Production of hydrogen from brewery wastewater by aqueous phase reforming with Pt/C catalysts

Oliveira, A.S.; Baeza, J.A.; Calvo, L.; Alonso-Morales, Noelia; Heras, F. G. De Las; Rodrı́guez, Juan J.; Gilarranz, Miguel Á.

doi:10.1016/j.apcatb.2018.12.061

Cited by 43 publications

(26 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The lone pair on pyridinic N endows the N-doped carbon materials with Lewis basicity. 42 In the present study, the pH value of the reaction system (acidic or alkaline) was effectively modulated by the nitrogen-doping amount. The pH measurements shown in Table 1 confirmed the increase in reaction basicity with the nitrogen content in the hydrochar support.…”

Section: Resultsmentioning

confidence: 64%

Ni/Hydrochar Nanostructures Derived from Biomass as Catalysts for H₂ Production through Aqueous-Phase Reforming of Methanol

Gai

Wang

Liu

et al. 2021

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

Aqueous-phase reforming of organic molecules to hydrogen is a promising strategy to address the production and storage of sustainable hydrogen with lower costs; however, the synthesis of inexpensive transition metal (TM) catalysts with desirable activity and stability for the reaction is still challenging. In this work, a green and efficient approach for modulating the geometric/electronic structure of metal/hydrochar nanocomposites from sustainable biomass was proposed for enhancing H 2 production via aqueous-phase reforming of methanol (APRM). A Ni/HC nanocomposite with a special thistle (a perennial species of flowering plant)-like three-dimensional (3D) architecture was first constructed as a model catalyst to expatiate the critical role of modulating an ordered mesoporous structure and interface electron transfer for enhancing APRM. Deliberately balancing heteroatom doping and soft templates contribute to the successful fabrication of the thistle-like superstructure, and such hierarchically porous architectures demonstrated efficient catalysis for APRM, owing to their unique properties, including a highly uniform morphology, narrow particle size distribution, and mesoporous texture with excellent accessibility. In addition, the experimental investigation and density functional theory calculations both substantiated that the combination of heteroatom doping and soft templates was beneficial for the strong electronic metal−support interaction (EMSI) of the metal/hydrochar nanocomposite, which leads to enhanced methanol adsorption, activation, and subsequently improved APRM performance. The electronic structure of the metal/hydrochar nanocomposite played a more significant effect on the intrinsic APRM activity than the geometric structure like the formation of the thistle-like superstructure. Benefiting from the tailored electronic and geometric structure, the resulting Ni 0.1 /HC-N 1.5 -S 1 catalyst exhibited an unprecedented average turnover frequency (TOF) of 89.5 mol H2 / mol Ni /min, higher than any other known platinum group metal-free catalysts, approaching the reactivity of the state-of-the-art noble metal-based APRM catalysts, while showing excellent stability over 10 consecutive reaction cycles.

show abstract

Section: Resultsmentioning

confidence: 64%

Ni/Hydrochar Nanostructures Derived from Biomass as Catalysts for H₂ Production through Aqueous-Phase Reforming of Methanol

Gai

Wang

Liu

et al. 2021

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

“…However, aqueous phase reforming (APR) is emerging as a promising way for hydrogen production, investigated, in principle, with model organic compounds but more recently tested for some high organic load wastewaters from biomass-related industrial processes, like brewery effluents. 151 Nutrient recovery from the PW is a relevant issue, which deserves much more attention than the thus far received. In general, significant relative amounts of N and P in the raw biomass are retained in the hydrochar.…”

Section: Challenges and Perspectivesmentioning

confidence: 99%

“…In that respect, wet air oxidation has the advantage of a full-scale demonstrated technology in terms of highly effective COD abatement but with the counterpart that one energy-valuable product is obtained. However, aqueous phase reforming (APR) is emerging as a promising way for hydrogen production, investigated, in principle, with model organic compounds but more recently tested for some high organic load wastewaters from biomass-related industrial processes, like brewery effluents …”

