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Moving-bed reactor, solid acid alkylation reaction system and solid acid alkylation reaction method

A moving bed reactor, alkylation technology, applied in chemical instruments and methods, chemical/physical processes, production of liquid hydrocarbon mixtures, etc. Contact efficiency, the effect of improving contact opportunities

Active Publication Date: 2018-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the solid acid alkylation process, since the solid acid catalyst is easily deactivated, in order to maintain a certain reactivity, frequent regeneration operations are required. Therefore, it is necessary to develop a reactor technology that can realize the continuous reaction and regeneration process. It is very important to promote the development of solid acid alkylation technology

Method used

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  • Moving-bed reactor, solid acid alkylation reaction system and solid acid alkylation reaction method
  • Moving-bed reactor, solid acid alkylation reaction system and solid acid alkylation reaction method
  • Moving-bed reactor, solid acid alkylation reaction system and solid acid alkylation reaction method

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Embodiment 1

[0070] in the attached image 3 The solid acid alkylation reaction is carried out on the medium-sized experimental device of the moving bed reactor shown. The inner diameter of the reaction zone of the reactor is 200 mm, the height is 3000 mm, the inner diameter of the settling area is 500 mm, and the height is 1000 mm. 5 metal tubes with a diameter of 30mm filled with sieve holes, and the metal tubes are covered with a layer of wire mesh. The reaction raw material is a mixture of isobutane and butene, and the ratio of the two is 14:1. The fluid of the reaction product fluid returned to the reaction zone after liquid-solid separation accounts for 90% of the total fluid. The superficial flow rate of the liquid raw material mixture in the reaction zone is 0.04m / s, the corresponding total feed rate is 2360kg / h, and the mass space velocity of olefins is 0.2h -1 . The catalyst is a molecular sieve spherical catalyst loaded with metal Pt, the content of the active metal Pt is 0.3w...

Embodiment 2

[0072] in such as Figure 4 The solid acid alkylation reaction is carried out on the medium-sized experimental device of the moving bed reactor shown. The inner diameter of the reaction zone of the reactor is 200mm, the height is 3000mm, the inner diameter of the settling zone is 500mm, and the height is 1000mm. The device is composed of a fan-shaped cylinder made of Johnson mesh. The fluid distributor in the central area is a metal tube with a diameter of 30mm filled with screen holes. The metal tube is covered with a layer of wire mesh. The reaction raw material is a mixture of isobutane and butene, and the ratio of the two is 10:1. The fluid of the reactant fluid returned to the reaction zone after liquid-solid separation accounts for 60% of the total fluid. The superficial flow rate of the liquid raw material mixture in the reaction zone is 0.05m / s, the corresponding total feed rate is 3000kg / h, and the mass space velocity of olefin is 0.2h -1 . The liquid products are s...

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Abstract

The invention provides a moving-bed reactor, a solid acid alkylation reaction system and a solid acid alkylation reaction method. The moving-bed reactor comprises a reactor shell, a fluid distributor,a solid particle distributor and a feed system, wherein the internal space of the reactor shell is divided into a particle collecting area, a reaction area and a particle deposition area from bottomto top; the fluid distributor is arranged in the reaction area, the bottom of the fluid distributor is communicated with a fluid feed port, the solid particle distributor is located at the upper partof the reaction area, and the top of the solid particle distributor is communicated with a catalyst inlet; a catalyst outlet is formed in the bottom of the particle collecting area. The moving-bed reactor is suitable for a solid acid alkylation reaction, alkylation raw materials are subjected to cross-current and counter-current contact reactions with a catalyst in the reaction area, the ratio ofisomeric alkane to olefins in the reaction process is increased, an addition reaction between olefins is avoided, and selectivity of target products is improved.

Description

technical field [0001] The invention belongs to the field of petrochemical industry and relates to a moving bed reactor and its application, more specifically, to a moving bed reactor and its application in solid acid alkylation reaction. Background technique [0002] At present, one of the most important tasks of the oil refining industry is to provide transportation fuel. As an important transportation fuel, gasoline is widely used in transportation and other industries. According to statistics, by 2030, the global gasoline demand will increase by 22%. Therefore, with the increase of gasoline consumption and the increasingly stringent environmental protection standards, how to solve the problem of clean gasoline production has gradually become a hot research and discussion topic. [0003] Under the action of strong acid, the technology of generating alkylated oil from isoparaffins and olefins provides the possibility for clean production of gasoline. This kind of alkylat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/12C10G50/00
CPCB01J8/12C10G50/00
Inventor 龙军朱丙田侯栓弟武雪峰毛俊义唐晓津胡立峰李永祥
Owner CHINA PETROLEUM & CHEM CORP
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