Conversion of a commercial spark ignition engine to run on hydrogen: Performance comparison using hydrogen and gasoline

Sopena, C.; Diéguez, P.M.; Sáinz, D.; Urroz, J.C.; Guelbenzu, Eugenio; Gandı́a, L.M.

doi:10.1016/j.ijhydene.2009.11.090

Cited by 109 publications

(64 citation statements)

References 25 publications

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“…However, Fonseca et al [24] recently published a study about the cooperative effect of Au and Cu on ceria-modified catalysts for the PROX reaction where the opposite behaviour was exhibited. They observed that the reducibility of CeO 2 in the Au/CeO 2 and CuO x /CeO 2 was superior to that of the Au-CuO x /CeO 2 . This was explained in terms of the modification of the initial reduction state of gold and copper species in the bimetallic system compared with the monometallic ones.…”

Section: Physico-chemical Characterizationmentioning

confidence: 99%

“…This is important for the development of any catalysts for the PROX reaction because this is a cleaning process of the H 2 produced by reforming of organic molecules that also produces CO 2 and H 2 O. Therefore their presence is hardly avoidable under real operating conditions.…”

Section: Catalytic Performance and Kinetic Modelmentioning

confidence: 99%

“…Although hydrogen is not a primary energy source, it seems a suitable fuel in the long-term since its clean combustion prevents the emission of carbon-based pollutants and/or greenhouse gases [2]. Hydrogen production by the reforming of hydrocarbons either from fossil or renewable origin seems to be the best option in the short-term; however, the produced reformate is not pure H 2 but a mixture of different compounds, being H 2 , H 2 O and carbon oxides (CO and CO 2 ) the main ones [3].…”

Section: Introductionmentioning

confidence: 99%

“…ΔH° = -283 kJ/mol (Eq. 1) 2 O ΔH° = -165.5 kJ/mol (Eq. 5) Among these processes, the H 2 oxidation and the WGS and its reverse reaction (R-WGS) are the most influential ones over the selectivity due to the low temperatures at which the PROX reaction is usually carried out (< 300 °C) [10].…”

Section: Introductionmentioning

confidence: 99%

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Gold supported on CuOx/CeO2 catalyst for the purification of hydrogen by the CO preferential oxidation reaction (PROX)

Laguna

Hernández

Arzamendi

et al. 2014

Fuel

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Hydrogen produced from the conversion of hydrocarbons or alcohols contains variable amounts of CO that should be removed for some applications such as feeding lowtemperature polymer electrolyte membrane fuel cells (PEMFCs). The CO preferential oxidation reaction (PROX) is particularly well-suited for hydrogen purification for portable and on-board applications. In this work, the synthesis and characterization by XRF, BET, XRD, Raman spectroscopy and H 2 -TPR of a gold catalyst supported on a copper-cerium mixed oxide (AuCeCu) for the PROX reaction are presented. The comparison of this catalyst with the copper-cerium mixed oxide (CeCu) revealed that the experimental procedure used for the deposition of gold gave rise to the loss of reducible material by copper lixiviation. However, the AuCeCu solid was more active for CO oxidation at low temperature. A kinetic study has been carried over the AuCeCu catalyst for the PROX reaction and compared with that of the CeCu catalyst. The main difference between the models affected the contribution of the CO adsorption term. This fact may be related to the surface electronic activity produced by the interaction of the cationic species in the AuCeCu solid, able to create more active sites for the CO adsorption and activation in the presence of gold.

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Section: Physico-chemical Characterizationmentioning

confidence: 99%

Section: Catalytic Performance and Kinetic Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Gold supported on CuOx/CeO2 catalyst for the purification of hydrogen by the CO preferential oxidation reaction (PROX)

Laguna

Hernández

Arzamendi

et al. 2014

Fuel

Self Cite

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“…Moreover, limited source and high price of petroleum as well as the global warming have led to investigations for renewable fuels. Even though the taken precautions with Kyoto to the United Nations, during the period 1990-2004, as a result of the demand of transport sector, global CO 2 emission level increased by 27% [2,3]. Renewable Energy Directive was declared by the European Parliament to create legal frameworks [2].…”

Section: Introductionmentioning

confidence: 99%

An Experimental Investigation of Ethanol-Diesel Blends on Performance and Exhaust Emissions of Diesel Engines

Sandalcı

Karagöz

Orak

et al. 2014

Advances in Mechanical Engineering

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Ethanol is a promising alternative fuel, due to its renewable biobased origin. Also, it has lower carbon content than diesel fuel and it is oxygenated. For this reason, ethanol is providing remarkable potential to reduce particulate emulsions in compression-ignition engines. In this study, performance of ethanol-diesel blends has been investigated experimentally. Tested fuels were mineral diesel fuel (E0D100), 15% (v/v) ethanol/diesel fuel blend (E15D85), and 30% (v/v) ethanol/diesel fuel blend (E30D70). Firstly, the solubility of ethanol and diesel was experienced. Engine tests were carried out to reveal the performance and emissions of the engine fuelled with the blends. Full load operating conditions at various engine speeds were investigated. Engine brake torque, brake power, brake specific fuel consumption, brake thermal efficiency, exhaust gas temperature, and finally exhaust emissions were measured. Performance of the tested engine decreased substantially while improvement on smoke and gaseous emissions makes ethanol blend favorable.

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Influence of Alternative Fuels on Exhaust Emissions of IC Engine: A Review

Kumar

Arora

Maji

2021

Studies in Infrastructure and Control

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Conversion of a commercial spark ignition engine to run on hydrogen: Performance comparison using hydrogen and gasoline

Cited by 109 publications

References 25 publications

Gold supported on CuOx/CeO2 catalyst for the purification of hydrogen by the CO preferential oxidation reaction (PROX)

Gold supported on CuOx/CeO2 catalyst for the purification of hydrogen by the CO preferential oxidation reaction (PROX)

An Experimental Investigation of Ethanol-Diesel Blends on Performance and Exhaust Emissions of Diesel Engines

Influence of Alternative Fuels on Exhaust Emissions of IC Engine: A Review

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