Please wait a minute...

Frontiers in Energy

Front. Energy    2020, Vol. 14 Issue (1) : 71-80     https://doi.org/10.1007/s11708-019-0652-9
RESEARCH ARTICLE
Thermodynamic assessment of hydrogen production via solar thermochemical cycle based on MoO2/Mo by methane reduction
Jiahui JIN1, Lei WANG2, Mingkai FU3(), Xin LI2, Yuanwei LU1()
1. College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
2. Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
3. Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China
Download: PDF(1537 KB)   HTML
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract

Inspired by the promising hydrogen production in the solar thermochemical (STC) cycle based on non-stoichiometric oxides and the operation temperature decreasing effect of methane reduction, a high-fuel-selectivity and CH4-introduced solar thermochemical cycle based on MoO2/Mo is studied. By performing HSC simulations, the energy upgradation and energy conversion potential under isothermal and non-isothermal operating conditions are compared. In the reduction step, MoO2: CH4 = 2 and 1020 K<Tred<1600 K are found to be most favorable for syngas selectivity and methane conversion. Compared to the STC cycle without CH4, the introduction of methane yields a much higher hydrogen production, especially at the lower temperature range and atmospheric pressure. In the oxidation step, a moderately excessive water is beneficial for energy conversion whether in isothermal or non-isothermal operations, especially at H2O: Mo= 4. In the whole STC cycle, the maximum non-isothermal and isothermal efficiency can reach 0.417 and 0.391 respectively. In addition, the predicted efficiency of the second cycle is also as high as 0.454 at Tred = 1200 K and Toxi = 400 K, indicating that MoO2 could be a new and potential candidate for obtaining solar fuel by methane reduction.

Keywords MoO2/Mo based on solar thermochemical cycle      methanothermal reduction      isothermal and non-isothermal operation      syngas and hydrogen production      thermodynamic analysis     
Corresponding Authors: Mingkai FU,Yuanwei LU   
Online First Date: 19 December 2019    Issue Date: 16 March 2020
 Cite this article:   
Jiahui JIN,Lei WANG,Mingkai FU, et al. Thermodynamic assessment of hydrogen production via solar thermochemical cycle based on MoO2/Mo by methane reduction[J]. Front. Energy, 2020, 14(1): 71-80.
 URL:  
http://journal.hep.com.cn/fie/EN/10.1007/s11708-019-0652-9
http://journal.hep.com.cn/fie/EN/Y2020/V14/I1/71
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
Jiahui JIN
Lei WANG
Mingkai FU
Xin LI
Yuanwei LU
Fig.1  ?G versus temperature with (red) and without (blue) CH4.
Fig.2  Process of solar thermochemical cycle with methane reduction based on MoO2/Mo.
Parameter Definition Unit
C0 Mean flux concentration ratio suns
I Normal beam solar insolation W/m2
σ Stefan- Boltzmann constant, 5.67 × 108 W/(m2·K4)
T0 Ambient temperature K
Tred Reduction step temperature K
Toxi Oxidation step temperature K
Qreactor Received energy of solar reactor kJ
neq Equilibrium amount of substance mol
ni Number of moles of substance mol
hsolar-to-fuel Solar-to-fuel efficiency
ΔfH Standard molar enthalpy of formation kJ/mol
ΔH Enthalpy change kJ/mol
CP Specific heat capacity kJ/(mol·K)
Si Production selectivity of i
HHV Higher heating value kJ/mol
χCH4 Conversion ratio of CH4
Rred CH4:MoO2 ratio at the reduction step
Roxi H2O:Mo ratio at the oxidation step
Tab.1  Nomenclature of main parameters
Fig.3  Equilibrium composition analysis under different Rred and temperature conditions.
Fig.4  Equilibrium composition selectivity of STC system at 600 K<Tred<1600 K.
Fig.5  Equilibrium compositions of oxidation step at 400 K<Toxi<1600 K, and Roxi = 2 (red), 4 (blue), 6 (pink), 8 (black).
Fig.6  Maximum production of H2 with (solid line) and without (dash line) CH4 at 1000 K<Tred<3000 K ( p O2 represents partial oxygen pressure.)
Fig.7  Computational U at temperature ranges of 600 K<Tred<1600 K, 400 K<Toxi<1600 K and Rred = 2.
Fig.8  hsolar-to-fuel of STC system at 1020 K<Tred<1200 K, 400 K<Toxi<1600 K.
Fig.9  Solar to fuel efficiency under isothermal operation at Roxi = 2, 4, 6, and 8.
