Method for preparing aromatic hydrocarbons through catalytic conversion of oxygenated compound-containing raw material

A technology for catalytic conversion and compounding, which can be used in the production of hydrocarbons from oxygen-containing organic compounds, carbon compound catalysts, hydrocarbons, etc., and can solve problems such as low yield of aromatics.

Active Publication Date: 2018-05-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is the low yield of aromatics in the prior art, and a method for producing aromatics by catalytic conversion of raw materials containing oxygenates is provided, which has the advantage of high yield of aromatics

Method used

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  • Method for preparing aromatic hydrocarbons through catalytic conversion of oxygenated compound-containing raw material
  • Method for preparing aromatic hydrocarbons through catalytic conversion of oxygenated compound-containing raw material
  • Method for preparing aromatic hydrocarbons through catalytic conversion of oxygenated compound-containing raw material

Examples

Experimental program
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Effect test

Embodiment 1

[0042] according to figure 1 In the shown device, the raw material with a methanol weight percentage of 95% enters the catalytic conversion reaction system (1) containing the oxygen-containing compound raw material to obtain a reaction product (9) rich in aromatics; the catalytic conversion reaction system (1) containing the oxygen-containing compound raw material ) is a circulating fluidized bed for catalyst continuous reaction-regeneration; the reaction product (9) rich in aromatics is separated by a separation system (2) to obtain a water phase product (11), an oil phase product (12), and light hydrocarbon effluent materials ( 19). Light hydrocarbon aromatization material (20). The light hydrocarbon aromatization material (20) all enters the light hydrocarbon aromatization reaction system (7), and the light hydrocarbon aromatization reaction product (21) obtained in the light hydrocarbon aromatization reaction system (7) returns to the The deactivated catalyst in the separ...

Embodiment 2

[0048] According to the conditions and steps described in Example 1, the raw material with a weight percentage of methanol of 10% enters the catalytic conversion reaction system (1) containing oxygenate raw material to obtain a reaction product (9) rich in aromatics; by weight, the 10% of the light hydrocarbon aromatization material (20) enters the light hydrocarbon aromatization reaction system (7).

[0049] Catalytic conversion reaction system containing oxygen-containing compound raw materials (1) P-modified Zn-ZSM-5 molecular sieve catalyst is used, Zn loading mass percentage is 10%, the catalyst bed temperature is 550 °C, and the weight space velocity is 6h -1 , The reaction pressure is 0.5 MPa in gauge pressure.

[0050] The light hydrocarbon aromatization reaction system (7) adopts ZSM-22 molecular sieve catalyst loaded with Zn, In, La, and the total content of loaded metal is 15% based on the mass percentage of the catalyst; the catalyst bed temperature is 600°C, and t...

Embodiment 3

[0054] According to the conditions and steps described in Example 1, the raw material (the weight ratio of n-propanol and ethanol is 1:1) that the total weight percentage of n-propanol and ethanol is 70% enters the catalytic conversion reaction system containing oxygenate raw material ( 1) A reaction product (9) rich in aromatics is obtained; by weight, 100% of the light hydrocarbon aromatization material (20) enters the light hydrocarbon aromatization reaction system (7).

[0055] Catalytic conversion reaction system containing oxygen-containing compound raw materials (1) P-modified Zn-ZSM-5 molecular sieve catalyst is used, Zn loading mass percentage is 5%, the catalyst bed temperature is 500 °C, and the weight space velocity is 2h -1 , The reaction pressure is 0.2 MPa in gauge pressure.

[0056] The light hydrocarbon aromatization reaction system (7) adopts ZSM-5 molecular sieve catalyst loaded with Zn, Ga, La, and the total content of loaded metal is 5% based on the mass p...

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Abstract

The invention relates to a method for preparing aromatic hydrocarbons through catalytic conversion of an oxygenated compound-containing raw material. The method mainly solves the problem of low yieldof aromatic hydrocarbons in the prior art. The oxygenated compound-containing raw material enters an oxygenated compound-containing raw material catalytic conversion reaction system to obtain a reaction product rich in aromatic hydrocarbons; the reaction product rich in aromatic hydrocarbons goes through a cooling and separating system to obtain a water phase product and an oil phase product, thewater phase product and the oil phase product are discharged from the system, obtained hydrogen, methane and C2 hydrocarbons are discharged from the system, and at least parts of obtained C3 or more non-aromatic hydrocarbons enter a light hydrocarbon aromatization reaction system; and the obtained light hydrocarbon aromatization reaction product returns to the cooling and separating system. The method adopting the above technical scheme well solves the problem, and can be used in the industrial production of the aromatic hydrocarbons.

Description

technical field [0001] The invention relates to a method for producing aromatics by catalytically converting raw materials containing oxygen-containing compounds. Background technique [0002] Aromatic hydrocarbons (especially triphenyl, benzene Benzene, toluene, xylene Xylene, namely BTX) are important basic raw materials for organic synthesis. Driven by the demand for downstream derivatives, the market demand for aromatics continues to grow. [0003] The steam cracking process using liquid hydrocarbons (such as naphtha, diesel oil, secondary processed oil) as raw material is the main production process of 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 aromatics from alternative raw materials has attracted more and more attention. my country is relatively rich i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C1/20C07C5/31C07C2/00C07C15/04C07C15/06C07C15/08
CPCC07C1/20C07C2/00C07C5/31C07C2529/80C07C2529/76C07C2529/70C07C2529/67C07C2529/40C07C15/04C07C15/06C07C15/08Y02P20/584
Inventor 杨为民钟思青齐国祯李晓红金永明
Owner CHINA PETROLEUM & CHEM CORP
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