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A method for upgrading gasoline with high olefin content

A technology with high olefin content and high olefin, which is applied in the treatment of hydrocarbon oil, hydrocarbon oil treatment products, petroleum industry, etc. It can solve the problems of excessive oxygen in the blended gasoline and cannot be used in the factory, so as to increase the gasoline yield and improve the operating pressure. , the effect of reducing olefin content

Active Publication Date: 2019-03-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gasoline etherification process can convert olefins such as tert-amylene into ethers. However, after the etherification products are blended into catalytic gasoline, it is easy to cause the oxygen element in the blended gasoline to exceed the standard, and it cannot be used in the factory.
[0013] In summary, although some methods for reducing the olefin content of catalytic cracking gasoline are provided in the prior art, and methods for introducing hydrogen-donating components into the catalytic cracking unit and improving product distribution and product properties are also introduced, but C2-C5 The method of upgrading gasoline with high olefin content by reacting small molecule hydrocarbons with gasoline in a pressurized fluidized bed has not been reported

Method used

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  • A method for upgrading gasoline with high olefin content
  • A method for upgrading gasoline with high olefin content
  • A method for upgrading gasoline with high olefin content

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Experimental program
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Effect test

Embodiment approach

[0061] According to the present invention, the molecular sieve catalyst can use conventional catalysts well known to those skilled in the art, and the present invention has no special limitation thereto. In order to meet the operating requirements of fluidized bed reactors and regenerators, the shape of the molecular sieve catalyst is generally microsphere. The molecular sieve catalyst generally contains an active component and a support. According to a specific embodiment of the present invention, for example, wherein the molecular sieve catalyst may include an MFI type molecular sieve, a metal component, a carrier and a binder. Wherein the skeleton component of MFI type molecular sieve can be silicon, aluminum and / or phosphorus, and molecular sieve content can account for 10%-50% of catalyst gross weight; Metal component can be selected from zinc, iron, zirconium, gallium, silver, molybdenum At least one of metal components such as copper, nickel, manganese, chromium, plati...

Embodiment 1-4

[0081] Embodiment 1-4 takes the small molecule hydrocarbon compounds shown in Table 3 and the full cut stable gasoline shown in Table 2 as raw materials, and uses CRP-C catalyst to adopt figure 1 The process shown is for gasoline upgrading. The specific reaction conditions and reaction results are shown in Table 4. The regeneration temperature is 550°C, the regeneration pressure is 0.3MPa, the residence time of the catalyst is 12 minutes, and the fluidized medium is air.

Embodiment 5

[0083] Embodiment 5 takes the small molecular hydrocarbon compounds shown in Table 3 and the light gasoline shown in Table 2 as raw materials, and uses CRP-C catalyst to adopt figure 2 The process shown is for gasoline upgrading. The specific reaction conditions and reaction results are shown in Table 4. The regeneration temperature is 550°C, the regeneration pressure is 0.3MPa, the residence time of the catalyst is 12 minutes, and the fluidized medium is air.

[0084] As can be seen from Table 4, adopting the method of the present invention to carry out upgrading reaction to produce gasoline with low olefin content can not only isolate the hydrocarbon environment of the reaction and the oxygen environment of regeneration, and ensure the safety of the process, but also increase the reaction rate. pressure, increase the processing capacity of the device, and from the hydrocarbon composition and octane number of the gasoline obtained from the reaction, it can be seen that with t...

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Abstract

The invention discloses a method for improving gasoline with high olefin content. The method comprises the steps as follows: preheated gasoline with high olefin content and micromolecular hydrocarbon compounds are continuously contacted with a molecular sieve catalyst in a fluidized bed reactor for an improvement reaction, and oil gas with low olefin content and a to-be-generated catalyst with carbon deposit are produced; the to-be-generated catalyst led from the reactor is conveyed to a to-be-generated catalyst receiver, conveyed to a to-be-generated catalyst feeding tank through a locked hopper, conveyed to a fluidized bed regenerator from the to-be-generated catalyst feeding tank and burnt for regeneration in the regenerator in the oxygen atmosphere, and a regenerated catalyst is obtained; the regenerated catalyst is continuously led to a regenerated catalyst receiver from the regenerator, conveyed to a regenerated catalyst feeding tank from the locked hopper and then continuously returned to the reactor from the regenerated catalyst feeding tank. The method is safe, the pressure of the reactor can be increased, and the device treatment amount can be increased.

Description

technical field [0001] The invention relates to a method for upgrading gasoline with high olefin content. Background technique [0002] With the requirements of environmental protection, countries around the world have made extremely strict regulations on the content of olefins in motor gasoline. Although the standards for new formula gasoline formulated by countries around the world are not the same, a general trend is that olefins in gasoline components The content is 20% by weight or less. As we all know, the olefin content of catalytic cracking gasoline is 25% to 60% by weight. Since more than 70% of the composition of commercial gasoline in my country comes from catalytic cracking units, there is a lack of corresponding catalytic reforming, alkylation, isomerization and ether. Therefore, the blending components of commercial gasoline in my country are less. [0003] Due to its poor stability, olefins in gasoline are easy to form colloids; at the same time, gasoline wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/05
CPCC10G11/05C10G2400/02
Inventor 王新于敬川崔守业
Owner CHINA PETROLEUM & CHEM CORP