Alstom’s Chemical Looping Combustion Technology for CO&lt;Sub&gt;2&lt;/Sub&gt; Capture for New and Retrofit Coal-Fired Power Plants

Andrus, Herbert E.

doi:10.2172/1440120

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table provides an overview of the well-known CLC pilot plants that mainly differ in the process design and the equivalent thermal size. The majority of CLC pilot plants are designed for a nominal capacity of less than 50 kW th . ,,, There are only a few CLC pilot plants with a nominal capacity greater than 100 kW th , such as the 150 kW th test plant of SINTEF, , the 1 MW th test plant of the Technical University of Darmstadt, ,, Alstom’s 3 MW th experimental plant, and the 4 MW th CLC boiler at Chalmers University of Technology . The listed CLC pilot plants in Table are not complete and are the result of long-term development activities of companies and universities and in most cases not freely available.…”

Section: Introductionmentioning

confidence: 99%

Overview of Fluidized Bed Reactor Modeling for Chemical Looping Combustion: Status and Research Needs

et al. 2022

View full text Add to dashboard Cite

Modeling of next-generation CO2 capture technology, namely, chemical looping combustion (CLC), in bubbling and circulating fluidized bed reactors is briefly reviewed, and a summary of published mathematical reactor models is presented. The emphasis is on a macroscopic modeling approach, which, aiming at both low computing times and accuracy of results, adopts a phenomenological view and combines transport equations with semiempirical correlations to describe the relevant fluidized bed phenomena, for example, gas–solid flow behavior, reaction characteristics, and thermal effects. Important aspects to be considered in the modeling of CLC in a dual fluidized bed reactor system are highlighted, together with indications of the research needs detected among the reviewed works. So far, semiempirical reactor models have been validated based on experimental results obtained at a larger scale of CLC technology, i.e, up to 0.15 MWth for gaseous fuels (syngas and methane) and up to 1 MWth for solid fuels (mainly coal). Overall, the model predictions agree reasonably well with experiments selected for validation, despite the various model formulations and input data. The research achieved in dynamic process simulation of CLC is very limited.

show abstract

Section: Introductionmentioning

confidence: 99%

Overview of Fluidized Bed Reactor Modeling for Chemical Looping Combustion: Status and Research Needs

et al. 2022

View full text Add to dashboard Cite

show abstract

Precursor engineering of hydrotalcite-derived redox sorbents for reversible and stable thermochemical oxygen storage

et al. 2022

View full text Add to dashboard Cite

Chemical looping processes based on multiple-step reduction and oxidation of metal oxides hold great promise for a variety of energy applications, such as CO2 capture and conversion, gas separation, energy storage, and redox catalytic processes. Copper-based mixed oxides are one of the most promising candidate materials with a high oxygen storage capacity. However, the structural deterioration and sintering at high temperatures is one key scientific challenge. Herein, we report a precursor engineering approach to prepare durable copper-based redox sorbents for use in thermochemical looping processes for combustion and gas purification. Calcination of the CuMgAl hydrotalcite precursors formed mixed metal oxides consisting of CuO nanoparticles dispersed in the Mg-Al oxide support which inhibited the formation of copper aluminates during redox cycling. The copper-based redox sorbents demonstrated enhanced reaction rates, stable O2 storage capacity over 500 redox cycles at 900 °C, and efficient gas purification over a broad temperature range. We expect that our materials design strategy has broad implications on synthesis and engineering of mixed metal oxides for a range of thermochemical processes and redox catalytic applications.

show abstract

Alstom’s Chemical Looping Combustion Technology for CO<Sub>2</Sub> Capture for New and Retrofit Coal-Fired Power Plants

Cited by 2 publications

References 0 publications

Overview of Fluidized Bed Reactor Modeling for Chemical Looping Combustion: Status and Research Needs

Overview of Fluidized Bed Reactor Modeling for Chemical Looping Combustion: Status and Research Needs

Precursor engineering of hydrotalcite-derived redox sorbents for reversible and stable thermochemical oxygen storage

Contact Info

Product

Resources

About