Influence of trace substances on methanation catalysts used in dynamic biogas upgrading

Jürgensen, Lars; Ehimen, Ehiaze Augustine; Born, Jens; Holm‐Nielsen, Jens Bo; Rooney, David

doi:10.1016/j.biortech.2014.09.080

Cited by 15 publications

(6 citation statements)

References 11 publications

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“…[98][99][100] Trace ammonia was also found to decrease the methanation catalyst activity via ammonia adsorption on the active catalyst sites in dynamic biogas upgrading process. 101 Even at ppm concentrations, sulfur compounds could still irreversibly affect the catalytic activity. 102 The adsorption of S blocks the active sites as well as accelerates the sintering and the oxidation of Ni 0 particles.…”

Section: Methanation Catalystsmentioning

confidence: 99%

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Recent advances in methanation catalysts for the production of synthetic natural gas

et al. 2015

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Section: Methanation Catalystsmentioning

confidence: 99%

“…Akamaru et al 224 carried out a DFT analysis of methanation reaction of carbon dioxide on Ru nanoparticle supported on TiO 2 (101). The potential energy diagram is shown in Fig.…”

Section: Co 2 Methanationmentioning

confidence: 99%

Recent advances in methanation catalysts for the production of synthetic natural gas

et al. 2015

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“…Biogas plants have been identified as well‐suited and economically attractive CO 2 source for the application of the methanation reaction , . Therefore, a plant concept was developed for this case which is illustrated in Fig.…”

Section: Development Of An Innovative Plant Concept For Co2methanationmentioning

confidence: 99%

CO₂ Methanation in Microstructured Reactors – Catalyst Development and Process Design

et al. 2019

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The sulfur tolerance of mono‐ and bimetallic ruthenium catalysts for CO2 hydrogenation was investigated in microchannel reactors. H2S was selected as a model compound. It was found that a Ru/CeO2 catalyst deactivates rapidly. Ni was a much better additive to improve the catalyst stability compared to Rh and serves as a sulfur trap. The influence of the support was evaluated showing that a SiO2‐supported catalyst has a higher stability and better selectivity compared to CeO2 and TiO2. A plant concept was developed comprising two‐step methanation with a first adiabatic reactor stage followed by a plate heat‐exchanger reactor with integrated cooling which allows more than 97 % CO2 conversion. A pilot plant will be put into operation in connection with a biogas plant and an electrolyser of 50 kW power consumption.

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“…Although not classified as tars, other volatile organic hydrocarbons can be detrimental for syngas utilization in fuel synthesis. Unsaturated hydrocarbons such as benzene, ethylene, and acetylene, for example, pose serious challenges to hydrogenation catalysts leading to deactivation by carbon deposition or coke formation, especially when the synthesis catalyst is applied in adiabatic fixed bed reactors. , Unless tars and unsaturated species are not turned into permanent, saturated light hydrocarbons (e.g., methane), these would need to be removed or better converted into H 2 and CO, thus obtaining significantly higher production efficiencies.…”

Section: Introductionmentioning

confidence: 99%

Plasma-Assisted Gasification for Waste-to-Fuels Applications

Materazzi

Taylor²

2019

Ind. Eng. Chem. Res.

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This paper firstly examines the experimental results from a 16 hours plasma assisted gasification trial for conversion of refuse derived fuel (RDF) into syngas suitable for biofuel production in a pilot plant. In particular the work focuses on the effect on the concurrent ash vitrification and tar reforming processes on the general composition of a syngas stream produced in a fluidised bed gasifier. The effect of plasma on tar reforming is showed by continuous monitoring of gas composition before and after the plasma converter, with reduction efficiencies typically exceeding 99%v/v for most hydrocarbons, SO2, NH3, NOx and organic sulphur. The test also investigates on the effect of plasma intensity on different contaminants reforming and syngas conditioning when varying the input power value at cracking-relevant temperatures. A simplified catalytic test is undertaken under continuous flow of cleaned syngas generated by the pilot plant to identify the short-term effects of waste-derived contaminants on catalysts activity when plasma refining is not operated.

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Influence of trace substances on methanation catalysts used in dynamic biogas upgrading

Cited by 15 publications

References 11 publications

Recent advances in methanation catalysts for the production of synthetic natural gas

Recent advances in methanation catalysts for the production of synthetic natural gas

CO₂ Methanation in Microstructured Reactors – Catalyst Development and Process Design

Plasma-Assisted Gasification for Waste-to-Fuels Applications

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Influence of trace substances on methanation catalysts used in dynamic biogas upgrading

Cited by 15 publications

References 11 publications

Recent advances in methanation catalysts for the production of synthetic natural gas

Recent advances in methanation catalysts for the production of synthetic natural gas

CO2 Methanation in Microstructured Reactors – Catalyst Development and Process Design

Plasma-Assisted Gasification for Waste-to-Fuels Applications

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Product

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CO₂ Methanation in Microstructured Reactors – Catalyst Development and Process Design