Fluidized bed reactor, application thereof and hydrocarbon oil desulfurization method

Abstract

The invention discloses a fluidized bed reactor and application thereof, and a hydrocarbon oil desulfurization method. The fluidized bed reactor comprises a reaction section (3) at the lower portion and a settling section at the upper portion, wherein the settling section is divided into a settling section upper space and a settling section lower space by a separation component (14), the separation component (14) is composed of a cone-like body and a discharging pipe (17), the cone skirt edge on the top is seamlessly connected with the reactor wall, a fluid guide structure (9) is arranged in the settling section upper space, penetrates through the separation component (14) through a conveying pipe (8) and is opened in the settling section upper space, the bottom of the discharging pipe (17) of the separation component (14) is opened in the reaction section (3), and a gas outlet is formed in the top of the settling section upper space through a filter. According to the fluidized bed reactor provided by the invention, separated catalyst fine powder particles can be timely conveyed to the dense-phase bed layer of a reactor, so that the suspension amount of the catalyst particles in the settling zone of the fluidized bed reactor is remarkably reduced, and the operation period of the device is prolonged.

Description

technical field [0001] The invention relates to a fluidized bed reactor in the field of oil refining and chemical industry and an application method thereof, more specifically, to a fluidized bed reactor and a gasoline adsorption desulfurization method using the fluidized bed reactor. Background technique [0002] With the continuous improvement of environmental protection requirements, the indicators of gasoline sulfur content are becoming increasingly stringent. This puts forward higher requirements for gasoline desulfurization technology. The fluidized bed gasoline desulfurization process is an important gasoline desulfurization process. [0003] CN1658965A proposes a method and device for desulfurization from hydrocarbon-containing fluid, wherein the desulfurization is enhanced by improving the contact between hydrocarbon-containing fluid and sulfur-absorbing solid particles in a fluidized bed reactor. The reactor adopts a fluidized bed reactor. From bottom to top, the...

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Problems solved by technology

However, in the fluidized adsorption reactor, the fine powder of the catalyst and the fine powder produced by the long-term wear of the particles will be elucidated into the sedimentation space of the fluidized bed for long-term suspension, so that the suspended particles have no chance to return to the dense bed of the fluidized bed , and cannot be discharged from the reactor, which will affect the stable operation of the device in the long run

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