Hydrogenation reaction vessel

Abstract

The invention discloses a hydrogenation reaction vessel. The hydrogenation reaction vessel comprises a reaction vessel main body; the reaction vessel main body is provided with a feeding pipeline anda discharge pipeline; the feeding pipeline is used for introduction of palm oil, and the discharge pipeline is used for discharging of hydrogenated oil; the upper end of the reaction vessel main bodyis provided with a stirring motor; the stirring motor is provided with a stirring shaft; the stirring shaft is designed to stretch to the bottom of the reaction vessel main body, and is of a hollow structure; the upper end of the stirring shaft is provided with a gas inlet hole; the stirring shaft is provided with hollow vane wheels which are communicated with the internal part of the stirring shaft; the hollow vane wheels are provided with gas outlets; the bottom of the stirring shaft is provided with a distributor; the distributor is communicated with the internal part of the stirring shaft;the lower end of the stirring shaft is connected with a hydrogen gas pipeline; and the hydrogen gas pipeline does not rotate with the stirring shaft. According to the hydrogenation reaction vessel, hydrogen gas is introduced into the stirring shaft through the bottom, and is distributed in oil phase using the distributor, at the same time, high speed rotation of the vane wheels is driven, upper hydrogen gas is inhalated through the gas inlets of the stirring shaft, and is distributed in oil phase through gas outlets of the vane wheels, so that reaction effect is ensured.

Description

technical field [0001] The invention relates to the technical field of cooling systems, in particular to a hydrogenation reactor. Background technique [0002] At present, customers have increasingly strict requirements on the iodine value of hardened oil, especially in the stearic acid market. Customers require the iodine value to be below 0.3I2 / 100g, and hydrogenation reaction is one of the main ways to reduce the iodine value. [0003] Domestic manufacturers using reactor hydrogenation, there are two ways to feed hydrogen into the reactor, one is to feed hydrogen into the bottom, the hydrogen consumption is relatively large in the initial stage of the reaction, the hydrogen pressure in the reactor is decreasing, and the hydrogen is continuously replenished from the bottom. , palm oil and the catalyst can be in good contact. At the end of the reaction, when the iodine price drops to a certain level, more hydrogen will be concentrated at the top of the kettle to achieve pre...

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Problems solved by technology

[0004] The reaction time of the first process is long (normally about 100 minutes), and the iodine value of the product is 0.4-0.6I2 / 100g; the reaction time of the second process is short (normally 60-80 minutes), and the iodine value of the product is 0.4 I2 / 100g, but the power of the material external circulation pump is large, the power consumption is high, and the iodine price of the product does not drop significantly

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