Perspective on Sorption Enhanced Bifunctional Catalysts to Produce Hydrocarbons
Perspective on Sorption Enhanced Bifunctional Catalysts to Produce Hydrocarbons
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DOI：
10.1021/acscatal.2c01646
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发表时间：
2022-06-09
期刊：
影响因子：
12.9
通讯作者：
Gilliard-AbdulAziz, Kandis Leslie
中科院分区：
文献类型：
--
作者：
Jo, Seongbin;Cruz, Luz;Gilliard-AbdulAziz, Kandis Leslie
吸附增强型催化剂是由固定在固体吸附剂上的非均相催化剂组成的双功能材料，具有在同一反应器中选择性捕获CO2并将其直接转化为增值燃料和化学品的组合能力。直接从空气或烟道气中容易分离CO2并转化为化学商品的好处对开发综合碳捕获和利用方案具有吸引力。这一领域的增长正在迅速扩大，催化，材料设计和生命周期分析研究人员的兴趣。然而，吸附增强型催化剂的前景受到其降低的热稳定性、CO2捕集能力和受限于C-1烃的产物流的限制。主要问题是，用于捕获CO2、吸附剂再生和利用的反应条件可能大不相同。优化吸附剂载体材料和所用非均相催化剂的性质仍然是一个挑战。本文综述了固体吸附剂、非均相催化剂和复合吸附剂增强的CO2制烃催化剂的性能。最后，展望讨论了提高吸附增强型催化剂的性能和捕获效率的挑战和未来领域。
Sorption-enhanced catalysts are bifunctional materials consisting of a heterogeneous catalyst affixed to a solid sorbent with a combined capacity to selectively capture and convert CO2 directly to value-added fuels and chemicals in the same reactor. The benefits of facile separation of CO2, directly from air or from flue gas, and conversion to chemical commodities is appealing for developing an integrated carbon capture and utilization scheme. The growth of this area is rapidly expanding with interest from catalysis, materials design, and life-cycle analysis researchers. However, the promise of sorption-enhanced catalysts is limited by their reduced thermal stability, CO2 capture capacity, and restricted product streams to C-1 hydrocarbons. The prime issue is that the reaction conditions for the capture of CO2, regeneration of the sorbent, and utilization can be vastly different. It remains a challenge to optimize both the properties of the sorbent support material and the heterogeneous catalyst used. This perspective summarizes the current state-of-the-art for the properties of solid sorbents, heterogeneous catalysts, and the combined sorbent-enhanced catalysts for producing hydrocarbons from CO2. Lastly, the perspective discusses challenges and future areas for improving the performance and capture efficiency of sorption-enhanced catalysts.