Preparation technology and application of porous defect carbon material derived from petroleum coke

A technology of porous carbon materials and petroleum coke, which is applied in the direction of carbon preparation/purification, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of environmental secondary pollution, strong alkali and high chemical corrosion, and achieve optimization Utilization, simple operation, and the effect of increasing the added economic value

Inactive Publication Date: 2019-02-22
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the activation process of this type of work, the strong alkali and strong acid reagents used are highly chemically corrosive, and easily cause secondary pollution to the environment

Method used

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  • Preparation technology and application of porous defect carbon material derived from petroleum coke
  • Preparation technology and application of porous defect carbon material derived from petroleum coke
  • Preparation technology and application of porous defect carbon material derived from petroleum coke

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) The petroleum coke raw material is placed in a pulverizer for preliminary grinding and sieving treatment to obtain pretreated petroleum coke powder with a size of 1-20 μm.

[0029] (2) Weigh urea and petroleum coke powder (molar ratio 5:1) and mix them in a stainless steel ball mill tank, add zirconia balls (3mm in diameter, 40g), assemble them in a planetary ball mill, set the speed at 400rpm, and run the ball mill every 5 minute interval, the interval time is 2.5 minutes, and the total running time is 12 hours.

[0030] (3) Put the ball-milled material into a quartz boat and place it in a tube furnace with nitrogen as a protective gas. The initial temperature is room temperature, and the temperature is raised to 1000°C at 5°C / min, and kept at this temperature for 2 hours, and then After natural cooling down to room temperature, the obtained black solid is the porous carbon material derived from petroleum coke.

[0031] (4) Put the carbon material derived from oil...

Embodiment 2

[0037] (1) The petroleum coke raw material is placed in a pulverizer for preliminary grinding and sieving treatment to obtain pretreated petroleum coke powder with a size of ~1-20 μm.

[0038] (2) Weigh melamine and petroleum coke powder (molar ratio 3:1) and mix them in a stainless steel ball mill tank, add zirconia balls (3mm in diameter, 30g), assemble them in a planetary ball mill, set the speed at 500rpm, and run the ball mill every 5 minute interval, the interval time is 2.5 minutes, and the total running time is 24 hours.

[0039] (3) The material after ball milling was put into a porcelain ark, placed in a tube furnace with argon as a protective gas, the initial temperature was room temperature, the temperature was raised to 900 °C at 10 °C / min, and kept at this temperature for 2 hours, Then naturally cool down to room temperature to obtain a porous carbon material.

[0040](4) Put the porous carbon material into a porcelain ark and place it in a muffle furnace. The i...

Embodiment 3

[0042] (1) The petroleum coke raw material is placed in a pulverizer for preliminary grinding and sieving treatment to obtain pretreated petroleum coke powder with a size of ~1-20 μm.

[0043] (2) Weigh urea and petroleum coke powder (molar ratio 15:1) and mix them in a stainless steel ball mill tank, add zirconia balls (3mm in diameter, 30g), assemble them in a planetary ball mill, set the speed at 400rpm, and run the ball mill every 10 minute interval, the interval time is 5 minutes, and the total running time is 12 hours.

[0044] (3) The material after ball milling was put into a porcelain ark, placed in a tube furnace with nitrogen as a protective gas, the initial temperature was room temperature, the temperature was raised to 800 °C at 5 °C / min, and kept at this temperature for 4 hours, and then Naturally cooling down to room temperature, the porous carbon material is obtained.

[0045] (4) Put the porous carbon material into a porcelain ark and place it in a muffle fur...

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Abstract

The invention belongs to the field of resource utilization of wastes and preparation of catalytic materials and discloses a preparation technology of a porous defect carbon material derived from petroleum coke and application of the porous defect carbon material to a catalytic oxidation desulphurization reaction process of diesel oil. According to the porous defect carbon material, the petroleum coke is used as a raw material, and urea, melamine or biuret and the like are used as a pore-forming agent; then a multi-step high-temperature calcination and activation process is carried out to realize successful preparation of the porous defect carbon material. The porous defect carbon material prepared by the preparation technology has abundant active sites and the surface of the material contains a lot of oxygen-containing functional groups; and the porous defect carbon material has a mesoporous structure and is an excellent catalyst which is used as active molecular oxygen to oxidize andremove aromatic sulfides including dibenzothiophene and the like in the diesel oil. The porous defect carbon material is used as a metal-free catalyst and can be dispersed relatively well in a catalysis process; and the porous defect carbon material has excellent catalytic activity, selectivity and recycling performance.

Description

technical field [0001] The invention belongs to the fields of resource utilization of waste and preparation of catalytic materials, and in particular relates to a preparation process of a porous carbon material derived from petroleum coke and its use in catalytic oxidation to remove organic sulfides in diesel oil. Background technique [0002] Petroleum contains a large amount of sulfide, which cannot be completely removed during the refining process, and part of it exists in natural gas, gasoline, diesel and aviation kerosene. Combustion of sulfur compounds in oil will produce sulfur oxides (SO x ), not only can cause acid rain, but also indirectly induce the emission of PM 2.5 particles, which has become one of the main causes of environmental problems such as smog. Therefore, the cleanliness and resource utilization of fuel oil has become a meaningful research topic. At present, the commonly used desulfurization technologies mainly include: hydrodesulfurization, oxidati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/05B01J21/18
CPCB01J21/18B01J35/1004C01B32/05
Inventor 何静朱文帅孙海斌吴沛文徐欢欢李华明
Owner JIANGSU UNIV
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