Block assembled type sediment incrustation basket

Abstract

The invention discloses a blocked modular accumulated filth basket. It divides the support plate at the inner section of reactor into several bar plates, while each bar plate has several accumulated filth element; the support plates with accumulated filth elements are assembled in the reactor to the blocked modular accumulated filth basket; wherein, the accumulated filth element comprises a guide-flow plate, a inner screen component, a outer screen component and a cover board, while the inner and outer components form a annular space in which the stuffing or protective agent is filled. Compared to present technique, the invention has following advantages that simple structure, easy installation, high efficiency of catching, filtration and accumulation, fully utilization of begriming function in unit volume, small space, and long working time, while it can be processed in integrated accumulated filth component and avoid the increase of pressure drop in the begriming process. The invention can be used in variable gas-liquid fixed-bed reactor in the hydrogenation on the petroleum hydrocarbon.

Description

technical field [0001] The invention relates to a filtration and deposition equipment, which belongs to the field of solid-liquid separation equipment, and is suitable for solid-liquid separation under the condition that the logistics are gas-liquid two-phase coexistence, and the dirt only exists in the liquid phase and the content is small, especially It is a device for intercepting, filtering and depositing impurities, rust and fouling substances in the liquid phase before the liquid phase enters the catalyst bed of the reactor. Background technique [0002] There are a small amount of impurities and coke in the raw materials of the hydrogenation reactor, as well as rust and dirt generated by impacting pipelines and equipment when flowing through the system. If the above-mentioned dirt accumulates on the surface of the catalyst bed, it will quickly block the flow channel. It causes uneven distribution of raw materials and reduces the use efficiency of the catalyst. At the ...

AI Technical Summary

Problems solved by technology

Practice has proved that because the fouling baskets are mostly hung on the beams, strung together with chains, and filled with ceramic balls or protective agents around them, not only the installation is cumbersome and the uniformity is poor, but more importantly, the utilization rate of the fouling capacity is not high and the space occupied is relatively large. Big

In addition, since the fouling basket is directly placed on the upper surface of the catalyst bed, the length of the liquid phase flow path varies, which will directly affect the uniform distribution of the liquid phase on the catalyst bed

In addition, after a period of operation, the fouling basket is often blocked, causing problems such as increased pressure drop, and the gas-liquid distribution function of the above-mentioned fouling basket is weak, especially in the late stage of the reaction, which may also aggravate the uneven gas-liquid distribution Degree

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