Fig.10  Solar-to-fuel efficiency in the second STC redox cycle.
1 W C Chueh, C Falter, M Abbott, D Scipio, P Furler, S M Haile, A Steinfeld. High-flux solar-driven thermochemical dissociation of CO2 and H2O using nonstoichiometric ceria. Science, 2010, 330(6012): 1797–1801
https://doi.org/10.1126/science.1197834
2 W C Chueh, S M Haile. A thermochemical study of ceria: exploiting an old material for new modes of energy conversion and CO2 mitigation. Philosophical Transactions: Mathematical. Physical and Engineering Sciences, 1923, 2010(368): 3269–3294
3 N P Siegel, J E Miller, I Ermanoski, R B Diver, E B Stechel. Factors affecting the efficiency of solar driven metal oxide thermochemical cycles. Industrial & Engineering Chemistry Research, 2013, 52(9): 3276–3286
https://doi.org/10.1021/ie400193q
4 P Charvin, S Abanades, E Beche, F Lemont, G Flamant. Hydrogen production from mixed cerium oxides via three-step water-splitting cycles. Solid State Ionics, 2009, 180(14–16): 1003–1010
https://doi.org/10.1016/j.ssi.2009.03.015
5 R J Carrillo, J R Scheffe. Advances and trends in redox materials for solar thermochemical fuel production. Solar Energy, 2017, 156: 3–20
https://doi.org/10.1016/j.solener.2017.05.032
6 M Ezbiri, M Takacs, D Theiler, R Michalsky, A Steinfeld. Tunable thermodynamic activity of LaxSr1−xMnyAl1−yO3−d (0≤x≤1, 0≤y≤1) perovskites for solar thermochemical fuel synthesis. Journal of Materials Chemistry A, Materials for Energy and Sustainability, 2017, 5(8): 4172–4182
https://doi.org/10.1039/C6TA06644E
7 J R Scheffe, A Steinfeld. Oxygen exchange materials for solar thermochemical splitting of H2O and CO2: a review. Materials Today, 2014, 17(7): 341–348
https://doi.org/10.1016/j.mattod.2014.04.025
8 D Weibel, Z R Jovanovic, E Gálvez, A Steinfeld. Mechanism of Zn particle oxidation by H2O and CO2 in the presence of ZnO. Chemistry of Materials, 2014, 26(22): 6486–6495
https://doi.org/10.1021/cm503064f
9 S Ackermann, J R Scheffe, A Steinfeld. Diffusion of oxygen in ceria at elevated temperatures and its application to H2O/CO2 splitting thermochemical redox cycles. Journal of Physical Chemistry C, 2014, 118(10): 5216–5225
https://doi.org/10.1021/jp500755t
10 M Takacs, J R Scheffe, A Steinfeld. Oxygen nonstoichiometry and thermodynamic characterization of Zr doped ceria in the 1573–1773 K temperature range. Physical Chemistry Chemical Physics, 2015, 17(12): 7813–7822
https://doi.org/10.1039/C4CP04916K
11 D Yadav, R Banerjee. A review of solar thermochemical processes. Renewable & Sustainable Energy Reviews, 2016, 54: 497–532
https://doi.org/10.1016/j.rser.2015.10.026
12 A Demont, S Abanades. Solar thermochemical conversion of CO2 into fuel via two-step redox cycling of non-stoichiometric Mn-containing perovskite oxides. Journal of Physical Chemistry A, 2015, 3(7): 3536–3546
13 J R Scheffe, D Weibel, A Steinfeld. Lanthanum-strontium-manganese perovskites as redox materials for solar thermochemical splitting of H2O and CO2. Energy & Fuels, 2013, 27(8): 4250–4257
https://doi.org/10.1021/ef301923h
14 A H Bork, M Kubicek, M Struzik, J L M Rupp. Perovskite La0.6Sr0.4Cr1−xCoxO3−d solid solutions for solar-thermochemical fuel production: strategies to lower the operation temperature. Journal of Physical Chemistry A, 2015, 3(30): 15546–15557
https://doi.org/10.1039/C5TA02519B
15 C K Yang, Y Yamazaki, A Aydin, S M Haile. Thermodynamic and kinetic assessments of strontium-doped lanthanum manganite perovskites for two-step thermochemical water splitting. Journal of Materials Chemistry A, Materials for Energy and Sustainability, 2014, 2(33): 13612–13623
https://doi.org/10.1039/C4TA02694B
16 M Roeb, M Neises, N Monnerie, F Call, H Simon, C Sattler, M Schmücker, R Pitz-Paal. Materials-related aspects of thermochemical water and carbon dioxide splitting: a review. Materials (Basel), 2012, 5(11): 2015–2054
