Hydrogen production by supercritical water gasification of fruit pulp in the presence of Ru/C

Demirel, Elif; Ayas, Nezihe

doi:10.1016/j.ijhydene.2015.12.005

Cited by 62 publications

(29 citation statements)

References 50 publications

(41 reference statements)

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“…Gasification of fruit pulp in supercritical water catalyzed by Ru/C was investigated at varying temperatures, residence times, as well as biomass and catalyst ratios by Elif and Nezihe (2016), who demonstrated that H2 yield increased by 400% at temperatures greater than 500°C. Huang et al (2017) studied the catalytic supercritical water gasification of glucose over Ni/Zr(Ce,Y)O2-δ catalysts at 500°C, 23-24 MPa, and feed concentration of 10 wt.%, and reported that carbon gasification efficiency was improved as Ni concentration was increased from 0.1 to 0.7.…”

Section: Tablementioning

confidence: 99%

Applications of subcritical and supercritical water conditions for extraction, hydrolysis, gasification, and carbonization of biomass: a critical review

et al. 2017

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Please cite this article as: Lachos-Perez D., Brown A.B., Mudhoo A., Martinez J., Timko M.T., Rostagno M.A., Forster-Carneiro T. Subcritical and supercritical water extraction, hydrolysis, gasification and carbonization of biomass: a critical review. Biofuel Research Journal 14 (2017) HIGHLIGHTSØAdvances of research trends in development of subcritical and supercritical water processes technologies are reviewed.Essential aspects of sub-and supercritical water applied to extraction, hydrolysis, carbonization and gasification processes are discussed. ØEquipment design, process parameters, and types of biomass used for sub-and supercritical water process are presented. ØBioactive compounds, reducing sugars, hydrogen, biodiesel, and hydrothermal char are the final products of sub-and supercritical water processes. This review summarizes the recent essential aspects of subcritical and supercritical water technology applied to the extraction, hydrolysis, carbonization, and gasification processes. These are clean and fast technologies which do not need pretreatment, require less reaction time, generate less corrosion and residues, do not use toxic solvents, and reduce the synthesis of degradation byproducts. The equipment design, process parameters, and types of biomass used for subcritical and supercritical water process are presented. The benefits of catalysis to improve process efficiency are addressed. Bioactive compounds, reducing sugars, hydrogen, biodiesel, and hydrothermal char are the final products of subcritical and supercritical water processes. The present review also revisits advances of the research trends in the development of subcritical and supercritical water process technologies. GRAPHICAL ABSTRACT ARTICLE INFO ABSTRACT

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Section: Tablementioning

confidence: 99%

Applications of subcritical and supercritical water conditions for extraction, hydrolysis, gasification, and carbonization of biomass: a critical review

et al. 2017

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“…The literature data demonstrate that Ni-based systems are also most popular in this case [84][85][86][87]. In fact, promising results were obtained for catalysts containing noble metals as well [88]. However, nickel catalysts have a greater chance of being implemented on a larger scale due to their lower cost and comparable activity with Ru or Pt.…”

Section: Catalysts For the Production Of A Hydrogen-rich Gas From Ligmentioning

confidence: 99%

Development of Heterogeneous Catalysts for Thermo-Chemical Conversion of Lignocellulosic Biomass

Grams

Ruppert

2017

Energies

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Lignocellulosic biomass is one of the most attractive renewable resources that can be used for the production of biofuels and valuable chemicals. However, problems associated with the low efficiency of its conversion and poor selectivity to desired products remain. Therefore, in recent years researchers have focused on the design of highly active and stable catalysts, enabling an increase in the effectiveness of lignocellulosic biomass processing. This work is devoted to the presentation of the latest trends in the studies of the heterogeneous catalysts used in thermo-chemical conversion of such feedstock. The systems applied for the production of both bio-oil and hydrogen-rich gas are discussed. Zeolites, mesoporous materials, metal oxides, supported metal catalysts, and modifications of their structure are described. Moreover, the impact of the physicochemical properties of the presented catalyst on their catalytic performance in the mentioned processes is demonstrated.

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“…In addition, the SCW can supply hydrogen atoms as a reactant for the hydrogen product through the steam reforming and water-gas shift reactions. Elif et al' study on SCWG of fruit pulp in the presence of Ru/C showed that maximum hydrogen gasification (the ratio of moles of H in gas phase to moles of H in biomass) was found as 213.5% at 6008C [2]. Also, Sheikhdavoodi et al's study on SCWG of bagasse achieved higher hydrogen gasification efficiency (the ratio of hydrogen in gas phase to hydrogen in feed stock) of 250% with KOH catalyst [3].…”

Section: Introductionmentioning

confidence: 98%

Interactive effects of phenol, naphthalene and acetic acid during the supercritical water gasification process

Wang

Gao

Yang

et al. 2017

Env Prog and Sustain Energy

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Phenol, acetic acid, and naphthalene, as the most common and refractory intermediates during the supercritical water gasification (SCWG) of biomass were selected as the model compounds, and the their mutual interactive effects during the SCWG process were investigated. The gasification performances of one‐component solutions and their two‐ and three‐components mixtures were thoroughly studied in a tubular reactor at 550°C, 25 MPa, reaction time of 20 s. Results showed that for the one‐component solutions, the difficulty degree of degradation order of the three compounds was naphthalene > phenol > acetic acid, and concentration of the reactants showed little influence on the gasification efficiencies. For the two‐components solutions, acetic acid promoted the degradation of phenol and naphthalene, and the gasification of phenol and naphthalene inhibited each other. The 3D curved surface for gas yields and total organic concentration (TOC) removal efficiencies of three‐components mixture clearly showed that the increasing concentration of acetic acid increased the H2 and CO2 yields. While the interactive effects of the three compounds were favorable for CH4 yield. Acetic acid played a positive effect on TOC removal, while the increasing concentration of naphthalene was unfavorable for the degradation of TOC, and the inhibition effect was higher when phenol existed. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1140–1148, 2018

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Hydrogen production by supercritical water gasification of fruit pulp in the presence of Ru/C

Cited by 62 publications

References 50 publications

Applications of subcritical and supercritical water conditions for extraction, hydrolysis, gasification, and carbonization of biomass: a critical review

Applications of subcritical and supercritical water conditions for extraction, hydrolysis, gasification, and carbonization of biomass: a critical review

Development of Heterogeneous Catalysts for Thermo-Chemical Conversion of Lignocellulosic Biomass

Interactive effects of phenol, naphthalene and acetic acid during the supercritical water gasification process

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