Tubular reactor is a kind of reactor composed of many thin tubes in series or parallel. It is a device suitable for the reaction of gases and liquids, liquids and liquids, and can also be used for diluting corrosive materials.
1. Since the molecules of the reactants remain in the reactor for equal periods of time, the concentration of the reactants and the rate of chemical reaction at any point in the reactor do not change with time, but only with the length of the tube.
2. The unit reactor volume of tubular reactor has a large heat exchange surface, especially suitable for reactions with large thermal effect.
3. Because the reactants in the tubular reactor reaction speed, fast flow rate, so its productivity is high.
4. The tubular reactor is suitable for large-scale and continuous chemical production.
5. Compared with the kettle reactor, its backmixing is smaller, and the fluid flow pattern in the tube is close to the ideal replacement flow at a low flow rate.
Product advantage
1. Simple and compact structure
2. High strength
3. Strong corrosion resistance
4. Good impact resistance
5. Long service life
6. Easy to repair
Scope of application
The tubular reactor is usually divided into multi-tube series tubular reactor and multi-tube associated tubular reactor according to the different connection modes of pipe.
Tubular reactors with multi-tube series structure are generally used for gas phase reaction and gas liquid phase reaction. Such as hydrocarbon cracking reaction and liquid phase oxidation of ethylene to acetaldehyde reaction.
Tubular reactors with multi-tube parallel structure are generally used for gas-solid reaction. For example, gaseous hydrogen chloride and acetylene react to produce vinyl chloride in a multi-tube connected solid phase catalyst, and gaseous nitrogen and hydrogen mixture synthesize ammonia in a multi-tube connected solid phase iron catalyst.
