Silicon carbide micro-channel alkylation reactor and application method thereof

A technology of alkylation reactor and microchannel reaction, applied in chemical/physical/physical chemical reactors, chemical instruments and methods, chemical/physical/physical chemical processes, etc. Silicon carbide channel diameter is large, low conversion rate and other problems, to achieve the effect of low temperature alkylation reaction, high product quality, high octane number

Pending Publication Date: 2018-06-08
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology describes an improved type of chemical process called microrefining which involves reacting two different types of molecules together at very small distances inside one vessel or tube under specific temperatures for long periods without losing their effectiveness due to heat transfer from outside sources such as flames or electrical arcs. Microcracked products have higher degrees of purity than regular ones but they are less expensive compared to regular ones because it requires fewer steps during processing instead of multiple times.

Problems solved by technology

This patents describes different methods for optimizing the performance of chemical processes like gasoline refining (GAR) that use sulfonic acids instead of traditional naphtha bases due to their lower cost compared to other alternatives. Additionally, current techniques have limitations including poor heat transfer efficiency caused by insufficient contact between reactants and solvent droplets during atomization leading to increased risk of corrosion issues over time.

Method used

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  • Silicon carbide micro-channel alkylation reactor and application method thereof
  • Silicon carbide micro-channel alkylation reactor and application method thereof
  • Silicon carbide micro-channel alkylation reactor and application method thereof

Examples

Experimental program
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Embodiment 1~3

[0035] use as figure 1 The reactor of the shown structure uses sulfuric acid as a catalyst to carry out the alkylation reaction.

[0036] The molar ratio of isobutane to olefin is 3~10:1; the volume ratio of acid to hydrocarbon is 0.5~2:1; the residence time of the reaction material in the reactor is 1~30 min. The pressure at the bottom of the reactor is 0~0.05 MPa, and the pressure drop of the reactor is 0~0.4 MPa. The reaction temperature was maintained at -3~3°C.

[0037] The reactor structure is as follows: the diameter of the reactor is 50-300 mm, the height is 250-2500 mm, the height of the fiber bed is 10-120 mm, and the height of the silicon carbide bed is 100-1500 mm.

[0038] The specific reaction conditions are shown in Table 1, and the reaction results are shown in Table 2.

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Abstract

The invention relates to the field of petrochemical engineering, and discloses a silicon carbide micro-channel alkylation reactor and an application method thereof. A liquid acid circulating pipe (4),a raw material feed inlet (5), a gas phase extraction port (6) and a liquid phase extraction port (7) are respectively arranged on a reactor shell; a micro-channel reaction module and a defoaming separation component (3) are sequentially perpendicularly arranged in the shell from top to bottom; the raw material feed inlet (5) is formed in the top part of the shell; an upper end port of the liquidacid circulating pipe (4) is communicated with an inner cavity of the shell through a liquid acid feed inlet in the top part of the shell; the gas phase extraction port (6) is arranged on the lower part of the micro-channel reaction module. According to the silicon carbide micro-channel alkylation reactor and the application method thereof provided by the invention, iso-butane and olefin are adopted as raw materials, liquid acid is adopted as a catalyst, and a target product alkylate oil is obtained through alkylation reaction. The silicon carbide micro-channel alkylation reactor provided bythe invention effectively solves the problem that an alkylation reactor is nonuniform in temperature distribution, and has the characteristics of good raw material distribution, easiness in temperature control, high product quality and the like.

Description

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Claims

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Application Information

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Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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