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Method for catalytic gasification of petroleum coke

A petroleum coke and catalyst technology, applied in the field of petroleum coke catalytic gasification, can solve the problems of low catalytic activity of iron-based catalysts, low catalytic activity, large catalytic difference, etc., so as to achieve resource utilization, rich resources, source wide range of effects

Inactive Publication Date: 2018-09-28
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditionally used catalysts such as potassium salts and sodium salts have good catalytic activity, but they are expensive, difficult to recycle, and corrode gasifiers; iron-based catalysts have problems such as low catalytic activity, difficult recycling, and easy poisoning ; Disposable catalysts such as coal ash catalysts have problems such as low catalytic activity and large catalytic differences among different disposable catalysts, which cannot be widely used in industry

Method used

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  • Method for catalytic gasification of petroleum coke
  • Method for catalytic gasification of petroleum coke

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: Weigh 1gMgCl 2 Put it into a beaker, and add 20g of water, stir well to get the 2 solution, then weigh 10g of petroleum coke with a particle size of less than 0.074mm, and mix it with MgCl 2 The solutions were mixed together and stirred for 24 hours with a magnetic stirrer; finally, the stirred petroleum coke was dried in a drying oven at 105°C for 12 hours to obtain catalyst-loaded petroleum coke prepared by impregnation method, and the above samples were placed in The reaction was carried out in a fixed-bed gasifier. The operating conditions of the gasifier were: pressure 0.1MPa, temperature 1100°C, water vapor flow rate 4g / min, and the time required for the complete reaction of petroleum coke is shown in Table 1.

Embodiment 2

[0027] Embodiment 2: Take by weighing 10g of petroleum coke with a particle size less than 0.074mm and 1g of MgCl 2 , the above samples were dried, ground on a vibrating grinder for 10 minutes, and then dried in a drying oven at 105°C for 12 hours to obtain catalyst-loaded petroleum coke prepared by mechanical mixing, and the above samples were put into a fixed bed gasification The reaction was carried out in the gasification furnace. The working conditions of the gasifier: the pressure is 0.1MPa, the temperature is 1100°C, the water vapor flow rate is 4g / min, and the time required for the complete reaction of petroleum coke is shown in Table 1.

Embodiment 3

[0028] Embodiment 3: Weigh 10g of petroleum coke and 1g of MgCl with a particle size less than 0.074mm 2 , after drying the above samples, the MgCl 2 Sprinkle directly on the surface of petroleum coke, put it into a fixed-bed gasifier for reaction, the working conditions of the gasifier: pressure 0.1MPa, temperature 1100℃, water vapor flow rate 4g / min, the time required for the complete reaction of petroleum coke is shown in the table 1.

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Abstract

The invention relates to the field of petroleum coke gasification and particularly relates to a method for catalytic gasification of petroleum coke. The method comprises through a mechanical mixing method, a dipping method or a direct sprinkling method, mixing a magnesium compound catalyst and petroleum coke to obtain catalyst-supported petroleum coke and then feeding the catalyst-supported petroleum coke into a fixed bed gasification furnace so that the materials undergo a gasification reaction. The method utilizes the catalyst to catalytically gasify petroleum coke so that the gasification reaction rate is greatly improved and the reaction time is shortened by 1.45 to 8.4 times. The catalyst is a magnesium-based compound and has the advantages of low price, convenient recycling and the like.

Description

technical field [0001] The invention relates to the field of petroleum coke gasification, in particular to a method for catalytic gasification of petroleum coke. Background technique [0002] Petroleum coke is a solid by-product produced by the coking unit of an oil refinery. Since the beginning of this century, the crude oil processing capacity of my country's refineries has increased rapidly, and the coking capacity has increased even faster during this period. Correspondingly, the production of petroleum coke has increased rapidly. During the ten years (2001-2011), the national petroleum coke production has increased by 2.6 times, and the refinery petroleum coke production rate (accounting for crude oil processing volume) has risen from 2.15% to about 4%. With the continuous growth of global oil demand and heavy crude oil, the output of petroleum coke is increasing sharply. The main application of high-sulfur petroleum coke is combustion power generation. Due to the high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/02C10J3/48
CPCC10J3/02C10J3/482C10J2300/0906C10J2300/0909C10J2300/0943C10J2300/0976
Inventor 田伟阎富生梁容真史金星吴智勇王越
Owner NORTHEASTERN UNIV
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