A magnetically stabilized bed (MSB) reactor for selective hydrogenation of olefins in reformate was developed by combining the advantages of MSB and amorphous nickel alloy catalyst. The effects of operating conditio...A magnetically stabilized bed (MSB) reactor for selective hydrogenation of olefins in reformate was developed by combining the advantages of MSB and amorphous nickel alloy catalyst. The effects of operating conditions, such as temperature, pressure, liquid space velocity, hydrogen-to-oil ratio, and magnetic field intensity on the reaction were studied. A mathematical model of MSB reactor for hydrogenation of olefins in reformate was established. A reforming flow scheme with a post-hydrogenation MSB reactor was proposed. Finally, MSB hydrogenation was compared with clay treatment and conventional post-hydrogenation.展开更多
The hydrodynamic characteristics of liquid-fluidized magnetically stabilized beds (MSB) with commercial amorphous nickel alloy catalyst (SRNA-4) as solid phase and water as liquid phase in a cold model experimental ap...The hydrodynamic characteristics of liquid-fluidized magnetically stabilized beds (MSB) with commercial amorphous nickel alloy catalyst (SRNA-4) as solid phase and water as liquid phase in a cold model experimental apparatus of Φ140mm were investigated. The influence of magnetic field intensity on bed structure, pressure drop, minimum fluidization velocity, transition velocity, and liquid holdup were investigated. Mathematical models for minimum fluidization velocity, transition velocity, liquid holdup were established respectively. The operating phase diagrams of liquid-fluidized MSB with SRNA-4 catalyst of two different sizes were obtained.展开更多
The characteristics of magnetically stabilized bed(MSB)were studied in a three-phase system with nitrogen,water and iron powder(and/or Ni-RE-P amorphous alloy catalyst)as gas,liquid and solid phase respectively.The op...The characteristics of magnetically stabilized bed(MSB)were studied in a three-phase system with nitrogen,water and iron powder(and/or Ni-RE-P amorphous alloy catalyst)as gas,liquid and solid phase respectively.The operating state was observed,and the effect of magnetic field and superficial velocity of gas on minimum fluidization velocity were examined.Finally,the MSB using mixture of iron powder and Ni-RE-P amorphous alloy catalyst as solid phase was studied.展开更多
文摘A magnetically stabilized bed (MSB) reactor for selective hydrogenation of olefins in reformate was developed by combining the advantages of MSB and amorphous nickel alloy catalyst. The effects of operating conditions, such as temperature, pressure, liquid space velocity, hydrogen-to-oil ratio, and magnetic field intensity on the reaction were studied. A mathematical model of MSB reactor for hydrogenation of olefins in reformate was established. A reforming flow scheme with a post-hydrogenation MSB reactor was proposed. Finally, MSB hydrogenation was compared with clay treatment and conventional post-hydrogenation.
文摘The hydrodynamic characteristics of liquid-fluidized magnetically stabilized beds (MSB) with commercial amorphous nickel alloy catalyst (SRNA-4) as solid phase and water as liquid phase in a cold model experimental apparatus of Φ140mm were investigated. The influence of magnetic field intensity on bed structure, pressure drop, minimum fluidization velocity, transition velocity, and liquid holdup were investigated. Mathematical models for minimum fluidization velocity, transition velocity, liquid holdup were established respectively. The operating phase diagrams of liquid-fluidized MSB with SRNA-4 catalyst of two different sizes were obtained.
文摘The characteristics of magnetically stabilized bed(MSB)were studied in a three-phase system with nitrogen,water and iron powder(and/or Ni-RE-P amorphous alloy catalyst)as gas,liquid and solid phase respectively.The operating state was observed,and the effect of magnetic field and superficial velocity of gas on minimum fluidization velocity were examined.Finally,the MSB using mixture of iron powder and Ni-RE-P amorphous alloy catalyst as solid phase was studied.