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    • 7. 发明申请
    • CATALYST FOR SELECTIVE OXIDATIVE DESULFURIZATION AND PREPARATION METHOD THEREOF
    • 选择性氧化脱硫催化剂及其制备方法
    • WO2012036445A4
    • 2012-08-09
    • PCT/KR2011006750
    • 2011-09-09
    • KOREA RES INST CHEM TECHSK INNOVATION CO LTDKIM TAE WANJEONG KWANG EUNCHAE HO JEONGKIM CHUL UNGJEONG SOON YONGKIM GYUNG ROKOH SEUNG HOONRYU JAE WOOKKIM DO WOANKIM YONG WOON
    • KIM TAE WANJEONG KWANG EUNCHAE HO JEONGKIM CHUL UNGJEONG SOON YONGKIM GYUNG ROKOH SEUNG HOONRYU JAE WOOKKIM DO WOANKIM YONG WOON
    • B01J31/38B01J31/12B01J37/02C10G31/00
    • B01J29/89B01J21/063B01J21/08B01J21/12B01J29/0308B01J31/0274B01J37/0203B01J37/0209C10G27/04C10G2300/202
    • The present invention relates to a catalyst for selective oxidative desulfurization having a prolonged lifetime, and a preparation method thereof. More specifically, the present invention relates to a catalyst for selective oxidative desulfurization, and a preparation method thereof, wherein a catalyst for selective oxidative desulfurization in which the surface of a silica support is modified to be hydrophobic through silylation using an organic silane compound is further provided to a catalyst for selective oxidative desulfurization in which a predetermined amount of transition metals are supported in a silica support, thereby maximizing selective oxidative desulfurization performance to petroleum hydrocarbons having a high sulfur compound content and preventing sulfone compounds, by-products of selective oxidative desulfurization, from being deposited on the support of the catalyst to extend the lifetime of the catalyst to the maximum. In addition, the present invention relates to a method for preparing the catalyst for selective oxidative desulfurization, comprising: the first step of injecting in an organic solvent a transition metal precursor and a chelating agent for reaction thereof; the second step of injecting a support to an aqueous solution for mixture thereof; the third step of mixing and stirring the solutions prepared at the first and second steps; and the fourth step of drying and sintering the solution prepared at the third step. The catalyst prepared by the preparation method maintains a high catalytic activity and has an increased lifetime by preventing the formation and aggregation of large active metals showing a low reactivity in case of supporting an active metal component.
    • 本发明涉及延长寿命的选择性氧化脱硫催化剂及其制备方法。 更具体地说,本发明涉及用于选择性氧化脱硫的催化剂及其制备方法,其中使用有机硅烷化合物通过硅烷化将二氧化硅载体的表面改性为疏水性的选择性氧化脱硫用催化剂进一步 提供给用于选择性氧化脱硫的催化剂,其中将预定量的过渡金属负载在二氧化硅载体中,由此使对硫化合物含量高的石油烃的选择性氧化脱硫性能最大化并防止砜化合物,选择性氧化脱硫的副产物 沉积在催化剂的载体上以延长催化剂的寿命至最大值。 此外,本发明涉及一种制备用于选择性氧化脱硫的催化剂的方法,其包括:第一步将有机溶剂注入过渡金属前体和螯合剂以进行反应; 将载体注入水溶液中混合的第二步骤; 混合并搅拌在第一步和第二步制备的溶液的第三步; 和第四步,将第三步制备的溶液干燥并烧结。 通过该制备方法制备的催化剂通过防止负载活性金属组分时显示低反应性的大活性金属的形成和聚集而保持高催化活性并具有增加的寿命。