Effects of ethylene on carbon formation in diesel autothermal reforming

Yoon, Seok Ho; Kang, Inyong; Bae, Joongmyeon

doi:10.1016/j.ijhydene.2008.05.025

Cited by 106 publications

(57 citation statements)

References 21 publications

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“…On the other hand, the higher amount Fig. 1 this sample, since it is well known that ethylene is an efficient coke precursor [17,18]. It merits to be highlighted the low amount of methane obtained over the catalytic monoliths 1Pt/ CeLa, 1Rh/CeLa, 1Ru/CeLa and 10Ni/CeLa as well as the nearly absence of C2eC3 hydrocarbons.…”

Section: Resultsmentioning

confidence: 75%

Catalytic steam reforming of olive mill wastewater for hydrogen production

Casanovas

Galvis

Llorca

2015

International Journal of Hydrogen Energy

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Olive mill wastewater Catalytic honeycombsHydrogen production a b s t r a c t Catalytic honeycombs functionalized with lanthanum-stabilized ceria as catalytic support and impregnated with different metals (Rh, Ru, Pt, Pd and Ni) were prepared and tested for hydrogen production through the steam reforming of distillated, three-phase olive mill wastewater (OMW). Tests were carried out at atmospheric pressure, different temperatures (873e1023 K), and space velocities (4500e16,000 h -1 ) over catalytic honeycombs loaded with ca. 3 mg cm -2 of catalyst. The catalytic performance was evaluated in terms of hydrogen production, selectivity of gaseous products and stability for 24 h. The best results were obtained over Pt-and Rh-based catalytic systems. Chemical oxygen demand values were determined to quantify the total organic content of OMW and post-reaction condensate to quantify the extension of the reaction. Total organic contents were found to be 5.4 mg L -1 and 0.2e0.5 mg L -1 in OMW distillate and post-reaction condensate, respectively, which leads to a 90e96 % of organic content removal during the steam reforming process. Up to 40 STP mL of pure hydrogen per mL of distillated olive mill wastewater were produced over Pt/CeLa at 973 K and 16,000 h -1 . X-ray photoelectron spectroscopy analyses revealed carbon and calcium deposition during catalytic reaction.

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Section: Resultsmentioning

confidence: 75%

Catalytic steam reforming of olive mill wastewater for hydrogen production

Casanovas

Galvis

Llorca

2015

International Journal of Hydrogen Energy

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“…Souza et al [107] reported that in the ATR of methane over Pt/Zr02 catalyst, the fuel conversion decreased from 80% to 65% after 30 h of operation in the existence of coke formation. Yoon et al [108] reported that in the ATR of synthetic diesel, due to coke formation the fuel conversion decreased from 100% to 90% and the reformer efficiency decreased from 65% to 45% after 40 h of operation. High temperature is required to minimize coke formation.…”

Section: Autothermal Reforming Of N-dodecane (Surrogate Of Jp-8) and mentioning

confidence: 99%

“…Ethylene can be decomposed into carbon in the absence of oxygen and water. In order to investigate the mechanism of carbon formation caused by ethylene pyrolysis, Yoon et al [108] designed a diesel ATR processing system to study the correlation between carbon formation and 0 2 /C and H 2 0/C ratios under the reforming conditions of SR, POX, and ATR. A blank reactor and a catalystloaded reactor were used to distinguish the carbon formation performance between homogeneous (in a blank reactor) and heterogeneous (in a catalyst-loaded reactor) reactions.…”

Section: Autothermal Reforming Of N-dodecane (Surrogate Of Jp-8) and mentioning

confidence: 99%

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Planar Solid-Oxide Fuel Cell System Demonstration at UT SimCenter

Kapadia¹,

Newman²,

Anderson³

2015

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“…The initial OCV, 0.93 V, was close to the thermodynamic value of 0.94 V. The existence of methane and ethylene indicates that the internal steam reforming has not reached equilibrium. Especially, ethylene is well known as a precursor of carbon deposition (Yoon et al, 2008(Yoon et al, , 2009). Table 9.…”

Section: Wwwintechopencommentioning

confidence: 99%