The EU-FP7 Project SUCCESS – Scale-up of Oxygen Carrier for Chemical Looping Combustion using Environmentally Sustainable Materials

Penthor, Stefan; Mattisson, Tobias; Adánez, Juan; Bertolin, Stéphane; Masi, Enrica; Larring, Yngve; Langørgen, Øyvind; Ströhle, Jochen; Snijkers, Frans; Geerts, Lieve; Albertsen, Knuth; Williams, Gareth; Bertsch, Otmar; Authier, Olivier; Dávila, Ytalo; Yazdanpanah, Mahdi; Pröll, Tobias; Lyngfelt, Anders; Hofbauer, Hermann

doi:10.1016/j.egypro.2017.03.1181

Cited by 21 publications

(14 citation statements)

References 15 publications

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“…CaMnO 3 does not have to be pure; part of the operation reported has been performed with calcium manganite made from impure raw materials, and various additives, Fe, Mg, Ti, etc., are often used. Manufacture of calcium manganate from low-cost manganese ore and lime was demonstrated in the EU project SUCCESS. , Although there is an extra cost for producing calcium manganite compared to natural ores often used for solid fuels, this might be motivated, given the improvement in gas conversion, reducing or even eliminating downstream costs for oxygen polishing to remove combustibles from the CO 2 stream.…”

Section: Co2 Capture State Of the Artmentioning

confidence: 96%

Achieving Adequate Circulation in Chemical Looping Combustion─Design Proposal for a 200 MW_th Chemical Looping Combustion Circulating Fluidized Bed Boiler

et al. 2022

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Chemical looping combustion (CLC) has unique potential for avoiding the large costs and energy penalties of existing CO 2 capture technologies. Oxygen is transferred to the fuel using an oxygen carrier, thus avoiding contact between air and fuel. Consequently, the combustion products, CO 2 and H 2 O, come in a separate stream, and more or less pure CO 2 is obtained after condensation of H 2 O. CLC is normally conceived as a dual fluidized bed process, with high gas velocities in an air reactor driving the circulation, similar to circulating fluidized beds (CFBs), except that the material is led to a fuel reactor before being returned to the air reactor. Crucial for the process is the properties of the oxygen carrier and that circulation is sufficient to transfer needed oxygen and heat to the fuel reactor. Comprehensive literature shows successful use of many oxygen carriers in sustained pilot operation. In contrast, the need for reaching adequate circulation in an industrial-scale system has been given little consideration. Normally, a system similar to CFB boilers is assumed to give sufficient circulation. However, literature data indicate that circulation in CFB boilers is 5−50% of what is needed. Measures to provide sufficient circulation may cause difficulties, such as erosion or bed material loss in the cyclone. Here, a circulation system based on collection of the downflow of particles along the walls is proposed, and a design of a 200 MW th combined CLC−CFB boiler based on this principle is presented. Further, operational strategies and the need for flexibility are discussed. The design is focused on making an industrial-scale demonstration boiler, which can be used in CLC operation with different oxygen carriers and different fuels and that can explore different operational strategies to find optimal conditions. It is recommended that the upscaling of the technology aims directly at the industrial scale.

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Section: Co2 Capture State Of the Artmentioning

confidence: 96%

Achieving Adequate Circulation in Chemical Looping Combustion─Design Proposal for a 200 MW_th Chemical Looping Combustion Circulating Fluidized Bed Boiler

et al. 2022

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“…Ultimately, experiments on a pilot scale, i.e., in a continuous reactor with nominal fuel input of 1 MW, were conducted . A project overview is given by Penthor et al…”

Section: Introductionmentioning

confidence: 99%

Oxygen‐Carrier Development of Calcium Manganite–Based Materials with Perovskite Structure for Chemical‐Looping Combustion of Methane

et al. 2020

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The present work is related to the upscaling of calcium manganite–based oxygen‐carrier materials, which have a perovskite structure, both with respect to the use of inexpensive raw materials, i.e., instead of pure chemicals, and the upscaling of production to multitonne batches. Results are presented from the two different stages of material development, i.e., raw material selection and upscaling. The evaluation involves both operation in chemical‐looping combustor units of 300 W and 10 kW, and material characterization. In the latter unit, the gas velocities in the riser and in the grid‐jet zone of the gas distributor come close to gas velocities of industrial‐scale units and, therefore, this unit is also used to assess particle lifetime. Results from the various chemical‐looping combustion units and oxygen‐carrier materials produced from various raw materials of both high and low purity show that very high degrees of fuel conversion can be reached while achieving very high oxygen‐carrier lifetimes. The composition of the oxygen‐carrier materials seems robust and flexible with respect to the precursors used in its manufacturing.

