Ordered mesoporous Cu-ZnO-Al2O3 adsorbents for reactive adsorption desulfurization with enhanced sulfur saturation capacity

doi:10.1016/S1872-2067(18)63085-2

Chinese Journal of Catalysis ›› 2018, Vol. 39 ›› Issue (9): 1543-1551.DOI: 10.1016/S1872-2067(18)63085-2

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Ordered mesoporous Cu-ZnO-Al₂O₃ adsorbents for reactive adsorption desulfurization with enhanced sulfur saturation capacity

Yaqing Liu^a, Yuan Pan^b, Hongying Wang^a, Yunqi Liu^a, Chenguang Liu^a

a State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corporation(CNPC), China University of Petroleum(East China), Qingdao 266580, Shandong, China;
b Department of Chemistry, Tsinghua University, Beijing 100084, China

Received:2018-03-10 Revised:2018-04-16 Online:2018-09-18 Published:2018-07-19
Contact: 10.1016/S1872-2067(18)63085-2
Supported by:
This work was support by the National Natural Science Foundation of China (21676300).

Abstract

Abstract:

To enhance sulfur adsorption and reactive activity, ordered mesoporous Cu-ZnO-Al₂O₃ adsorbents were prepared by a novel one-pot evaporation-induced self-assembly strategy using P123 as a structure-directing agent and ethanol as the solvent for reactive adsorption desulfurization. The metal oxide precursor molecules around P123 micellized, and self-assembly simultaneously occurred during evaporation from an ethanol solution at 60℃, leading to the formation of the p6mm hexagonal symmetry mesoporous structure. Characterization results prove that the Cu-ZnO-Al₂O₃ adsorbents possess an ordered mesoporous structure with high thermal stability, large surface area (386-226 m²/g), large pore volume (0.60-0.46 cm³/g), and good dispersion of ZnO and Cu, which is beneficial for transforming S-compounds to ZnO. The sulfur saturation capacity of the ordered-mesoporous-structure Cu-ZnO-Al₂O₃ adsorbents is larger (49.4 mg/g) than that of the unordered mesoporous structure (13.5 mg/g).

Key words: Cu-ZnO-Al₂O₃, Ordered mesoporous structure, One-pot evaporation-induced self-assembly, Reactive adsorption desulfurization, Sulfur saturation capacity

Yaqing Liu, Yuan Pan, Hongying Wang, Yunqi Liu, Chenguang Liu. Ordered mesoporous Cu-ZnO-Al₂O₃ adsorbents for reactive adsorption desulfurization with enhanced sulfur saturation capacity[J]. Chinese Journal of Catalysis, 2018, 39(9): 1543-1551.

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Ordered mesoporous Cu-ZnO-Al₂O₃ adsorbents for reactive adsorption desulfurization with enhanced sulfur saturation capacity

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