A solar chemical reactor for co-production of zinc and synthesis gas

Steinfeld, Aldo; Brack, Max; Meier, Anton; Weidenkaff, Anke; Wuillemin, Daniel

doi:10.1016/s0360-5442(98)00026-7

Cited by 186 publications

(91 citation statements)

References 15 publications

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“…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]. There has also been an experimental study on a fixed bed redox reformer investigating using redox reforming with a number of different metal/metal oxide pairs [19].…”

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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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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“…[9][10][11][12] The goal from both activities is to develop science and technology for reducing society's demand for fossil. The work is focused on the development of solar chemical reactors that operate at temperatures from 1200 -2200 K. Physical chemistry questions with regard to the mechanisms and rates of decomposition and re-oxidation reactions are being investigated [13,14].…”

Section: Fuel Production and Processingmentioning

confidence: 99%

The role of chemical processes in the transition to sustainable energy systems

2003

Fuel and Energy Abstracts

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Chemical science and engineering play a central role in improving the eco-efficiency of energy services, be it by optimizing fossil fuel utilization from the source to the sinks, be it by exploring new ways of replacing fossil fuels with renewable ones. Catalytic fuel processing is required for providing clean and easy to convert inputs from contaminated and/or high molecular weight primary resources into efficient energy conversion systems such as advanced combustion engines and fuel cells. The switch from conventional fossil fuel resources to renewables such as solar or biomass requires new approaches in chemical engineering. Efficiency vs. emissions trade-offs for improving the eco-performance of combustion engines need to be optimized with improved understanding of the complex chemistry taking place in flames. New materials for fuel cells and batteries provide a means of making these devices applicable, thereby drastically cutting down on emissions from energy systems. Chemistry is not only involved in fuel processing and conversion, but it is also important at the end of the pipe, i.e. in catalytic emission control devices, in the treatment of hazardous residues from the incineration of waste materials, and in the complex interactions of air pollutants with the biosphere.

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“…In 2005, industrial CO 2 use was estimated to be 6.3 Gt-CO 2 /yr (Metz et al, 2005). An emerging use of CO 2 is for the solar-driven production of synthesis gas, which in turn can be used to obtain synthetic hydrocarbon fuels (Steinfeld et al, 1998;Chueh et al, 2005;Leckel, 2009;Hathaway et al, 2011). Employment of CO 2 capture systems may become necessary in the near future to stabilize CO 2 concentration in the atmosphere if the world continues to rely on fossil fuels for energy production.…”

Section: Introductionmentioning

confidence: 99%