Highly Selective CO2 Conversion to Methanol in a Bifunctional Zeolite Catalytic Membrane Reactor,Angewandte Chemie International Edition

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Highly Selective CO2 Conversion to Methanol in a Bifunctional Zeolite Catalytic Membrane Reactor
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2021-06-10 , DOI: 10.1002/anie.202106277
Wenzhe Yue ₁ , Yanhong Li ₁ , Wan Wei ₂ , Jianwen Jiang ₂ , Jürgen Caro ₃ , Aisheng Huang ₁

Affiliation

The hydrogenation of sequestrated CO₂ to methanol can reduce CO₂ emission and establish a sustainable carbon circuit. However, the transformation of CO₂ into methanol is challenging because of the thermodynamic equilibrium limitation and the deactivation of catalysts by water. In the present work, different reactor types have been evaluated for CO₂ catalytic hydrogenation to methanol. Best results have been obtained in a bifunctional catalytic membrane reactor (CMR) based on a zeolite LTA membrane and a catalytic Cu-ZnO-Al₂O₃-ZrO₂ layer on top. Due to the in situ and rapid removal of the produced water from the catalytic layer through the hydrophilic zeolite LTA membrane, it is effective to break the thermodynamic equilibrium limitation, thus significantly increasing the CO₂ conversion (36.1 %) and methanol selectivity (100 %). Further, the catalyst deactivation by the produced water can be effectively inhibited, thus maintaining a high long-term activity of the CMR.

中文翻译：

在双功能沸石催化膜反应器中高选择性 CO2 转化为甲醇

封存的CO ₂加氢为甲醇可以减少CO ₂排放并建立可持续的碳循环。然而，由于热力学平衡限制和催化剂被水失活，将 CO ₂转化为甲醇具有挑战性。在目前的工作中，已对不同类型的反应器进行了 CO ₂催化加氢制甲醇的评估。在基于沸石 LTA 膜和催化 Cu-ZnO-Al ₂ O ₃ -ZrO ₂的双功能催化膜反应器 (CMR) 中获得了最佳结果层在上面。由于通过亲水性沸石 LTA 膜原位快速去除催化层中的产水，可以有效打破热力学平衡限制，从而显着提高 CO ₂转化率（36.1 %）和甲醇选择性（100 %））。此外，可以有效抑制采出水导致的催化剂失活，从而保持 CMR 的长期高活性。

更新日期：2021-08-03

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