Temperature-controlled gas-liquid horizontal reactor with special distributor

Abstract

The invention relates to a temperature-controlled gas-liquid horizontal reactor with a special distributor. The reactor comprises a shell body and a catalyst bed layer arranged inside the shell body, wherein the shell body is provided with a material inlet and a product outlet, a modular core assembly for heat exchange penetrates through the inside of the catalyst bed layer and consists of a plurality of plates which are arranged in parallel, and a gas distributor is arranged at the material inlet of the reactor. According to the reactor, heat exchange core assembly units penetrate through the catalyst bed layer, and the form of the modular core assembly is specifically arranged as required; cores are parallel and are adjustable in spacing, so that a reaction temperature can be accurately controlled, and the gas distribution is good; fluid is short in flow path, large in cross section and low in flow velocity, gas pressure drop is positively correlated to distance and flow velocity, the pressure drop is reduced, and the system energy consumption is lowered, so that the reactor is particularly applicable to working conditions of low operating pressure; and the horizontal reactor can realize a treatment scale, which is 3 to 5 times that of a common axial reactor, is large in treatment capacity and meets the requirements of large-scale production.

Description

technical field [0001] The invention relates to a reactor, in particular to a temperature-controlled gas-solid horizontal reactor with a special distributor. Background technique [0002] The "13th Five-Year Plan" Science and Technology Development Guidelines for the Petroleum and Chemical Industry promulgated in April 2016 puts forward the technological innovation goal of the "13th Five-Year Plan" for the petrochemical industry: to break through 20 to 30 major key and common technologies that restrict the development of the industry, and independently Develop 10 to 15 sets of large-scale complete sets of equipment, increase the energy efficiency of related key equipment by more than 10%, and the overall technical level of the industry will enter the world's advanced ranks. [0003] The reactor is the core of a complete chemical plant, and the development of large-scale reactors with high throughput is the key to expanding the scale of the plant. Large-scale reactors can re...

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Problems solved by technology

Due to the short gas flow path of the radial reactor, the pressure drop is small, the height of the reactor can be extended, and the catalyst loading can be increased; but because the gas flow cross section is too large, the gas flow rate is small, and some reactions sensitive to internal and external diffusion, Small flow rate will lead to poor mass transfer effect, lower reaction rate, and affect reaction conversion rate; in addition, for tube-and-tube radial reactors, catalyst loading is very difficult due to the existence of tube sheets. For plate-type radial reactors, the inner plate The plates are arranged in a fan shape, the distance between the plates is constantly changing, the heat transfer components are unevenly distributed, and the heat transfer is uneven, which will cause hot spots or overheating.

[0005] Casale and KBR have reported fixed-bed horizontal reactors, which are actually multi-stage, consisting of several horizontally arranged adiabatic beds and inter-stage cooling components. The temperature in the reactor shows multiple changes from low to high. Trend, the temperature changes greatly, which is not conducive to the stable reaction

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