Autothermal reforming of n-octane on Ru-based catalysts

Qi, Aidu; Wang, Shudong; Fu, Guizhi; Wu, Diyong

doi:10.1016/j.apcata.2005.07.009

Cited by 61 publications

(27 citation statements)

References 33 publications

(47 reference statements)

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“…10,11 For example, Rh and Ru based catalysts were previously reported to exhibit activities towards the ATR process of sulfur-containing fuels. 12 Moreover, we previously reported Rh-based catalysts supported onto various metal oxides including Al 2 O 3 , ZrO 2 , CeO 2 , and CeO 2 /-Al 2 O 3 for ATR reactions using iso-octane and commercial gasoline, and among them, Rh/CeO 2 -Al 2 O 3 (0.5 wt % Rh, 20 wt % CeO 2 ) particularly showed excellent activity and stability towards the reforming of commercial gasoline. 13 Likewise, bimetallic catalysts with noble metals have also been studied for a number of reforming reactions.…”

Section: Introductionmentioning

confidence: 98%

“…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%

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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: 98%

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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“…The high flow velocities and rapid temperature changes could lead to the loss of bonding between the washcoat and monolith walls. Research teams in Argonne National Laboratory [73], Royal Military College of Canada [21,125,126], Forschungszentrum Juelich GmbH in Germany [86,114,127], and KTH-RIT in Sweden [19] have done a significant amount of research of ATR in monolithic reactors. For diesel ATR in monolithic reactor, Shigarov et al [128] tested several catalyst composites and the optimum operating conditions were specified as O2/C ratio of 0.5-0.6, S/C ratio of 1.5-1.7 and inlet mixture temperature of 300-400 °C.…”

Section: Monolithic Reformermentioning

confidence: 99%

“…Qi et al [126] reported the optimal S/C and O2/C for ATR were in the range of 1.5-2.0 and 0.35-0.5, respectively. By keeping other parameters as constants (flow rate of ndodecane = 6 ml/min, steam was pre-heated to 210 °C, air was pre-heated to 165 °C, rc-dodecane was pre-heated to 180 °C, and the operation temperature of the reformer catalytic zone was kept at 700 °C), nine different S/C and O2/C combinations were tested in the reformer.…”

Section: Effects Ofs/c (Steam/carbon) and O/c (Oxygen Carbon) Ratiosmentioning

confidence: 99%

Planar Solid-Oxide Fuel Cell System Demonstration at UT SimCenter

Kapadia¹,

Newman²,

Anderson³

2015

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The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any othe' aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any otheprovision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. REPORT DATE (DD-MM-YYYY)12-09-2015 5a. CONTRACT NUMBER. Enter all contract numbers as they appear in the report, e.g. F33315-86-C-5169. REPORT TYPE5b. GRANT NUMBER. Enter all grant numbers as they appear in the report, e.g. AFOSR-82-1234. 5c. PROGRAM ELEMENT NUMBER.Enter all program element numbers as they appear in the report, e.g. 61101 A.5e. TASK NUMBER. Enter all task numbers as they appear in the report, e.g. 05; RF0330201; T4112.5f. WORK UNIT NUMBER. Enter all work unit numbers as they appear in the report, e.g. 001; AFAPL30480105. AUTHOR(S). Enter name(s) of person(s)responsible for writing the report, performing the research, or credited with the content of the report. The form of entry is the last name, first name, middle initial, and additional qualifiers separated by commas, e.g. Smith, Richard, J, Jr. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES).Self-explanatory. PERFORMING ORGANIZATION REPORT NUMBER.Enter all unique alphanumeric report numbers assigned by the performing organization, e.g. BRL-1234; AFWL-TR-85-4017-Vol-21-PT-2. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES).Enter the name and address of the organization(s) financially responsible for and monitoring the work. SPONSOR/MONITOR'S ACRONYM(S).Enter, if available, e.g. BRL, ARDEC, NADC. SPONSOR/MONITOR'S REPORT NUMBER(S).Enter report number as assigned by the sponsoring/ monitoring agency, if available, e.g. BRL-TR-829; -215. DISTRIBUTION/AVAILABILITY STATEMENT. AbstractA three-dimensional, unstructured, multi-species reacting flow solver is developed to model solid oxide fuel cells (SOFCs) as well as catalytic reactors. The finite volume based solver utilizes density-based method to solve the coupled system of governing equations. Numerical results for both SOFC and reactor obtained using the inhouse code are compared with the experimental results from the literature for validation purposes. Effects of mass flow rates of incoming species on performance of SOFC as well as catalytic reactor are investigated. Two different methods namely direct differentiation and discrete adjoint method are implemented in the code to compute sensitiv...

