Research and Application of Green and Efficient In-situ Disposal Technology and Equipment for Coal Chemical Sludge
Abstract：To address the issues of high pollution, difficulty in treatment, and high energy consumption and carbon emissions associated with traditional drying and incineration technologies for coal chemical sludge, a sludge hydrothermal pre-treatment combined with catalytic wet air oxidation process was adopted. Based on experimental studies, the characteristics of coal chemical sludge, optimization of the hydrothermal oxidation reaction process, catalyst screening, and pollutant degradation mechanisms were investigated. A complete set of process equipment was developed. This technology reduces the moisture content of the sludge from 80% to 29.3%, achieves a reduction rate of over 87.5%, ensures a 100% safe conversion rate of characteristic pollutants, and reduces energy consumption by 40% compared to traditional technologies. It realizes efficient, harmless, and low-carbon disposal of sludge, providing technical and equipment support for the green and sustainable development of the coal chemical industry.
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Publication Date：2025-07-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 61-67 )