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A device and method for separating aldehyde and catalyst in olefin hydroformylation to aldehyde

A technology of olefin hydroformyl and catalyst, which is applied in the field of separation, can solve problems such as increased equipment investment and operating costs, insufficient waste gas utilization, and incomplete separation of catalysts, and achieves the goals of reducing energy consumption, prolonging service life, and improving separation effects Effect

Active Publication Date: 2022-06-21
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cause unnecessary losses or increase device investment and operating costs
[0007] That is to say, at this stage, there are still problems such as insufficient utilization of waste gas and incomplete separation of catalysts in olefin hydroformylation.

Method used

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  • A device and method for separating aldehyde and catalyst in olefin hydroformylation to aldehyde

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] This embodiment provides a device for separating aldehydes and catalysts in the production of aldehydes by hydroformylation of olefins. like figure 1 shown; the outlet of the falling film evaporator 1 is connected to the inlet of the collection separator 2;

[0069] The liquid outlet of the collection separator 2 is connected with the feed port of the pressurized impurity removal device 4;

[0070] The air outlet of the collecting separator 2 is connected with the air inlet of the separating and pressurizing device 3;

[0071] The falling film evaporator 1 is provided with a tail gas inlet for aldehyde production by hydroformylation of olefins.

[0072] The falling film evaporator 1 is provided with a liquid phase material inlet;

[0073] Described liquid phase material import is the import of liquid phase product in olefin hydroformylation to make aldehyde;

[0074] The collection separator 2 is a gas-liquid separation tank;

[0075] The separation and pressurizat...

Embodiment 2

[0078] The present embodiment provides a device for separating aldehyde and catalyst in the production of aldehyde by hydroformylation of olefin, the separation device includes a falling film evaporator 1, a collection separator 2, a separation and pressurization device 3 and a pressurized decontamination device 4;

[0079] The outlet of the falling film evaporator 1 is connected to the inlet of the collection separator 2;

[0080] The liquid outlet of the collection separator 2 is connected with the feed port of the pressurized impurity removal device 4;

[0081] The air outlet of the collecting separator 2 is connected with the air inlet of the separating and pressurizing device 3;

[0082] The collection separator 2 is provided with an inlet of the tail gas for aldehyde production by hydroformylation of olefins.

[0083] The falling film evaporator 1 is provided with a liquid phase material inlet;

[0084]Described liquid phase material import is the import of liquid phas...

Embodiment 3

[0089] The present embodiment provides a device for separating aldehyde and catalyst in the production of aldehyde by hydroformylation of olefin, the separation device includes a falling film evaporator 1, a collection separator 2, a separation and pressurization device 3 and a pressurized decontamination device 4;

[0090] The outlet of the falling film evaporator 1 is connected to the inlet of the collection separator 2;

[0091] The liquid outlet of the collection separator 2 is connected with the feed port of the pressurized impurity removal device 4;

[0092] The air outlet of the collecting separator 2 is connected with the air inlet of the separating and pressurizing device 3;

[0093] The separation and pressurization 3 is provided with a tail gas inlet for aldehyde production by hydroformylation of olefins.

[0094] The falling film evaporator 1 is provided with a liquid phase material inlet;

[0095] Described liquid phase material import is the import of liquid ph...

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Abstract

The invention relates to a device and method for separating aldehydes and catalysts in olefin hydroformylation to aldehydes. The separation device includes a falling film evaporator, a collection separator, a separation pressurization device and a pressurization removal device; The discharge port of the film evaporator is connected with the feed port of the collection separator; the liquid discharge port of the collection separator is connected with the feed port of the pressurized impurity removal device; the collection separator The gas outlet is connected to the air inlet of the separation and pressurization device; at least one of the falling film evaporator, collecting separator or separation and pressurization device is provided with an inlet for the tail gas of olefin hydroformylation to aldehyde. The device provided by the invention can effectively improve the separation effect of the separation system and improve the hydroformylation in the separation process by using the tail gas of the hydroformylation reaction as a stripping gas or / and participating in the separation of the hydroformylation reaction product-catalyst with the recycle gas Catalyst and aldehyde loss.

Description

technical field [0001] The invention relates to the field of separation, in particular to a device and a method for separating aldehyde and catalyst in the production of aldehyde by hydroformylation of olefin. Background technique [0002] At present, domestic refining capacity is increasing, and the output of C2-C8 and other olefins in refineries has surged. Only part of the fractions are further utilized, and a large number of C3, C4 and other fractions are burned as fuel or sold as liquefied gas. The low-carbon olefin hydroformylation process has opened up a way of efficient utilization of olefins, which can open up the route between oil refining and chemical industry, and take the road of differentiated development of characteristic chemical industry. [0003] As a class of important chemical products and chemical raw materials, aldehydes are mainly used in the production of chemical intermediates and polymer monomers such as acids, alcohols, ketoximes and alkenals. Age...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/00B01D3/34C07C45/50C07C45/78C07C45/80C07C47/02C07C47/12
CPCB01J8/005B01D3/343C07C45/50C07C45/78C07C45/783C07C45/786C07C45/80C07C47/02C07C47/12
Inventor 吴青郭雷曲顺利杨璐鹿晓斌仇德朋王江涛徐国峰贺同强
Owner CHINA NAT OFFSHORE OIL CORP
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