Hydrogenation reaction device

Abstract

The invention discloses a hydrogenation reaction device and belongs to the field of chemical equipment. The device comprises a raw material dissolving kettle, a circulating pump, a preheater and a hydrogenation filter, wherein the bottom of the raw material dissolving kettle is sequentially connected with the bottom of the hydrogenation filter and the circulating pump; the other end of the circulating pump is connected with the preheater, and the preheater is connected with the top of the hydrogenation filter through a pipeline; the hydrogenation filter is composed of a jet-loop reactor, a hydrogen tube and a filter; the hydrogenation filter is tower type and is sequentially divided into a hydrogenation reaction region and a filter region from bottom to top internally, respectively; the two regions are connected and communicated with each other by virtue of flanges; in the hydrogenation reaction region, the hydrogen tube is connected with the jet-loop reactor which is fixedly arranged at the top of the tower and is connected with the preheater through a pipeline; various inlet-outlet pipes connected with the circulating pump are provided with control valves. The hydrogenation reaction device disclosed by the invention fully carries out hydrogenation, is high in yield, and does not need to recycle escaped hydrogen. In particular in an application of hydrogenation production of hydrogenated bisphenol A by bisphenol A, the hydrogenation reaction device is energy-saving, high in work efficiency and stable in product quality.

Description

technical field [0001] The invention belongs to the field of chemical equipment, and relates to a solid chemical product production device, in particular to a hydrogenation reaction device. Background technique [0002] Hydrogenated bisphenol A is an important chemical product, which is widely used in resin, plastic, rubber, coating and other fields. The production of hydrogenated bisphenol A is prepared by hydrogenating bisphenol A, so the hydrogenation unit is a very important operation unit. [0003] The traditional hydrogenation unit uses a stirred tank or bubble column reactor with a bubble tube. This type of equipment needs to recirculate and bubble the unreacted hydrogen escaping from the liquid surface with a hydrogen pump. It is also necessary to pump the reacted materials to the filter for filtration, resulting in high energy consumption, large equipment investment, and large floor space. At present, there are few domestic manufacturers of bisphenol A, mainly beca...

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Problems solved by technology

[0003] The traditional hydrogenation unit uses a stirred tank or bubble column reactor with a bubble tube. This type of equipment needs to recirculate and bubble the unreacted hydrogen escaping from the liquid surface with a hydrogen pump. It is also necessary to pump the reacted materials to the filter for filtration, resulting in high energy consumption, large equipment investment, and large floor space. At present, there are few domestic manufacturers of bisphenol A, mainly because of the low yield of the hydrogenation section. , the energy consumption of filtration is high, resulting in high production cost, unstable quality, and large-scale production cannot be formed. Therefore, the research and development of a hydrogenation device for hydrogenating bisphenol A is an urgent demand in the current market

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