Study on the cleanliness of super clean coal prepared by water-only cyclone

• Autorzy: Liu Peikun , Wang Hui , Jiang Lanyue , Zhang Yuekan , Yang Xinghua , Li Xiaoyu , Li Feng

Identyfikatory

DOI

10.37190/ppmp/168129

• Języki publikacji: EN

Abstrakty

EN

Maintaining clean and pristine nature is the key to the use of super clean coal (SCC) for coal-based materials or energy combustion. Herein, SCC is prepared by a new water-only cyclone method, and compared the surface characteristics with the SCC products obtained by conventional chemical deashing method. The results indicate that: FTIR analysis revealed that the chemical method changed the original functional group of coal; BET analysis revealed that the SCC products prepared by the water-only method maintained the micropore volume of the raw coal and yielded a uniform and concentrated distribution of pore sizes, however, the chemical method destroying the original pore structure in the coal; SEM-EDS analysis indicated that the surface of SCC particles that were deashed using the water-only cyclone method was smooth and neat, whereas those obtained using the chemical method were seriously corroded, had a rough surface, and the SCC particles were prone to acid residues and precipitates. This study opens an innovative, simple, and clean method for the preparation of SCC, which further expands and enhances the potential application value of SCC.

Słowa kluczowe

EN

cyclone separating; chemical deashing; super clean coal; surface characteristics; comparative study

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2023
• Tom: Vol. 59, iss. 3
• Strony: art. no. 168129
• Opis fizyczny: Bibliogr. 32 poz., rys., tab., wykr.

Twórcy

autor

Liu Peikun

• College of Mechanical & Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China

autor

Wang Hui

• College of Mechanical & Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China

autor

Jiang Lanyue

• College of Mechanical & Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China

autor

Zhang Yuekan

• College of Mechanical & Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China

autor

Yang Xinghua

• College of Mechanical & Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China

autor

Li Xiaoyu

• College of Mechanical & Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China

autor

Li Feng

• College of Mechanical & Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).