Dry Reforming of Methane Using a Solar-Thermal Aerosol Flow Reactor

Dahl, Jaimee K.; Weimer, Alan W.; Lewandowski, A.; Bingham, Carl; Bruetsch, Fabian; Steinfeld, Aldo

doi:10.1021/ie030307h

Cited by 103 publications

(53 citation statements)

References 17 publications

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“…These systems typically require very high temperatures. One such study was done by Dahl et al using a fluid-wall aerosol flow reactor [46]. The fluid-wall aerosol flow reactor was composed of three concentric tubes ( Figure 5).…”

Section: Dry Reforming With No Catalystmentioning

confidence: 99%

A review of solar methane reforming systems

Sheu

Mokheimer

Ghoniem

2015

International Journal of Hydrogen Energy

120

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Because of the increasing demand for energy and the associated rise in greenhouse gas emissions, there is much interest in the use of renewable sources such as solar energy in electricity and fuels generation. One problem with solar energy, however, is that it is difficult to economically convert the radiation into usable energy at the desired locations and times, both daily and seasonally. One method to overcome this space-time intermittency is through the production of chemical fuels. In particular, solar reforming is a promising method for producing chemical fuels by reforming and/or water/carbon dioxide splitting. In this paper, a review of solar reforming systems is presented, as well as a comparison between these systems and a discussion on areas for potential innovation including chemical looping and membrane reactors. Moreover, a brief overview of catalysis in the context of reforming is presented.

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Section: Dry Reforming With No Catalystmentioning

confidence: 99%

A review of solar methane reforming systems

Sheu

Mokheimer

Ghoniem

2015

International Journal of Hydrogen Energy

120

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“…There has been much work on the solar reformer system, but less so on the hybrid system analyses. Moreover, while there have been many studies on steam/dry reformers (either system level or specific reformer component studies) [11,12,13,14,15,16,3,17], there has not been as much work done on redox reformers. For specifically redox type reformers, there has been an experimental study on a solar reformer combines Zn production methane reforming [18].…”

Section: + H 2 O(v) → Mo + H 2 (Exothermic or Endothermic)mentioning

confidence: 99%

Redox reforming based, integrated solar-natural gas plants: Reforming and thermodynamic cycle efficiency

Sheu

Ghoniem

2014

International Journal of Hydrogen Energy

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As demand for energy continues to rise, the concern over the increase in emissions grows, prompting much interest in using renewable energy resources such as solar energy. However, there are numerous issues with using solar energy including intermittancy and the need for storage. A potential solution is the concept of hybrid solar-fossil fuel power generation. Previous work has shown that utilizing solar reforming in conventional power cycles has higher performance compared to other integration methods. Most previous studies have focused on steam or dry reforming and on specific component analysis rather than a systems level analysis. In this article, a system analysis of a hybrid cycle utilizing redox reforming is presented.Important cycle design and operation parameters such as the oxidation temperature and reformer operating pressure are identified and their effect on both the reformer and cycle performance is discussed. Simulation results show that increasing oxidation temperature can improve reformer and cycle efficiency. Also shown is that increasing the amount of reforming water leads to a higher reformer efficiency, but can be detrimental to cycle efficiency depending on how the reforming water is utilized.

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“…[14,19,20] Thel atter application is similar to chemical looping with metal oxide redox materials as oxygenc arriers. [21] Research for solar-driven DRM has focused on non-catalytic DRM, reaching up to 65 %C O 2 conversion at 1700 8C, [22] and DRM with fixed beds of CeO 2 -Fe 2 O 3 reaching 30 %C O 2 conversion at 600 8C; H 2 is,h owever, consumed in the formation of H 2 O. [17,23] In this study,w ed evelopa nd demonstratet he feasibility of DRM using an isothermal redox membrane reactor that combines the benefits of continuousi sothermal solar fuel productionw ith those of thermochemical DRM.…”

Section: Introductionmentioning

confidence: 99%

Carbon Dioxide Reforming of Methane using an Isothermal Redox Membrane Reactor

2015

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The continuous production of carbon monoxide (CO) and hydrogen (H 2 ) by dry reforming of methane (CH 4 ) is demonstrated isothermally using a ceramic redox membrane in absence of additional catalysts. The reactor technology realizes the continuous splitting of CO 2 to CO on the inner side of a tubular membrane and the partial oxidation of CH 4 with the lattice oxygen to form syngas on the outer side. La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3‐ δ (LSCF) membranes evaluated at 840–1030 °C yielded up to 1.27 μmol CO s −1 from CO 2 , 3.77 μmol H₂ g −1 s −1 from CH 4 , and CO from CH 4 at approximately the same rate as CO from CO 2 . We compute the free energy of the oxygen vacancy formation for La 0.5 Sr 0.5 B 0.5 B′ 0.5 O 3− δ (B, B′=Mn, Fe, Co, Cu) using electronic structure theory to understand how CO 2 reduction limits dry reforming of methane using LSCF and to show how the CO 2 conversion can be increased by using advanced redox materials such as La 0.5 Sr 0.5 MnO 3− δ and La 0.5 Sr 0.5 Mn 0.5 Co 0.5 O 3− δ .

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Dry Reforming of Methane Using a Solar-Thermal Aerosol Flow Reactor

Cited by 103 publications

References 17 publications

A review of solar methane reforming systems

A review of solar methane reforming systems

Redox reforming based, integrated solar-natural gas plants: Reforming and thermodynamic cycle efficiency

Carbon Dioxide Reforming of Methane using an Isothermal Redox Membrane Reactor

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