Parallelized jet loop reactors

A loop reactor and reactor technology, applied in the field of liquid devices, can solve the problems of poor reactor capacity, low material conversion coefficient, high structural cost, etc., and achieve the effect of improving flow

Inactive Publication Date: 2011-07-27
EVONIK DEGUSSA GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this system is that its material conversion factor (k L a) Partially lower
In addition, due to the small surface-to-volume ratio, the heat removal is worse
This may necessitate the use of field tubes in the reactor for enlarging the heat exchange surface, as described, for example, in DE 19854637, so that, in addition to the influence of the internal circulation flow, a higher structural outlay has to be taken into account
[0009] Reactors with a slenderness ratio (ratio of reactor height to reactor diameter) H / D > 10 can achieve comparatively larger gas contents, but are not suitable for scaling up due to the small volume
Depending on the resulting reactor height, when the reactor is scaled up to the critical reaction volumes, increasingly high internal pressure losses and thus an extremely high energy consumption result in a marked reduction in the reactor capacity become worse

Method used

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example 2

[0062] Example 2 (according to the present invention)

[0063] In accordance with the present invention, according to Figure 4b In the shown setup with two jet loop reactors arranged in parallel, the reactors have an aspect ratio of 10 and a reaction volume of 5 L each, the reaction is carried out corresponding to the reaction conditions described in Example 1. In the device according to the invention complete conversion was achieved after 75 minutes, with an enantiomeric remainder of 95%. Hydrogen pressure can be reduced to 4Mpa, and no obvious by-product formation was observed.

[0064] The examples show that when the reaction according to the invention is carried out in a plant with two parallel jet loop reactors with a slenderness ratio of 10, it is possible to simultaneously reduce the amount of hydrogen compared to a single reactor with a slenderness ratio of 6. When the partial pressure is increased, the reaction speed is obviously improved.

[0065] Label list

[...

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Abstract

The present invention relates to a device and a method for the continuous conversion of a liquid and a second fluid, wherein the device has at least two jet loop reactors connected parallel to each other and a common outer liquid circulation.

Description

technical field [0001] The invention relates to a device for continuously converting a liquid with at least one other fluid. Background technique [0002] A liquid is an essentially incompressible flowable medium. A gas is a compressible, flowable medium. A fluid is either a liquid or a gas. According to the invention, a solid material which is fluidized, in particular by means of a gas or a liquid, and possibly powdery, is likewise a fluid. [0003] According to the invention, an input liquid is a material or a mixture of materials which is present in the assembly in a fluid state under reaction conditions and which has at least one reactant. By gas is meant a pure gas or a gas mixture which has at least one reactant and optionally an inert gas. An example of a gas with two reactants is a synthesis gas consisting of hydrogen and carbon monoxide, which is used, for example, in hydroformylation. [0004] By jet loop reactor (English jet loop reactor), according to the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/24
CPCB01J2219/00038B01J19/2425B01J19/2465B01J8/1827B01J8/226B01J2208/00221B01J2219/00777B01J2219/00094B01J19/246B01J2208/00849B01J4/002
Inventor M·贝克尔R·弗兰克W·比施肯A·伯尔纳J·霍尔茨
Owner EVONIK DEGUSSA GMBH
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