煅烧-碳化热化学储能用钙、锶和碳酸钡混合物

SOLARPACES 2018: International Conference on Concentrating Solar Power and Chemical Energy Systems Pub Date : 2019-07-26 DOI:10.1063/1.5117751

Larissa Fedunik-Hofman, A. Bayon, S. Donne

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引用次数: 3

摘要

发现了一种新型的掺碱土碳酸盐的cao基吸附剂，作为热化学储能系统的高温储能材料，具有良好的性能。采用Pechini法合成吸附剂，并分别掺杂SrO、BaO和Ca3Al2O6。掺钡吸附剂在40次煅烧和碳化循环后仍保持60%以上的碳化转化率，而掺锶吸附剂在20次循环后仍保持40%以上的碳化转化率。这些高温(800°C以上)材料具有与高效和经济竞争的电力循环相结合的潜力。

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Calcium, strontium and barium carbonate mixtures for calcination-carbonation thermochemical energy storage

Novel CaO-based sorbents doped with alkaline earth carbonates were found to show good performance as high temperature energy storage materials for a thermochemical energy storage system. The sorbents were synthesised using the Pechini method and doped with SrO, BaO and Ca3Al2O6. A barium-doped sorbent retained a carbonation conversion capacity of over 60% over 40 calcination and carbonation cycles, while a strontium-doped sorbent retained a conversion of over 40% after 20 cycles. These high temperature (above 800°C) materials have the potential to be coupled with highly efficient and economically competitive power cycles.

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SOLARPACES 2018: International Conference on Concentrating Solar Power and Chemical Energy Systems

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