Abstract
Mineral behaviors were investigated on the basis of the characteristics of three slag samples derived from pressurized ash agglomerate fluidized-bed gasification of Jincheng Anthracite (JC). Examination of the ash fusion temperature (AFT) shows that the AFTs of the slag samples in a reducing atmosphere (1:1 CO2/H2, volume ratio) increase in the order slag formed on the inner face (SI)<slag on the distribution plate (SD)<slag on the central tube (SC). Comparison of surface morphologies of slags indicates that a small part of the SI surfaces are molten and smooth. In SD, only particles attached to aggregates composed mostly of low-melting-point eutectics are molten, whereas SC contains few molten particles. Anorthite is present in SI and SD, and hercynite is present in all three slag samples. In the reducing atmosphere at 1100°C, hercynite and anorthite form in JC ash, and most of the calcium and iron form amorphous matter at 1200°C. Formation mechanisms of the three kinds of slag are discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
