Adsorption desulfurization processes employing zeolites as sorbents are considered to be prospective desulfurization methods owing to their cost-effectiveness.

Y zeolites modified with Cu and Ce have excellent adsorption capacity and selectivity for adsorption desulfurization. However, the effect of using different metal precursors on the active sites of these sorbents and their adsorption desulfurization performance still remains ambiguous, which impedes the development of improved desulfurization adsorbents. Herein, Cu(NO₃)₂, Cu(Ac)₂, and CuSO₄ were selected as Cu precursors to prepare a series of CuCeY from CeY zeolite. Desulfurization experimental results indicate that outstanding breakthrough adsorption capacities for thiophene (ca. 6.25 mg·g⁻¹) with benzene as the solvent were achieved by the CuCeY_A. The interaction between the CuCe metals was beneficial for enhancing the electron transfer between Cu²⁺+Ce³⁺/Ce⁴⁺+Cu⁺. Moreover, using different copper precursors significantly changed the redox ability of the adsorbent surface. Changing the copper precursor also had a significant effect on the locations of Cu and Ce ions, and using Cu(Ac)₂ as a metal precursor facilitated the migration of Cu⁺ (53.6%) and cerium species (35.9%) to the supercage. In situ infrared characterization showed that the oligomerization of thiophene on CuCeY_A was significantly restricted due to the lowest B acid content (11.85%) in the CuCeY_A.

采用沸石作为吸附剂的吸附脱硫工艺因其成本效益而被认为是有前景的脱硫方法。

Cu、Ce改性的Y沸石具有优异的吸附容量和吸附脱硫选择性。然而，使用不同金属前体对这些吸附剂活性位点的影响及其吸附脱硫性能仍然不明确，这阻碍了改进脱硫吸附剂的开发。本文选择Cu(NO ₃ ) ₂、Cu(Ac) ₂和CuSO ₄作为Cu前驱体，由CeY沸石制备了一系列CuCeY。脱硫实验结果表明，CuCeY _{A对以苯为溶剂的噻吩（约6.25 mg·g} ^-1 ）具有突破性的吸附能力。Cu 之间的相互作用^{Ce金属有利于增强Cu 2+} +Ce ³⁺ /Ce ⁴⁺ +Cu ⁺之间的电子传递。此外，使用不同的铜前体显着改变了吸附剂表面的氧化还原能力。改变铜前体对Cu和Ce离子的位置也有显着影响，并且使用Cu(Ac) ₂作为金属前体促进了Cu ⁺ (53.6%)和铈物质(35.9%)迁移到超级笼。原位红外表征表明，由于CuCeY _{A中B酸含量最低（11.85%），噻吩在CuCeY A}上的齐聚受到显着限制。