Isothermal kinetic measurements for hydrogen production from hydrocarbon fuels using a novel kinetic reactor concept

Springmann, Steffen; Friedrich, G.; Himmen, Michael; Sommer, M.; Eigenberger, Gerhart

doi:10.1016/s0926-860x(02)00257-0

Cited by 58 publications

(27 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…During POX reforming of iso-octane and toluene, the heat of reaction and the amount of carbon formed were calculated by the Gibb's free energy minimization method [57] were reported. Figure 1 shows the effect of O/C ratio on the heat of reaction in POX reforming reaction of isooctane at 700°C and feed molar ratios H 2 O/C = 3 and 1.…”

Section: Catalytic Reforming Of Gasolinementioning

confidence: 99%

Hydrogen Production by Catalytic Reforming of Liquid Hydrocarbons

Moon

2010

Catal Surv Asia

View full text Add to dashboard Cite

In this review, we are reporting the catalytic reforming of liquid hydrocarbon fuels carried out in our research group, covering the catalytic reforming of isooctane and toluene as surrogate of gasoline, gasoline fuel processor system and steam reforming of n-hexadecane and decahydronaphthalene, main constituents of diesel. The commercial ICI reforming catalyst is prone to be poisoned by sulfur contained in iso-octane. We investigated various supported transition metal formulations and developed Ni/ Fe/MgO/Al 2 O 3 (KIST-5) catalyst with prolonged catalytic stability ([760 h), higher activity and sulfur tolerance ability over commercial ICI and HT catalysts for ATR reaction of iso-octane. We found that the concentration of CO can be reduced to \1,800 ppm by the gasoline fuel processor system charged with KIST-5 reforming catalyst, commercial HTS catalyst and KIST Pt-Ni/CeO 2 LTS catalyst. The addition of Rh metal to spc-Ni/MgAl catalyst as promoter was found to be very effective in inhibiting the deactivation of spc-Ni/MgAl catalyst by sintering of reduced Ni metal at high temperature during steam reforming of n-hexadecane. A 0.3 wt% Rh loading on spcNi/MgAl catalyst was optimized to have the best performance for steam reforming of n-hexadecane among the prepared catalysts. The addition of Rh to spc-Ni/MgAl catalyst also restricted the deactivation of the catalyst due to carbon formation at high reaction temperature. In view point of prolonged stability and higher activity, these developed reforming catalysts have a good scope in the reforming process of gasoline and diesel for hydrogen station and fuel processor system applications.

show abstract

Section: Catalytic Reforming Of Gasolinementioning

confidence: 99%

Hydrogen Production by Catalytic Reforming of Liquid Hydrocarbons

Moon

2010

Catal Surv Asia

View full text Add to dashboard Cite

show abstract

“…Kinetic data of the reforming and shift reaction for a proprietary noble metal catalysts supplied by OMG [4] was derived from own experimental results. The kinetic measurements were performed in a novel flat-bed reactor under isothermal conditions [5,6].…”

Section: Energy Balances For Gas Phasesmentioning

confidence: 99%

Stady‐state and Dynamical Simulation of an Autothermal Gasoline Reformer

Springmann¹,

Bohnet²,

Sommer

et al. 2003

Chem Eng & Technol

Self Cite

View full text Add to dashboard Cite

Detailed numerical simulation is an important tool for the analysis, development and optimization of new reactor systems. In this contribution results of steady-state and dynamic simulations of a hydrogen production system for mobile applications based on gasoline are presented. The system consists of an autothermal reformer, a high temperature shift reactor and a countercurrent heat exchanger for heat integration. The simulations are based on 1-D, multiphase, dynamic models, which are solved with the simulation tool PDEX-Pack. Firstly steady-state and dynamic simulations of the autothermal reformer alone are presented. Concentration and temperature profiles in the reformer under different operation conditions are discussed and possibilities to improve the performance are assessed. Dynamic simulations of load change and cold start show the fast dynamic response of the reformer due to its low thermal mass. Simulations of the coupled system underline the impact of the heat exchanger design for the system performance, especially under dynamic conditions. Finally dynamic simulations of a possible cold start strategy for the system are discussed.

show abstract

“…The iso-octane closely represents gasoline and has been used in several studies as a model hydrocarbon for reforming reactions [2][3][4]. The catalyst assisted conversion of iso-octane to produce hydrogen is possible via, partial oxidation, steam reforming or CO 2 reforming [5][6][7]. The type of reaction depends on the equivalence ratio and steam to carbon ratio used in the reaction.…”

Section: Introductionmentioning

confidence: 99%

Production of hydrogen-rich gas via reforming of iso-octane over Ni?Mn and Rh?Ce bimetallic catalysts using spray pulsed reactor

Biniwale

Ichikawa

2005

Catal Lett

View full text Add to dashboard Cite

The conversion of hydrocarbon fuels such as gasoline and diesel is a potential source for hydrogen production towards various fuel cell systems. A novel spray pulsed mode reactor to create alternate wet and dry conditions on the catalyst surface has been used in this study to enhance the rates of hydrogen production compared with the solid-gas phase reaction due to the improvement of the catalyst reactant contact. The production of hydrogen-rich gas by reforming of iso-octane (2,2,4-trimethylepentane) in the presence of steam and air has been studied at 600 and 700°C over Ni-Mn and Rh-Ce bimetallic catalysts supported on alumina mesh. The feed rate of iso-octane was varied from 0.553 to 5.53 m mol min )1 by controlling pulse injection in terms of the width and frequency of injection of iso-octane. Based on the product analysis optimized condition for higher hydrogen production and high H 2 /CO ratio has been deduced.

show abstract

Isothermal kinetic measurements for hydrogen production from hydrocarbon fuels using a novel kinetic reactor concept

Cited by 58 publications

References 11 publications

Hydrogen Production by Catalytic Reforming of Liquid Hydrocarbons

Hydrogen Production by Catalytic Reforming of Liquid Hydrocarbons

Stady‐state and Dynamical Simulation of an Autothermal Gasoline Reformer

Production of hydrogen-rich gas via reforming of iso-octane over Ni?Mn and Rh?Ce bimetallic catalysts using spray pulsed reactor

Contact Info

Product

Resources

About