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Method and apparatus for olefin superposition

An olefin hydration and olefin technology, which is applied in the production of liquid hydrocarbon mixtures, hydrocarbon oil treatment, hydrocarbon oil treatment products, etc., can solve the problems of high requirements and complicated raw material refining process, achieve low cost, improve softening status, and improve catalytic performance. Active and Selective Effects

Active Publication Date: 2020-11-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In the prior art, when a solid phosphoric acid catalyst is used for the superposition reaction, the requirements for the impurity content of the raw material are very high, and the raw material refining process is complicated. For example, the C4 raw material must be treated with demetallization and basic nitride to ensure the operating cycle of the catalyst.

Method used

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  • Method and apparatus for olefin superposition
  • Method and apparatus for olefin superposition
  • Method and apparatus for olefin superposition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0085] According to an embodiment of the present invention, the metal content in the laminated raw material is 1 μg / g-10 μg / g, preferably 1.5 μg / g-10 μg / g, more preferably 2 μg / g-6 μg / g.

[0086] According to one embodiment of the present invention, in the laminated raw materials, the content of basic nitrogen compounds is 1 μg / g to 10 μg / g, preferably 1.5 μg / g to 10 μg / g, more preferably 2 μg / g to 6 μg / g g.

[0087] According to the aforementioned embodiment, the strongly acidic cation exchange resin catalyst loaded in the first reaction zone can effectively remove metals in the superimposed raw materials, and can also remove basic nitrides in the raw materials. Generally speaking, the contents of metals and basic nitrides can be easily reduced to less than 1 μg / g after the laminated raw materials pass through the first reaction zone.

[0088] The present invention also provides a device for realizing the above method, which is characterized in that it includes a first react...

Embodiment 1

[0097] refer to figure 1 The process flow shown, the experimental device is established in the laboratory, the first fixed bed reactor (ie the first reaction zone) with an inner diameter of φ19mm and a length of 600mm and the second fixed bed reactor with an inner diameter of φ32mm and a length of 1000mm (i.e. the second reaction zone) in series, and 50mL KC110 macroporous strong-acid cation exchange resin (produced by Hebei Kairui Environmental Protection Technology Co., Ltd., with a mass exchange capacity of 5.4mmolH) was loaded into the first fixed-bed reactor + / g, water content 35m%), in the second fixed-bed reactor, load 200mL RSPA-01 type loaded solid phosphoric acid catalyst (production of Sinopec Changling Catalyst Branch Company, total phosphoric acid content 65m%, free phosphoric acid content 18m%) .

[0098] Mixed C4 (that is, superimposed raw material) is taken from the C4 fraction of a catalytic cracking unit of a company, and its composition (mass fraction) is:...

Embodiment 2

[0128] The difference between this embodiment and Example 1 is that all the C4 raw materials enter from the first fixed-bed reactor, and the flow rate is 200g / h, that is, the feed of the second fixed-bed reactor is all from the first fixed-bed reactor. output. Other parts not mentioned in this embodiment are the same as in Embodiment 1. The results of running for 2 months are shown in Table 7.

[0129] Table 7

[0130]

[0131] The experimental product was collected, and the unreacted C4 was removed by rectification, and the oil product was fully analyzed. The result showed that the octane number of the oil product was RON103, and the dry point was 201°C.

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Abstract

The invention relates to an olefin polymerization method, and the method comprises a first reaction zone and a second reaction zone, wherein a polymerization raw material and water enter the first reaction zone and react under the condition of olefin hydration; and the material discharged from the first reaction zone enters the second reaction zone independently or together with the superimposed raw material, and reacts under the olefin superimposition condition. By arranging the two reaction zones, the softening condition of the solid phosphoric acid catalyst is effectively reduced.

Description

technical field [0001] The invention relates to a method and a device for olefin superposition, in particular to an olefin superposition method and a device using a solid phosphoric acid catalyst. Background technique [0002] Superposition, also known as oligomerization, refers to the process in which two or more low-molecular olefins react to form larger molecular olefins. Alignment olefins produced by the alignment reaction can be used as gasoline components and raw materials for the production of various fine chemical products, and have a wide range of applications. For example, isooctene produced by superposition of butene is a high-quality high-octane gasoline component, and it is also a raw material for the production of octylphenol and octylamine. Especially after the country fully implements the ethanol gasoline policy in 2020, butene superposition as an alternative technology to MTBE will be fully promoted and applied. [0003] The superposition reaction of olefi...

Claims

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Application Information

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IPC IPC(8): C10G50/00
CPCC10G50/00C10G2400/02
Inventor 温朗友宗保宁郜亮夏玥穜张伟赵志海丁晖殿俞芳杜泽学董明会喻惠利
Owner CHINA PETROLEUM & CHEM CORP
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