Liquid catalyst for improving coal combustion efficiency

By using liquid catalyst formula during coal combustion, the problem of easy decomposition and poor adaptability of catalysts in the prior art at high temperatures is solved, efficient and stable coal combustion is achieved, harmful gas emissions and coal consumption are reduced, and combustion rate is improved .

CN119307293AInactive Publication Date: 2025-01-14PING XIANG PU TIAN HIGH-TECH IND CO LTD
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Patent Information

Application Number
CN202411601408.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-01-14
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing coal combustion catalysts are prone to decomposition or inactivation at high temperatures, which are difficult to meet the needs of different combustion devices and working conditions, and have poor adaptability to coal types, resulting in low combustion efficiency and large emissions of harmful gases, and lack of effective atomization spraying methods to limit catalytic effect.

Method used

A liquid catalyst formula is adopted, including pure water, sodium chloride, lanthanum nitrate, cobalt nitrate, zinc chloride and other components, and is uniformly distributed on the surface of coal particles at room temperature through a continuous atomization device to form a stable catalytic layer, which is suitable for It maintains stability at high temperatures in different coal types and combustion devices.

Benefits of technology

The coal combustion activation energy is reduced by about 30%, the coal combustion oxygen consumption and carbon oxygen compound emissions are reduced, the combustion rate and combustion efficiency are improved, the carcinogenic aromatic hydrocarbons are inhibited, and coal consumption is saved.

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Abstract

The invention discloses a liquid catalyst for improving coal combustion efficiency, belongs to the technical field of coal chemical industry, and is used for improving the combustion rate and efficiency of coal in a high-temperature environment and reducing emission of harmful gases such as carbon oxides. The catalyst comprises pure water, sodium chloride, lanthanum nitrate, cobalt nitrate, nickel nitrate, zinc chloride, magnesium chloride, calcium chloride, copper chloride, ferric citrate, sodium acetate, potassium iodide, urea, citric acid, potassium hydroxide and other components, can be kept in a liquid state at normal temperature, forms a stable catalyst layer on the surface of coal particles, and is suitable for different coal types and combustion devices. When in use, the catalyst is added into pulverized coal or coal slurry through a continuous atomization device to ensure that the catalyst is uniformly distributed on the surfaces of coal particles to form a multi-phase dynamic catalytic oxidation system.
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Citation Information

Patent Citations

  • Coal composite catalyst as well as preparation method and application thereof

    CN114931958A

  • Process for improving carbon conversion efficiency

    US20220333140A1

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