Hydrogen and synthetic fuel production using high temperature solid oxide electrolysis cells (SOECs)

Kazempoor, Pejman; Braun, Robert J.

doi:10.1016/j.ijhydene.2014.12.126

Cited by 59 publications

(25 citation statements)

References 24 publications

(61 reference statements)

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“…It seems that water concentration presents higher impacts than CO 2 in terms of ASR, suggesting that the reaction takes place through H 2 O electrolysis followed by RWGS. This finding is consistent with the predictions from Kazempoor and Braun [28], as they concluded that the influence on RWGS is more significant than temperature, fuel composition and flow rate. Joule heat can be easily obtained as the overpotential and current intensity is known for each operation point.…”

Section: Fuel Cell and Electrolysis Characterizationsupporting

confidence: 92%

CO₂ and steam electrolysis using a microtubular solid oxide cell

Monzón

Laguna‐Bercero

2019

J. Phys. Energy

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Nickel-yttria stabilized zirconia (Ni-YSZ) supported tubes were fabricated by plastic extrusion molding (PEM). YSZ was used as the electrolyte and LSM-YSZ (lanthanum-strontium doped manganite) as the oxygen electrode. Both layers were deposited by dip coating and were then sintered at 1500°C and 1150°C, respectively. Coelectrolysis experiments were performed in these cells at 850°C, using different fuel gas conditions varying the amount of steam, carbon dioxide, nitrogen and hydrogen. Area specific resistance (ASR) values ranged from 0.47 Ωcm 2 , when rich steam and CO 2 flows are used, to 1.74 Ωcm 2 , when a diluted composition is used. Gas chromatography was used to examine the amount of H 2 and CO in the output gas. The obtained results are consistent with the equilibrium of the water gas shift reaction. For all the different analysed conditions, faradaic efficiency was found to be close to 100%. This experiment confirmed that there is no electronic conduction taking place through the YSZ electrolyte. The threshold for electronic conduction in the diluted feeding conditions (Poor H 2 O and CO 2 ) for these particular YSZ-based cell was found at voltages of about 1.65 V.

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Section: Fuel Cell and Electrolysis Characterizationsupporting

confidence: 92%

CO₂ and steam electrolysis using a microtubular solid oxide cell

Monzón

Laguna‐Bercero

2019

J. Phys. Energy

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“…Solid oxide electrolysis cells (SOECs) have gained special attention as a promising technology for the production of hydrogen by using electrical energy preferably obtained from various renewable energy sources . SOEC can operate in a reverse principle as a solid oxide fuel cell (SOFC), which involves the combination of hydrogen and oxygen to generate electrical energy .…”

Section: Introductionmentioning

confidence: 99%

Design and characterization of novel glass‐ceramic sealants for solid oxide electrolysis cell (SOEC) applications

Javed

Sabato

Herbrig

et al. 2018

Int J Applied Ceramic Tech

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In this work, three new glass-ceramic compositions are designed and characterized as sealant materials for solid oxide electrolysis cells (SOEC), having operating temperature of 850°C. The crystallization and the sintering behavior of the glasses are investigated by using differential thermal analysis (DTA) and heating stage microscopy (HSM) respectively. The glasses show glass transition temperatures of 715-740°C, while the coefficients of thermal expansion (CTE) of 9.3-10.3 9 10 À6 K À1 (200-500°C) are measured for the glass-ceramics, matching with the CTEs of the other cell components. The compatibility between the glassceramic sealants, the 3YSZ electrolyte and the Crofer22APU interconnect is examined by means of SEM and EDS, in the as-joined condition and after 1000 hours at 850°C in air. Compositional changes in the glass-ceramic sealants are reviewed and discussed with respect to the formed crystalline phases before and after the aging treatment at 850°C. K E Y W O R D S crystals/crystallization, Interfaces, SOEC, thermal expansion ---

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“…Jensen et al proposed to use SOEC to produce Fischer-Tropsch fuels either using atmospheric or pressurized cells [18,19]. Similar results were published by Becker et al [20], and by Kazempoor and Braun [21], whereas Cinti et al [22] applied co-electrolysis to investigate the eventual convenience of distributed CO and hydrogen production and centralized F-T fuel synthesis. Co-electrolysis has also been studied for the production of chemicals by producing optimal syngas mixtures with the correct CO/H 2 ratio.…”

Section: Introductionmentioning

confidence: 73%

Potential of Reversible Solid Oxide Cells as Electricity Storage System

Giorgio

Desideri

2016

Energies

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Electrical energy storage (EES) systems allow shifting the time of electric power generation from that of consumption, and they are expected to play a major role in future electric grids where the share of intermittent renewable energy systems (RES), and especially solar and wind power plants, is planned to increase. No commercially available technology complies with all the required specifications for an efficient and reliable EES system. Reversible solid oxide cells (ReSOC) working in both fuel cell and electrolysis modes could be a cost effective and highly efficient EES, but are not yet ready for the market. In fact, using the system in fuel cell mode produces high temperature heat that can be recovered during electrolysis, when a heat source is necessary. Before ReSOCs can be used as EES systems, many problems have to be solved. This paper presents a new ReSOC concept, where the thermal energy produced during fuel cell mode is stored as sensible or latent heat, respectively, in a high density and high specific heat material and in a phase change material (PCM) and used during electrolysis operation. The study of two different storage concepts is performed using a lumped parameters ReSOC stack model coupled with a suitable balance of plant. The optimal roundtrip efficiency calculated for both of the configurations studied is not far from 70% and results from a trade-off between the stack roundtrip efficiency and the energy consumed by the auxiliary power systems.

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Hydrogen and synthetic fuel production using high temperature solid oxide electrolysis cells (SOECs)

Cited by 59 publications

References 24 publications

CO₂ and steam electrolysis using a microtubular solid oxide cell

CO₂ and steam electrolysis using a microtubular solid oxide cell

Design and characterization of novel glass‐ceramic sealants for solid oxide electrolysis cell (SOEC) applications

Potential of Reversible Solid Oxide Cells as Electricity Storage System

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Hydrogen and synthetic fuel production using high temperature solid oxide electrolysis cells (SOECs)

Cited by 59 publications

References 24 publications

CO2 and steam electrolysis using a microtubular solid oxide cell

CO2 and steam electrolysis using a microtubular solid oxide cell

Design and characterization of novel glass‐ceramic sealants for solid oxide electrolysis cell (SOEC) applications

Potential of Reversible Solid Oxide Cells as Electricity Storage System

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CO₂ and steam electrolysis using a microtubular solid oxide cell

CO₂ and steam electrolysis using a microtubular solid oxide cell