Molten carbonate fuel cells fed with biogas: Combating H2S

Ciccoli, Roberto; Cigolotti, Viviana; Presti, Roberto Lo; Massi, E; McPhail, Stephen J.; Monteleone, G.; Moreno, Anna Maria Coves; Naticchioni, V.; Paoletti, Claudia; Simonetti, E.; Zaza, F.

doi:10.1016/j.wasman.2010.02.022

Cited by 59 publications

(25 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Of primary concern to the fuel cell system are halocarbons, as they convert to acid gas that can corrode catalytic surfaces [22][23][24]. For Molten Carbonate Fuel Cells (MCFC's), degradation due to halogens is also a long term effect; halogens react with the electrolyte, thereby affecting the performance of the MCFC over time [23,25].…”

Section: Volatile Organic Compounds (Voc)mentioning

confidence: 99%

Fuel quality issues in stationary fuel cell systems.

Papadias¹,

Ahmed²

2012

View full text Add to dashboard Cite

Section: Volatile Organic Compounds (Voc)mentioning

confidence: 99%

Fuel quality issues in stationary fuel cell systems.

Papadias¹,

Ahmed²

2012

View full text Add to dashboard Cite

“…These contaminants, especially H 2 S, decrease the activity of the catalysts in the fuel cell electrodes, and also can cause corrosion in metallic peripheral equipments. Thus, H 2 S in biogas has to be reduced to the MCFC tolerance limits (< 1 ppm) (Bove and Lunghi, 2005;Ciccoli et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Investigation of Impregnated Activated Carbon Properties Used in Hydrogen Sulfide Fine Removal

Isik-Gulsac

2016

Braz. J. Chem. Eng.

View full text Add to dashboard Cite

-The effects of relative humidity (RH), carbon dioxide (CO 2 ), methane (CH 4 ), oxygen (O 2 ) presence and gas hourly space velocity (GHSV) on H 2 S adsorption dynamics of KOH/CaO impregnated activated carbon are investigated in this study. X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray detector (SEM-EDX), thermogravimetric analysis (TGA), and Fourier Transform Infrared Spectroscopy (FTIR) techniques are applied and nitrogen adsorption characteristics are determined for characterization. The presence of water, O 2 and lower GHSV has beneficial effects on the activated carbon performance. CO 2 decreases the adsorption capacity due to its acidic characteristics. Best adsorption capacity is obtained as 13 wt % in KOH/CaO impregnated activated carbon, in a CH 4 (60%)/CO 2 (38%)/O 2 (2%) gas atmosphere, at ambient temperature, RH 90 and 5000 h -1 GHSV. Sulphur species formation was verified with the help of SEM-EDX, XRD, TGA, FTIR and nitrogen adsorption analysis on the exhausted samples.

show abstract

“…For the evaluation of the combustion conditions effects, on the contrary, it is preferable to refer to the symmetrical and normalized equivalence ratio Φ=φ/(1+φ), where φ=(F/O)/(F/O) st [26]: Φ=0.5 represents the stoichiometric combustion conditions, while Φ<0.5 correspond to lean fuel mixture and Φ>0.5 to rich fuel mixture. After balancing the synthesis combustion redox reaction R10 by considering the electron transfer from the oxidizing specie NO 3 -to the reducing specie C 6 H 5 O 7 3-and NH 4 + , it was chosen to investigate Φ values from 0.25 to 0.75, affecting reaction temperature and type of combustion. As regards solution acidity, instead, it was chosen to fix pH=4 for all the sample, since both needs of metal complexation and avoiding metal hydroxides formations are satisfied at this level: Fe 3+ reaches complete complexation with citrate pH higher than 3 and no hydroxides precipitation occurs [34]; La 3+ is fully complexed at a pH value of 1.5 [35].…”

Section: Perovskite Sensing Materials Experimentalmentioning

confidence: 99%

Perovskite sensing materials for syngas composition monitoring and biomass gasifier numerical model validation: A preliminary approach

Pallozzi¹,

Carlo²,

Zaza³

et al. 2016

AIP Conference Proceedings

Self Cite

View full text Add to dashboard Cite

Abstract. Biomass gasification represents a suitable choice for global environmental impact reduction, but more efforts on the process efficiency need to be conducted in order to enhance the use of this technology. Studies on inputs and outputs of the process, as well as measurements and controls of syngas composition and correlated organic and inorganic impurities, are crucial points for the optimization of the entire process: models of the system and sensing devices are, thus, very attractive for this purpose. In particular, perovskite based chemoresistive sensors could represent a promising technology, since their simplicity in function, relatively low cost and direct high temperature operation. The aim of this work is to develop a steam fluidized bed biomass gasifier model, for the prediction of the process gas composition, and new perovskite compounds, LaFeO 3 based, as sensing material of chemoresistive sensors for syngas composition and impurities measurements. Chemometric analysis on the combustion synthesis via citrate-nitrate technique of LaFeO 3 was also performed, in order to evaluate the relationship between synthesis conditions and perovskite materials and, thus, sensor properties. Performance of different sensors will be tested, in next works, with the support of the developed gasifier model.

show abstract

Molten carbonate fuel cells fed with biogas: Combating H2S

Cited by 59 publications

References 24 publications

Fuel quality issues in stationary fuel cell systems.

Fuel quality issues in stationary fuel cell systems.

Investigation of Impregnated Activated Carbon Properties Used in Hydrogen Sulfide Fine Removal

Perovskite sensing materials for syngas composition monitoring and biomass gasifier numerical model validation: A preliminary approach

Contact Info

Product

Resources

About