Syngas production by non-catalytic reforming of biogas with steam addition under filtration combustion mode

Espinoza, Lorena; Guerrero, Fabián; Ripoll, Nicolás; Toledo, Mario; Guerrero, Lorna; Carvajal, Andrea; Barahona, Andrea

doi:10.1016/j.ijhydene.2018.06.136

Cited by 17 publications

(4 citation statements)

References 30 publications

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“…The benefit of water addition to noncatalytic methane reforming was also realized by Valin et al and Espinoza et al Espinoza et al studied the filtration combustion of biogas/air mixtures with steam addition for biosyngas conversion to syngas and Valin et al studied the biosyngas thermal upgrading. Both found that the soot formation decreases with increasing the water content in the feed gas.…”

Section: Introductionmentioning

confidence: 89%

“…The noncatalytic thermal upgrading can withstand the harsh requirement for feed gas conditions regarding the composition of feed gas and the activity of catalyst while maintaining a similar reforming performance. For example, partial oxidation in inert porous media was researched for a high-temperature biogas conversion, 18 noncatalytic reforming of biogas with steam addition under the filtration combustion mode, 19 and so on.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and Theoretical Studies on Water-Added Thermal Processing of Model Biosyngas for Improving Hydrogen Production and Restraining Soot Formation

Chytil

Lee

Lødeng

et al. 2022

Ind. Eng. Chem. Res.

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The upgrading of biosyngas to convert methane into syngas is a necessary step for hydrogen production from biomass. However, this process is highly energy-demanding. In this study, a model biosyngas containing H 2 , CH 4 , CO, and CO 2 were thermally treated between 1200 and 1500 °C. The gas mixture, comprised of H 2 (33 vol %), CH 4 (12 vol %), CO (28 vol %), CO 2 (25 vol %), and He (2 vol %), was diluted with argon and the effect of reaction temperature (1200−1500 °C), water addition (0−44.3 mol %), and residence time (23, 46, and 76 μs in corresponding to flow rates of 1500, 2500, and 5000 mL/min at normal temperature and pressure, respectively) were studied. A possible reaction scheme for the upgrading of the model gas is proposed based on the kinetic simulation with CHEMKIN. The main reaction pathways involve dry reforming of methane and reverse water-gas shift (WGS) reactions. The kinetic simulation explained the finding that CO production was negatively influenced by the water content via the WGS reaction. The main side reaction is the methane pyrolysis reaction which causes the formation of carbon. The carbon formed in the reforming was characterized by SEM and Raman spectroscopy. SiO 2 needle-like microdomains are observed at the top of the reactor heating zone, while the central part of the heating zone was covered by carbon with a disordered, amorphous, low-density soot structure. It is proposed that the SiO 2 species formed by the chemical reaction between the reactor wall material and the reactants act as a support to anchor the carbon formed.

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Section: Introductionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Studies on Water-Added Thermal Processing of Model Biosyngas for Improving Hydrogen Production and Restraining Soot Formation

Chytil

Lee

Lødeng

et al. 2022

Ind. Eng. Chem. Res.

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“…Two position electropneumatic gas sampling valves (10-and 6-port; VICI-Valco Instruments Company Inc., Houston, TX, USA) with a 1 mL sample loop were used in the chromatographic configuration. Separation was made by two porous polymer bead columns, 5 m Hayesep N R 80/100 (Supelco Analytical; Sigma-Aldrich, Saint Louis, Missouri, United States) for compounds with a low molecular weight, and 3 ft Molesieve 5A R 80/100 (Restek) for large-molecule adsorption (Espinoza et al, 2018). Quantification with TCD, which is a universal detector that has good sensitivity, extended linearity, and excellent stability (Hilborn and Monkman, 1975;McNair and Miller, 2008), was carried out based on the difference of thermal conductivity between the mobile phase and the gas to be analyzed (Budiman and Nuryatini, 2015).…”

Section: Chromatographic Analysismentioning

confidence: 99%

“…Previous experimental research using biogas and filtration combustion with gaseous and solid fuels exhibited promising results (Espinoza et al, 2018;Gonzalez et al, 2018). Thus, combining processes such as DR with POX in IPM would certainly offer several advantages, such as higher efficiencies to produce syngas, compared with independent processes.…”

Section: Introductionmentioning

confidence: 99%

Syngas Production From the Reforming of Typical Biogas Compositions in an Inert Porous Media Reactor

et al. 2020

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Syngas production by inert porous media combustion of rich biogas-air mixtures was studied experimentally, focusing on carbon dioxide utilization and process efficiency. Different gas mixtures of natural gas and carbon dioxide, which simulated a typical biogas composition of 100:0, 70:30, 55:45, and 40:60 (CH 4 :CO 2 ), were comparatively analyzed considering combustion waves temperatures and velocities, and chemical concentrations products, at high equivalence ratios of ϕ = 1.5 and ϕ = 2.0. Different CO 2 concentrations on biogas composition showed higher H 2 productions than on pure methane (100:0), mainly due to CO 2 reforming reactions. Also, syngas production, hydrogen yields, and process efficiency by means of biogas filtration combustion were higher than under methane filtration combustion. Results of the thermochemical conversion of biogas show an alternative and promising non-catalytic technique to CO 2 utilization.

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Role of tin on the electronic properties of Ni/Al2O3 catalyst and its effect over the methane dry reforming reaction

Silva

Santos

Nunes

et al. 2021

Applied Catalysis A: General

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Syngas production by non-catalytic reforming of biogas with steam addition under filtration combustion mode

Cited by 17 publications

References 30 publications

Experimental and Theoretical Studies on Water-Added Thermal Processing of Model Biosyngas for Improving Hydrogen Production and Restraining Soot Formation

Experimental and Theoretical Studies on Water-Added Thermal Processing of Model Biosyngas for Improving Hydrogen Production and Restraining Soot Formation

Syngas Production From the Reforming of Typical Biogas Compositions in an Inert Porous Media Reactor

Role of tin on the electronic properties of Ni/Al2O3 catalyst and its effect over the methane dry reforming reaction

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