Low-temperature oxidative coupling of methane in an electric field using carbon dioxide over Ca-doped LaAlO3 perovskite oxide catalysts

Yabe, Tomohiro; Kamite, Yukiko; Sugiura, Kei; Ogo, Shuhei; Sekine, Yasushi

doi:10.1016/j.jcou.2017.05.001

Cited by 44 publications

(24 citation statements)

References 52 publications

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“…The third scenario further includes CCU technologies for the direct conversion of CO 2 into olefins (26,27), BTX (28), carbon monoxide (3), ethylene oxide (29), and styrene (30) (SI Appendix, Fig. S1).…”

Section: Resultsmentioning

confidence: 99%

Climate change mitigation potential of carbon capture and utilization in the chemical industry

Kätelhön

Meys

Deutz

et al. 2019

Proc. Natl. Acad. Sci. U.S.A.

475

302

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Chemical production is set to become the single largest driver of global oil consumption by 2030. To reduce oil consumption and resulting greenhouse gas (GHG) emissions, carbon dioxide can be captured from stacks or air and utilized as alternative carbon source for chemicals. Here, we show that carbon capture and utilization (CCU) has the technical potential to decouple chemical production from fossil resources, reducing annual GHG emissions by up to 3.5 Gt CO2-eq in 2030. Exploiting this potential, however, requires more than 18.1 PWh of low-carbon electricity, corresponding to 55% of the projected global electricity production in 2030. Most large-scale CCU technologies are found to be less efficient in reducing GHG emissions per unit low-carbon electricity when benchmarked to power-to-X efficiencies reported for other large-scale applications including electro-mobility (e-mobility) and heat pumps. Once and where these other demands are satisfied, CCU in the chemical industry could efficiently contribute to climate change mitigation.

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Section: Resultsmentioning

confidence: 99%

Climate change mitigation potential of carbon capture and utilization in the chemical industry

Kätelhön

Meys

Deutz

et al. 2019

Proc. Natl. Acad. Sci. U.S.A.

475

302

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“…35,36 Imposition of an electric eld also promotes endothermic catalytic reactions at low temperatures. [37][38][39][40][41][42][43][44] Manabe and co-workers reported that methane steam reforming proceeded, exceeding equilibrium limitations in an electric eld at 423 K because of an irreversible reaction mechanism. 37 Hopping proton over electric-eld-imposed Pd/CeO 2 plays an important role, 37,45 and hydrogen can be obtained even at low temperatures by proton hopping.…”

Section: Introductionmentioning

confidence: 99%

Irreversible catalytic methylcyclohexane dehydrogenation by surface protonics at low temperature

et al. 2019

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“…The CH 4 conversion in the electric field at 423 K was significantly higher than in a conventional reactor at 1173 K. Nevertheless, the reaction heavily favored dry reforming to CO over the CH 4 coupling reaction. Another publication studied Ca‐doped LaAlO 3 perovskites as CO 2 ‐OCM catalysts in an electric field [54] . CH 4 conversions greater than 10 % were achieved at low furnace temperatures of 348 K. The authors reported a maximum C 2 yield of 7.4 %, the highest yield with CO 2 as an oxidant to date.…”

Section: Co2 As An Oxidant (N2o‐ocm)mentioning

confidence: 99%

Alternative Oxidants for the Catalytic Oxidative Coupling of Methane

2021

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The catalytic oxidative coupling of methane (OCM) to C2 hydrocarbons with oxygen (O2‐OCM) has garnered renewed worldwide interest in the past decade due to the emergence of enormous new shale gas resources. However, the C2 selectivity of typical OCM processes is significantly challenged by overoxidation to COx products. Other gaseous reagents such as N2O, CO2, and S2 have been investigated to a far lesser extent as alternative, milder oxidants to replace O2. Although several authoritative review articles have summarized OCM research progress in depth, recent oxidative coupling developments using alternative oxidants (X‐OCM) have not been overviewed in detail. In this perspective, we review and analyze OCM research results reporting the implementation of N2O, CO2, S2, and other non‐O2 oxidants, highlighting the unique chemistries of these systems and their advantages/challenges compared to O2‐OCM. Current outlook and potential areas for future study are also discussed.

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Low-temperature oxidative coupling of methane in an electric field using carbon dioxide over Ca-doped LaAlO3 perovskite oxide catalysts

Cited by 44 publications

References 52 publications

Climate change mitigation potential of carbon capture and utilization in the chemical industry

Climate change mitigation potential of carbon capture and utilization in the chemical industry

Irreversible catalytic methylcyclohexane dehydrogenation by surface protonics at low temperature

Alternative Oxidants for the Catalytic Oxidative Coupling of Methane

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