The technology for co-disposal and recycling of coal power/coal chemical industry waste has passed the acceptance assessment

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Source: Sinochem New Network. According to a report on the SASAC website, the Ministry of Science and Technology recently organized an evaluation meeting for the 863 Program project titled “Technologies and Demonstrations for the Co-disposal and Circular Utilization of Coal Power/Coal Chemical Industry Waste”, which is being carried out by Shenhua Group. At the meeting, the expert group gave high praise to the completion of this project and its technological innovations, and unanimously agreed to approve it. 　　“The project on “Co-disposal and Circular Utilization Technologies for Coal-fired Power/Coal Chemical Industry Waste” is an important research topic under the **12th Five-Year Plan** regarding technologies for the treatment and resource utilization of large-scale solid waste. Implementation began in 2012, and after 5 years of effort, the research team achieved key results including technologies such as the extraction of alumina from fly ash to produce ultra-clear glass and molecular sieves, solid amine carbon dioxide adsorbents, and catalysts for treating coal chemical wastewater using fly ash. More than 20 products were developed, including alumina, ultra-clear glass, and various types of molecular sieves. Three demonstration facilities were built: one capable of producing tens of thousands of tons of alumina from fly ash, one for purifying MTO wastewater using fly ash on a scale of thousands of tons, and one for industrial-scale carbon dioxide adsorption using solid amines. Among them, the demonstration unit for extracting alumina from fly ash operated continuously and stably for over 100 days; the alumina extraction rate exceeded 90%, and the purity of the alumina product met the requirements for **metallurgical grade first-class products. The project has been evaluated and approved by the Chinese Society for Environmental Sciences, the China Coal Industry Association, and the China Circular Economy Association, with its technology reaching an internationally leading level; 32 invention patents and 2 PCT patents have been applied for, and 19 papers have been published.