Reaction system and method for preparing ethylene by using slurry bed reactor

Abstract

The invention relates to a reaction system and method for preparing ethylene by using a slurry bed reactor. The system comprises the slurry bed reactor, a condenser, a condensation separator, a solvent pump, a solvent mixing tank, a solvent temperature control system, filter equipment, a green oil removing system, a high-temperature heating device and a catalyst reduction device, wherein the solvent temperature control system comprises a heater, a solvent bypass and a cooler; the solvent mixing tank communicates with the slurry bed reactor; the filter equipment communicates with the slurry bed reactor; the condenser communicates with the slurry bed reactor; the solvent temperature control system communicates with the slurry bed reactor; the condenser, the condensation separator and the solvent mixing tank communicate with one another successively; the solvent mixing tank, the solvent pump and the solvent temperature control system communicate with one another successively; the filter equipment, the high-temperature heating device, the catalyst reducing device and the solvent mixing tank communicate with one another successively; and the filter equipment, the green oil removing system and the solvent mixing tank communicate with one another successively. By the reaction system and method, the problems that heat inside prepared ethylene cannot be transferred out easily, and the utilization rate of a catalyst is low can be solved effectively.

Description

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

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a reaction system and method for preparing ethylene using a slurry bed reactor, so as to solve the problems that the internal heat is not easily transmitted and the catalyst utilization rate is low when preparing ethylene in the prior art

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