Alkylation reaction system and its supporting alkylation reaction process

A technology of alkylation reaction and alkylation reactor, which is applied in the field of alkylation reaction system device, high-efficiency alkylation reaction process method and alkylation reaction system. Equal issues to achieve the effect of avoiding adverse effects, improving product quality, and reducing the proportion of side reactions

Active Publication Date: 2022-06-03
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it cannot solve the local unevenness caused by the large difference in the density of hydrocarbon acids during pre-pulse mixing, and the short-term reaction heat after pre-pulse mixing cannot be avoided.

Method used

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  • Alkylation reaction system and its supporting alkylation reaction process
  • Alkylation reaction system and its supporting alkylation reaction process
  • Alkylation reaction system and its supporting alkylation reaction process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

The mixture of hydrocarbons, the composition of C3-C5 olefins is shown in Table 1 below:

Table 1

[0109]

[0110]

[0111] The feed ratio of maintaining the acid-hydrocarbon ratio of 0.9:1 is passed through the feed port of the alkylation reactor with 95 wt% sulfuric acid, respectively,

It is sprayed into the cavity of the alkylation reactor, mixed at a high speed under the action of the high-speed rotating rotor, and sent to the shell under the action of centrifugal force.

body movement. During this process, the mixed material is affected by the centrifugal force field and is disturbed by the high-speed shearing of the stator and rotor layer by layer.

Mixing and redistribution occur many times, and the dispersed form is very small droplets or very thin liquid films. When the reaction temperature of the system is 0 °C, the reaction

When the pressure system is controlled at 0.37MPa, part of the hydrocarbons in the droplets or liquid film flashes, taking away the heat of ...

Embodiment 2

[0123] The feed system adopts a volume concentration of 30.77% propane, 61.53% isobutane and 7.70% C3-C5 olefins

[0128] The RON value of the alkylation reaction product obtained by this process is 100.6.

Embodiment 3

[0131] The feed system adopts a volume concentration of 30.77% propane, 61.53% isobutane and 7.70% C3-C5 olefins

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Abstract

The invention discloses an alkylation reaction system and its supporting alkylation reaction process method, the alkylation reaction process method comprises a new type of alkylation reactor combined with a multi-stage series process under the condition of centrifugal force field flash evaporation A system device and a supporting process method for an alkylation reaction. Compared with the existing traditional alkylation reactor, when producing products of the same quality, using the alkylation reaction system of the present invention and its matching alkylation reaction process method can achieve energy saving and consumption reduction during the alkylation reaction effect; or under the same energy consumption and material consumption conditions, use the alkylation reaction system of the present invention and its supporting alkylation reaction process method to carry out the alkylation reaction to produce products with higher octane numbers , thereby improving product quality.

Description

Alkylation reaction system and matching alkylation reaction process method technical field The present invention provides a kind of high-efficiency alkylation reaction process method and alkylation reaction system of energy saving and consumption reduction, specifically related to and including the use of a novel alkylation reactor combined with a multi-stage series process to carry out the alkylation reaction under centrifugal force field flash conditions The system device and the supporting process method thereof belong to the field of petrochemical industry. Background technique [0002] The alkylation reaction is one of the core reactions in the petroleum refining industry. Among them, the most common alkylation reaction is the Low-temperature alkylation reaction catalyzed by sulfuric acid for the production of high-octane high-quality oils. In the alkylation reaction of the petroleum refining industry, reactions such as initiation, dimerization, multimerization, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/28B01J19/00B01F29/00B01D3/06
CPCB01J19/28B01J19/0013B01D3/06B01F29/15Y02P20/10
Inventor 高飞宋云华王若欣周华群李应文何涛波何盛宝李玮刘奕隆时文
Owner PETROCHINA CO LTD
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