车得福
- 教授
- Supervisor of Doctorate Candidates
- Supervisor of Master's Candidates
- E-Mail:
- Date of Employment:1986-11-22
- Education Level:With Certificate of Graduation for Doctorate Study
- Professional Title:教授
- Status:Employed
- Alma Mater:西安交通大学
- College:School Of Energy And Power Engineering
- Discipline:Power Engineering and Engineering Thermophysics
- Papers
Effects of ashing method and blending on ash characteristics of pyrolyzed and gasified semi-cokes
Release Time:2025-04-30 Hits:
- Date:2025-04-30
- Title of Paper:Effects of ashing method and blending on ash characteristics of pyrolyzed and gasified semi-cokes
- Journal:FUEL
- Summary:The characterization of ash properties is of benefit for better elucidating the ash-related issues during utilization of semi-coke. Nevertheless, the impact of different ashing methods on ash characteristics of semi-coke still remains unclear, along with the influence of blending various semi-cokes. In the present study, the ashes of pyrolyzed and gasified semi-cokes were prepared from two different methods, low-temperature plasma ashing at <200 degrees C and traditional muffle ashing at 815 degrees C to investigate the effects of ashing method on ash characteristics of semi-coke, which has been seldom conducted before. The low-temperature plasma oxidization could consume organic matter without destroying the initial state of mineral species in semi-coke matrix. A variety of analysis techniques including X-ray fluorescence (XRF), X-ray diffraction (XRD) and thermal analysis was performed to study ash composition, mineral phase, thermal volatility, and so on. The results show that the appearance and yield of low-temperature ash (LTA) and high-temperature ash (HTA) are highly related to the ashing approach and the category of semi-cokes. The mass fractions of most oxides contained in LTA are lower than those in HTA. The main difference of mineral phases between LTA and HTA of semi-cokes lies in the existence form of calcium. The ashing method exerts remarkable influences on thermal behaviors of pyrolyzed semi-coke ash but insignificant effect on those of gasified semi-coke. Moreover, the effects of blending pyrolyzed and gasified semi-cokes on the ash compositions and thermal behaviors are significant, while the mineral phases seem to be independent of the blending process.
- Co-author:Wang, Chang'an; Zhao, Lin; Yuan, Maobo; Liu, Chengchang; Che, Defu
- Volume:271
- Translation or Not:No
- Date of Publication:2020-07-01