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“…To maximize the economic and environmental benefits of CLPOX (or CLPOX-H 2 ), a pressurized operation is required to improve the overall process efficiency and simplify its integration with downstream GTL processes. Chemical looping-based processes have been investigated at larger scales using interconnected circulating fluidized beds (CFB). , Although the CFB configuration has been demonstrated at the lab − and pilot − scales for several chemical looping processes, pressurizing this configuration (Figure a) could be difficult for this application considering that each reactor needs to be pressurized individually with the need for precise control of the circulation of the oxygen carriers to fulfill the heat and mass balances of the process; only a few studies are reported on pressurized chemical looping using the interconnected fluidized bed configuration . The challenges magnify in three-steps processes such as CLPOX-H 2 , which would require three interconnected reactors with an oxygen carrier circulating between them.…”

Section: Introductionmentioning

confidence: 99%

Combined Syngas and Hydrogen Production using Gas Switching Technology

Ugwu

Zaabout

Donat

et al. 2021

Ind. Eng. Chem. Res.

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This paper focuses on the experimental demonstration of a three-stage GST (gas switching technology) process (fuel, steam/CO 2 , and air stages) for syngas production from methane in the fuel stage and H 2 /CO production in the steam/CO 2 stage using a lanthanum-based oxygen carrier (La 0.85 Sr 0.15 Fe 0.95 Al 0.05 O 3 ). Experiments were performed at temperatures between 750–950 °C and pressures up to 5 bar. The results show that the oxygen carrier exhibits high selectivity to oxidizing methane to syngas at the fuel stage with improved process performance with increasing temperature although carbon deposition could not be avoided. Co-feeding CO 2 with CH 4 at the fuel stage reduced carbon deposition significantly, thus reducing the syngas H 2 /CO molar ratio from 3.75 to 1 (at CO 2 /CH 4 ratio of 1 at 950 °C and 1 bar). The reduced carbon deposition has maximized the purity of the H 2 produced in the consecutive steam stage thus increasing the process attractiveness for the combined production of syngas and pure hydrogen. Interestingly, the cofeeding of CO 2 with CH 4 at the fuel stage showed a stable syngas production over 12 hours continuously and maintained the H 2 /CO ratio at almost unity, suggesting that the oxygen carrier was exposed to simultaneous partial oxidation of CH 4 with the lattice oxygen which was restored instantly by the incoming CO 2 . Furthermore, the addition of steam to the fuel stage could tune up the H 2 /CO ratio beyond 3 without carbon deposition at H 2 O/CH 4 ratio of 1 at 950 °C and 1 bar; making the syngas from gas switching partial oxidation suitable for different downstream processes, for example, gas-to-liquid processes. The process was also demonstrated at higher pressures with over 70% fuel conversion achieved at 5 bar and 950 °C.

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The EU-FP7 Project SUCCESS – Scale-up of Oxygen Carrier for Chemical Looping Combustion using Environmentally Sustainable Materials

Cited by 21 publications

References 15 publications

Achieving Adequate Circulation in Chemical Looping Combustion─Design Proposal for a 200 MW_th Chemical Looping Combustion Circulating Fluidized Bed Boiler

Achieving Adequate Circulation in Chemical Looping Combustion─Design Proposal for a 200 MW_th Chemical Looping Combustion Circulating Fluidized Bed Boiler

Oxygen‐Carrier Development of Calcium Manganite–Based Materials with Perovskite Structure for Chemical‐Looping Combustion of Methane

Combined Syngas and Hydrogen Production using Gas Switching Technology

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The EU-FP7 Project SUCCESS – Scale-up of Oxygen Carrier for Chemical Looping Combustion using Environmentally Sustainable Materials

Cited by 21 publications

References 15 publications

Achieving Adequate Circulation in Chemical Looping Combustion─Design Proposal for a 200 MWth Chemical Looping Combustion Circulating Fluidized Bed Boiler

Achieving Adequate Circulation in Chemical Looping Combustion─Design Proposal for a 200 MWth Chemical Looping Combustion Circulating Fluidized Bed Boiler

Oxygen‐Carrier Development of Calcium Manganite–Based Materials with Perovskite Structure for Chemical‐Looping Combustion of Methane

Combined Syngas and Hydrogen Production using Gas Switching Technology

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Product

Resources

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Achieving Adequate Circulation in Chemical Looping Combustion─Design Proposal for a 200 MW_th Chemical Looping Combustion Circulating Fluidized Bed Boiler

Achieving Adequate Circulation in Chemical Looping Combustion─Design Proposal for a 200 MW_th Chemical Looping Combustion Circulating Fluidized Bed Boiler