Multitubular slurry bed reactor and reaction system

Abstract

The invention relates to a tubular slurry bed reactor and a reaction system. The tubular slurry bed reactor is a reactor for preparing ethylene from high-concentration acetylene, comprising a sequentially arranged gas inlet section, a tube distribution section and an expansion section, wherein the gas inlet section is provided with a gas inlet for use in The reaction gas is passed into the tubular slurry bed reactor; the tubular distribution section is provided with a plurality of tubulars for reacting the reactive gas in the tubular distribution section to prepare ethylene, and the plurality of A gas distributor is arranged at the bottom of the tubes, and air holes are distributed on it; a gas outlet is arranged at the top of the enlarged section. In the tubular slurry bed reactor described in the present invention, each tubular is a small slurry bed, because the diameter of each tubular is relatively small and the height is relatively high, and the three phases of gas, liquid and solid can be mixed It is more uniform, increases the residence time, improves the gas-liquid flow field distribution, reduces the amplification effect, and enables the reaction to proceed more fully.

Description

Technical field [0001] The invention relates to the field of chemical engineering, in particular to the field of preparing ethylene by using high-concentration acetylene, and in particular to a tubular slurry bed reactor and a reaction system using the slurry bed reactor. Background technique [0002] Ethylene is an important basic raw material in modern industry and one of the world's largest chemicals. Its products are widely used in the national economy, people's lives, national defense and other fields. It is the "mother of organic synthesis". Faced with the shortage of oil resources and rising international oil prices, the source of raw materials has become a bottleneck for the development of the ethylene industry, and it is also a problem that must be solved before people. Therefore, the research and development of a new source and process method to prepare ethylene to replace petroleum as a raw material can alleviate the dependence on petroleum. [0003] In coal chemical te...

AI Technical Summary

Problems solved by technology

However, when the traditional slurry bed reactor produces ethylene from acetylene, the gas-liquid-solid three-phase mixing is uneven, the contact time of the reaction raw materials is short, and the temperature of the bed layer in the reactor is uniform, and the temperature is not easy to control.

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