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Reaction device and reaction method for converting methanol and/or dimethyl ether to ethylene, propylene and aromatics

A technology of dimethyl ether and methanol, which is applied to a reaction device and its reaction field for converting methanol and/or dimethyl ether to ethylene, propylene and aromatic hydrocarbons, and can solve the problems of low yields of ethylene, propylene and aromatic hydrocarbons and the like

Active Publication Date: 2016-08-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The problems of low yields of ethylene, propylene and aromatics all exist in the above-mentioned patented technologies

Method used

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  • Reaction device and reaction method for converting methanol and/or dimethyl ether to ethylene, propylene and aromatics
  • Reaction device and reaction method for converting methanol and/or dimethyl ether to ethylene, propylene and aromatics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] use as figure 1 device shown.

[0048] The diameter of the first reaction section of the reactor is 4 meters, and the height accounts for 50% of the total height of the reactor; the ratio of the diameter of the second reaction section to the diameter of the first reaction section is 0.5:1, and its height accounts for 40% of the total height of the reactor. %; The ratio of the diameter of the third reaction section to the diameter of the second reaction section is 0.3:1, and its height accounts for 5% of the total height of the reactor. The height of the first transition section accounts for 3% of the total height of the reactor, and the height of the second transition section accounts for 2% of the total height of the reactor. A heat extractor is arranged outside the reactor, and the height of the heat extractor accounts for 85% of the height of the reactor. A heat extractor is arranged outside the regenerator, and the height of the heat extractor accounts for 80% of ...

Embodiment 2

[0056] use as figure 1 device shown.

[0057] The diameter of the first reaction section of the reactor is 1.5 meters, and its height accounts for 17% of the total height of the reactor; the ratio of the diameter of the second reaction section to the diameter of the first reaction section is 2:1, and its height accounts for 75% of the total height of the reactor. %; The ratio of the diameter of the third reaction section to the diameter of the second reaction section is 1:1, and its height accounts for 3% of the total height of the reactor. The height of the first transition section accounts for 2% of the total height of the reactor, and the height of the second transition section accounts for 3% of the total height of the reactor. A heat extractor is arranged outside the reactor, and the height of the heat extractor accounts for 95% of the height of the reactor. A heat extractor is arranged outside the regenerator, and the height of the heat extractor accounts for 30% of th...

Embodiment 3

[0065] use as figure 1 device shown.

[0066] The diameter of the first reaction section of the reactor is 6 meters, and the height accounts for 70% of the total height of the reactor; the ratio of the diameter of the second reaction section to the diameter of the first reaction section is 0.3:1, and its height accounts for 20% of the total height of the reactor. %; The ratio of the diameter of the third reaction section to the diameter of the second reaction section is 0.3:1, and its height accounts for 5% of the total height of the reactor. The height of the first transition section accounts for 2.5% of the total height of the reactor, and the height of the second transition section accounts for 2.5% of the total height of the reactor. A heat extractor is installed in the reactor, and the height of the heat extractor accounts for 30% of the height of the reactor. A heat extractor is installed in the regenerator, and the height of the heat extractor accounts for 30% of the ...

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Abstract

The invention relates to a reaction device for preparing ethylene, propylene and arene by methyl alcohol and / or dimethyl ether transformation and a reaction method of the reaction device, and mainly aims at solving the problem of low yield of ethylene, propylene and arene in the prior art. The reaction device comprises a reactor (1), a regenerator (2) and a stripper (3); a raw material (6) enters a first reaction segment (12) of the first reactor (1); a circulating material (7) enters a second reaction segment (14) of the reactor (1) and reacts with a catalyst in a contact manner; the generated reaction product and a carbon deposit catalyst enter the stripper (3); the stripped carbon deposit catalyst enters the regenerator (2) to regenerate through a regeneration inclined pipe (4); and the regenerated catalyst enters the reactor (1) through a regeneration inclined pipe (5), the problem is relatively well solved; and the reaction device and the reaction method can be applied to industrial production of ethylene, propylene and arene.

Description

technical field [0001] The invention relates to a reaction device and a reaction method for converting methanol and / or dimethyl ether to produce ethylene, propylene and aromatic hydrocarbons. Background technique [0002] Ethylene, propylene and aromatics (especially triphenyl, Benzene, Toluene, Xylene, or BTX) are important basic raw materials for organic synthesis. Driven by the demand for downstream derivatives, the market demand for ethylene, propylene and aromatics continues to grow. [0003] The steam cracking process using liquid hydrocarbons (such as naphtha, diesel, secondary processed oil) as raw material is the main production process of ethylene, propylene and aromatics. This process belongs to the production technology of petroleum route. In recent years, due to the limited supply and high price of petroleum resources, the cost of raw materials has been increasing. Due to these factors, the technology of producing ethylene, propylene and aromatics from alterna...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C1/20C07C11/04C07C11/06C07C15/04C07C15/06C07C15/08
CPCY02P20/52Y02P20/584Y02P30/20Y02P30/40
Inventor 李晓红王菊俞志楠
Owner CHINA PETROLEUM & CHEM CORP
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