Partition reaction system for preparing aromatic hydrocarbon by methanol conversion and reaction method thereof

A technology for methanol conversion and reaction system, which is applied in chemical instruments and methods, hydrocarbon production from oxygen-containing organic compounds, hydrocarbon production by condensation between hydrocarbons and non-hydrocarbons, etc. rate, good technical effect, the effect of promoting full contact

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 methanol conversion to aromatics

Method used

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  • Partition reaction system for preparing aromatic hydrocarbon by methanol conversion and reaction method thereof
  • Partition reaction system for preparing aromatic hydrocarbon by methanol conversion and reaction method thereof
  • Partition reaction system for preparing aromatic hydrocarbon by methanol conversion and reaction method thereof

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Experimental program
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Effect test

Embodiment 1

[0032] use as figure 1 Shown device, fluidized bed reactor (2) is fluidized bed reactor dense phase section (7) and fluidized bed reactor dilute phase section (19) from bottom to top; Light hydrocarbon reaction zone (1) and settling Zone (3) is coaxial with fluidized bed reactor (2); light hydrocarbon reaction zone (1) is divided into light hydrocarbon reaction zone lower part (15), light hydrocarbon reaction zone middle part (16), light hydrocarbon reaction zone from bottom to top The upper part (17) of the zone; the lower part (15) of the light hydrocarbon reaction zone is located under the fluidized bed reactor (2), the middle part (16) of the light hydrocarbon reaction zone is located in the fluidized bed reactor (2), and the upper part of the light hydrocarbon reaction zone (17) is located in the settling zone (3); the settling zone (3) is positioned at the inside of the fluidized bed reactor (2), the top of the settling zone (3) is provided with a filter (13), and the bo...

Embodiment 2

[0040] use as figure 1 Shown device, fluidized bed reactor (2) is fluidized bed reactor dense phase section (7) and fluidized bed reactor dilute phase section (19) from bottom to top; Light hydrocarbon reaction zone (1) and settling Zone (3) is coaxial with fluidized bed reactor (2); light hydrocarbon reaction zone (1) is divided into light hydrocarbon reaction zone lower part (15), light hydrocarbon reaction zone middle part (16), light hydrocarbon reaction zone from bottom to top The upper part (17) of the zone; the lower part (15) of the light hydrocarbon reaction zone is located under the fluidized bed reactor (2), the middle part (16) of the light hydrocarbon reaction zone is located in the fluidized bed reactor (2), and the upper part of the light hydrocarbon reaction zone (17) is located in the settling zone (3); the settling zone (3) is positioned at the inside of the fluidized bed reactor (2), the top of the settling zone (3) is provided with a filter (13), and the bo...

Embodiment 3

[0048] use as figure 1 Shown device, fluidized bed reactor (2) is fluidized bed reactor dense phase section (7) and fluidized bed reactor dilute phase section (19) from bottom to top; Light hydrocarbon reaction zone (1) and settling Zone (3) is coaxial with fluidized bed reactor (2); light hydrocarbon reaction zone (1) is divided into light hydrocarbon reaction zone lower part (15), light hydrocarbon reaction zone middle part (16), light hydrocarbon reaction zone from bottom to top The upper part (17) of the zone; the lower part (15) of the light hydrocarbon reaction zone is located under the fluidized bed reactor (2), the middle part (16) of the light hydrocarbon reaction zone is located in the fluidized bed reactor (2), and the upper part of the light hydrocarbon reaction zone (17) is located in the settling zone (3); the settling zone (3) is positioned at the inside of the fluidized bed reactor (2), the top of the settling zone (3) is provided with a filter (13), and the bo...

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Abstract

The invention relates to a partition reaction system for preparing aromatic hydrocarbon through methanol conversion and a reaction method thereof, and mainly solves the problem of low aromatic hydrocarbon yield in the prior art. 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 regenerator through a spent inclined pipe and is regenerated to obtain a regenerated catalyst; the regenerated catalyst enters a light hydrocarbon reaction zone through a regeneration inclined pipe and carries out contact reaction with a light hydrocarbon raw material;the obtained reaction product and a semi-spent catalyst go up together; the reaction product enters the methanol reaction zone through a filter at the top of the settling zone, the semi-spent catalyst enters the settling zone and enters the methanol reaction zone through a macroporous distribution plate at thebottom of the settling zone, and the reaction product enters a subsequent separation system through a cyclone separator, the problems are well solved, and the reaction system and reaction method canbe used for industrial production of aromatic hydrocarbons.

Description

technical field [0001] The invention relates to a zoned reaction system and a reaction method for converting methanol into aromatics. 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.). Therefore, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C1/20C07C2/86C07C15/02
CPCC07C2/864C07C1/20C07C15/02C07C11/02Y02P20/584
Inventor 李晓红齐国祯金永明王艳学
Owner CHINA PETROLEUM & CHEM CORP
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