Hydrogen production via thermochemical cycles based on sulfur chemistry

Soliman, M.A.; Conger, W. L.; Carty, R.H.; Funk, James E.; Cox, K.E.

doi:10.1016/0360-3199(76)90022-7

Cited by 7 publications

(7 citation statements)

References 3 publications

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“…In fact, although their focus was primarily on producing CO 2 , the process that Lewis and Gilliland proposed is now referred to as chemical looping combustion . The concept of thermally splitting water in hydrogen and oxygen by means of a two-step chemical looping process can be traced back at least to 1966, when Funk and Reinstrom made a thermodynamic study on the decomposition of water for hydrogen production . After a patent filed by Schulten and Knoche in 1972, research interest in other sulfur-based thermochemical looping cycles for hydrogen production increased in the 1970s. , In 1976, Kameyama and co-workers published a particularly thorough screening method for potential multistep thermochemical hydrogen production cycles based on metal chlorides, bromides, iodides, sulfates and nitrates . The three-step cycle proposed by Schulten and Knoche, which requires recycling of gaseous SO 2 , is presented by eqs –.…”

Section: Chemical Loopingmentioning

confidence: 99%

“…92 After a patent filed by Schulten and Knoche in 1972, 93 research interest in other sulfur-based thermochemical looping cycles for hydrogen production increased in the 1970s. 94,95 In 1976, Kameyama and coworkers published a particularly thorough screening method for potential multistep thermochemical hydrogen production cycles based on metal chlorides, bromides, iodides, sulfates and nitrates. 96 The three-step cycle proposed by Schulten and Knoche, which requires recycling of gaseous SO 2 , is presented by eqs 17−19.…”

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confidence: 99%

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110th Anniversary: Carbon Dioxide and Chemical Looping: Current Research Trends

Buelens

Poelman

Marin

et al. 2019

Ind. Eng. Chem. Res.

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Driven by the need to develop technologies for converting CO 2 , an extraordinary array of chemical looping based process concepts has been proposed and researched over the past 15 years. This review aims at providing first a historical context of the molecule CO 2 , which sits at the center of these developments. Then, different types of chemical looping related to CO 2 are addressed, with attention to process concepts, looping materials, and reactor configurations. Herein, focus lies on the direct conversion of carbon dioxide into carbon monoxide, a process deemed to have economic potential.

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Section: Chemical Loopingmentioning

confidence: 99%

mentioning

confidence: 99%

110th Anniversary: Carbon Dioxide and Chemical Looping: Current Research Trends

Buelens

Poelman

Marin

et al. 2019

Ind. Eng. Chem. Res.

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“…Development of these applications should be relatively uncomplicated whenever hydrogen becomes cost competitive. 4. Systems studies and assessments.…”

Section: E Production and Distribution Implicationsmentioning

confidence: 99%

“…111. 4 Davis, 1975] indicates that z00 these quantities of water are available. hydrogen users to accept externally-supplied hydrogen, a wellplanned distribution system, and a guaranteed, stable hydrogen supply at established prices are essential.…”

Section: A Supplying the Low-merchant Casementioning

confidence: 99%

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Hydrogen tomorrow: demands and technology requirements

Nasa¹

1975

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Results of the NASA 1975 Hydrogen Energy Systems Technology Y 9Y Y 9Y (HEST)Study are reported. The Study projected national needs for hydrogen, evaluated technologies of production, handling, and utilization, and determined the critical research and technology activities required to meet the needs. It adopted an approach of seeking the broadest available spectrum of information and insights from NASA and other government agencies, ' from universities and from industry, and of assessing, validating, and integrating the results of other hydrogen-related studies in order to form ; specific conclusions.The HEST Study found current U.S. hydrogen utilization to be dominated 1 by chemical-industry and petroleum-processing applications, and to represent 3% of total energy consumption. The Study's projections of hydrogen use show growth in the remainder of this century by at least a factor of five, and perhaps a factor of twenty. New applications in the manufacture of synthetic fuels from coal and directly as an energy storage medium and fuel are expected to emerge later this century. Of these new uses, electric utility energy storage for peak-shaving, supplements to the natural gas supply, and special purpose transportation fuel such as aircraft, show promise.The Study concludes that the development and implementation of new means of supplying hydrogen, replacing the use of natural gas and petroleum feedstocks, are imperative. New production technology is essential to support even the lowest growth estimate. Methods based on alternative fossil feedstocks, such as coal and heavy oils, which are less expensive and nearer to technical maturity than non-fossil production systems, should be made operational while these feedstocks are abundant. Concurrently, the longterm tasks of advancing electrolysis technology, researching other water splitting techniques, and integrating these with developing nuclear and emerging solar primary-energy systems, must be carried on, together with work on hydrogen combustion systems and research in materials and safety engineering. Systems studies and assessments of the economic, social, and environmental impacts of hydrogen technology are also called for. ACKNOWLEDGMENTSThe HEST Study was initiated and carried out under the direction of the NASA Office of Energy Programs. Supportive efforts were provided by the

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Hydrogen production using fusion energy and thermochemical cycles

Dang

Steinberg

1980

International Journal of Hydrogen Energy

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Hydrogen production via thermochemical cycles based on sulfur chemistry

Cited by 7 publications

References 3 publications

110th Anniversary: Carbon Dioxide and Chemical Looping: Current Research Trends

110th Anniversary: Carbon Dioxide and Chemical Looping: Current Research Trends

Hydrogen tomorrow: demands and technology requirements

Hydrogen production using fusion energy and thermochemical cycles

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