Composite fuel coal sulfur fixing agent and its prepn

A sulfur-fixing agent and coal-burning technology, which is used in fuel additives, fuels, petroleum industries, etc., can solve the problems of lowering the combustion temperature of coal combustion and low sulfur-fixing efficiency, reducing sulfur dioxide content, solving clean use, and solving thermal efficiency problems. Effect

Inactive Publication Date: 2006-04-19
朱常先
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  • Abstract
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  • Application Information

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Problems solved by technology

The temperature of commonly used coal-fired boilers is generally above 1100°C, so the sulfur-fixing efficiency of calcium-based sulfur fixation agent is not high in actual use, and because it needs to absorb a certain amount of combustion heat during the reaction process, it will also reduce the combustion efficiency. The problem of coal combustion temperature

Method used

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Examples

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Embodiment Construction

[0019] The specific embodiment of sulfur-fixing agent of the present invention is given by following examples:

[0020] The calcium-magnesium compound carbonate, calcium carbonate and magnesium carbonate of the sulfur-fixing agent of the present invention are directly collected natural ores and ores, and the calcium oxide is obtained by thermally decomposing natural calcium carbonate. The source of its raw material is extensive and easy to get. The above-mentioned raw materials are respectively crushed into powders with a particle size less than 1mm, and 40kg of calcium-magnesium compound carbonate, 40kg of calcium carbonate, 20kg of calcium oxide and 10Kg of magnesium carbonate are respectively taken after crushing, and mixed uniformly to obtain the coal-fired composite sulfur-fixing agent of the present invention powder.

[0021] Add 160Kg of water to the above-mentioned sulfur-fixing agent powder, and stir evenly to obtain a sulfur-fixing agent liquid.

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Abstract

The composite fuel coal sulphur fixing agent is added into burning coal to reduce released harmful gas SO2. It consists of mixed complex carbonate, calcium carbonate, calcium oxide and magnesium carbonate crushed to 1 mm below size. In different burning temperature, the sulphur fixing agent absorbs SO2 produced by burning coal to produce sulfide staying in cinder, and reduces the exhausted SO2 ans decrease environmental pollution. Using the sulphur fixing agent as clean coal additive is convenient and high in effect.

Description

technical field [0001] The invention relates to a coal-fired composite sulfur-fixing agent, which is an additive added to coal-fired coal for reducing excessive sulfur dioxide harmful gas released during coal combustion. The invention also relates to a preparation method of the sulfur-fixing agent. Background technique [0002] The organic sulfur and sulfide sulfur contained in coal are called combustible sulfur. When combustible sulfur is burned with coal, sulfur dioxide (SO 2 ), and the emission of sulfur dioxide into the atmosphere will cause air pollution. Adding a sulfur-fixing agent to the coal combustion, so that the sulfur dioxide released during the coal combustion process reacts with the sulfur-fixing agent to form a stable solid solution substance, thereby reducing the sulfur dioxide content in the exhaust flue gas. Because of its simple operation, it is easy to implement Low cost, being more and more adopted. Most of the sulfur fixatives currently used for co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L10/00
Inventor 朱常先张建中
Owner 朱常先
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