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

The technology of a reactor and a slurry bed is applied in the field of a reaction system for preparing ethylene using a slurry bed reactor, which can solve the problems of low catalyst utilization rate and difficult internal heat, etc., and achieve a reaction system and method that are simple, easy to operate, and easy to move hot effect

Active Publication Date: 2016-10-26
北京锦泰诚瑞科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment 1

[0054] Adopt the system for the selective hydrogenation of acetylene to produce ethylene in the embodiment such as image 3 shown. The operating pressure of the reactor in this system is 0.15-0.3MPa, and the temperature is 100-180°C. First use nitrogen as a gas source to establish a gas-liquid flow with the catalyst-containing solvent in the slurry bed reactor 10 . Subsequently, the heater 60 of the temperature control system is gradually turned on to gradually increase the temperature of the solvent system. When the solvent temperature in the reactor reaches the target temperature and the system runs smoothly, acetylene and hydrogen are fed into the reactor. In the reactor, acetylene and hydrogen are catalyzed by the catalyst to produce ethylene. The reacted gas passes through the condenser 20 and the condensation separator 30 to condense the solvent in the gas, and then sends out the reaction boundary area. The solvent condensed from the reactor top condensation separato...

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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 ...

Claims

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Application Information

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IPC IPC(8): C07C11/04C07C5/09B01J8/22
CPCB01J8/0085B01J8/22B01J2208/00088B01J2208/00548B01J2208/00637C07C5/09C07C11/04
Inventor 苏二强史雪君余海鹏刘周恩吴黎阳吴道洪
Owner 北京锦泰诚瑞科技发展有限公司
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