A hydrothermal reaction device and its method and system for processing powder materials

Abstract

The invention provides a hydrothermal reaction device as well as a method and a system of treating a powder material thereby. The device comprises a tubular reactor body, a first heating portion and a second heating portion; the first heating portion is controlled by an external control device to heat the first end portion of the tubular reactor body at a reaction temperature corresponding to to-be-reacted slurry; the second heating portion controlled by the control device heats the second end portion of the tubular reactor body at a reaction temperature, and after the to-be-reacted slurry reaches the reaction temperature, the second end port of the tubular reactor body is heated at a first set temperature and a second set temperature according to a set mutant period; and the tubular reactor body conducts heat generated by the heating portions to the inside to-be-reacted slurry thereof so as to enable convective mixing and reacting of the to-be-reacted slurry, wherein the first set temperature is greater than the reaction temperature and the second set temperature is smaller than the reaction temperature. When the hydrothermal reaction device provided by the invention treats the powder material, the heating time can be shortened.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a hydrothermal reaction device and a method and system for processing powder materials. Background technique [0002] Hydrothermal treatment is the process of preparing powder materials with specific morphology, structure and size (for example, methanol to propylene catalyst prepared under normal temperature state of aging treatment, methanol to aromatics catalyst prepared under normal temperature state of aging treatment), the reaction slurry preprocessing process. [0003] At present, the industry mainly uses tank reactors to realize hydrothermal treatment of powder materials synthesized at room temperature. Specifically, by mixing the powder material synthesized at normal temperature with water to form the slurry to be reacted, and then passing the slurry to be reacted into the tank reactor, the tank reactor can be used to heat the slurry to be reacted accordingly ...

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Problems solved by technology

[0004] However, when using a kettle reactor to carry out hydrothermal treatment of the powder material, on the one hand, the powder material in the slurry to be reacted is not easy to mix with water, and a long heating time is required to fully react the slurry to be reacted; On the one hand, the powder material in the slurry to be reacted may be adsorbed on the wall of the tank reactor, resulting in a decrease in the thermal conductivity of the tank reactor. In order to fully react the slurry to be reacted, it is necessary to further extend the heating time

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