The High-Temperature Electrolysis Integrated Laboratory-Scale Experiment

Stoots, C. M.; O’Brien, James E.; Condie, K. G.; Moore-McAteer, L.; Housley, G. K.; Hartvigsen, Joseph; Herring, J. Stephen

doi:10.13182/nt09-a6966

Cited by 21 publications

(13 citation statements)

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“…For non-isothermal cases, the first law for electrolysis process must be written as: (29) In this form, all reacting and non-reacting species included in the inlet and outlet streams can be accounted for, including inert gases, inlet hydrogen (introduced to maintain reducing conditions on the steam/hydrogen electrode), and any excess unreacted steam. In general, determination of the outlet temperature from Eqn.…”

Section: Isothermal Vs Non-isothermal Operationmentioning

confidence: 99%

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High Temperature Electrolysis for Hydrogen Production from Nuclear Energy ? TechnologySummary

O’Brien¹,

Stoots²,

Herring³

et al. 2010

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The Department of Energy, Office of Nuclear Energy, has requested that a Hydrogen Technology Down-Selection be performed to identify the hydrogen production technology that has the best potential for timely commercial demonstration and for ultimate deployment with the Next Generation Nuclear Plant (NGNP). An Independent Review Team (IRT) has been assembled to execute the down-selection. This report has been prepared to provide the members of the Independent Review Team with detailed background information on the High Temperature Electrolysis (HTE) process, hardware, and state of the art. The Idaho National Laboratory has been serving as the lead lab for HTE research and development under the Nuclear Hydrogen Initiative. The INL HTE program has included small-scale experiments, detailed computational modeling, system modeling, and technology demonstration. Aspects of all of these activities are included in this report. In terms of technology demonstration, the INL successfully completed a 1000-hour test of the HTE Integrated Laboratory Scale (ILS) technology demonstration experiment during the fall of 2008. The HTE ILS achieved a hydrogen production rate in excess of 5.7 Nm 3 /hr, with a power consumption of 18 kW. This hydrogen production rate is far larger than has been demonstrated by any of the thermochemical or hybrid processes to date.This report was prepared in April-May 2009 specifically for the IRT, which at the end of its evaluation in July 2009, recommended that:DOE-NE should focus on the continued development of HTSE [High Temperature Steam Electrolysis] as the leading candidate for integration with NGNP in 2021. This conclusion is based upon the IRT judgment that HTSE has the highest probability of meeting the down-selection criteria described in the report, including efficient production of hydrogen at NGNP conditions.

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Section: Isothermal Vs Non-isothermal Operationmentioning

confidence: 99%

“…An algorithm then must be developed to iteratively solve for the product temperature, T P , in order to satisfy Eqn. (29).…”

Section: Isothermal Vs Non-isothermal Operationmentioning

confidence: 99%

High Temperature Electrolysis for Hydrogen Production from Nuclear Energy ? TechnologySummary

O’Brien¹,

Stoots²,

Herring³

et al. 2010

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“…The technology has been demonstrated with cell stacks of kW size (9,14,21,22). The company Topsoe Fuel Cell A/S is producing such stacks in Denmark.…”

Section: Solid Oxide Electrolysis Cellmentioning

confidence: 99%

(Invited) Electrochemical Routes towards Sustainable Hydrocarbon Fuels

Mogensen

2012

ECS Trans.

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The potential of renewable energy and possible solution to the intermittency problem of renewable energy sources like sun and wind are explained. The densest storage of energy is in the form of hydrocarbons. The most suitable method of conversion and storage within a foreseeable future is electrolysis followed by conversion into synthetic hydrocarbons, alcohols or ethers. Several types of electrolysers exist. The various types are listed together with a short description of principle and status. It is argued that electrolysis will at least become part of large sustainable energy systems in the future. In spite of this, it is important to research and develop as many viable sustainable energy technologies as economical possible.

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“…A unique aspect of this process is the integration of biomass gasification with hydrogen production based on HTSE. The Idaho National Laboratory (INL) has been a world leader in developing HTSE technology for several years and has demonstrated HTSE at the bench and integrated laboratory (15 kW) scales [19]. In this concept, the high temperature process heat for HTE is provided in a synergistic fashion by the biomass gasifier while the oxygen required for the gasifier is produced as a by-product of the HTE process.…”

Section: Nuclearmentioning

confidence: 99%

Liquid Bio-Fuel Production From Non-Food Biomass via High Temperature Steam Electrolysis

Hawkes

O’Brien

McKellar

2011

Volume 4: Energy Systems Analysis, Thermodynamics and Sustainability; Combustion Science and Engineering; Nanoengineering for E

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Two hybrid energy processes that enable production of synthetic liquid fuels that are compatible with the existing conventional liquid transportation fuels infrastructure are presented. Using biomass as a renewable carbon source, and supplemental hydrogen from high-temperature steam electrolysis (HTSE), these two hybrid energy processes have the potential to provide a significant alternative petroleum source that could reduce US dependence on imported oil. The first process discusses a hydropyrolysis unit with hydrogen addition from HTSE. The second process discusses a process named Bio-Syntrolysis. The Bio-Syntrolysis process combines hydrogen from HTSE with CO from an oxygen-blown biomass gasifier that yields syngas to be used as a feedstock for synthesis of liquid transportation fuels via a Fischer-Tropsch process. Conversion of syngas to liquid hydrocarbon fuels, using a biomass-based carbon source, expands the application of renewable energy beyond the grid to include transportation fuels. It can also contribute to grid stability associated with non-dispatchable power generation. The use of supplemental hydrogen from HTSE enables greater than 90% utilization of the biomass carbon content which is about 2.5 times higher than carbon utilization associated with traditional cellulosic ethanol production. If the electrical power source needed for HTSE is based on nuclear or renewable energy, the process is carbon neutral. INL has demonstrated improved biomass processing prior to gasification. Recyclable biomass in the form of crop residue or energy crops would serve as the feedstock for this process. A process model of syngas production using high temperature electrolysis and biomass gasification is presented. Process heat from the biomass gasifier is used to heat steam for the hydrogen production via the high temperature steam electrolysis process. Oxygen produced form the electrolysis process is used to control the oxidation rate in the oxygenblown biomass gasifier.

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The High-Temperature Electrolysis Integrated Laboratory-Scale Experiment

Cited by 21 publications

References 0 publications

High Temperature Electrolysis for Hydrogen Production from Nuclear Energy ? TechnologySummary

High Temperature Electrolysis for Hydrogen Production from Nuclear Energy ? TechnologySummary

(Invited) Electrochemical Routes towards Sustainable Hydrocarbon Fuels

Liquid Bio-Fuel Production From Non-Food Biomass via High Temperature Steam Electrolysis

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