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Reaction system and reaction method for preparing aromatic hydrocarbon through catalytic conversion of methanol

A technology of catalytic conversion and reaction system, which is applied in the field of reaction systems for catalytic conversion of methanol to aromatics, can solve the problems of low aromatics yield and the like, and achieve the effects of high aromatics yield and good technical effect.

Active Publication Date: 2020-04-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] One of the technical problems to be solved by the present invention is the technical problem of low yield of aromatics in the prior art, providing a reaction system for catalytic conversion of methanol to aromatics

Method used

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  • Reaction system and reaction method for preparing aromatic hydrocarbon through catalytic conversion of methanol
  • Reaction system and reaction method for preparing aromatic hydrocarbon through catalytic conversion of methanol
  • Reaction system and reaction method for preparing aromatic hydrocarbon through catalytic conversion of methanol

Examples

Experimental program
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Effect test

Embodiment 1

[0038] use as figure 1 As shown in the device, the lower part of the riser regenerator (6) is connected to the inclined pipe (7) to be produced, the outlet of the riser regenerator (6) is connected to the riser regeneration cyclone separator (8), and the riser regeneration cyclone separator (8 ) is located in the fluidized bed regenerator (1); the fluidized bed regenerator (1) is provided with a fluidized bed regeneration cyclone separator (9), and the fluidized bed regenerator (1) is located above the degassing zone (2) The degassing zone (2) is positioned at the top of the standpipe (3); the regeneration inclined pipe (19) connects the fluidized bed regenerator (1) and the degassing zone (2); the standpipe (3) is positioned at the fluidized bed reactor ( 22), the lower part of the standpipe (3) is located in the light hydrocarbon reaction zone (4); the fluidized bed reactor (22) is horizontally arranged in sequence from the inside to the outside of the standpipe (3), the lig...

Embodiment 2

[0050] use as figure 1 In the described device, the bottom of the riser regenerator (6) is connected to the inclined pipe (7) to be produced, the outlet of the riser regenerator (6) is connected to the riser regeneration cyclone separator (8), and the riser regeneration cyclone separator ( 8) Located in the fluidized bed regenerator (1); the fluidized bed regenerator (1) is provided with a fluidized bed regeneration cyclone separator (9), and the fluidized bed regenerator (1) is located in the degassing area (2) above; the degassing zone (2) is located above the standpipe (3); the regeneration inclined pipe (19) connects the fluidized bed regenerator (1) and the degassing zone (2); the standpipe (3) is located in the fluidized bed reactor (22), the lower part of the standpipe (3) is located in the light hydrocarbon reaction zone (4); the fluidized bed reactor (22) is horizontally arranged in turn from the inside to the outside of the standpipe (3), the light hydrocarbon reacti...

Embodiment 3

[0062] use as figure 1In the described device, the bottom of the riser regenerator (6) is connected to the inclined pipe (7) to be produced, the outlet of the riser regenerator (6) is connected to the riser regeneration cyclone separator (8), and the riser regeneration cyclone separator ( 8) Located in the fluidized bed regenerator (1); the fluidized bed regenerator (1) is provided with a fluidized bed regeneration cyclone separator (9), and the fluidized bed regenerator (1) is located in the degassing area (2) above; the degassing zone (2) is located above the standpipe (3); the regeneration inclined pipe (19) connects the fluidized bed regenerator (1) and the degassing zone (2); the standpipe (3) is located in the fluidized bed reactor (22), the lower part of the standpipe (3) is located in the light hydrocarbon reaction zone (4); the fluidized bed reactor (22) is horizontally arranged in turn from the inside to the outside of the standpipe (3), the light hydrocarbon reactio...

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Abstract

The invention relates to a reaction system for preparing aromatic hydrocarbon through catalytic conversion of methanol and a reaction method thereof, and mainly solves the problem of low aromatic hydrocarbon yield in the prior art. According to the invention, a methanol raw material enters a methanol reaction zone of a fluidized bed reactor and is subjected to a contact reaction with a modified ZSM-5 catalyst; the obtained spent catalyst enters a riser regenerator through a spent inclined pipe; the obtained semi-regenerated catalyst enters a riser regeneration cyclone separator connected withthe riser regenerator; the separated semi-regenerated catalyst enters a fluidized bed regenerator and is regenerated; the obtained regenerated catalyst enters a degassing zone through a regeneration inclined pipe, the degassed regenerated catalyst enters a light hydrocarbon reaction zone through a vertical pipe and is subjected to a contact reaction with a light hydrocarbon raw material, and the obtained semi-spent catalyst descends in a descending zone and enters a methanol reaction zone, so that the problems are well solved, and the reaction system and reaction method can be used for industrial production of aromatic hydrocarbons.

Description

technical field [0001] The invention relates to a reaction system and a reaction method for producing aromatics by catalytic conversion of methanol. Background technique [0002] Aromatic hydrocarbons (especially triphenyl, benzene, toluene, xylene, namely BTX) are important basic raw materials for organic synthesis. Driven by the demand for downstream derivatives, the market demand for aromatics, especially xylene, continues to grow. [0003] Catalytic reforming and steam cracking processes are the main production processes of aromatics, which belong to the petroleum route production technology. my country is relatively rich in coal resources. With the successful development of high-efficiency, long-cycle methanol catalysts and large-scale methanol plant technology in recent years, the production cost of coal-based methanol has been greatly reduced, which provides a cheap source of raw materials for the production of methanol downstream products (olefins, aromatics, etc.)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C1/20C07C2/00C07C15/04C07C15/06C07C15/08B01J29/48B01J29/40B01J8/24
CPCB01J29/405B01J29/48C07C1/20C07C2/00B01J8/24B01J8/1872B01J8/1836B01J8/0055B01J2229/18C07C2529/40C07C2529/48C07C15/04C07C15/06C07C15/08Y02P20/584Y02P20/52
Inventor 李晓红齐国祯金永明王艳学
Owner CHINA PETROLEUM & CHEM CORP
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