Autothermal reforming of gasoline on Rh-based monolithic catalysts

Qi, Aidu; Wang, Shudong; Ni, Chengsheng; Wu, Diyong

doi:10.1016/j.ijhydene.2006.06.072

Cited by 93 publications

(32 citation statements)

References 34 publications

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“…The desired catalyst (0.135-0.165 g) was pre-treated using a 30% H 2 /N 2 gas with a heating rate of 5 o C min were then monitored as a function of time. 12,17,18 The commercial gasoline contains sulfur (< 10 ppm), Pb (0.013 g/L), aromatic compounds (21 vol %), and olefin (19 vol %). A syringe pump (Havard Apparatus, Inc) was employed to supply gasoline, and a mass flow controller (MFC, MKP-TSC100) was utilized to transport N 2 , H 2 , and air.…”

Section: Introductionmentioning

confidence: 99%

Rh-Ni and Rh-Co Catalysts for Autothermal Reforming of Gasoline

Jung

Lee

Kim

et al. 2014

Bulletin of the Korean Chemical Society

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Rh doped Ni and Co catalysts, Rh-M/CeO2(20 wt %)-Al2O3 (0.2 wt % of Rh; M = Ni or Co, 20 wt %) were synthesized to produce hydrogen via autothermal reforming (ATR) of commercial gasoline at 700 o C under the conditions of a S/C ratio of 2.0, an O/C ratio of 0.84, and a gas hourly space velocity (GHSV) of 20,000 h 1 . The Rh-Ni/CeO2(20 wt %)-Al2O3 catalyst (1) exhibited excellent activities, with H2 and (H2+CO) yields of 2.04 and 2.58 mol/mol C, respectively. In addition, this catalyst proved to be highly stable over 100 h without catalyst deactivation, as evidenced by energy dispersive spectroscopy (EDX) and elemental analyses. Compared to 1, Rh-Co/CeO2(20 wt %)-Al2O3 catalyst (2) exhibited relatively low stability, and its activity decreased after 57 h. In line with this observation, elemental analyses confirmed that nearly no carbon species were formed at 1 while carbon deposits (10 wt %) were found at 2 following the reaction, which suggests that carbon coking is the main process for catalyst deactivation.

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Section: Introductionmentioning

confidence: 99%

Rh-Ni and Rh-Co Catalysts for Autothermal Reforming of Gasoline

Jung

Lee

Kim

et al. 2014

Bulletin of the Korean Chemical Society

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“…A few authors have studied sulfur tolerance of noble metal catalysts exposed to diesel or gasoline model compounds containing thiophenes under autothermal reforming conditions and the results seem to correspond well with those obtained with low-sulfur diesel [18][19][20]. In these studies, conversion has been affected by adding sulfur compounds in the feed but the effect has been relatively small and stepwise rather than constant degradation rate when the sulfur amount has been low (<20 ppm).…”

Section: Introductionmentioning

confidence: 63%

Experimental Study of an SOFC Stack Operated With Autothermally Reformed Diesel Fuel

et al. 2012

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A 500 W SOFC stack provided by Topsoe Fuel Cells A/S was run with reformed diesel fuel for 1,200 h. Diesel fuel used was Swedish Environmental Class 1 containing <10 ppm of sulfur. The fuel was reformed with an autothermal reformer (ATR). The reformer consisted of a mixing chamber and a reactor chamber containing a noble metal catalyst provided by SüdChemie. The reformer used the diesel fuel without any pre‐treatment such as sulfur adsorbent. The reformer unit was able to achieve high conversion of reactants with only ppm levels of higher hydrocarbons at the reformer outlet. Particulate emissions of the reformer were measured to be 30 μg m–3, a very low value even below daily exposure limits in ambient air set by the European Comission directives. The stack was first run with 3% humidified H2 + N2 fuel to obtain baseline performance and then switched to reformate. Diesel reformate was found not to induce significantly more long‐term degradation on the stack compared to hydrogen case. However, an initial degradation of about 20 mV cell–1 was observed during the first 150 h on diesel fuel reformate. This could be an indication of a poisoning mechanism taking place, but needs further research to be verified.

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“…또한, 수증기 개질로 생성되는 수소는 무공해 청 정 연료로서 수소자동차 및 연료전지 등에 적용할 수 있다. 수소생산 방법으로 부분 산화법, 자연 개질 법 및 수증기 개질법 등이 많이 사용 되며, 특히 수증 기 개질법은 버너로 주입되는 고온의 열을 이용한 흡열반응에 의해 수소를 생성하는 방법으로서 다른 개질방법에 비해 수소 생산량이 많고 경제성이 우수 하다 [6][7][8][9].…”

Section: 서 론unclassified

Characteristics of Temperature in Reformer Tube and Chemical Reaction for Steam Methane Ratio

Han¹,

Kim²,

Lee³

2016

Journal of the Korean Institute of Gas

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-The aim of numerical study is the investigation of the solid and fluid temperatures in a reformer tube and chemical reaction characteristics of different steam-carbon ratio. We considered conjugate heat transfer contain radiation, convection and conductive heat transfers. This is because steam reforming reaction of hydrocarbon occurred high temperature conditions up to 800 K-1000 K by using commercial computational fluid dynamics (CFD) code (Fluent ver. 13.0). For numerical simulation, the Reynolds-Averaged Navier-Stokes, momentum and energy equation were employed. In addition, inside of reformer tube is assumed as the porous medium to consider the Nichrome-based catalyst. To analysis characteristics of tube temperature in chemical reaction, we changed steam-methane ratio(SCR) from 1 to 6. As increased SCR, the higher tube temperature and methane conversion were observed. It was obtained that the highest hydrogen production held in SCR of 5.

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Autothermal reforming of gasoline on Rh-based monolithic catalysts

Cited by 93 publications

References 34 publications

Rh-Ni and Rh-Co Catalysts for Autothermal Reforming of Gasoline

Rh-Ni and Rh-Co Catalysts for Autothermal Reforming of Gasoline

Experimental Study of an SOFC Stack Operated With Autothermally Reformed Diesel Fuel

Characteristics of Temperature in Reformer Tube and Chemical Reaction for Steam Methane Ratio

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