US 11,890,589 B2 · Alkylation reaction apparatus, reaction system, and liquid acid catalyzed alkylation reaction process

Abstract

An alkylation reaction apparatus has n reactors. In the n reactors, there are m reactors including the first reactor that have three reaction zones as defined below. According to the flow direction order of alkylation reaction streams, the three reaction zones are an x reaction zone, a y reaction zone and a z reaction zone respectively; based on the mixing intensity, the mixing intensity of the y reaction zone>the mixing intensity of the x reaction zone>the mixing intensity of the z reaction zone, wherein n≥1 and n≥m. An alkylation reaction system includes the aforementioned alkylation reaction apparatus, and a liquid acid catalyzed alkylation reaction process by using the aforementioned alkylation reaction apparatus or the aforementioned alkylation reaction system.

Claims20

Dependent claims

An alkylation reaction apparatus, comprising n reactors, wherein m reactors among the n reactors, including a first reactor that are those having each comprises three reaction zones,

said three reaction zones being an x reaction zone, a y reaction zone, and a z reaction zone arranged in a direction along a flow direction of an alkylation reaction streams, and
wherein the y reaction zone has a mixing intensity greater than a mixing intensity of the x reaction zone, and the mixing intensity of the x reaction zone is greater than a mixing intensity of z reaction zone, wherein n≥1 and n≥m.

A liquid acid catalyzed alkylation reaction process, wherein the alkylation reaction of isobutane with a C3-C5 alkene fraction is carried out in the presence of a liquid acid in n reactors, and a inlet temperature of a first reactor amongst said n reactors is −10° C. to 20° C.,

m reactors among said n reactors, including the first reactor, are each provided with an x reaction zone, a y reaction zone and a z reaction zone;
a diluted alkylation reaction raw material is distributed to said m reactors,
in each of said m reactors, an alkylation reaction stream firstly flows into the x reaction zone and then successively flows through the y reaction zone and the z reaction zone, and a mixing intensity of the y reaction zone is greater than a mixing intensity of the x reaction zone, which is greater than a mixing intensity of the z reaction zone, wherein n≥1 and n≥m;
the reaction stream has a residence time in the x reaction zone of 0.01-10 seconds, a residence time in they reaction zone of 0.01-10 seconds, and a residence time in the z reaction zone of 0.1-15 minutes.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

17/433,190Filed 21 Feb 2020

Priority

CN 201910128978.921 Feb 2019

Published

US 2022/0126252 A128 Apr 2022

Granted

6 Feb 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification22 codes

B01J 19/0053
Chemical, physical or physico-chemical processes in general; Their relevant apparatus: details of the reactor
C10G 29/205
Organic compounds not containing metal atoms: by reaction with hydrocarbons added to the hydrocarbon oil
B01D 3/009
Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping: in combination with chemical reactions
B01J 14/00
Chemical processes in general for reacting liquids with liquids

Alkylation reaction apparatus, reaction system, and liquid acid catalyzed alkylation reaction process

Life of this patent

Alkylation reaction apparatus, reaction system, and liquid acid catalyzed alkylation reaction process

Life of this patent

Abstract

Claims20