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A method of producing carbon material

A technology of carbon materials and raw oil, which is applied in the field of production of carbon materials, can solve the problems of unstable needle coke streamlined texture and high thermal expansion system, and achieve the effects of reducing isotropic coke production, reducing ash content, and improving product quality

Active Publication Date: 2021-10-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The needle coke prepared by the above method has shortcomings such as unstable streamlined texture and high thermal expansion system, and the comprehensive performance of needle coke needs to be further improved

Method used

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  • A method of producing carbon material
  • A method of producing carbon material
  • A method of producing carbon material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Catalytic oil slurry from a refinery was used as raw material, and the specific properties of the oil slurry are shown in Table 1. The temperature of the 10% distillation point of the vacuum residue is 500°C, the mass ratio of the catalytic oil slurry to the vacuum residue is 1:0.3, and the temperature of the 10% distillation point of the light distillate on the third tower of the vacuum distillation unit is 220°C, 90 The temperature of the % distillation point is 310°C, the 10% distillation point of the middle distillate is 320°C, the 90% distillation point is 450°C, and the 10% distillation point of the bottom heavy distillate is 460°C. The middle distillate oil enters the hydrotreating unit 7 through the pipeline 5, and the catalyst bed of the hydrotreating unit is filled as follows: a total of four reactors of the unit are respectively filled with a protective agent, a metal removal agent, a desulfurizer and a denitrification agent, and the filling volume ratio is 5...

Embodiment 2

[0035] Catalytic oil slurry from a refinery was used as raw material, and the specific properties of the oil slurry are shown in Table 1. The temperature of the 10% distillation point of the vacuum residue is 530°C, the mass ratio of the catalytic oil slurry to the vacuum residue is 1:0.6, and the temperature of the 10% distillation point of the light distillate on the third column of the vacuum distillation unit is 230°C, 90 The temperature of the % distillation point is 350°C, the 10% distillation point of the middle distillate is 360°C, the 90% distillation point is 480°C, and the 10% distillation point of the bottom heavy distillate is 490°C. The middle distillate oil enters the hydrotreating unit 7 through the pipeline 5, and the catalyst bed of the hydrotreating unit is filled as follows: a total of four reactors of the unit are respectively filled with a protective agent, a metal removal agent, a desulfurizer and a denitrification agent, and the filling volume ratio is ...

Embodiment 3

[0037] Catalytic oil slurry from a refinery was used as raw material, and the specific properties of the oil slurry are shown in Table 1. The temperature of the 10% distillation point of the vacuum residue is 540°C, the mass ratio of the catalytic oil slurry to the vacuum residue is 1:1, and the temperature of the 10% distillation point of the light distillate on the third column of the vacuum distillation unit is 240°C, 90 The temperature of the % distillation point is 380°C, the 10% distillation point of the middle distillate is 390°C, the 90% distillation point is 490°C, and the 10% distillation point of the bottom heavy distillate is 500°C. The middle distillate oil enters the hydrotreating unit 7 through the pipeline 5, and the catalyst bed of the hydrotreating unit is filled as follows: a total of four reactors of the unit are respectively filled with a protective agent, a metal removal agent, a desulfurizer and a denitrification agent, and the filling volume ratio is 5:...

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Abstract

The invention discloses a method for producing carbon materials. The content of the method is as follows: a raw material oil is mixed with a certain proportion of vacuum residue oil, and then light distillate oil, middle distillate oil and tower bottom tail oil are separated through a vacuum distillation device. The tail oil goes out of the device, and the decompressed middle distillate oil enters the hydrotreating device, and the liquid phase product obtained after hydrotreating passes through the fractionating device to separate at least hydrogenated light distillate oil and hydrogenated heavy distillate oil, and hydrogenated heavy distillate oil After being mixed with the vacuum distillation light distillate oil, it is used as an intermediate phase material to be heated by the heating furnace a and then enters the coke tower, and the coking gas generated by the coke tower passes through the coking fractionation tower to obtain coked wax oil, and the coked wax oil is combined with the hydrogenation The light distillate oil is mixed as the coke pulling material, heated by the heating furnace b, and then enters the coke tower, and the coke tower completes the mesophase formation stage and the coke pulling stage in turn to obtain needle coke. The method can continuously produce high-quality high-end carbon materials with stable performance.

Description

technical field [0001] The invention relates to a method for producing carbon materials, in particular to a method for producing high-end needle coke. Background technique [0002] Needle coke is mainly used to produce high-power and ultra-high-power graphite electrodes. With the development of the steel age, the output of steel scrap has gradually increased, which has promoted the development of electric furnace steel, and will inevitably increase the amount of graphite electrodes, especially high-power and ultra-high-power electrodes, and the demand for needle coke will also continue to increase. [0003] CN201110449286.8 discloses a method for producing homogeneous petroleum needle coke. The raw material for producing needle coke is heated to a relatively low temperature of 400-480°C in a heating furnace and then enters the coking tower. The coking raw material forms a flowable mesophase liquid crystal ; After the low-temperature fresh raw material feeding stage is compl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G69/00C10G9/00C10B55/00
CPCC10B55/00C10G9/005C10G69/00
Inventor 初人庆郭丹方向晨乔凯
Owner CHINA PETROLEUM & CHEM CORP
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