Heterogeneous catalytic method and device for olefin hydroformylation to synthesize aldehydes and alcohols

A technology for the synthesis of aldehydes by olefin hydroformylation and heterogeneous catalysis, which is applied in the fields of chemical instruments and methods, preparation of organic compounds, physical/chemical process catalysts, etc., and can solve the problems of low activity and selectivity, low activity and Low selectivity, difficult separation of catalysts and products, etc., to achieve novel and unique technical routes, overcome low activity and selectivity, and simple separation

Active Publication Date: 2016-06-15
中科榆林能源技术运营有限责任公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims at the outstanding problem of difficult separation of catalyst and product in the existing olefin homogeneous hydroformylation process, and the low hydroformylation activity and selectivity existing in the existing heterogeneous hydroformylation catalytic method problem, by using an activated carbon loaded Co 2 A heterogeneous catalyst of C and metallic Co, in which Co 2 The ratio between the two crystal phases of C and metal Co can be regulated, relates to a heterogeneous catalytic process and device for synthesizing aldehydes and alcohols by hydroformylation of olefins, and provides a device and device for implementing the catalyst for hydroformylation reaction. process
The heterogeneous catalytic hydroformylation continuous production process of the present invention solves the problem of difficult separation of catalyst and product in the hydroformylation homogeneous catalytic process, and also overcomes the activity and selection of conventional hydroformylation heterogeneous catalytic processes. It has the advantages of excellent hydroformylation performance, easy separation of product and catalyst, and simple process, and has broad industrial application prospects

Method used

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  • Heterogeneous catalytic method and device for olefin hydroformylation to synthesize aldehydes and alcohols
  • Heterogeneous catalytic method and device for olefin hydroformylation to synthesize aldehydes and alcohols
  • Heterogeneous catalytic method and device for olefin hydroformylation to synthesize aldehydes and alcohols

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Experimental program
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Embodiment 1

[0102] use figure 1 In the reaction apparatus shown, the reaction was carried out under the following reaction conditions.

[0103] The production method uses 15Co 2 C(68)Co(32)0.3La / AC1(Co 2 CCo to Co 2 Compounds of C and metal Co, 68 and 32 are represented as Co 2 C The percentage of the peak height of the main diffraction peak and the metal Co diffraction peak height, AC1 is a coconut shell activated carbon) catalyst, and ethylene and synthesis gas are used as raw materials for hydroformylation. The particle size of the catalyst is 0.3-0.5 mm (the particle size of the catalyst is the same as that of the catalyst inorganic salt precursor), and the reactor adopts a fixed-bed reactor. Before the reaction, the 4ml catalyst inorganic salt precursor in the above-mentioned catalyst preparation example was loaded into the fixed-bed reactor, and N 2 Gas atmosphere drying, roasting, reduction and activation of hydrogen-containing mixed gas, and carbonization of CO-containing gas...

Embodiment 2

[0108] use figure 1 The reaction device shown uses 15Co 2 C(68)Co(32)0.3La / AC1 catalyst is used for hydroformylation reaction with ethylene and synthesis gas as raw materials. The particle size of the catalyst is 0.3-0.5 mm, and 4 mL of the catalyst inorganic salt precursor is loaded into a fixed-bed reactor for the hydroformylation reaction.

[0109] Reaction process is the same as embodiment 1, and wherein reaction temperature is 463K, and pressure is 1.0MPa, 50%CO / 50%H 2 The mixed air velocity is 1000h -1 , ethylene space velocity is 500h -1 . After the reaction was stabilized for 6 hours, the product was analyzed for 12 hours to analyze the composition, and the conversion rate of the hydroformylation reaction and the selectivity of aldehydes and alcohols were calculated. The results are listed in Table 1.

Embodiment 3

[0111] use figure 1 The reaction device shown uses 15Co 2 C(68)Co(32)0.3La / AC1 catalyst is used for hydroformylation reaction with ethylene and synthesis gas as raw materials. The particle size of the catalyst is 2-3 mm, and 4 mL of the catalyst inorganic salt precursor is loaded into a fixed-bed reactor for the hydroformylation reaction.

[0112] Reaction process is the same as embodiment 1, and wherein reaction temperature is 453K, and pressure is 2.0MPa, 50%CO / 50%H 2 The mixed air velocity is 1000h -1 , ethylene space velocity is 300h -1 . After the reaction was stabilized for 6 hours, the product was analyzed for 12 hours to analyze the composition, and the conversion rate of the hydroformylation reaction and the selectivity of aldehydes and alcohols were calculated. The results are listed in Table 1.

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Abstract

The present invention relates to a heterogeneous catalysis process for synthesizing aldehydes and alcohols through olefin hydroformylation, and an apparatus thereof. More particularly, the present invention provides a heterogeneous catalysis method for synthesizing aldehydes and alcohols through olefin hydroformylation, wherein the method comprises that olefin and synthesis gas are continuously fed into a reactor to be in a hydroformylation reaction in the presence of a loaded heterogeneous catalyst, and the generated products such as aldehydes and alcohols continuously flow out from the reactor so as to achieve the separation from the catalyst and the continuous production. The present invention further provides the apparatus for the method, wherein the apparatus comprises the reactor, a pre-heater arranged on the upstream of the reactor and connected with the reactor, a mixer arranged on the upstream of the pre-heater and connected with the pre-heater, and a collecting tank arranged on downstream of the reactor and connected with the reactor. The process and the apparatus of the present invention have advantages of excellent hydroformylation performance, easy product and catalyst separation, and simple process, and further have industrial prospects.

Description

technical field [0001] The invention relates to the synthesis of chemical aldehydes and alcohols, more specifically to a heterogeneous catalytic method and device for olefin hydroformylation to synthesize aldehydes and alcohols. Background technique [0002] Olefins and Syngas (CO+H 2 or CO / H 2 Mixed gas) hydroformylation reaction to prepare aldehydes with one carbon higher than the raw material olefins is the earliest homogeneous catalytic process to realize industrial production, and it is also one of the most important organic chemical production processes today. The products of hydroformylation cover aldehydes with different carbon numbers, and then undergo simple hydrogenation to obtain alcohols. The most important of which is the production of butyraldehyde by hydroformylation of propylene, and then the important plasticizer 2-ethylhexanol is obtained through condensation. In addition, high-carbon plasticizer alcohol (C) synthesized from high-carbon olefins (C≥6) 8...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C27/22C07C45/50C07C47/02C07C29/141C07C31/10C07C31/12C07C31/125B01J27/22
CPCB01J27/22C07C29/141C07C45/50C07C47/02C07C31/10C07C31/12C07C31/125
Inventor 丁云杰董文达朱何俊裴彦鹏王涛严丽
Owner 中科榆林能源技术运营有限责任公司
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