High temperature solid oxide H2O/CO2 co-electrolysis for syngas production

Wang, Yao; Liu, Tong; Lei, Libin; Chen, Fanglin

doi:10.1016/j.fuproc.2016.08.009

Cited by 106 publications

(64 citation statements)

References 87 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Since these electrolytes conduct CO 3 2− and O 2 − charge carriers respectively, the electrolysis of both CO 2 to CO and H 2 O to H 2 is not vulnerable to contamination. Co-electrolysis of H 2 O steam and CO 2 can be carried out with a likely advantage in a SOEC system, having in view obtaining syngas and producing synthetic fuel [74,75]. CO 2 and H 2 O are fed to the electrolytic cell through a heat exchanger to attain 900 • C. At that temperature, H 2 O and CO 2 thermo-neutral voltages are 1.29 V and 1.46 V respectively.…”

Section: Electrochemical Synthesismentioning

confidence: 99%

“…Electrolysis and synthesis heat management are to be integrated. Given evidence that the co-electrolysis exhibits a performance comparable to the electrolysis of H 2 O alone [19,75], and assuming that the process is entirely driven by electricity and that the waste heat is entirely recycled, the efficiency of energy conversion from primary electricity and raw feedstocks into synfuel is estimated at around 60%. That is comparable to the higher estimate reported in the preceding Section 6.2 regarding synthetic fuels obtained along a similar pathway, the main difference being one has the co-electrolysis of CO 2 /H 2 O now, instead of the sole electrolysis of H 2 O then.…”

Section: Electrochemical Synthesismentioning

confidence: 99%

See 1 more Smart Citation

The Role of Synthetic Fuels for a Carbon Neutral Economy

Rosa

2017

View full text Add to dashboard Cite

Fossil fuels depletion and increasing environmental impacts arising from their use call for seeking growing supplies from renewable and nuclear primary energy sources. However, it is necessary to simultaneously attend to both the electrical power needs and the specificities of the transport and industrial sector requirements. A major question posed by the shift away from traditional fossil fuels towards renewable energy sources lies in matching the power demand with the daily and seasonal oscillation and the intermittency of these natural energy fluxes. Huge energy storage requirements become necessary or otherwise the decline of the power factor of both the renewable and conventional generation would mean loss of resources. On the other hand, liquid and gaseous fuels, for which there is vast storage and distribution capacity available, appear essential to supply the transport sector for a very long time ahead, besides their domestic and industrial roles. Within this context, the present assessment suggests that proven technologies and sound tested principles are available to develop an integrated energy system, relying on synthetic fuels. These would incorporate carbon capture and utilization in a closed carbon cycle, progressively relying mostly on solar and/or nuclear primary sources, providing both electric power and gaseous/liquid hydrocarbon fuels, having ample storage capacity, and able to timely satisfy all forms of energy demand. The principles and means are already available to develop a carbon-neutral synthetic fuel economy.

show abstract

Section: Electrochemical Synthesismentioning

confidence: 99%

Section: Electrochemical Synthesismentioning

confidence: 99%

The Role of Synthetic Fuels for a Carbon Neutral Economy

Rosa

2017

View full text Add to dashboard Cite

show abstract

“…ChemSusChem 2017, 10,4264 -4276 www.chemsuschem.org can electrolyze not only H 2 Ob ut also am ixture of H 2 Oa nd CO 2 to produce synthesis gas (a mixture of H 2 and CO), [41,42] which can be furtherc onverted into various types of synthetic fuels. [43][44][45][46][47] An SOEC for simulated seawater electrolysis is shown in Figure 3, where ab utton cell is sealed with ag lass sealant to separatet he gas environment between the anode and the cathode. [48] The NiO/YSZ electrode (cathode;Y SZ = yttria-stabilized zirconia) was obtained by mixing6 0wt% nickel oxide power and 40 wt %Y SZ powder together with as mall amount of carbon black.…”

Section: Introductionmentioning

confidence: 99%

Fuel Production from Seawater and Fuel Cells Using Seawater

2017

View full text Add to dashboard Cite

Seawater is the most abundant resource on our planet and fuel production from seawater has the notable advantage that it would not compete with growing demands for pure water. This Review focuses on the production of fuels from seawater and their direct use in fuel cells. Electrolysis of seawater under appropriate conditions affords hydrogen and dioxygen with 100 % faradaic efficiency without oxidation of chloride. Photoelectrocatalytic production of hydrogen from seawater provides a promising way to produce hydrogen with low cost and high efficiency. Microbial solar cells (MSCs) that use biofilms produced in seawater can generate electricity from sunlight without additional fuel because the products of photosynthesis can be utilized as electrode reactants, whereas the electrode products can be utilized as photosynthetic reactants. Another important source for hydrogen is hydrogen sulfide, which is abundantly found in Black Sea deep water. Hydrogen produced by electrolysis of Black Sea deep water can also be used in hydrogen fuel cells. Production of a fuel and its direct use in a fuel cell has been made possible for the first time by a combination of photocatalytic production of hydrogen peroxide from seawater and dioxygen in the air and its direct use in one‐compartment hydrogen peroxide fuel cells to obtain electric power.

show abstract

“…Although more and more effort s are being devoted to develop SOECs technique to electrolyze CO 2 and H 2 O, there is still a long way to achieve the practical application and commercialization due to the lack of highly active cathode materials, mechanism understanding for CO 2 electrolysis reaction, etc. In recent years, several comprehensive and profound reviews have discussed this topic [14,16,17,[34][35][36][37] . In order to avoid unnecessary repetition and minimize overlapping, our review is focused on cathode material for CO 2 /H 2 O co-electrolysis and the related reaction mechanism discussion.…”

Section: Introductionmentioning

confidence: 99%