Highly Selective CO2Conversion to Methanol in a Bifunctional Zeolite Catalytic Membrane Reactor

Autor:	Jianwen Jiang, Aisheng Huang, Wan Wei, Wenzhe Yue, Jürgen Caro, Yanhong Li
Rok vydání:	2021
Předmět:	Thermodynamic equilibrium chemistry.chemical_element General Medicine General Chemistry Catalysis chemistry.chemical_compound Membrane chemistry Chemical engineering Methanol Selectivity Bifunctional Zeolite Carbon
Zdroj:	Angewandte Chemie International Edition. 60:18289-18294
ISSN:	1521-3773 1433-7851
Popis:	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-Al2 O3 -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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3235bbfa86ea6b8132e99ce7faab1d6a https://doi.org/10.1002/anie.202106277 Zobrazit plný text záznamu Plný text