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首页> 外文期刊>Journal of Materials Science >SBA-15 modified with Al, Ti, or Zr as supports for highly active NiW catalysts for HDS
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SBA-15 modified with Al, Ti, or Zr as supports for highly active NiW catalysts for HDS

机译：用Al，Ti或Zr改性的SBA-15作为高活性NiW催化剂的载体，用于HDS

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摘要

A series of SBA-15-type materials modified with Al, Ti, and Zr were prepared and used as supports for hydrodesulfurization (HDS) catalysts based on NiW. Prepared supports and catalysts were characterized by N-2 physisorption, small- and wide-angle XRD, UV-Vis DRS, FT-IR, IEP, TPR, TPD, HRTEM, and SEM-EDX. Sulfided catalysts were evaluated in HDS of dibenzothiophene (DBT). Catalytic activity tests show that the creation of defined anchoring points for the W species by modifying the surface of SBA-15 with Al, Ti, and Zr results in a considerable improvement in catalysts' performance compared to pure SBA-supported analog. The possible reasons for this behavior are discussed.
机译：制备了一系列用Al，Ti和Zr改性的SBA-15型材料，并将其用作基于NiW的加氢脱硫（HDS）催化剂的载体。制备的载体和催化剂的特征在于N-2物理吸附，小和广角XRD，UV-Vis DRS，FT-IR，IEP，TPR，TPD，HRTEM和SEM-EDX。在二苯并噻吩（DBT）的HDS中评估了硫化的催化剂。催化活性测试表明，与纯SBA负载的类似物相比，通过用Al，Ti和Zr修饰SBA-15的表面为W物种创建定义的锚定点会大大提高催化剂的性能。讨论了此行为的可能原因。

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