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Production method of carbon black

A production method and carbon black technology, applied in fibrous fillers and other directions, can solve the problems of inability to meet market requirements and the tinting strength is in the lower limit range, and achieve the effect of broadening the sales market, optimizing the quality of carbon black, and improving product grades

Inactive Publication Date: 2021-11-19
山西焦化股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the tinting strength of N330 in the market is generally in the bottom range, which cannot meet the market requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A production method of carbon black, comprising the following method steps:

[0024] (1) The raw material oil is selected with a distillation volume ≥ 33v / v% before 360°C and a density of 1.21g / cm 3 , preheated to 220°C, and then sprayed radially into the throat section of the reactor; the ratio of air to gas is 3.5:1, and the temperature of the combustion chamber is above 1700°C;

[0025] (2) High-temperature cracking to produce carbon black flue gas, quenching, terminating the reaction, cooling, collecting, pulverizing, and storing;

[0026] (3) Among them, the insertion depth of the crude oil gun and the diameter of the gun head are standardized uniformly, and the additives are mixed evenly and uniformly atomized;

[0027] (4) Among them, the air intake mode of the air distributor in the reaction furnace is changed to radial cut air intake.

Embodiment 2

[0029] A production method of carbon black, comprising the following method steps:

[0030] (1) The raw material oil is selected with a distillation volume ≥ 33v / v% before 360°C and a density of 1.22g / cm 3 , preheated to 220°C, and then sprayed radially into the throat section of the reactor; the ratio of air to gas is 3.5:1, and the temperature of the combustion chamber is above 1700°C;

[0031] (2) High-temperature cracking to produce carbon black flue gas, quenching, terminating the reaction, cooling, collecting, pulverizing, and storing;

[0032] (3) Among them, the insertion depth of the crude oil gun and the diameter of the gun head are standardized uniformly, and the additives are mixed evenly and uniformly atomized;

[0033] (4) Among them, the air intake mode of the air distributor in the reaction furnace is changed to radial cut air intake.

Embodiment 3

[0035] A production method of carbon black, comprising the following method steps:

[0036] (1) The raw material oil is selected with a distillation volume ≥ 33v / v% before 360°C and a density of 1.22g / cm 3 , preheated to 200°C, and then sprayed radially into the throat section of the reaction furnace; the ratio of air to gas is 3.5:1, and the temperature of the combustion chamber is above 1700°C;

[0037] (2) High-temperature cracking to produce carbon black flue gas, quenching, terminating the reaction, cooling, collecting, pulverizing, and storing;

[0038] (3) Among them, the insertion depth of the crude oil gun and the diameter of the gun head are standardized uniformly, and the additives are mixed evenly and uniformly atomized;

[0039] (4) Among them, the air intake mode of the air distributor in the reaction furnace is changed to radial cut air intake.

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Abstract

The invention discloses a production method of carbon black. The method comprises the following steps: selecting raw oil with the distillate quantity of more than or equal to 33v / v% before 360 DEG C and the density of 1.21-1.22 g / cm < 3 >, preheating to 200-220 DEG C, and radially spraying into a throat pipe section of a reaction furnace, wherein the ratio of air to fuel gas is 3.5: 1, and the temperature of the combustion chamber is above 1700 DEG C; performing high-temperature pyrolysis to produce carbon black flue gas, quenching, terminating the reaction, post-cooling, collecting, crushing and warehousing, wherein the insertion depth and the gun head diameter of the crude oil gun are unified and standardized, uniform arrangement is realized, and additives are uniformly mixed and uniformly atomized; and the air inlet mode of the air uniform distributor in the reaction furnace is changed into radial cut-in air inlet. According to the invention, the carbon black with higher coloring strength can be produced, and the quality of the carbon black is optimized.

Description

technical field [0001] The invention relates to the production technology of carbon black, in particular to a production method of carbon black. Background technique [0002] The tinting strength of carbon black is usually based on the measurement of the reflectance of the slurry composed of carbon black and zinc oxide in the oil. It is mainly used to measure the ability of carbon black to reduce the amount of reflected light. Generally speaking, the smaller the primary particle size of carbon black, the better the coloring The higher the intensity. [0003] With the development of the market, the requirements for the tinting strength of hard carbon black N330 are getting higher and higher. However, the tinting strength of N330 in the market is generally in the bottom range, which cannot meet the market requirements. [0004] In order to solve the above technical problems, the present invention proposes a production method of carbon black. Contents of the invention [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/50
Inventor 闫瑞东亓建设吕树维赵飞张红艳
Owner 山西焦化股份有限公司
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