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Method for producing alkylate oil

A technology of alkylation oil and alkylation reaction, which is applied in the production of liquid hydrocarbon mixture, treatment of hydrocarbon oil, petroleum industry, etc., to achieve the effects of improving catalytic activity, increasing selectivity, and reducing heavy component content

Pending Publication Date: 2022-05-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a big gap compared to the market's demand for product quality and output of alkylate

Method used

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  • Method for producing alkylate oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058]Pour 100mL (184g) of concentrated sulfuric acid (Bailingwei Technology Co., Ltd., with a mass concentration of 98%) into the batch stirring reactor, and then add 2.5mL (3.0 g), 0.5 mL (0.6 g) of trimethyl phosphate (Bailingwei Technology Co., Ltd., purity>99%) and 1.8 g of acid-soluble oil, replaced the air in the reactor with nitrogen, and started stirring and refrigeration. Adjust the stirring speed to 1200r / min, control the temperature at 8°C, and control the pressure at 0.4MPa. Use a pump to inject 100mL of mixed C4 raw material with a volume ratio of C4 alkanes and alkenes of about 8:1 for alkylation Reaction 8min. After the reaction is completed, the stirring is stopped, and the reaction product and the catalyst are statically layered, the lower layer is the catalyst, and the upper layer is the reaction product alkylate oil, and the reaction product alkylate oil is obtained after separation. Among them, the specific composition of the mixed C4 raw material is 87.4...

Embodiment 2

[0062] Adopt the method for embodiment 1 to prepare alkylated gasoline, the difference is only: the co-catalyst is ethyl methanesulfonate (Bai Lingwei Technology Co., Ltd., purity > 99%) 2.5mL (3.0g), triethyl phosphate (Bai Lingwei Technology Limited, purity>99%) 0.5mL (0.6g) and acid soluble oil 3.7g.

Embodiment 3

[0066] The method of Example 1 is adopted to prepare alkylated gasoline, the difference is only that the co-catalyst is 3.1 g of methyl 4-toluenesulfonate (Bai Lingwei Technology Co., Ltd., purity>98%), tributyl phosphate (Bai Lingwei Technology Co., Ltd. company, purity>99%) 0.6mL (0.6g) and acid-soluble oil 3.7g.

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Abstract

The invention relates to a method for producing alkylate oil, which comprises the following step: under alkylation reaction conditions, carrying out contact reaction on isobutane and C4 olefin in the presence of a sulfuric acid solution and a co-catalyst, wherein the co-catalyst contains phosphate ester and acid-soluble oil. According to the alkylation reaction method disclosed by the invention, the co-catalyst containing phosphate and acid-soluble oil is added in the sulfuric acid catalytic alkylation reaction, so that the catalytic activity of a sulfuric acid catalytic system is improved, and the selectivity of a C8 component in the product alkylated oil and the selectivity of a high-octane component in the C8 component are improved; the contents of C5-7 components and heavy components above C9 are greatly reduced, and the octane number of the product is also obviously improved.

Description

technical field [0001] The present disclosure relates to the field of alkylate production, in particular, to a method for producing alkylate. Background technique [0002] With the rapid development of the automobile industry and the increasingly stringent emission standards of automobile exhaust, the demand for clean gasoline production is increasing all over the world. from isobutane and C 4 Alkylation of alkenes to C 8 The isooctane product, that is, alkylate, has the advantages of no olefins, no aromatics, low sulfur content, low vapor pressure, high octane number, and good anti-knock performance. It is the most ideal blending component for clean gasoline. [0003] At present, there are mainly sulfuric acid method and hydrofluoric acid method for producing alkylated oil in industry. However, due to the large amount of waste acid discharged in the sulfuric acid process, the environmental pollution is serious; hydrofluoric acid is a volatile and highly toxic chemical, a...

Claims

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Application Information

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IPC IPC(8): C10G50/00
CPCC10G50/00C10G2300/305C10G2300/4006C10G2300/4012C10G2300/4018C10G2300/70
Inventor 喻惠利俞芳温朗友董明会夏玥穜郜亮
Owner CHINA PETROLEUM & CHEM CORP
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