High efficiency production of substitute natural gas from biomass

Rabou, L.P.L.M.; Bos, Lex

doi:10.1016/j.apcatb.2011.10.034

Cited by 31 publications

(13 citation statements)

References 4 publications

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“…thiophenes, thioles, and their derivatives) and other problematic contaminants, and transforms them to mostly H2S. Thiophene in particular, although rarely measured in small scale plants, has been found to be particularly detrimental in catalytic systems, even at below ppm levels, due to the high sensitivity of synthesis catalysts to sulphur in all its forms (Rabou & Bos 2012;Rhyner et al 2014). This is hardly removed by conventional scrubbers (Kaufman Rechulski et al 2014) and reported to be one of the main obstacles in the use of waste fuels for BioSNG production (Czekaj et al 2007).…”

Section: The Two-stage Gasification Processmentioning

confidence: 99%

Production of BioSNG from waste derived syngas: Pilot plant operation and preliminary assessment

Materazzi

Taylor²,

Cozens

et al. 2018

Waste Management

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Bio-substitute natural gas (or BioSNG) produced from gasification of waste fuels and subsequent methanation of the product gas could play a crucial role in the decarbonisation of heating and transportation, and could be a vital part of the energy mix in the coming decades. The BioSNG demonstration plant described in this paper seeks to prove the technical feasibility of the thermal gasification of waste to renewable gas, through a preliminary experimental programme to take an existing stream of syngas, methanate it and show that it can be upgraded to gas grid quality requirements. The syngas used in the project is a waste-derived syngas from a twostage fluidised bed-plasma pilot facility, which is then converted and upgraded in a new, dedicated conversion and clean up plant. Extensive trials were undertaken on methanation and gas upgrading units for over 60 hours of continuous operation. The fundamentals of a once-through methanation process train have been established on the demonstration facility and a model built to extend the analysis over different operational parameters. Over the trials, methane outputs of greater than 50kWth

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Section: The Two-stage Gasification Processmentioning

confidence: 99%

Production of BioSNG from waste derived syngas: Pilot plant operation and preliminary assessment

Materazzi

Taylor²,

Cozens

et al. 2018

Waste Management

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“…In the last decade, several further 1 GW scale plants have been built and commissioned in China [12]. Due to its maturity, this reactor concept was recently adapted to the methanation of wood gasification derived producer gas, both in lab scale (technology readiness level (TRL) 5) [13,14] and in a semi commercial plant (technology readiness level (TRL) 8) [15].…”

Section: Gasification Plus Adiabatic Fixed Bed Methanation (Gobigas mentioning

confidence: 99%

“…As the first reactor does not reach full conversion, the effluent gas has to be cooled and fed to a series of further adiabatic reactors with intermittent cooling to reach full conversion [18]. The Energy Research Centre (ECN) of the Netherlands [13,14,19] and the Gothenburg Biogas project (GoBiGas) in Sweden [15] apply adiabatic fixed bed reactors within a process chain from wood to Bio-SNG. In both plants, specific effort has to be spent on the removal of aromatic compounds such as benzene and other unsaturated species (ethylene and acetylene), because these lead to irreversible catalyst deactivation by carbon deposition within the hot zones of the reactor.…”

Section: Gasification Plus Adiabatic Fixed Bed Methanation (Gobigas mentioning

confidence: 99%

“…An infrared-spectroscopy study was conducted to elucidate further details of the reaction mechanisms on the commercial catalyst [38]. By combining modulation-excitation DRIFTS (Diffuse-reflective IR Fourier Transform Spectroscopy) with isotope labelling (Deuterium D 2 , labelled 13 CO, and 12 C x H y species), it could be shown that at 300 C, methane and C 2 H x -species are broken down to carbon atoms on the surface under the chosen (diluted) conditions before forming deuteriated methane ( 12 CD 4 , 12 CHD 3 ), i.e. all bonds are broken on the catalyst surface.…”

Section: Gasification and Fluidized Bed Methanationmentioning

confidence: 99%

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Biosynthetic Natural Gas (Bio-SNG)

Schildhauer

2017

Encyclopedia of Sustainability Science and Technology

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and (char)coal). This enables using existing distribution infrastructure, conversion technologies for heat production and mobility and to follow existing value chains and business models. In regions with large-scale forest and paper industry (e.g. Scandinavia), also relative large plants converting several 100 MW th of wood to liquid fuels by high pressure processes can be operated. In regions with more limited biomass logistics, the production of methane is envisaged which allow for the realization of smaller conversion plants at reasonable specific costs. This methane from woodalso referred to as Bio-Synthetic Natural Gas (Bio-SNG)can be injected into the existing natural gas grid and then be used as CO 2-neutral substitute of fossil natural gas. This paper describes and compares the main process concepts for converting wood to Bio-SNG and highlights some of the existing demo-plants and projects.

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“…Today's biogas applications, i.e., heat and power generation or first-generation upgrading, require the H 2 S content of the desulfurized biogas to be <500 ppm and <4 ppm, respectively [27]. However, for second-generation utilization of biogas with a nickel catalyst, the H 2 S content of biogas is required to reduce to 10-100 ppb [28]. If the H 2 S is not removed from the biogas, it will react with nickel, blocking active sites and causing deactivation of the nickel catalyst according to the deactivation reaction (Equation (2)) below [20]:…”

Section: Introductionmentioning

confidence: 99%

Container-Sized CO2 to Methane: Design, Construction and Catalytic Tests Using Raw Biogas to Biomethane

Gaikwad

Villadsen

Rasmussen³

et al. 2020

Catalysts

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Direct catalytic methanation of CO2 (from CO2/CH4 biogas mixture) to produce biomethane was conducted in a pilot demonstration plant. In the demonstration project (MeGa-StoRE), a biogas desulfurization process and thermochemical methanation of biogas using hydrogen produced by water electrolysis were carried out at a fully operational biogas plant in Denmark. The main objective of this part of the project was to design and develop a reactor system for catalytic conversion of CO2 in biogas to methane and feed biomethane directly to the existing natural gas grid. A process was developed in a portable container with a 10 Nm3/h of biogas conversion capacity. A test campaign was run at a biogas plant for more than 6 months, and long-time operation revealed a stable steady-state conversion of more than 90% CO2 conversion to methane. A detailed catalytic study was performed to investigate the high activity and stability of the applied catalyst.

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High efficiency production of substitute natural gas from biomass

Cited by 31 publications

References 4 publications

Production of BioSNG from waste derived syngas: Pilot plant operation and preliminary assessment

Production of BioSNG from waste derived syngas: Pilot plant operation and preliminary assessment

Biosynthetic Natural Gas (Bio-SNG)

Container-Sized CO2 to Methane: Design, Construction and Catalytic Tests Using Raw Biogas to Biomethane

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