directly involved in the main transformation, as in the case of reforming and of electro-/photo-catalytic water splitting, or in the upgrade and refining of the main reaction products, as in the case of tar reforming. In every case, for the main processes that reached a sufficiently mature development stage, attempts of process design, economic and environmental impact assessment are presented, on one hand to finalise the demonstration of the technology, on the other hand to highlight the challenges and bottlenecks. Selected examples are described, highlighting whenever possible the role of catalysis and the open issues, e.g. for the H2 production from reforming, aqueous phase reforming, biomass pyrolysis and gasification, photo- and electro-catalytic processes, enzymatic catalysis. The case history of hydrogen production from bioethanol for use in fuel cells is detailed from the point of view of process design and techno-economic validation. Examples of steady state or dynamic simulation of a centralised or distributed H2 production unit are presented to demonstrate the feasibility of this technology, that appears as one of the nearest to market. The economic feasibility seems demonstrated when producing hydrogen starting from diluted bioethanol.

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Section: Emerging Processes For H 2 Production From Biomass or Biomass Derived Substratesmentioning

confidence: 99%

Catalytic Production of Renewable Hydrogen for Use in Fuel Cells: A Review Study

Rossetti

Tripodi

2022

Top Catal

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“…Moreover, the complex nature of the volatile stream derived from the pyrolysis of biomass and waste plastics causes a fast deactivation rate. 58 Thus, a remarkable research effort has been made in recent years to develop new catalysts and overcome the mentioned challenges. Accordingly, a wide variety of catalysts based on different supports, promoters, and active phases have been proposed in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, highly selective and active catalysts are required to enhance H 2 production and ensure full conversion of pyrolysis volatiles and therefore avoid tar formation. Moreover, the complex nature of the volatile stream derived from the pyrolysis of biomass and waste plastics causes a fast deactivation rate . Thus, a remarkable research effort has been made in recent years to develop new catalysts and overcome the mentioned challenges.…”

Section: Introductionmentioning

confidence: 99%

Progress on Catalyst Development for the Steam Reforming of Biomass and Waste Plastics Pyrolysis Volatiles: A Review

et al. 2021

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In recent decades, the production of H 2 from biomass, waste plastics, and their mixtures has attracted increasing attention in the literature in order to overcome the environmental problems associated with global warming and CO 2 emissions caused by conventional H 2 production processes. In this regard, the strategy based on pyrolysis and in-line catalytic reforming allows for obtaining high H 2 production from a wide variety of feedstocks. In addition, it provides several advantages compared to other thermochemical routes such as steam gasification, making it suitable for its further industrial implementation. This review analyzes the fundamental aspects involving the process of pyrolysis-reforming of biomass and waste plastics. However, the optimum design of transition metal based reforming catalysts is the bottleneck in the development of the process and final H 2 production. Accordingly, this review focuses especially on the influence the catalytic materials (support, promoters, and active phase), synthesis methods, and pyrolysis-reforming conditions have on the process performance. The results reported in the literature for the steam reforming of the volatiles derived from biomass, plastic wastes, and biomass/plastics mixtures on different metal based catalysts have been compared and analyzed in terms of H 2 production.

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“…To the best of our knowledge, there are comprehensives reviews on these topics: (1) modification and development of Ni-based catalysts for biomass tar reforming, , (2) development of catalysts for steam reforming of a biomass tar model, (3) recent progress, challenges, and perspectives in catalytic tar elimination, − (4) coke formation and deactivation during tar reforming, and (5) design of anti-coking, anti-poisoning, and anti-sintering catalysts in biomass tar reforming . Most recently, char-derived catalysts with cheap prices and excellent activities have also attracted substantial attention in biomass tar reforming. , However, few works make the effort on the aspects of the deactivation mechanism and regeneration of the deactivated catalysts after tar reforming.…”

Section: Introductionmentioning

confidence: 99%

“…For the active metal, the primary and secondary pyrolyses products from biomass tar reforming, as well as the reverse Boudouard reaction, could produce carbon deposition to cover the active center and consequently result in catalyst deactivation. To the best of our knowledge, there are comprehensives reviews on these topics: (1) modification and development of Ni-based catalysts for biomass tar reforming, 37,38 (2) development of catalysts for steam reforming of a biomass tar model, 39 (3) recent progress, challenges, and perspectives in catalytic tar elimination, 40−42 (4) coke formation and deactivation during tar reforming, 43 and (5) design of anti-coking, anti-poisoning, and anti-sintering catalysts in biomass tar reforming. 44 Most recently, char-derived catalysts with cheap prices and excellent activities have also attracted substantial attention in biomass tar reforming.…”

Section: ■ Introductionmentioning

confidence: 99%

Understandings of Catalyst Deactivation and Regeneration during Biomass Tar Reforming: A Crucial Review

Ren

Cao

Yang

et al. 2021

ACS Sustainable Chem. Eng.

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Value-added chemicals originating from biomass gasification in the presence of advanced catalysts have proved to be promising for valuable chemical generation via deep processing. In the issues of biomass gasification, the deactivation of heterogeneous catalysts is a common problem during the reforming of biomass tar and derived model compounds. Herein, deactivation pathways and regeneration methods are crucial to understand the production of value-added chemicals and guide the design of heterogeneous catalysts during biomass gasification. Unfortunately, to the best of our knowledge, there still has been no review to conclude the recent advances in catalyst deactivation and regeneration. To address the issues mentioned above, in this perspective, common catalysts for biomass tar reforming are first discussed. Then, key features and considerations of catalyst deactivation especially catalyst poisoning and carbon deposition are comprehensively reviewed based on the latest literature reports. Finally, the possible methods of tar elimination, metallic site recovery, and catalyst optimization are reviewed. Meanwhile, the future perspectives toward catalyst design, deactivation, and regeneration in tar reforming are shared. Through this perspective, the existing challenges, solutions, and future strategies in tar reforming or other gas−solid reactions are expected to be made clearer for following research on practical applications on an industrial scale.

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Modified nickel-based catalysts for improved steam reforming of biomass tar: A critical review

Cited by 177 publications

References 159 publications

Catalytic Production of Renewable Hydrogen for Use in Fuel Cells: A Review Study

Catalytic Production of Renewable Hydrogen for Use in Fuel Cells: A Review Study

Progress on Catalyst Development for the Steam Reforming of Biomass and Waste Plastics Pyrolysis Volatiles: A Review

Understandings of Catalyst Deactivation and Regeneration during Biomass Tar Reforming: A Crucial Review

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