Catalytic degradation of oxygenates in Fischer–Tropsch aqueous phase effluents to fuel gas via hydrodeoxygenation over Ru/AC catalyst

Chen, Lungang; Zhu, Yulei; Zheng, Hongyan; Zhang, Chenghua; Zhang, Bin; Li, Yongwang

doi:10.1002/jctb.2690

Cited by 22 publications

(14 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The aqueous FT effluents, labeled Aqueous‐I, II and III, are obtained from Synfuels China Co. Ltd. which uses a co‐precipitated iron‐based slurry phase FT process. The composition of oxygenates (% (w/w)) is given in Table 1 1…”

Section: Methodsmentioning

confidence: 99%

“…They show the aggregation or migration of Ru particles on the surface of the catalyst, although the X‐ray diffraction (XRD) (Fig. 2) and N 2 physisorption results reveal no formation of crystalline Ru and no significant drop in surface area (dropping from 915 to 858 m 2 g −1 ) for the catalyst used 1. This indicates that the bonding of Ru particles with the oxygen‐anchoring group of the carbon surface species becomes weaker during a long‐term test in aqueous media.…”

Section: Introductionmentioning

confidence: 98%

“…In previous work,1 an aqueous‐phase hydrodeoxygenation (APHDO) process was carried out at 190 °C and 9.8 MPa to convert the organic oxygenates in aqueous FT effluents to fuel gas (i.e. methane and other gaseous alkanes) over Ru/AC.…”

Section: Introductionmentioning

confidence: 99%

“…methane and other gaseous alkanes) over Ru/AC. The Ru/AC catalyst exhibited high efficiency and a long‐term stability of 2 months for the conversion of oxygenates 1. Generally, carbon is used as support for heterogeneous hydrogenation catalysts operated in an aqueous environment, because of its high stability under both acidic and basic conditions 2.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Catalytic degradation of aqueous Fischer–Tropsch effluents to fuel gas over oxide‐supported Ru catalysts and hydrothermal stability of catalysts

Chen¹,

Zhu²,

Zheng³

et al. 2012

J of Chemical Tech & Biotech

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Catalytic degradation of aqueous Fischer–Tropsch effluents to fuel gas over oxide‐supported Ru catalysts and hydrothermal stability of catalysts

Chen¹,

Zhu²,

Zheng³

et al. 2012

J of Chemical Tech & Biotech

Self Cite

View full text Add to dashboard Cite

show abstract

“…[35][36][37] Relevant to the present work, Chen et al reported the degradation of oxygenates to hydrocarbons under a H 2 pressure of 98 bar using a Ru catalyst. 38,39 This reaction involves acid-catalyzed dehydration of alcohols and subsequent hydrogenation to paraffins. 40 The reaction mixture in the work of Chen et al was slightly acidic due to the presence of organic acids.…”

Section: Catalytic Activity Measurementsmentioning

confidence: 99%

Structure sensitivity in the ruthenium nanoparticle catalyzed aqueous-phase Fischer–Tropsch reaction

Quek

Pestman

Santen

et al. 2014

Catal. Sci. Technol.

View full text Add to dashboard Cite

General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Structure sensitivity in the ruthenium nanoparticle catalyzed aqueous-phase Fischer-Tropsch reaction Xian-Yang Quek, Robert Pestman, Rutger A. van Santen and Emiel J. M. Hensen * Low-temperature Fischer-Tropsch reaction data are reported for Ru nanoparticles suspended in the water phase. Their activity and selectivity strongly depends on particle size, when varied between 1 to 5 nm. Small particles display high oxygenates selectivity. The Anderson-Schulz-Flory (ASF) chain-growth probability for oxygenates is significantly lower than that observed for hydrocarbons. The chain growth parameter for hydrocarbon formation is independent of particle size. For oxygenates it is constant only for particles larger than 3 nm. Oxygenate and hydrocarbon formation occur on different sites. The ASF chain-growth probability for oxygenate formation increases with temperature. For very small 1.2 nm particles it shows a maximum as a function of temperature. This unusual temperature dependence is due to relatively slow CO dissociation compared to the rate of C-C bond formation.

show abstract

Hydrogen Production through Aqueous‐Phase Reforming of Ethylene Glycol in a Washcoated Microchannel

et al. 2013

View full text Add to dashboard Cite

Aqueous-phase reforming (APR) of biocarbohydrates is conducted in a catalytically stable washcoated microreactor where multiphase hydrogen removal enhances hydrogen efficiency. Single microchannel experiments are conducted following a simplified model based on the microreactor concept. A coating method to deposit a Pt-based catalyst on the microchannel walls is selected and optimized. APR reactivity tests are performed by using ethylene glycol as the model compound. Optimum results are achieved with a static washcoating technique; a highly uniform and well adhered 5 μm layer is deposited on the walls of a 320 μm internal diameter (ID) microchannel in one single step. During APR of ethylene glycol, the catalyst layer exhibits high stability over 10 days after limited initial deactivation. The microchannel presents higher conversion and selectivity to hydrogen than a fixed-bed reactor. The benefits of using a microreactor for APR can be further enhanced by utilizing increased Pt loadings, higher reaction temperatures, and larger carbohydrates (e.g., glucose). The use of microtechnology for aqueous-phase reforming will allow for a great reduction in the reformer size, thus rendering it promising for distributed hydrogen production.

show abstract

Catalytic degradation of oxygenates in Fischer–Tropsch aqueous phase effluents to fuel gas via hydrodeoxygenation over Ru/AC catalyst

Cited by 22 publications

References 51 publications

Catalytic degradation of aqueous Fischer–Tropsch effluents to fuel gas over oxide‐supported Ru catalysts and hydrothermal stability of catalysts

Catalytic degradation of aqueous Fischer–Tropsch effluents to fuel gas over oxide‐supported Ru catalysts and hydrothermal stability of catalysts

Structure sensitivity in the ruthenium nanoparticle catalyzed aqueous-phase Fischer–Tropsch reaction

Hydrogen Production through Aqueous‐Phase Reforming of Ethylene Glycol in a Washcoated Microchannel

Contact Info

Product

Resources

About