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Olefin hydroformylation method

A hydroformyl and alkene technology, which is applied in chemical instruments and methods, organic chemistry, chemical/physical processes, etc., can solve the problems of low selectivity of target products and low reaction conversion rate, optimize effective distribution, and improve reaction efficiency. , the effect of easy operation

Active Publication Date: 2014-05-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is that in the prior art, the reaction conversion rate is low and the target product selectivity is low in the olefin hydroformylation reaction process

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Attached figure 1 The shown device adopts the rhodium catalyst prepared in Example 1 of the document CN200510085899.2 as the catalyst, and the olefin is selected from propylene, and the molar ratio of hydrogen: CO: propylene: Rh is 1: 1: 0.8 in terms of total moles. : 0.2; under the condition that the molar ratio of the first mixed gas of hydrogen, CO and propylene to the second mixed gas of hydrogen, CO and propylene is 20:1, the first mixed gas, the second mixed gas and the components containing liquid catalyst are respectively introduced from the first gas inlet 1, the second gas inlet 10 and the liquid inlet 4 into the method of hydroformylation of olefins in the rotating packing layer 2, the rotating packing layer rotating speed is adjusted to 1000rpm, and the The liquid catalyst-containing component introduced by the liquid inlet line 5 is merged with the second gas introduced through the second gas inlet 10 and then introduced into the liquid inlet 4 of the metho...

Embodiment 2

[0027] Attached figure 1 The shown device adopts the rhodium catalyst prepared in the embodiment 2 of the document CN200510085899.2 as the catalyst, and the olefin is selected from butene, and the molar ratio of hydrogen: CO: butene: Rh is 1:1 in terms of total moles. : 0.7: 0.2; under the condition that the molar ratio of the first mixed gas of hydrogen, CO and butene to the second mixed gas of hydrogen, CO and butene is 30:1, the first mixed gas, the second Two streams of mixed gas and components containing liquid catalyst are respectively introduced into olefins from the first gas inlet 1, the second gas inlet 10 and the liquid inlet 4 for hydroformylation in the rotating packing layer 2, and the rotating packing layer speed is adjusted to 500rpm, the liquid catalyst-containing component introduced through the liquid inlet line 5 is merged with the second gas introduced through the second gas inlet 10 and then introduced into the liquid inlet 4 of the method for hydroformyl...

Embodiment 3

[0029] Attached figure 1The shown device adopts the rhodium catalyst prepared in Example 3 of the document CN200510085899.2 as the catalyst, and the olefin is selected from butene, and the molar ratio of hydrogen: CO: butene: Rh is 1:1 in terms of total moles. : 0.85: 0.1; under the condition that the molar ratio of the first mixed gas of hydrogen, CO and butene to the second mixed gas of hydrogen, CO and butene is 30:1, the first mixed gas, the second Two streams of mixed gas and components containing liquid catalyst are respectively introduced into olefins from the first gas inlet 1, the second gas inlet 10 and the liquid inlet 4 for hydroformylation in the rotating packing layer 2, and the rotating packing layer speed is adjusted to 2000rpm, the liquid catalyst-containing component introduced through the liquid inlet line 5 is merged with the second gas introduced through the second gas inlet 10 and then introduced into the liquid inlet 4 of the method for hydroformylation ...

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Abstract

The invention relates to an olefin hydroformylation method, and mainly solves the technical problems in the prior art that the reaction conversion is low and the target product has low selectivity in the olefin hydroformylation reaction process. The method adopts C2-C8 olefin, carbon monoxide and hydrogen as the raw material and a rhodium-containing liquid solution as the catalyst, and comprises the step that the raw material and the rhodium-containing liquid solution catalyst enter an efficient reactor for contact reaction, so as to produce a liquid effluent containing aldehyde under the conditions that the reaction temperature is 40-160 DEG C, the reaction pressure is 0.5-5.0MPa and the olefin / rhodium molar ratio is 0.5-30:1. By adopting the technical scheme, the above problems are better solved and the method provided by the invention can be used for industrial increase production of aldehyde through olefin hydroformylation.

Description

technical field [0001] The invention relates to a method for hydroformylation of olefins, in particular to a method for hydroformylation of hydrocarbons, carbon monoxide and hydrogen under the action of a catalyst to generate corresponding aldehydes by using a high-efficiency reactor. Background technique [0002] Hydroformylation of olefins with carbon monoxide and hydrogen under the action of a catalyst: [0003] [0004] Aldehydes can be hydrogenated to produce corresponding alcohols. The production capacity of synthesizing alcohol by this method in the world is in the millions of tons per year. Hydroformylation reaction of ethylene or propylene with carbon monoxide and hydrogen under the action of rhodium carbonyl catalyst to generate propionaldehyde or butyraldehyde, and further hydrogenation to generate propanol or butanol is one of the important chemical processes. [0005] The hydroformylation reactors currently used in industrial production, whether they are ta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C47/02C07C45/50B01J8/10
Inventor 刘俊涛王万民刘国强
Owner CHINA PETROLEUM & CHEM CORP
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