Quantitative analysis of sub-ppm traces of hydrocarbons in the product gas from diesel reforming

Meißner, J.; Pasel, Joachim; Peters, Ralf; Samsun, Remzi Can; Thimm, Franziska; Stolten, Detlef

doi:10.1016/j.ijhydene.2018.12.175

Cited by 8 publications

(7 citation statements)

References 41 publications

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“…Obviously, the decrease of the hydrogen yield went along with an increase of carbon monoxide, indicating that the WGSR was constrained at higher reaction temperatures. Although ceria-supported rhodium and platinum was an acceptable catalyst for WGSR, its optimal activity was restricted to a narrow range, and at high temperature by the superiority of the more thermodynamically favoured reverse-shift reaction [8,42]. In the diesel fuel reforming as shown in Figure 7, the presence of the endothermic dry reforming reaction that might had also taken place was obvious from the experimental results.…”

Section: Experimental Results Of H 2 and Co Productionmentioning

confidence: 96%

“…As reported in the previous literature, the methods of fuel reforming mainly include steam reforming (SR), autothermal reforming (ATR), partial oxidation reforming (POX) and water gas shift reaction (WGSR) [4]. The on-board hydrogen production devices must satisfy many requirements such as efficiency, weight, compactness, cost and simple plant displacement [5][6][7][8][9][10][11][12]. In view of the compactness and modification cost of the fuel supply system, the on-board diesel reforming devices equipped on a vehicles are considered as a feasible technique at present.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation and Experimental Investigation of Diesel Fuel Reforming over a Pt/CeO2-Al2O3 Catalyst

et al. 2019

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In order to benefit from a realistic hydrogen production device equipped on a vehicle, issues with the effects of the process parameters on H2 and CO yield need to be resolved. In this study, a reduced mechanism for n-heptane (as a surrogate diesel) reforming over a Pt/CeO2-Al2O3 catalyst is adopted to investigate the effects of the process parameters on H2 and CO yield, and the preferred process parameters are concluded. In addition, the comparison of reforming bench tests of diesel fuel and n-heptane under typical diesel engine operating conditions is conducted. The n-heptane reforming simulation results show that the maximum H2 and CO yield moves toward unity with the decreased GHSV and increased reaction temperature, and the GHSV of 10,000 1/h, O2/C ratio of 0.6 and reaction temperature of 500 °C is preferable. The contrast experiments reveal that the change trend of H2 and CO yield displays consistence, although the difference of the average H2 and CO yield results is obvious. The characteristics of n-heptane reforming can represent H2 and CO yield features of diesel fuel reforming at typical reaction temperatures in a way.

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Section: Experimental Results Of H 2 and Co Productionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Experimental Investigation of Diesel Fuel Reforming over a Pt/CeO2-Al2O3 Catalyst

et al. 2019

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show abstract

“…The advanced analysis of the composition of the dry reformate of ATR 14 by means of gaschromatography and mass spectrometry corresponding to the method of Meißner et al [70] showed that apart from the above shown main products of H2, CO, CO2 and methane, as well ethene, ethane, propene, propane, iso-butene, 1-butene, 1,3-butadiene, n-butane, 2-butene, 1pentene, 1-hexene, benzene, cyclohexane and toluene, which are formed in undesired side reactions and at different amounts depending on the reaction conditions. These components jointly made up the molar fraction of unconverted carbon 𝑦 in the dry reformate being calculated according to equation ( 6):…”

Section: Resultsmentioning

confidence: 99%

“…In addition, Meißner et al [70] recently developed an improved methodology for the analysis of very low amounts (in the sub-ppm range) of residual hydrocarbons in the product gas phase of autothermal reforming. This is based on a coupling of gas-chromatography and mass spectrometry.…”

Section: Methodsmentioning

confidence: 99%