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“…En base a los valores de las constantes correspondientes se puede calcular la influencia de las distintas variables de operación (temperatura, presión y relación H 2 O/carbono) sobre la composición en el equilibrio [48]. De estos resultados podemos indicar que la producción de hidrógeno estará favorecida a altas temperaturas de reacción, bajas presiones y altas relaciones agua/carbono en la mezcla alimentada.…”

Section: 6-reformado De Hidrocarburos Con Vapor De Aguaunclassified

Obtención de hidrógeno mediante reformado catalítico de nafta con vapor de agua

Sánchez¹

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Como consecuencia del cambio climático que tiene lugar en el planeta y como se deduce de numerosos estudios científicos, se ha puesto en evidencia que el calentamiento global va a aumentar progresivamente dentro del próximo siglo (figura 1.1.1) [1]. Por ello, se ha aconsejado a la comunidad mundial considerar la atenuación de este efecto reduciendo las emisiones a la atmósfera de gases que provocan el efecto invernadero (figura 1.1.2), en particular CO 2 . El problema de la contaminación medioambiental está ocasionado, principalmente, por la emisión de diversos gases procedentes de combustión tales como CO x , NO x y SO x , que además del efecto invernadero, dan lugar a los problemas de la lluvia ácida y de la disminución de la capa de ozono en la atmósfera [2]. El enorme impacto que ocasiona el uso de los combustibles fósiles como fuente de energía sobre el planeta, unido al incremento del coste del petróleo y la dependencia energética del mismo, son factores que aceleran el interés en modificar y diversificar las Temperatura global en la superficie (1860-2000) Cambio de la temperatura (ºC) Temperatura global en la superficie Cambio de la temperatura (ºC) [4]. Esta alarma ha empujado a los gobiernos de los países industrializados a revisar sus políticas energéticas y sus estrategias con el doble propósito de mejorar la seguridad en el suministro y reducir las emisiones de los gases responsables del efecto invernadero. Por tanto, ya sea desde un punto de vista económico como desde un punto de vista político, la estrategia, a medio y largo plazo, de diversificación y acomodación a los nuevos requerimientos sociales, empuja a la profundización y desarrollo de nuevas fuentes de energía [5][6][7]. Figura 1.1.2-Efecto de los gases responsables del efecto invernadero [2].En el estudio de los problemas derivados del uso del petróleo como fuente de energía, y también como fuente de contaminación, muchos grupos científicos están investigando los medios para mejorar la producción de energía con un nivel mínimo de efluentes tóxicos [8]. En los últimos años, han aparecido un gran número de publicaciones que se ocupa de las diversas opciones existentes como fuentes de energía más limpias, sus ventajas, desventajas y aspectos económicos. Entre las distintas alternativas propuestas existe un nexo común: a largo plazo, el hidrógeno parece ser el combustible más conveniente ya que tiene la ventaja de que su combustión es limpia, permitiendo la generación de cualquier fuente imaginable de energía y con posibilidad también de almacenamiento [9]. El hidrógeno es un portador de energía limpio. Durante INTRODUCCIÓN Antecedentes. Necesidades de fuentes de energía alternativas______________________________________________________________________ 18 su combustión los únicos productos son calor y agua. Cuando se utiliza como combustible en las pilas de combustible, permite alcanzar eficiencias energéticas más elevadas que las obtenidas con motores de combustión interna. Las pilas de combustible son dispositivos electroquímicos que pres...

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Autothermal reforming of n-octane on Ru-based catalysts

Cited by 61 publications

References 33 publications

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

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

Planar Solid-Oxide Fuel Cell System Demonstration at UT SimCenter

Obtención de hidrógeno mediante reformado catalítico de nafta con vapor de agua

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