U-shaped dual-drive dispersion strengthening reaction device

Abstract

The utility model discloses a U-shaped dual-drive dispersion strengthening reaction device. The device comprises a servo driver connected with a gas-phase raw material and a liquid-phase raw material,the top of the servo driver is connected with a first-stage dispersion strengthening reactor, the first-stage dispersion strengthening reactor is provided with a raw material inlet, a gas-phase material outlet communicated with the product diverter, a raw material outlet, a first-stage circulating gas inlet connected with circulating raw materials and a driving guide pipe, and a main driver is arranged at the inlet of the driving guide pipe in the first-stage dispersion strengthening reactor; the raw material outlet of the primary dispersion strengthening reactor is connected with the bottominlet of the secondary dispersion strengthening reactor through a U-shaped transition section, and the secondary dispersion strengthening reactor is communicated with a post-treatment system through adischarge pipeline. The U-shaped dual-drive dispersion strengthening reaction device is essentially different from existing hydrotreating processes such as heavy oil fixed bed hydrogenation, fluidized bed hydrogenation and suspended bed hydrogenation, and the raw material utilization rate, the target product comprehensive yield, the target product quality and the productivity intensity of a single set of device in the chemical process are greatly improved while the reaction process is enhanced.

Description

technical field [0001] The invention belongs to the technical field of reaction process strengthening, and in particular relates to a U-shaped double-drive dispersion strengthening reaction device. Background technique [0002] Heavy oil lightening technology can be divided into two categories: hydrogenation route and decarbonization route. In recent years, with the increasing trend of heavy crude oil in the world and the increasing demand for light liquid products in the terminal consumer market, the products obtained by the hydrogenation route have the advantages of light product yield, post-process processing difficulty, and raw material utilization. The advantages in terms of efficiency, heteroatom content, etc. are becoming more and more obvious, showing the unparalleled competitive advantages of conventional decarburization processes. Therefore, the hydrogenation technology of heavy and inferior raw materials and its related combined process technology routes have bec...

AI Technical Summary

Problems solved by technology

Although this method can realize the preliminary distribution of gas and liquid, the circulating oil cannot achieve better distribution, and at the same time, it cannot achieve better mixing of circulating oil and hydrogen.

CN1459490A discloses a heavy oil suspended bed hydrocracking process, the hydrocracking reactor used in the process is a full back-mixed loop reactor, and a fixed-bed hydrofinishing reactor matched with it is attached, and the process Multiple cyclone separators are installed in the product separation system, which greatly reduces the solid content of circulating tail oil and vacuum tail oil. Although this process can improve the conversion rate of residue oil, the installation of cyclone separators increases the Equipment investment, cumbersome operation process

This method improves the conversion rate of raw material heavy components and asphaltenes, but this method adds an adsorbent, which increases the solid content in the product, which is not conducive to the processing of subsequent processes

[0005] Therefore, the technical problem mainly solved by the present invention lies in the low gas-liquid-solid three-phase mass transfer heat transfer efficiency, high hydrogen-to-oil ratio, and The temperature field distribution in the reactor is uneven, the conversion efficiency of raw materials is low, the degree of lightness of raw materials is low, the composition of products is poor, the yield of light liquids is low, the system is easy to coke and block and cannot be operated for a long period, etc. There are fixed-bed hydrogenation, ebullating-bed hydrogenation, and suspension-bed hydrogenation technologies. There are fundamentally different new high-efficiency heavy and inferior oil hydrogenation reactors.

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