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Cu-Co base catalyst

A catalyst, cu-co technology, applied in the field of Cu-Co-based catalysts, can solve problems affecting the composition of reaction products and achieve excellent catalytic performance

Inactive Publication Date: 2015-04-29
DALIAN CITY SHAHEKOU DISTRICT SMALL MEDIUM & MICRO ENTERPRISES SERVICE CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

General alcohol synthesis catalysts often have CO conversion function (CO+H 2 O→CO 2 +H 2 ), thus affecting the composition of the reaction product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] a) Add Cu 2+ 、Co 2+ and K + According to 1:2:3 molar ratio as raw material, Cu 2+ and Co 2+ Prepare solution I by mixing the total concentration of the two ions at 1.0 mol / L, and prepare another solution K + Solution II with a concentration of 2mol / L;

[0022] b) Add solution I and solution II dropwise to a Erlenmeyer flask in a water bath at 70°C at the same time, stir, and react at 70°C for 5 hours;

[0023] c) Vacuum filter the resulting precipitate and wash with water until the K in the precipitate is + Rinse until dry.

[0024] d) put the precipitate obtained in step c) in N 2 Baking at 500°C for 3h under protection.

[0025] e) Press the calcined product into tablets and sieve to 30-40 mesh.

Embodiment 2

[0027] a) Add Cu 2+ 、Co 2+ and K + According to 1:3:3 molar ratio as raw material, Cu 2+ and Co 2+ Solution I was prepared by mixing the total concentration of the two ions at 2.8mol / L, and another solution was prepared as K + Solution II with a concentration of 2.7mol / L;

[0028] b) Add solution I and solution II dropwise to a conical flask in a water bath at 60-90°C at the same time, stir, and react at 80°C for 4 hours;

[0029] c) Vacuum filter the resulting precipitate and wash with water until the K in the precipitate is + Rinse until dry.

[0030] d) put the precipitate obtained in step c) in N 2 Baking at 500°C for 4h under protection.

[0031] e) Press the calcined product into tablets and sieve to 40-50 mesh.

Embodiment 3

[0033] a) Add Cu 2+ 、Co 2+ and K + According to 1:3:5 molar ratio as raw material, Cu 2+ and Co 2+ Solution I was prepared by mixing the total concentration of the two ions at 2.3mol / L, and another solution was prepared as K + Solution II with a concentration of 1.6mol / L;

[0034] b) Add solution I and solution II dropwise into a conical flask in a water bath at 60°C, stir, and react at 60°C for 6 hours;

[0035] c) Vacuum filter the resulting precipitate and wash with water until the K in the precipitate is + Rinse until dry.

[0036] d) put the precipitate obtained in step c) in N 2 Baking at 500°C for 5h under protection.

[0037] e) Press the calcined product into tablets and sieve to 60-70 mesh.

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PUM

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Abstract

The invention discloses a Cu-Co base catalyst and a preparation method thereof. The preparation method comprises the following steps: by using a chemical synthesis method and by taking Cu<2+>, Co<2+> and K<+> as raw materials, performing aftertreatment such as water bath reaction and filtration and drying, roasting, and tabletting, thereby preparing the catalyst of 30-70 meshes. The catalyst is applicable to immobilized reactor. The prepared catalyst is applied to synthesized biomass ethanol reaction and is excellent in catalysis property, a Cu-Co based ethanol synthesized catalyst can be synthesized from a product, the influence of CO2 in a synthesized gas is eliminated, and an appropriate H2 / CO ratio is maintained.

Description

technical field [0001] The invention relates to a Cu-Co-based catalyst, which belongs to the field of synthesis of biomass ethanol. Background technique [0002] Since the 1970s, energy development and environmental protection have become two strategic themes for the survival and development of human society. Ethanol is an important chemical raw material, and it is also an ideal energy substitute fuel. It can be used alone as a fuel. When every kilogram of ethanol is completely burned, it can release about 30,000kJ of heat; the general formula can also be used as a mixed fuel, and a certain amount of fuel ethanol is added After gasoline, the oxygen content of the mixed fuel increases, and the octane number increases, which is the most promising alternative fuel for petroleum. [0003] The synthesis gas-to-ethanol process based on coal, natural gas, and biomass has become an important way to efficiently utilize resources and stand out. Compared with fossil energy coal and n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/78
Inventor 秦宏佳
Owner DALIAN CITY SHAHEKOU DISTRICT SMALL MEDIUM & MICRO ENTERPRISES SERVICE CENT