Hydrogenation reactors are widely used in various gas-liquid-solid three-phase catalytic reduction hydrogenation reactions, especially in the fields of sorbitol polyols, aromatic nitration, oils, fine chemicals, pharmaceuticals, pharmaceutical intermediates, dyes, etc. . Due to the existence of multi-phase mass transfer, including hydrogen dispersion, solid suspension, gas-liquid-solid mixing, etc., stirring and mixing are crucial during the reaction process.
Technical Parameters
Working Volume:5/10/20/50/100/200/500/1000L/2000L/3000L/5000L/6000L/8000L/10000L
/15000L/20000L/30000L, or based on custom requirements.
Design temperature: 0~350℃, or customized
Design pressure: 0~15MPa, or customized
Kettle body material: Commonly used materials in contact with materials include S31603, S30408, S32168 and non-ferrous metals such as Hastelloy and nickel.
It can be designed and manufactured according to the user's different parameters such as temperature, pressure, and materials.
Stirring motor speed: above 250 rpm;
Motor: Equipped with explosion-proof motor, explosion-proof grade DIICT4;
Sealing: Magnetic coupling seal, high leakage resistance;
Heating and cooling method: jacket or semi-coil circulation heating, inner coil cooling;
Discharging method: upper pressure discharging by default, lower discharging can also be used;
Mixing paddle: A variety of paddle types can be selected according to the different properties of the process objects, such as propeller type, paddle type, anchor type, turbine type, self-priming type, etc.
Measures to accelerate the mixing of hydrogen: Generally speaking, the high-pressure hydrogenation reactor is a three-phase mixture of solid, liquid and gas. Whether the hydrogen is mixed uniformly is the key to the success of the reaction. In order to accelerate the mixing of hydrogen, the following three measures are generally used:
1. The general structure of the hydrogenation reactor is that the lower part of the kettle is equipped with a gas distributor, and the hydrogen is fully mixed with the materials from the bottom up through the gas distributor;
2. Equipped with a high-efficiency self-priming stirring paddle. The stirring paddle rotates at high speed to form a vacuum zone around it. The hydrogen at the top of the reactor body is sucked into the material through the hollow shaft and the self-priming paddle under the action of the pressure difference. The high-speed rotating hydrogen is thrown to the inside of the material. Bubbles are formed inside the material to achieve full mixing;
3. Increase the stirring motor speed.
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