Catalyst for synthesis of ethanol from synthetic gas, preparation method and application thereof

A catalyst, synthesis gas technology, applied in the preparation of organic compounds, heterogeneous catalyst chemical elements, physical/chemical process catalysts, etc. , the effect of simple preparation process

Active Publication Date: 2017-03-22
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] From the above research results, it is found that in the existing synthetic ethanol catalysts, most of the modification of Cu-based catalysts adopts FT synthesis components Fe and Co, and the alcohol distribution in the product conforms to the ASF distribution, the carbon chain distribution is wide, and there are alcohols.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1:

[0031] 1) Weigh 1.6g Cu(NO 3 ) 2 ·3H 2 O, prepare 0.02M copper nitrate solution with ethanol as solvent. Weigh 30g γ-Al 2 O 3 As a carrier, it was added to the prepared copper nitrate solution, immersed in ultrasonic waves for 1 h at room temperature, dried at 100 °C for 16 hours, and calcined at 400 °C for 6 hours in a muffle furnace to obtain CuO / γ-Al 2 O 3 catalyst.

[0032] 2) Weigh 18.3g Zr (NO 3 ) 4 ·5H 2O, take water as solvent, prepare 0.02M zirconium nitrate solution, add CuO / γ-Al prepared above 2 O 3 The catalyst was impregnated with ultrasonic waves for 1 hour, dried at 100 °C for 16 hours, and calcined at 1300 °C for 3 hours in a muffle furnace to obtain ZrO 2 -CuO / γ-Al 2 O 3 catalyst.

[0033] 3) Weigh 0.6g K 2 CO 3 , take water as solvent, prepare 0.02M potassium carbonate solution, add the ZrO obtained above 2 -CuO / γ-Al 2 O 3 The catalyst was impregnated with ultrasonic waves for 1 hour, dried at 100 °C for 16 hours, and c...

Example Embodiment

[0035] Example 2:

[0036] 1) Weigh 25.2g Cu(NO 3 ) 2 ·3H 2 O, with citric acid aqueous solution as solvent, prepare 0.09M copper nitrate solution. Weigh 30g γ-Al 2 O 3 As a carrier, it was added to the prepared copper nitrate solution, immersed in ultrasonic waves for 1 h at room temperature, dried at 100 °C for 16 hours, and calcined at 400 °C for 6 hours in a muffle furnace to obtain CuO / γ-Al 2 O 3 catalyst.

[0037] 2) Weigh 8.2g Zr (NO 3 ) 4 ·5H 2 O, take water as solvent, prepare 0.09M zirconium nitrate solution, add CuO / γ-Al prepared above 2 O 3 The catalyst was impregnated with ultrasonic waves for 1 hour, dried at 100 °C for 16 hours, and calcined at 1300 °C for 3 hours in a muffle furnace to obtain ZrO 2 -CuO / γ-Al 2 O 3 catalyst.

[0038] 3) Weigh 3.15g K 2 CO 3 , take water as solvent, prepare 0.09M potassium carbonate solution, add the ZrO obtained above 2 -CuO / γ-Al 2 O 3 The catalyst was impregnated with ultrasonic waves for 1 hour, dried at 10...

Example Embodiment

[0040] Example 3:

[0041] 1) Weigh 11.8g Cu(NO 3 ) 2 ·3H 2 O, take urea aqueous solution as solvent, prepare 0.05M copper nitrate solution. Weigh 30g γ-Al 2 O 3 As a carrier, it was added to the prepared copper nitrate solution, immersed in ultrasonic waves for 1 h at room temperature, dried at 100 °C for 16 hours, and calcined at 400 °C for 6 hours in a muffle furnace to obtain CuO / γ-Al 2 O 3 catalyst.

[0042] 2) Weigh 13.6g Zr (NO 3 ) 4 ·5H 2 O, take water as solvent, prepare 0.05M zirconium nitrate solution, add CuO / γ-Al prepared above 2 O 3 The catalyst was impregnated with ultrasonic waves for 1 hour, dried at 100 °C for 16 hours, and calcined at 1300 °C for 3 hours in a muffle furnace to obtain ZrO 2 -CuO / γ-Al 2 O 3 catalyst.

[0043] 3) Weigh 1.7g K 2 CO 3 , take water as solvent, prepare 0.05M potassium carbonate solution, add the ZrO obtained above 2 -CuO / γ-Al 2 O 3 The catalyst was impregnated with ultrasonic waves for 1 hour, dried at 100 °C fo...

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Abstract

The invention relates to a catalyst for synthesis of ethanol from synthetic gas. The catalyst includes the following components by weight percentage: 1.0-20.0% of copper oxide, 5.0-15.0% of zirconia, 1.0-6.0% of potassium oxide, and 60.0-90.0% of a carrier. The catalyst and the method provided by the invention have the advantages of high selectivity, simple preparation process and mild operation process conditions.

Description

technical field [0001] The invention relates to a catalyst for synthesizing ethanol and its preparation method and application, in particular to a catalyst for directional synthesis of ethanol from synthesis gas, its preparation method and application. Background technique [0002] Ethanol has a wide range of uses and can be used as a solvent, thinner and disinfectant, and is widely used in medicine, paint, sanitary products, cosmetics, oil and other industries. Ethanol can be used as an organic chemical raw material to manufacture acetaldehyde, ether, ethyl acetate, acetic acid, chloroacetic acid, etc., and to derive many intermediates of medicines, dyes, pesticides and other products. In addition, ethanol is a traditional energy substitute with great application potential. It is a high-quality liquid fuel with low sulfur and ash content and less harm to the human body; after adding a certain amount of ethanol to gasoline , the oxygen content of the mixed fuel increases, a...

Claims

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Application Information

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IPC IPC(8): B01J23/78C07C29/154C07C31/08
CPCB01J23/002B01J23/78B01J2523/00C07C29/154B01J2523/13B01J2523/17B01J2523/31B01J2523/48C07C31/08
Inventor 谭猗生李小丽解红娟武应全张涛宋法恩
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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