Upgrading biomass pyrolysis gas by conversion of methane at high temperature: Experiments and modelling

Valin, Sylvie; Cancès, Julien; Castelli, Pierre; Thiéry, Sébastien; Dufour, Anthony; Boissonnet, Guillaume; Spindler, B.

doi:10.1016/j.fuel.2008.11.033

Cited by 41 publications

(41 citation statements)

References 13 publications

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“…When the free void distance is below the quenching distance, the reaction proceeds via a homogenous gas phase reaction instead. Soot formation was observed by Valin et al [10] when reforming a producer-gas-like gas. In this work the methane conversion of a simulated producer gas during thermal reforming at high temperatures (1273-1773 K) and varying residence times was investigated.…”

Section: Validation Of Numerical Modelmentioning

confidence: 90%

“…Soot formation during reforming of hydrocarbon fuels has been observed in several studies [5,10,15,16,27]. These mainly concerned the partial oxidation of methane-air mixtures although ethane and propane was also studied [15].…”

Section: Validation Of Numerical Modelmentioning

confidence: 99%

“…The reacting gas was injected into the reactor and preheated to the desired temperature in the preheating zone before entering the reaction zone. The gas was then cooled to 1173 K and maintained at that temperature until it left the experimental setup [10]. Soot formation was observed during the experiments but not measured quantitatively.…”

Section: Validation Of Numerical Modelmentioning

confidence: 99%

“…Traditionally the synthesis gas used for the Fischer-Tropsch process was produced via coal gasification. Lately research has been focused on how to produce synthesis gas by utilizing gas produced via biomass gasification [4][5][6][7][8][9][10]. The gas produced by the gasifier is often referred to as producer gas.…”

Section: Introductionmentioning

confidence: 99%

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Modeling of soot formation during partial oxidation of producer gas

Svensson

Tunå

Hulteberg

et al. 2013

Fuel

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PostprintThis is the accepted version of a paper published in Fuel. This paper has been peer-reviewed but does not include the final publisher proof-corrections or journal pagination.Citation for the original published paper (version of record):Svensson, H., Tunå, P., Hulteberg, C., Brandin, J. (2013) Modeling of soot formation during partial oxidation of producer gas. Fuel AbstractSoot formation in a reverse flow partial oxidation reactor for reforming of gasifier producer gas has been studied. The process was modeled using a detailed reaction mechanism to describe the kinetics of soot formation. The numerical model was validated against experimental data from the literature and showed good agreement with reported data. Nine cases with differing composition was simulated in order to study the effect of water content, hydrogen content and methane content of the gas. The CO and CO 2 content was also varied to study its effect on soot formation as well as the tar content of the gas. The results show that steam and hydrogen content of the inlet gas had lower influence on the soot formation than expected. The methane content greatly influenced the soot formation. Results also showed that increasing the CO 2 content of the gas reduces the amount of soot formed and gives a higher energy efficiency and methane conversion. For the case with no tars in the ingoing gas the soot formation was significantly reduced. It can be concluded that removing the tars in an energy efficient way, prior to the partial oxidation reactor, will greatly reduce the amount of soot formed. Further investigation of tar reduction is needed and experimental research of this process is undergoing.

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Section: Validation Of Numerical Modelmentioning

confidence: 90%

Section: Validation Of Numerical Modelmentioning

confidence: 99%

Section: Validation Of Numerical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling of soot formation during partial oxidation of producer gas

Svensson

Tunå

Hulteberg

et al. 2013

Fuel

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“…In spite the fact that we observed soot formation in the experiment, we did not include the mechanism for its formation in the table. The problem of the soot formation has been studied experimentally and numerically for over 30 years and still is a challenge [13][14][15][16]. The important steps in soot formation from gas-phase hydrocarbons are believed to be formation of the first aromatic ring, formation of polycyclic aromatic hydrocarbons (PAHs), soot inception, and subsequently soot growth.…”

Section: Introductionmentioning

confidence: 99%

Chemical Kinetics of Methane Pyrolysis in Microwave Plasma at Atmospheric Pressure

Dors

Nowakowska

Jasiński

et al. 2013

Plasma Chem Plasma Process

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Results of chemical kinetics modeling in methane subjected to the microwave plasma at atmospheric pressure are presented in this paper. The reaction mechanism is based on the methane oxidation model without reactions involving nitrogen and oxygen. For the numerical calculations 0D and 1D models were created. 0D model uses Calorimetric Bomb Reactor whereas 1D model is constructed either as Plug Flow Reactor or as a chain of Plug Flow Reactor and Calorimetric Bomb Reactor. Both models explain experimental results and show the most important reactions responsible for the methane conversion and production of H 2 , C 2 H 2 , C 2 H 4 and C 2 H 6 detected in the experiment. Main conclusion is that the chemical reactions in our experiment proceed by a thermal process and the products can be defined by considering thermodynamic equilibrium. Temperature characterizing the methane pyrolysis is 1,500-2,000 K, but plasma temperature is in the range of 4,000-5,700 K, which means that methane pyrolysis process is occurring outside the plasma region in the swirl gas flowing around the plasma.

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Tar Evolution in the Two Stage Fluid Bed-Plasma Gasification Process

Materazzi

2016

Springer Theses

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Upgrading biomass pyrolysis gas by conversion of methane at high temperature: Experiments and modelling

Cited by 41 publications

References 13 publications

Modeling of soot formation during partial oxidation of producer gas

Modeling of soot formation during partial oxidation of producer gas

Chemical Kinetics of Methane Pyrolysis in Microwave Plasma at Atmospheric Pressure

Tar Evolution in the Two Stage Fluid Bed-Plasma Gasification Process

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