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Preparation method for petroleum-coke-based mesoporous carbon and application

A technology of coke-based mesoporous and petroleum coke, which is applied in the field of preparation of petroleum coke-based mesoporous carbon, can solve the problems of harsh preparation process conditions and relatively expensive prices, and achieve the effect of high value-added utilization

Active Publication Date: 2017-03-15
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation of mesoporous carbon by the soft template method usually uses phenolic resin as the carbon source, and the preparation process conditions are harsh and the price is relatively expensive.

Method used

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  • Preparation method for petroleum-coke-based mesoporous carbon and application
  • Preparation method for petroleum-coke-based mesoporous carbon and application
  • Preparation method for petroleum-coke-based mesoporous carbon and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) Add 5g of 80-100mesh petroleum coke into a 500mL three-neck flask, add 30mL of concentrated nitric acid and 70mL of concentrated sulfuric acid, and oxidize at 80°C for 3h to finally obtain an amphiphilic carbonaceous material.

[0031] 2) Dissolve 2.4g of F127 in 20mL of sodium hydroxide solution with a pH of 12, stir well to obtain a clear solution.

[0032] 3) Add 0.6 g of amphiphilic carbonaceous material to the mixture obtained in step 2), seal and stir in a water bath at 75 °C for 1 h, then slowly add 5 mL of 1 mol / L hydrochloric acid solution dropwise, continue to seal and stir for 2 h, and finally Evaporate to dryness in a water bath and age in an oven at 100°C for 24h.

[0033] 4) Put the solid obtained in step 3) into a tube furnace, heat up to 350°C at 1°C / min under nitrogen atmosphere, and stabilize for 0.5h, then raise the temperature to 800°C at 3°C / min, and stabilize for 2h; after grinding Finally, wash with 1 mol / L dilute hydrochloric acid, then wash ...

Embodiment 2

[0035] 1) Add 5g of 80-100mesh petroleum coke into a 500mL three-neck flask, add 30mL of concentrated nitric acid and 70mL of concentrated sulfuric acid, and oxidize at 80°C for 3h to finally obtain an amphiphilic carbonaceous material.

[0036] 2) Dissolve 1.2g of F127 in 20mL of sodium hydroxide solution with a pH of 12, stir well to obtain a clear solution.

[0037] 3) Add 0.6 g of amphiphilic carbonaceous material to the mixture obtained in step 2), seal and stir in a water bath at 75 °C for 1 h, then slowly add 2 mL of 1 mol / L hydrochloric acid solution dropwise, continue to seal and stir for 2 h, and finally Evaporate to dryness in a water bath and age in an oven at 120°C for 24h.

[0038] 4) Put the solid obtained in step 3) into a tube furnace, heat up to 350°C at 1°C / min under nitrogen atmosphere, and stabilize for 0.5h, then raise the temperature to 750°C at 3°C / min, and stabilize for 2h; after grinding Finally, wash with 1.5 mol / L dilute hydrochloric acid, then was...

Embodiment 3

[0040] 1) Add 5g of 80-100mesh petroleum coke into a 500mL three-neck flask, add 30mL of concentrated nitric acid and 70mL of concentrated sulfuric acid, and oxidize at 80°C for 3h to finally obtain an amphiphilic carbonaceous material.

[0041] 2) Dissolve 2.4g of F127 in 20mL of sodium hydroxide solution with a pH of 12, stir well to obtain a clear solution.

[0042] 3) Add 0.6 g of amphiphilic carbonaceous material to the mixture obtained in step 2), and stir in a water bath at 40°C for 1 h, then slowly add 5 mL of 1 mol / L hydrochloric acid solution dropwise, continue to stir for 2 h, and finally Evaporate to dryness in a water bath and age in an oven at 100°C for 48h.

[0043] 4) Put the solid obtained in step 3) into a tube furnace, heat up to 350°C at 1°C / min under a nitrogen atmosphere, and stabilize for 0.5h, then raise the temperature to 900°C at 3°C / min, and stabilize for 1.5h; After grinding, wash with 1 mol / L dilute hydrochloric acid, then wash with deionized wate...

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Abstract

The invention relates to the technical field of the nano carbon material, and in particular to a preparation method for petroleum-coke-based mesoporous carbon and an application. The method comprises the following steps: 1) performing concentrated sulfuric acid and concentrated nitric acid oxidation treatments to smashed petroleum coke particles, preparing and obtaining an amphipathicity carbonaceous material; 2) dissolving a templating agent of triblock copolymer in alkaline solution, uniformly stirring, and obtaining settled solution; 3) adding the amphipathicity carbonaceous material obtained in the step 1) into the solution obtained in the step 2), sealing and stirring in the water bath, adding acidic solution, continuously sealing and stirring, finally drying in the water bath, and aging in an oven; and 4) carbonizing solid obtained in the step 3) under the inert atmosphere, grinding, acid-pickling, water-washing, and drying. The method is capable of synthesizing the mesoporous carbon with larger specific surface area and pore volume, and adjustable pore diameter, and realizing the high added-value utilization of the petroleum coke, and can be used as carriers of adsorbents and catalysts of a macromolecular pollutant and electrode materials of a super capacitor.

Description

technical field [0001] The invention relates to the technical field of nano-carbon materials, in particular to a preparation method and application of petroleum coke-based mesoporous carbon. Background technique [0002] Crude oil is distilled to obtain light oil and heavy oil, and the obtained heavy oil undergoes delayed coking and other processes to obtain petroleum coke products. From the appearance, petroleum coke is a black blocky solid with different sizes and irregular shapes, with metallic luster, and the particles have a certain pore structure. More than 95% of its constituent elements are carbon, and the rest contain a small amount of hydrogen and oxygen. , nitrogen, sulfur and metal elements. At present, the coke yield in the delayed coking process is generally 25-30%. The further development of delayed coking technology must solve the problem of effective utilization of petroleum coke in order to increase the added value of petroleum coke. The preparation of po...

Claims

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Application Information

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IPC IPC(8): C01B32/05
CPCC01P2002/72C01P2004/04C01P2006/14C01P2006/16C01P2006/17C01P2006/40
Inventor 高秀丽黄居峰邢伟白鹏阎子峰
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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