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Copper-doped activated carbon composite material and preparation method thereof

A composite material and activated carbon technology, applied in chemical instruments and methods, carbon compounds, other chemical processes, etc., can solve the problems of decreased activity and easy falling off

Active Publication Date: 2020-07-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the binding force between the metal and the carrier activated carbon is only due to the van der Waals force, which is easy to fall off, resulting in a decrease in activity

Method used

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  • Copper-doped activated carbon composite material and preparation method thereof
  • Copper-doped activated carbon composite material and preparation method thereof
  • Copper-doped activated carbon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Grind 100g of petroleum coke into powder, then mix it evenly with 31.29g of copper nitrate and 300g of potassium hydroxide, place it in a microwave heating furnace with a microwave frequency of 2450MHz, and raise the temperature under a nitrogen atmosphere under the condition of a microwave power of 0.3kw Activate at 800°C for 40 minutes.

[0045] Grind the above-mentioned activated sample into powder, weigh it, mix it with deionized water at a mass ratio of 1:15, stir thoroughly, and then carry out solid-liquid separation until the pH value of the filtrate is neutral, and the obtained solid sample is placed in vacuum drying In the oven, dry at 150°C for 6 hours under vacuum conditions to obtain a composite material with a mass content of 15% Cu in terms of elements, which is denoted as C-1.

Embodiment 2

[0047] Weigh 50g of ammonium phosphate, dissolve it in 200mL of deionized water to obtain solution A; grind 100g of petroleum coke into powder, then add it to solution A, let it stand for 1.5h, then filter, and put the obtained solid sample in an oven at 110°C Dry for 5h. At 200°C, pretreat the dried solid sample with water vapor for 3 hours (the volumetric space velocity of the water vapor gas is 500 hours -1 ), then raise the temperature to 400°C, continue pretreatment for 3h, and then cool to 60°C under nitrogen protection to obtain pretreated petroleum coke.

[0048] Grind the above-mentioned pretreated petroleum coke into powder, then mix it with 9.10g of copper nitrate and 300g of sodium hydroxide, place it in a tube furnace, and raise the temperature to 800°C for 40min activation under nitrogen atmosphere.

[0049] Grind the above-mentioned activated sample into powder, weigh it, mix it with deionized water at a mass ratio of 1:15, stir thoroughly, and then carry out s...

Embodiment 3

[0051] Weigh 50g of ammonium phosphate, dissolve it in 200mL of deionized water to obtain solution A; grind 100g of petroleum coke into powder, then add it to solution A, let it stand for 1.5h, then filter, and put the obtained solid sample in an oven at 110°C Dry for 5h. At 200°C, pretreat the dried solid sample with water vapor for 3 hours (the volumetric space velocity of the water vapor gas is 800 hours -1 ), then raise the temperature to 400°C, continue pretreatment for 3h, and then cool to 60°C under nitrogen protection to obtain pretreated petroleum coke.

[0052] Grind the above-mentioned pretreated petroleum coke to powder, then mix it with 45.02g of copper nitrate, 100g of potassium bicarbonate, and 200g of potassium hydroxide, place it in a microwave heating furnace with a microwave frequency of 2450MHz, and vacuum it at a microwave power of 0.3 Under the condition of kw, the temperature was raised to 400°C and kept constant for 60 minutes, then nitrogen gas was in...

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Abstract

The invention discloses a copper-doped activated carbon composite material and a preparation method thereof. The composite material comprises doped element copper and petroleum coke-based activated carbon. The preparation method comprises the following steps: (1) uniformly mixing a copper-containing precursor compound, petroleum coke and an activating agent, and activating; and (2) washing and drying the sample obtained in the step (1) to obtain the composite material. In the copper-doped active carbon composite material prepared by the method, the active metal copper is highly dispersed on the surface of the active carbon in a reduction state, and the combination effect with the active carbon is relatively strong, so the problem of metal falling cannot occur, and the preparation method issimple and feasible.

Description

technical field [0001] The invention belongs to the field of chemical industry, and relates to a loaded highly dispersed copper-based material and a preparation method thereof, in particular to a highly dispersed copper-based material with activated carbon as a carrier and a preparation method thereof. Background technique [0002] Activated carbon has the characteristics of developed pore structure, large surface area, strong adsorption capacity, high mechanical strength and convenient regeneration. It is widely used in industrial and agricultural production, medicine and health, energy storage, environmental protection and other fields. friendly material. At the same time, the chemical properties of activated carbon are stable, resistant to acid, alkali, high temperature and high pressure. These properties make activated carbon one of the excellent catalyst supports in the field of catalysis. [0003] As a good adsorbent and catalyst carrier, activated carbon is increasin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/318C01B32/342C01B32/354B01J20/20B01J20/30B01J23/72B01J23/83B01J29/03B01J29/46B01J29/76H01G11/30H01G11/34H01G11/44
CPCC01B32/318C01B32/342C01B32/354B01J23/72B01J23/83B01J29/46B01J29/7607B01J29/0333B01J20/20B01J20/0237H01G11/30H01G11/34H01G11/44B01J2229/18Y02P20/584
Inventor 孙晓丹宋永一张舒冬张庆军刘继华方向晨
Owner CHINA PETROLEUM & CHEM CORP
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