https://doi.org/10.3390/ma5112015
17 A Demont, S Abanades. High redox activity of Sr-substituted lanthanum manganite perovskites for two-step thermochemical dissociation of CO2. RSC Advances, 2014, 4(97): 54885–54891
https://doi.org/10.1039/C4RA10578H
18 T Kodama, T Shimizu, T Satoh, M Nakata, K I Shimizu. Stepwise production of CO-RICH syngas and hydrogen via solar methane reforming by using a Ni(II)-ferrite redox system. Solar Energy, 2002, 73(5): 363–374
https://doi.org/10.1016/S0038-092X(02)00112-3
19 P T Krenzke, J H Davidson. Thermodynamic analysis of syngas production via the solar thermochemical cerium oxide redox cycle with methane-driven reduction. Energy & Fuels, 2014, 28(6): 4088–4095
https://doi.org/10.1021/ef500610n
20 S Abanades, M Chambon. CO2 dissociation and upgrading from two-step solar thermochemical processes based on ZnO/Zn and SnO2/SnO redox pairs. Energy & Fuels, 2010, 24(12): 6667–6674
https://doi.org/10.1021/ef101092u
21 D A Marxer, P Furler, J R Scheffe, H Geerlings, C Falter, V Batteiger, A Sizmann, A Steinfeld. Demonstration of the entire production chain to renewable kerosene via solar thermochemical splitting of H2O and CO2. Energy & Fuels, 2015, 29(5): 3241–3250
https://doi.org/10.1021/acs.energyfuels.5b00351
22 Y Hao, C K Yang, S M Haile. High-temperature isothermal chemical cycling for solar-driven fuel production. Physical Chemistry Chemical Physics, 2013, 15(40): 17084–17092
https://doi.org/10.1039/c3cp53270d
23 A Roine. Outokumpu HSC Chemistry for Windows, Version 7.1. Pori, Finland: Outokumpu Research Oy, 2013
24 R R Bhosale, A Kumar, F Almomani, U Ghosh, D Dardor, Z Bouabidi, M Ali, S Yousefi, A AlNouss, M S Anis, M H Usmani, M H Ali, R S Azzam, A Banu. Solar co-production of samarium and syngas via methanothermal reduction of samarium sesquioxide. Energy Conversion and Management, 2016, 112: 413–422
https://doi.org/10.1016/j.enconman.2016.01.032
25 A Steinfeld, C Larson, R Palumbo, M Foley III. Thermodynamic analysis of the co-production of zinc and synthesis gas using solar process heat. Energy, 1996, 21(3): 205–222
https://doi.org/10.1016/0360-5442(95)00125-5
26 P T Krenzke, J R Fosheim, J H Davidson. Solar fuels via chemical-looping reforming. Solar Energy, 2017, 156: 48–72
https://doi.org/10.1016/j.solener.2017.05.095
27 R R Bhosale, A Kumar, P Sutar. Thermodynamic analysis of solar driven SnO2 /SnO based thermochemical water splitting cycle. Energy Conversion and Management, 2017, 135: 226–235
https://doi.org/10.1016/j.enconman.2016.12.067
28 D Marxer, P Furler, M Takacs, A Steinfeld. Solar thermochemical splitting of CO2 into separate streams of CO and O2 with high selectivity, stability, conversion, and efficiency. Energy & Environmental Science, 2017, 10(5): 1142–1149
https://doi.org/10.1039/C6EE03776C
29 R Bader, L J Venstrom, J H Davidson, W Lipiński. Thermodynamic analysis of isothermal redox cycling of ceria for solar fuel production. Energy & Fuels, 2013, 27(9): 5533–5544
https://doi.org/10.1021/ef400132d
30 I Ermanoski, J E Miller, M D Allendorf. Efficiency maximization in solar-thermochemical fuel production: challenging the concept of isothermal water splitting. Physical Chemistry Chemical Physics, 2014, 16(18): 8418–8427
https://doi.org/10.1039/C4CP00978A
Related articles from Frontiers Journals
[1] Zhiwei MA, Huashan BAO, Anthony Paul ROSKILLY. Numerical study of a hybrid absorption-compression high temperature heat pump for industrial waste heat recovery[J]. Front. Energy, 2017, 11(4): 503-509.
[2] ZHAO Liangju, GAO Hong, TANG Jingwen, YUAN Yuexiang, WANG Fei. Shock wave of vapor-liquid two-phase flow[J]. Front. Energy, 2008, 2(3): 344-347.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed