Supported copper-based adsorbent and preparation method thereof

An adsorbent and load-type technology, applied in separation methods, chemical instruments and methods, reagents, etc.

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

The copper-based adsorbent uses petroleum coke-based activated carbon as the carrier, overcomes the problem that the copper-based adsorbent with activated carbon as the carrier is prone to oxide aggregation during the preparation process, has the advantages of highly dispersed active components and excellent adsorption performance, and Simple operation, low production cost, less environmental pollution

Method used

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  • Supported copper-based adsorbent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Grind 100g of petroleum coke into powder, then mix it with 9.47g of sodium tetrachlorocuprate and 300g of sodium hydroxide, place it in a tube furnace, and raise the temperature to 800°C for 40 minutes under nitrogen atmosphere. After the activation, the temperature was lowered to 200 °C under a nitrogen atmosphere, and 5% (volume fraction) O 2 / Ar mixed gas treatment for 10 min.

[0044] Weigh an appropriate amount of glucose aqueous solution with a concentration of 10wt%, add it to the sample obtained above, and stir in a water bath at 50°C for 60 minutes. The obtained sample was ground into powder, weighed, mixed with deionized water at a mass ratio of 1:15, fully stirred, and then solid-liquid separated until the pH value of the filtrate was neutral, and the obtained solid sample was placed in a vacuum drying oven. Under vacuum conditions, dry at 150°C for 6 hours to obtain an adsorbent with a mass of 5% Cu in terms of elements, which is denoted as C-1.

Embodiment 2

[0046] Grind 100g of petroleum coke into powder, then mix it with 46.83g of sodium tetrachlorocuprate and 300g of potassium bicarbonate, and place it in a microwave heating furnace with a microwave frequency of 2450MHz. Under the condition of a microwave power of 0.3kw, the Under a nitrogen atmosphere, the temperature was raised to 900°C for activation for 20 minutes. After the activation, the temperature was lowered to 300 °C under a nitrogen atmosphere, and 5% (volume fraction) O 2 / Ar mixed gas treatment for 30min.

[0047] Weigh an appropriate amount of glucose aqueous solution with a concentration of 20wt%, add it to the sample obtained above, and stir in a 90°C water bath for 20min. The obtained sample was ground into powder, weighed, mixed with deionized water at a mass ratio of 1:15, fully stirred, and then solid-liquid separated until the pH value of the filtrate was neutral, and the obtained solid sample was placed in a vacuum drying oven. Under vacuum conditions, ...

Embodiment 3

[0049] Grind 100g of petroleum coke into powder, then mix it evenly with 32.56g of sodium tetrachlorocuprate and 300g of potassium hydroxide, place it in a microwave heating furnace with a microwave frequency of 2450MHz, and vacuum it under the condition that the microwave power is 0.3kw Then, the temperature was raised to 500°C and kept constant for 40 minutes, then nitrogen gas was introduced to normal pressure, and the temperature was raised to 800°C for 20 minutes under the condition of microwave power of 0.3kw for activation. After the activation, the temperature was lowered to 250 °C under a nitrogen atmosphere, and 5% (volume fraction) O 2 / Ar mixed gas treatment for 20min.

[0050] Weigh an appropriate amount of glucose aqueous solution with a concentration of 15wt%, add it to the sample obtained above, and stir in a 70°C water bath for 40min. The obtained sample was ground into powder, weighed, mixed with deionized water at a mass ratio of 1:15, fully stirred, and th...

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Abstract

The invention discloses a supported copper-based adsorbent and a preparation method thereof. The preparation method comprises the following steps: 1, mixing petroleum coke, a copper-containing compound and an activating agent to be uniform and then activating the same; (2) after the activation is finished, cooling in an inert atmosphere, and then carrying out further treatment in the presence of amixed gas of the inert atmosphere and oxygen; and (3) mixing the sample obtained in the step (2) with an organic matter solution containing hydroxyl for treatment, and washing and drying the obtainedsample to obtain the adsorbent. The preparation method overcomes the problem of easy oxide aggregation in the preparation process of the copper-based adsorbent taking activated carbon as a carrier, has the advantages of high dispersion of active components, excellent adsorption performance and the like, and is simple to operate, low in production cost and small in environmental pollution.

Description

technical field [0001] The invention belongs to the field of petrochemical industry, and relates to an adsorption material and a preparation method thereof, in particular to a copper-based adsorbent with activated carbon as a carrier and a preparation method thereof. Background technique [0002] With the rapid development of C1 chemistry, CO has become an important basic chemical raw material. CO is often associated with H 2 , N 2 , CO 2 and CH 4 It is a very important problem in the chemical industry to purify CO or to remove CO from the mixed gas containing these gases. Purifying CO from mixed gas can not only provide important raw materials for chemical production, but also improve the effective utilization of industrial waste gas and avoid pollution to the environment. In addition, the presence of trace amounts of CO in industrial gases can cause catalyst poisoning in some synthesis reactions, which is extremely unfavorable to industrial production. For example, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30B01D53/02
CPCB01J20/20B01J20/0237B01J20/28066B01J20/3078B01D53/02B01D2257/502B01D2257/7022B01D2257/30B01D2257/7027Y02P10/20
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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