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A kind of method of catalytic synthesis organic compound and its catalyst and application

A technology of organic compounds and synthesis methods, applied in the application field of converting CO2 into organic compounds, can solve the problems of excessive emissions and high energy consumption

Active Publication Date: 2022-03-25
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are few reports on the catalytic hydrogenation of carbonates to organic compounds at low temperatures, and CO at high temperatures 2 Or carbonate catalytic conversion reaction will bring high energy consumption and CO 2 Therefore, the development of low temperature or ambient temperature (~ 25-130 ℃) CO 2 and / or new catalytic systems for the conversion of carbonates into high value-added products are of great importance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, the Ru of iron oxide support, Pt metal catalyst (Ru-Pt / Fe 3 o 4 )preparation

[0020] The concentration of 0.26M NaOH ethylene glycol solution and H 2 PtCl 6 ·nH 2 The ethylene glycol solution of O (1 g / 50 ml) was mixed under stirring, and the obtained mixed solution was microwave-heated at 160° C. for 5 min in a nitrogen atmosphere to obtain a Pt colloidal solution. Add hydrochloric acid to the Pt colloidal solution, centrifuge to obtain Pt metal nanoclusters, disperse the Pt metal nanoclusters in acetone, and add Fe to it 3 o 4 and stirred to obtain Fe 3 o 4 Supported Pt metal nanoparticles (Pt / Fe 3 o 4 ). Pt / Fe 3 o 4 Disperse to 0.1M NaHCO 3 In the aqueous solution, an appropriate amount of RuCl was added to it 3·3H 2 Aqueous solution of O (1g / 50ml), after stirring, filter under reduced pressure to obtain Fe 3 o 4 Loaded RuO x and Pt nanoparticles (RuO x -Pt / Fe 3 o 4 ). RuO x -Pt / Fe 3 o 4 H in water at 150°C 2 (2.8MPa) reductio...

Embodiment 2、130

[0021] Example 2 Catalyzing FeCO at 130°C 3 Hydrogenation to multi-carbon hydrocarbons

[0022] Each 15 milliliters of water and hexanaphthene are charged into autoclave, and the Ru-Pt / FeCO prepared in 0.3 gram embodiment 1 3 , fill the reactor with 4MPa hydrogen, and react at 130° C. for 12 hours under stirring. The reaction products were analyzed by gas chromatography and gas chromatography. The results showed that FeCO 3 The transformation efficiency of the product is 15%, and the product is mainly the hydrocarbon (C 1 -C 26 ), of which polycarbonate (C 2 + ) selectivity reaches 26%, the selectivity of alkanes is 25%, and the selectivity of alkenes is 1.2%. The selectivity of alcohol in the product is 7%, wherein multi-carbon alcohol (C 2 + ) accounted for 70%.

Embodiment 3、130

[0023] Catalyzed Fe at 130°C in Example 3 13 CO 3 Hydrogenation to multi-carbon hydrocarbons

[0024] CO in Example 1 2 replace with 13 CO 2 , prepared according to the method of Example 1 to obtain Ru-Pt / Fe 13 CO 3 . At 130°C, use 4MPa H in a mixed solvent of water (15ml) and cyclohexane (15ml) 2 Processing Ru-Pt / Fe 13 CO 3 . After 24 h of reaction, the product was detected by GC-MS. The results showed that the products were mainly hydrocarbons with 1-26 carbon atoms (C 1 -C 26 ), where the signal at m / z 77 is the molecular ion of pentane [ 13 C 5 h 12 ] ·+ peak, indicating that the C in the generated polycarbonate originates from the carbonate group in the ferrous carbonate.

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Abstract

The invention discloses a method for catalyzing and synthesizing organic compounds, a catalyst and application thereof. The present invention is the first to catalyze carbonate and / or CO under mild conditions (25-130°C) 2 with H 2 Reaction to synthesize polycarbonate hydrocarbons or polycarbonate alcohols. The carbonate in the carbonate undergoes catalytic hydrogenation and catalytic coupling reaction under mild conditions to generate multi-carbon hydrocarbons and / or multi-carbon alcohols, and this reaction can be coupled with the carbonation reaction of species such as Fe on the surface of the catalyst to realize the conversion of CO 2 Up to the conversion of multi-carbon hydrocarbons or poly-alcohols, which is a new low energy consumption from carbonate and / or CO 2 Conversion pathways to multicarbon compounds.

Description

technical field [0001] The present invention relates to a method for catalytic conversion of carbonates into organic compounds, especially a method for achieving the above-mentioned conversion under mild conditions, and the method for converting CO 2 Transformation into applications in organic compounds. The organic compounds include multi-carbon compounds. Background technique [0002] CO 2 The greenhouse effect and seawater acidification caused by the excessive emission of carbon dioxide have brought great adverse effects on the sustainable development of human society, and the huge energy demand has made the dependence on limited fossil energy continue to increase. CO 2 It is an inexpensive and non-toxic carbon resource that converts CO 2 Converting high value-added products (fuel or chemical raw materials) through catalytic hydrogenation can not only reduce dependence on fossil resources such as petroleum, but also effectively reduce CO 2 emissions, and alleviate en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/232C07C1/32C07C1/12C07C9/00C07C9/04C07C29/156C07C31/04C07C31/08C10G2/00C10L1/02C10L1/04
CPCB01J27/232C07C1/325C07C1/12C07C29/156C10G2/50C10L1/02C10L1/04C07C2527/232C07C9/00C07C9/04C07C31/04C07C31/08Y02P20/52
Inventor 王远于聿律黄进
Owner PEKING UNIV
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