| 摘要 |
FIELD: chemistry.SUBSTANCE: claimed invention relates to method of selective oxidative dehydrogenation of gas mixture, containing hydrogen and CO. Method includes application of gas mixture, containing hydrogen and CO, as raw material and passing said raw material through catalyst layer, which has gradually increasing gradient of activity in reactor with mole ratio of oxygen to hydrogen in raw material from 0.5 to 5:1 at temperature of reaction from 100 to 300°C, volume rate from 100 to 10000 hand reaction pressure from -0.08 to 5.0 MPa. Hydrogen in reaction effluent is oxidised to water, with catalyst layer being located in reactor with complex layer and containing catalyst I and catalyst II, which contain at least one active component, selected from platinum group metals, and can arbitrary contain additional alloying metals, such as Ba, Fe, Zn, lanthanides, Li and/or Mn, with amount of active component in catalyst I being less than amount of active component in catalyst II, and ratio of catalyst I to catalyst II lying in range from 0.1 to 5:1, preferably from 0.1 to 3:1.EFFECT: carrying out selective oxidative dehydrogenation of gas mixture, containing hydrogen and CO in order to prepare oxalate with low loss of CO and high degree of hydrogen removal.9 cl, 21 ex |
