A kind of reaction heat extraction method of hydroformylation synthesizer

Abstract

The invention discloses a heat extraction method for a hydrogen low-pressure formylation synthesis reactor, and in particular relates to a safe, energy-saving and easy-to-adjust external circulation heat extraction device, a heat extraction system and a heat extraction method. Said includes 1#, 2# hydroformylation synthesis reactor, 1# hydroformylation reaction cooler, 1# hydroformylation reaction circulation pump, desalination water tank, desalination water circulation pump, desalination water cooler, etc. Matching pipeline system. The 1# reactor of the method has a large heat release, and the external circulating water is used to obtain heat, and the cooling effect is good; the 2# reactor adopts an internal coil to obtain heat, and a stable closed desalinated water cooling system is established in the coil, which is not affected by cooling water. , ambient temperature and other factors, to achieve the stability of the reactor temperature, and then to achieve the stability of the reactor pressure; the independent cooling system will not damage the expensive catalyst system in the case of equipment (heat exchanger) leakage, and will not affect the process The system is affected; the cooling medium temperature is low, the cooling effect is good, the required external circulation flow is small, and the external circulation pump, external circulation cooler and corresponding pipeline construction investment are less; the control effect is obvious, and the control is simple and stable.

Description

Technical field: [0001] The invention belongs to a heat extraction method for a low-pressure hydroformylation synthesis reactor, and in particular relates to a safe, energy-saving and easy-to-adjust external circulation heat extraction device, a heat extraction system and a heat extraction method. Background technique: [0002] The hydroformylation reaction is a reaction process in which olefins, carbon monoxide and hydrogen are acted on by catalysts, and hydrogen atoms and formyl groups are simultaneously added to the double bonds of olefins to generate two isomeric aldehydes with one more carbon atom than the original olefins. [0003] The hydroformylation reaction is a strongly exothermic reaction, and the heat of reaction is about 125kJ / mol. The heat removal during the reaction is very important. The industrial hydroformylation synthesis process is carried out in two continuous tank reactors made of stainless steel, and the reaction heat is usually removed in the followi...

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Problems solved by technology

The above heat extraction methods are not very effective, consume a lot of circulating water, and the leakage of the heat exchanger will destroy the entire catalyst system, resulting in a large loss of equipment.

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