Microwave reforming with char-supported Nickel-Cerium catalysts: A potential approach for thorough conversion of biomass tar model compound

Li, Jian; Tao, Junyu; Yan, Beibei; Cheng, Kexin; Chen, Guanyi; Hu, Jianli

doi:10.1016/j.apenergy.2019.114375

Cited by 45 publications

(4 citation statements)

References 49 publications

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“…These results can be confirmed from the XRD results. It can be explained that the special properties of heterogeneous nucleation sites provided by Ce enhance the adsorption at grain boundaries, thus inhibiting the growth of Ni particles . Compared with used Ni/AB‐2 catalyst, the surface of reacted Ni‐Ce/AB‐2 catalyst in Figure C, D has a considerable quantity of filamentous carbons primarily consisted of CNTs and the result is consistent with TG curves.…”

Section: Resultssupporting

confidence: 74%

Development of activated biochar supported Ni catalyst for enhancing toluene steam reforming

2020

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Catalytic steam reforming of tar is considered to be an attractive pathway for tar removal and H 2 production in the modern world. In this study, activation of biochar (B) from pine wood pyrolysis was performed to boost its specific surface area and pore structure. The activated biochar (AB) was used as a catalyst support with the aim to enhance the catalytic activity. The catalytic reforming performance of toluene over Ni/AB catalyst was investigated, and the catalytic behavior of Ni/AB catalysts was compared with Ni/Al 2 O 3 and Ni/B. The effect of potassium hydroxide (KOH) to biochar ratio, Ni loading, reforming temperature, weight hourly space velocity and steam to carbon ratio(S/C) on the performance of Ni/AB catalysts were studied. The results showed that Ni/AB catalysts exhibited a superior catalytic activity for carbon conversion and H 2 production to Ni/B and Ni/Al 2 O 3 catalysts. In addition, high carbon conversion (86.2%) and H 2 production (64.3%) can be achieved with Ni/AB catalyst under the optimal operating conditions. Furthermore, in order to improve the stability of the Ni/AB catalyst, Ce was introduced to Ni/AB catalyst. According to stability tests, the H 2 concentration of Ni-Ce/AB catalysts was still higher than 2.24 mmol/min even after 20 hours reaction.

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Section: Resultssupporting

confidence: 74%

Development of activated biochar supported Ni catalyst for enhancing toluene steam reforming

2020

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“…Li et al [143] The hydrogen concentration in the produced gas could reach 28.2% by volume, and it was shown that, with the successful integration of the thermal, catalysis, and microwave effects, the toluene was removed entirely and converted into high-quality syngas. The energy efficiency was calculated at 98.97 g/kWh, which showed potential for the application.…”

Section: Mesh Based Particle Model Thermochemical Combustionmentioning

confidence: 99%

A Review of Trends in the Energy Use of Biomass: The Case of the Dominican Republic

et al. 2022

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This review examines the use of residual biomass as a renewable resource for energy generation in the Dominican Republic. The odology includes a thorough examination of scientific publications in recent years about logistics operations. The use of mathematical models can be beneficial for the selection of areas with a high number of residual biomass and processing centers; for the design of feedstock allocation; for the planning and selection of the mode of transport; and for the optimization of the supply chain, logistics, cost estimation, availability of resources, energy efficiency, economic performance, and environmental impact assessment. It is also essential to consider the exhaustive analysis of the most viable technological solutions among the conversion processes, in order to guarantee the minimum emissions of polluting or greenhouse gases. In addition, this document provides a critical review of the most relevant challenges that are currently facing logistics linked to the assessment of biomass in the Dominican Republic, with a straightforward approach to the complementarity and integration of non-manageable renewable energy sources.

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“…Huang et al pointed out that the performance of carbon-supported bimetallic nickel-copper catalysts is superior to that of single metal catalysts, with tar conversion rates and hydrogen production reaching 93.2% and 0.304 L/g, respectively, at 800 • C [10]. Li et al reported that the multimetal doped Ni-4% Ce/HZSM-5 catalyst exhibited good catalytic activity and stability, with a toluene conversion rate of 94.5% [11]. Huang et al demonstrated that toluene conversion was up to 96.83% by using ferrite NiFe 2 O 4 as catalysts, with a hydrogen production rate of 0.91 L/g [6].…”

Section: Introductionmentioning

confidence: 99%

Deciphering the Pivotal Reaction Conditions for Hydrogen Production from Tar Catalytic Cracking by Perovskite

Chen,

Xi,

et al. 2024

Catalysts

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The catalytic cracking of pyrolysis gasification tar into H2 has garnered significant attention due to its exceptional conversion efficiency. In this study, the effects of pollutant concentration, residence time, weight hourly space velocity (WHSV), and reaction temperature on the hydrogen performance of LaFe0.5Ni0.5O3 perovskite were comprehensively investigated. Results revealed that moderate pollutant concentration (0.3 g/L), low-medium residence time (250 SCCM), and low WHSV (0.24 gtoluene/(gcat·h)) facilitated efficient interaction between LaFe0.5Ni0.5O3 and toluene, thus achieving high hydrogen production. An increase in reaction temperature had minimal effect on the hourly hydrogen production above 700 °C but caused a significant increase in methane production. Additionally, the effects of oxygen evolution reactions, methane reactions, and methane catalytic cracking reactions of perovskite induced by different reaction conditions on tar cracking products were discussed in detail. Compared to previous reports, the biggest advantages of this system were that the hydrogen production per gram of tar was as high as 1.002 L/g, and the highest hydrogen content in gas-phase products reached 93.5%, which can maintain for approximately 6 h. Finally, LaFe0.5Ni0.5O3 showed good thermal stability, long-term stability, and catalyst reactivation potential.

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Microwave reforming with char-supported Nickel-Cerium catalysts: A potential approach for thorough conversion of biomass tar model compound

Cited by 45 publications

References 49 publications

Development of activated biochar supported Ni catalyst for enhancing toluene steam reforming

Development of activated biochar supported Ni catalyst for enhancing toluene steam reforming

A Review of Trends in the Energy Use of Biomass: The Case of the Dominican Republic

Deciphering the Pivotal Reaction Conditions for Hydrogen Production from Tar Catalytic Cracking by Perovskite

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