磷化钼的常压制备及脱硫活性

Preparation of supported MoP under atmospheric pressure and its performance in HDS

提出了磷化钼常压制备工艺,包括溶胶-凝胶法制备负载型磷化钼催化剂前体及在常压下以氢氮混合气为还原剂的催化剂前体还原。研究结果表明:磷化钼常压制备工艺可行;担载量为25%、磷钼比为1:1、焙烧温度为500℃、氢氮比为1:9、还原气空速为2400h-1、还原终温为550℃时催化剂比表面积最大,可达122.336m2/g;以噻吩为模型化合物考察磷化钼催化剂的催化活性,噻吩转化率可达89.17%。

Supported phosphorized molybdenum catalyst precursor was prepared by the sol-gel method, and reduced under atmospheric pressure by hydrogen nitrogen mixture for the first time. The results indicated thapreparation of the supported phosphorized molybdenum under atmospheric pressure was feasible. The relative surface area was 122.336 m^2/g, when the MoP loading was 25%, phosphorus molybdenum ratio was 1：1, roasting temperature was 500 ℃, hydrogen nitrogen ratio was 1：9, reducing gas space velocity was 2400 h^-1, reduction temperature was 550℃. Take thiophene as the model compound to investigate MoP catalytic activity, thiophene conversion rate might reach 89.17%.