Perovskite ceramics and recent experimental progress in reactor design for chemical looping combustion application

Abstract

Chemical looping combustion (CLC) is a novel method of carbon capture and sequestration. It facilitates CO2 capture by lower energy penalties compared with other methods in this category. The major challenges encountered in CLC are oxygen carrier, reactor and fuel-type selection. A proper combination of these factors is required for an efficient CLC. There have been several studies with regard to oxygen carriers applicable to these processes: novel oxygen carriers, single perovskites and potential oxygen carriers, double perovskites, have been investigated for their oxygen capture and release properties in a number of studies. Different kinds of reactors have also been proposed for use in CLC processes. This paper presents information on the materials capable of oxygen storage and release and the different kinds of reactors investigated for CLC in different studies. It has been shown that, although there are several oxygen carriers and reactors with the desired function and efficiency for CLC, there remains the need for further improvement and optimisation in both areas.

Development of Chemical Looping Combustion Power Systems at the Chinese Academy of Sciences

“…Romos et al 63 depicted two primary strategies for tuning the oxygen vacancy formation energy by composition for lowtemperature thermochemical cycles, including the partial substitution of a divalent atom (e.g., Sr) at the A site and transition metals (e.g., Fe, Mn, and Co) at the B site. The development of perovskites was reviewed by Tang et al 159 for methane-based chemical looping reforming, Steinfeld et al 75 for solar thermochemical redox cycles, Mina et al 164 for CLC application, Thursfield et al 165 for chemical looping processes, etc.…”

110th Anniversary: Carbon Dioxide and Chemical Looping: Current Research Trends

“…The rotating reactor aims to intensify the process by providing a more compact configuration that eliminates the need for separation between solids and gases . A drawback of the reactor configuration proposed by Zhao and co-workers , is the requirement of an immobilized solid looping material, e.g., by coating it onto a porous substrate, which may pose restrictions with respect to the application of solid looping materials.…”

“…181,182 need for separation between solids and gases. 274 A drawback of the reactor configuration proposed by Zhao and co-workers 251,252 is the requirement of an immobilized solid looping material, e.g., by coating it onto a porous substrate, which may pose restrictions with respect to the application of solid looping materials. Moreover, temperature fluctuations in different reactor zones may cause significant stress levels on the reactor system by position-dependent expansion.…”

Microstructural Stability of Tailored CaMn0.875−xFexTi0.125O3−δ Perovskite Oxygen Carrier Materials for Chemical Looping Combustion

“…Furthermore, materials must be of low cost and low toxicity . From expensive nickel oxide to low‐costing ores, several hundreds of materials based on Ni, Cu, Fe, Mn, Co, and mixtures of these materials have been studied as potential OCMs for CLC . Lately, there has been significant interest in mixed transition‐metal oxides and complex perovskite‐type oxides, especially those derived from the calcium manganite CaMnO 3− δ family.…”