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High-density calcined petroleum coke and preparation technology thereof

A petroleum coke, high-density technology, applied in the petroleum industry, coke ovens, special forms of dry distillation, etc., can solve the problems affecting multiple ranges of applications, product quality control difficulties, production control difficulties, etc., to achieve high product cost and anti-shattering Increased strength and contact densification effect

Inactive Publication Date: 2009-02-11
SINOCHEM ZHENJIANG COKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Existing technology: At present, the production of domestic conventional calcined petroleum coke can generally be carried out through a tank furnace. The calcined petroleum coke produced by it is determined by its process characteristics, the product particle size is small, the structure is loose, and the strength is low. The yield of the product in the process is low and the cost of the product is high, which affects its wide range of applications
The production of calcined petroleum coke by tank furnace method is difficult to control the product quality when raw materials fluctuate, especially for the production of calcined petroleum coke with high specific resistance series, the production control of tank furnace method has certain difficulties

Method used

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  • High-density calcined petroleum coke and preparation technology thereof
  • High-density calcined petroleum coke and preparation technology thereof

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Effect test

Embodiment 1

[0013] Embodiment 1: A kind of high-density calcined petroleum coke, the true specific gravity of this petroleum coke is 2.00-2.04g / cm 3 , Apparent porosity: 32-36%, particle size: 10-150mm; sulfur content: 0.2-0.7wt%, ash content: 0.2-0.7wt%, volatile matter: 0.2-0.6wt%, moisture: 0.4-3wt%, fixed Carbon: 95-99.0 wt%.

Embodiment 2

[0014] Embodiment 2: A method for producing high-density calcined petroleum coke, the production steps are: raw material mixing and crushing: delayed petroleum coke and pitch are pre-crushed respectively, and the delayed petroleum coke weight ratio is 85%, and the pitch weight is 15%. Proportional blending, and then mixed and crushed, the mixed raw materials are crushed so that particles with a fineness of less than 3mm account for more than 60% of the mass fraction of the mixed raw materials; raw material water content adjustment: add water to the crushed raw materials to make the mixed raw materials water content Control at 12wt% of the total mass fraction of the mixed raw materials; coke oven dry distillation: the raw materials that have been treated with the water content adjustment in the previous step are sent to a tamping coke oven for high-temperature dry distillation and calcination, and the calcination temperature is controlled to be 1100 ° C. The coking time is 35 hou...

Embodiment 3

[0024] Embodiment 3: A method for producing high-density calcined petroleum coke, the production steps are: mixing and crushing of raw materials: after the delayed petroleum coke and pitch are pre-crushed respectively, the delayed petroleum coke weight ratio is 94%, and the pitch weight is 6%. Proportional blending, and then mixed and crushed, the mixed raw materials are crushed so that particles with a fineness of less than 3mm account for more than 60% of the mass fraction of the mixed raw materials; raw material moisture content adjustment: add water to the crushed raw materials to control the moisture content of the mixed raw materials Accounting for 16wt% of the total mass fraction of the mixed raw materials; coke oven dry distillation: the raw materials processed by adjusting the water content in the previous step are sent to a tamping coke oven for high-temperature dry distillation and calcination, the calcination temperature is controlled to be 1300 ° C, and the coking t...

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Abstract

The invention relates to a high-density calcined petroleum coke, the true specific gravity of the petroleum coke is 2.00 to 2.04 g / cm<3>, the apparent porosity is 32 to 36 percent and the particle size is 10 to 150mm; the sulfur content is 0.2 to 0.7 percent by weight, the ash content is 0.2 to 0.7 percent by weight, the content of volatile matters is 0.2 to 0.6 percent by weight, the water content is 0.4 to 3 percent by weight and the fixed carbon is 95 to 99.0 percent by weight. The production steps of a method for producing the high-density calcined petroleum coke are as follows: the water content of raw materials is controlled; the dry distillation is carried out on a stamp-charging coke oven; and the post-treatment of a product is carried out. The calcined petroleum coke which is produced by the coke oven can be randomly systematically adjusted according to the product quality of a user, thereby being capable of achieving the purposes of even quality, stability, reliability, high density and high strength.

Description

1. Technical field [0001] The invention belongs to the technical field of petroleum coke production, and in particular relates to a high-density calcined petroleum coke and a process for producing petroleum coke by using a tamping coke oven. 2. Background technology [0002] Existing technology: At present, the production of domestic conventional calcined petroleum coke can generally be carried out through a tank furnace. The calcined petroleum coke produced by it is determined by its process characteristics, the product particle size is small, the structure is loose, and the strength is low. The yield of the product in the process is low, and the cost of the product is high, which affects its multi-range application. The production of calcined petroleum coke by the tank furnace method is difficult to control the product quality when the raw materials fluctuate, especially for the production of calcined petroleum coke with high specific resistance series, the production cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/00C10B53/00
Inventor 苏启善冯金龙陈怡
Owner SINOCHEM ZHENJIANG COKING
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