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A liquid acid alkylation reactor and its application method

An alkylation reactor and alkylation reaction technology, applied in chemical/physical/physical-chemical nozzle reactors, production of liquid hydrocarbon mixtures, petroleum industry, etc. Satisfaction of people, etc., to achieve the effect of saving equipment investment, easy processing, and speeding up the rate of alkylation reaction

Active Publication Date: 2020-06-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mixing of the acid hydrocarbon emulsion and other reactants in the riser is not satisfactory. In addition, the entire reactor system uses a riser, two horizontal tanks and a downcomer, and the equipment is huge and the structure is not compact enough.

Method used

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  • A liquid acid alkylation reactor and its application method
  • A liquid acid alkylation reactor and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The structure of the liquid acid alkylation reactor is as attached figure 1 As shown, wherein, the diameter of the reactor is 2m, the height is 15m, the height of the mixing zone is 1.5m, 2 groups of jet mixers are arranged in the mixing zone, the height of the reaction zone is 10m, and the packed packing is capillary glass fiber structured packing, gas The position of the outlet is 3.5m, the position of the liquid phase product outlet is 0.5m, the shape of the conical guide tube is funnel-shaped, and the height is 2.5m.

[0049] The above-mentioned liquid acid alkylation reactor was used for the alkylation reaction, and the reaction raw material was C4 liquefied gas, which was obtained from Shijiazhuang Oil Refining and Chemical Industry Co., Ltd. The mass percent composition is: 0.098% of propane, 39.36% of isobutane, 13.51% of n-butane, 1.39% of isobutene, 14.70% of 1-butene, 14.92% of cis-butene, 16.0% of trans-butene and 0.022% of pentane. Control the alkene ratio...

Embodiment 2

[0051] Adopt the liquid acid alkylation reactor in embodiment 1 to carry out alkylation reaction, reaction process and reaction raw material are the same as embodiment 1, difference is that liquid acid catalyst is the mixture of concentrated sulfuric acid and trifluoromethanesulfonic acid, concrete composition The 98.5% concentrated sulfuric acid accounts for 92%, and the trifluoromethanesulfonic acid accounts for 8%. Control the alkene ratio of the mixed hydrocarbons entering the reactor to be 10:1:1, the reaction pressure is 0.25MPa, and the temperature is 0°C. The alkylation reaction product is distilled to remove most of the carbon four components, and the obtained alkylated oil The dry point is 192°C, the RON value is 97.3, and the MON value is 95.0.

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Abstract

A liquid acid alkylation reactor and an application method thereof are provided. The reactor comprises a mixing zone, a reaction zone and a liquid collection zone from top to bottom; the mixing zone is internally provided with at least one group of jetting flow mixers, and each group of jetting flow mixers comprises at least two ejectors which are in centrosymmetry at a same horizontal plane; the reaction zone is internally loaded with a packing; the liquid collection zone is connected with inlets of the jetting flow mixers through a circulating pump, the upper part of the liquid collection zone is provided with a gas outlet, and a liquid-phase product outlet is arranged below the gas outlet. The liquid acid alkylation reactor provided by the invention is suitable for an alkylation reaction with sulfuric acid, an ionic liquid or a mixed acid with sulfuric acid as a main component as a catalyst. The reactor is an alkylation reactor which is simple and compact in structure, small in investment, and convenient to operate and maintain, and saves the power.

Description

technical field [0001] The invention relates to a reactor in the field of petrochemical industry, in particular to a reactor for carrying out alkylation reaction of isoparaffins and olefins under liquid acid catalysis. Background technique [0002] The alkylation reaction of isoparaffins and olefins mainly refers to the alkylation reaction of isobutane and butene. The essence of the reaction is the organic addition of alkane molecules to olefin molecules in the presence of acidic catalysts. reaction. Alkylation is an important process in the petrochemical industry. The isomeric C produced by the reaction of isobutane and butene under the action of a strong acid catalyst 8 Alkanes, known as alkylated gasoline. Alkylated gasoline has high octane number (RON94-96) and low Reid vapor pressure, very low sulfur content and olefin content, no benzene and aromatics, and is an excellent gasoline blending component. The use of new formula gasoline as the fuel for gasoline engines ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/26C10G50/00
Inventor 董明会温朗友宗保宁慕旭宏杨克勇俞芳喻惠利郜亮
Owner CHINA PETROLEUM & CHEM CORP
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