High Pressure Hydrogenation Reactor

The High Pressure Hydrogenation Reactor LEHPHR is an industrial stirred pressure vessel for three-phase hydrogenation: a solid catalyst held in slurry, the liquid reactant, and hydrogen as the gas phase. The reference model covers 1000 to 3000 liters total volume at a design pressure of 90 bar and design temperatures up to 300 °C. Vessel material is SS304 or SS316 as standard, with solid or clad SS2205, SS321, C-276, nickel, titanium and zirconium for corrosive service.

How it works

The rate of a slurry hydrogenation is limited by mass transfer across the gas-liquid boundary, so the mixing system sets the gas-liquid mass transfer coefficient. The LEHPHR uses a hollow shaft with a gas induction impeller. Unused hydrogen from the headspace is drawn back down the shaft and redispersed as fine bubbles, which raises gas hold-up, enlarges the gas-liquid interfacial area and keeps the catalyst in uniform suspension. Baffles, spargers and a gas distributor are fitted as internals.

The agitator is driven through a zero-leakage magnetic coupling, so no shaft seal crosses the pressure boundary. Heating is by oil jacket of conventional, limpet coil or half-pipe form. Cooling is by internal spiral coils or a cooling tube condenser. The motor is explosion-proof, DIICT4, 7.5 to 90 kW, and stirring speed is 0 to 350 rpm. The head is sealed with a spiral wound metallic gasket. Head geometry (semi-elliptical, dished, hemispherical or flat), dimpled jackets and explosive clad construction are project options.

What is included

• Pressure vessel with heating jacket
• Magnetic drive agitator with hollow shaft and gas induction impeller
• Explosion-proof motor
• Internal fittings: temperature measuring tube, sensor, dip tube, baffles, cooling coils, gas distributor

Specify for your project

• Total volume and batch size
• Design pressure and temperature
• Vessel and wetted material, solid or clad
• Jacket type and heating and cooling duty
• Motor rating and hazardous area classification
• Internals: coils, dip tube, baffles, gas distributor

This description defines the product family. Guaranteed performance, included hardware, exclusions, interfaces and acceptance criteria are stated only in the project-specific technical proposal and approved datasheet.

Features

Gas Induction Tech.

• Higher gas Hold-up & mass transfer
• Fine dispersion of the hydrogen
• Large Gas-Liquid interfacial area
• Recirculation of the unused gas
• Uniform suspension of solid components (e.g., Catalyst)

Magnetic Couplings Driver

• 100% Sealing. Zero leakage. Low energy cost.
• Various model for volume: 100ml~50m3
• Long using life of bearings, less maintenance times
• Full vaccum/200 bar available;
• Cooling jacket set for high temperature application.

Internal Fittings Optional

• Internal heating/Cooling coils: Tube type or spiral coils;
• Dip tube & temperature measure tube;
• Shaft, Couplings & combined stirring paddle impeller;
• Gas distributor. spargers & baffles

Optional for Pressure Vessel

• Full Jacket/ Half-pipe jackets/ Dimpled jackets；
• Head type:Semi-elliptical/ Dished/ Hemispherical/ Flat；
• Explosive Clad Steel for anti-corrosion high pressure conditions.

Specifications