Section: Challenges and Perspectivesmentioning

confidence: 99%

Integration of Hydrothermal Carbonization and Anaerobic Digestion for Energy Recovery of Biomass Waste: An Overview

et al. 2021

View full text Add to dashboard Cite

Hydrothermal carbonization is emerging as a promising eco-friendly technology for the management of wet biomass wastes through energy recovery. It avoids drying of the feedstock and operates at a much lower temperature than conventional thermal conversion technologies, giving rise to a carbonaceous solid, hydrochar, of improved fuel quality with respect to the starting biomass. However, the aqueous fraction resulting from this process, the so-called process water, represents a troublesome secondary waste requiring effective treatment because of the high chemical oxygen demand and the presence of varying amounts of nutrients. Anaerobic digestion appears as a potential solution allowing significant reduction of the organic load while producing methane-rich biogas, thus contributing to energy recovery. Integrating hydrothermal carbonization and anaerobic digestion is gaining interest in the literature. This review compiles the reported studies on the application of hydrothermal carbonization coupled with anaerobic digestion for energy recovery of different biomass wastes, analyzing the energy balances. The main characteristics of the resulting HC and the methanogenic potential of the process waters are reviewed in connection with the operating conditions, as well as the possibility of nutrient recovery. Life cycle assessment and economic studies are included.

show abstract

“…In some cases, water use as a solvent or cosolvent has been reported to result in some selectivity and activity improvement compared with organic solvents. − Water has also been reported to mediate and directly participate in catalytic reactions. − However, water at high temperature is very reactive and can hydrolyze many oxide supports and induce sintering, leaching, and restructuring of supported metal particles. , It is therefore an urgent challenge to improve the hydrothermal stability of supported metal catalysts for efficient biomass conversions . Strategies to improve the stability of supported metal catalysts for aqueous-phase biomass reactions can likely also be applied for other aqueous-phase catalytic processes such as water remediation and treatment, catalytic wet air oxidation, electrochemical reactions, proton exchange membrane fuel cells, hydrodechlorination, Sonogashira, Suzuki, and Heck reactions, and many other condensed-phase reactions. − …”

Section: Introductionmentioning

confidence: 99%

Improving Hydrothermal Stability of Supported Metal Catalysts for Biomass Conversions: A Review

2021

View full text Add to dashboard Cite

Catalyst stability is one of the greatest challenges faced for the utilization of heterogeneous catalysts in the development of biomass conversion to chemicals and fuels. As many biomass transformations are performed in water, hydrothermal stability of supported metal catalysts is especially critical. This Review aims to increase attention on the hydrothermal stability of supported metal catalysts by looking at the stability of common catalyst supports, deactivation modes, and strategies to improve their durability. While common oxides such as silica, alumina, zeolite, and zirconia are not stable to hydrolytic attack, carbon, and titania show promising resistance. In addition to catalyst support leaching, amorphization, and collapse caused by hydrothermal conditions, supported metal catalysts can deactivate by sintering, leaching, poisoning, carbon deposition, and restructuring of the active metal sites. Several strategies are discussed to improve stability of supported metal catalysts: coating on the oxide, overcoating on the supported metal catalyst, metal−support interaction, embedding metal particles, bimetallic catalysts, reactor design and process optimization, and other methods. A fundamental understanding of liquid−solid interactions and deactivation mechanisms, as well as strategies to improve the catalyst durability will help to develop robust catalytic materials for the scale-up and further application of aqueous-phase biomass conversion processes.

show abstract

Production of hydrogen from brewery wastewater by aqueous phase reforming with Pt/C catalysts

Cited by 43 publications

References 49 publications

Ni/Hydrochar Nanostructures Derived from Biomass as Catalysts for H₂ Production through Aqueous-Phase Reforming of Methanol

Ni/Hydrochar Nanostructures Derived from Biomass as Catalysts for H₂ Production through Aqueous-Phase Reforming of Methanol

Integration of Hydrothermal Carbonization and Anaerobic Digestion for Energy Recovery of Biomass Waste: An Overview

Improving Hydrothermal Stability of Supported Metal Catalysts for Biomass Conversions: A Review

Contact Info

Product

Resources

About

Production of hydrogen from brewery wastewater by aqueous phase reforming with Pt/C catalysts

Cited by 43 publications

References 49 publications

Ni/Hydrochar Nanostructures Derived from Biomass as Catalysts for H2 Production through Aqueous-Phase Reforming of Methanol

Ni/Hydrochar Nanostructures Derived from Biomass as Catalysts for H2 Production through Aqueous-Phase Reforming of Methanol

Integration of Hydrothermal Carbonization and Anaerobic Digestion for Energy Recovery of Biomass Waste: An Overview

Improving Hydrothermal Stability of Supported Metal Catalysts for Biomass Conversions: A Review

Contact Info

Product

Resources

About

Ni/Hydrochar Nanostructures Derived from Biomass as Catalysts for H₂ Production through Aqueous-Phase Reforming of Methanol

Ni/Hydrochar Nanostructures Derived from Biomass as Catalysts for H₂ Production through Aqueous-Phase Reforming of Methanol