Results 11 to 20 of about 3,162,442 (398)

Reverse Water–Gas Shift Chemical Looping Using a Core–Shell Structured Perovskite Oxygen Carrier

open access: yesEnergies, 2020
Reverse water–gas shift chemical looping (RWGS-CL) offers a promising means of converting the greenhouse gas of CO2 to CO because of its relatively low operating temperatures and high CO selectivity without any side product.
Minbeom Lee   +5 more
doaj   +2 more sources

New Insight into the Development of Oxygen Carrier Materials for Chemical Looping Systems

open access: yesEngineering, 2018
Chemical looping combustion (CLC) and chemical looping reforming (CLR) are innovative technologies for clean and efficient hydrocarbon conversion into power, fuels, and chemicals through cyclic redox reactions.
Zhuo Cheng   +3 more
doaj   +2 more sources

Syngas Production in a 1.5 kWth Biomass Chemical Looping Gasification Unit Using Fe and Mn Ores as the Oxygen Carrier. [PDF]

open access: yesEnergy Fuels, 2021
Biomass chemical looping gasification (BCLG) uses lattice oxygen from an oxygen carrier instead of gaseous oxygen for high-quality syngas production without CO2 emissions.
Condori O   +5 more
europepmc   +2 more sources

Highly Selective Oxidative Dehydrogenation of Ethane to Ethylene via Chemical Looping with Oxygen Uncoupling through Structural Engineering of the Oxygen Carrier

open access: yesAdvanced Energy Materials, 2022
The oxidative dehydrogenation of ethane (ODH) to produce ethylene offers advantages compared to the industry standard steam cracking, but its industrial application is hindered by costly air separation units needed to supply oxygen.
G. Luongo   +5 more
semanticscholar   +1 more source

Oxygen Carrier Aided Combustion in Fluidized Bed Boilers in Sweden—Review and Future Outlook with Respect to Affordable Bed Materials

open access: yesApplied Sciences, 2021
Oxygen carriers are metal oxide particles that could potentially enhance both fuel conversion and heat distribution in fluidized bed combustion, resulting in e.g., lowered emissions of unconverted species and better possibilities to utilize low-grade ...
Felicia Störner, F. Lind, Magnus Rydén
semanticscholar   +1 more source

Controlling lattice oxygen activity of oxygen carrier materials by design: a review and perspective

open access: yesReaction Chemistry & Engineering, 2021
The lattice oxygen activity of oxygen carriers is critical to chemical looping processes and can be effectively controlled with prepared (i) solid solution mixtures, (ii) ternary oxide phases or (iii) core–shell structured oxygen carriers.
Wen Liu
semanticscholar   +1 more source

Understanding the Interaction of Potassium Salts with an Ilmenite Oxygen Carrier Under Dry and Wet Conditions. [PDF]

open access: yesACS Omega, 2020
This study describes how potassium salts representative of those in bio ash affect the reactivity of the oxygen carrier ilmenite under moist and dry conditions. Ilmenite is a bench-mark oxygen carrier for chemical-looping combustion, a technique that can
Hildor F   +4 more
europepmc   +2 more sources

Comparison of Bimetallic Fe-Cu and Fe-Ca Oxygen Carriers for Biomass Gasification

open access: yesEnergies, 2020
Two bimetallic Fe-Cu and Fe-Ca oxygen carriers were studied for chemical looping gasification (CLG) of biomass. The SEM results indicated that there was no obvious agglomeration on the bimetallic Fe-Cu oxygen carrier supported on Al2O3 and Fe-Ca oxygen ...
Beatrice Muriungi   +2 more
doaj   +1 more source

Development of Stable Oxygen Carrier Materials for Chemical Looping Processes—A Review

open access: yesCatalysts, 2020
This review aims to give more understanding of the selection and development of oxygen carrier materials for chemical looping. Chemical looping, a rising star in chemical technologies, is capable of low CO2 emissions with applications in the production ...
Yoran De Vos   +5 more
semanticscholar   +1 more source

Iron-based oxygen carriers in chemical looping conversions: A review

open access: yesCarbon Resources Conversion, 2019
A solid oxygen carrier is usually applied in a chemical looping conversion process to transfer oxygen from the gaseous oxygen source to the fuel, which can avoid the direct contact of these two reactants and hence decrease the energy penalty of ...
Zhongliang Yu   +7 more
doaj   +1 more source

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