3. Two-phase fluid reactors

This term covers reactors in which either a gas phase and a liquid phase, or two immiscible liquid phases, are present.

• The first category includes numerous industrial applications, such as oxidation and hydrogenation in the liquid phase, or absorption of a gas by a liquid with chemical reaction. These include

  • amine treatment of natural gas to remove H ₂ S and CO ₂ ;

  • removal of CO ₂ from synthesis hydrogen by washing with soda or amines;

  • absorption of nitrous vapors during nitric acid production.

• Liquid-liquid systems involving...