Gasification reactivity and combustion characteristics of semi-coke

  • Meiqin ZhaEmail author
  • Wei Xia
  • Qiang Niu
Original Article


Various semi-cokes were obtained from medium–low-temperature pyrolysis of Shenmu long flame coal. The combustion characteristic index and CO2 gasification reactivity of semi-cokes were measured and analyzed using thermogravimetry analysis. The influence of particle size on CO2 gasification reactivities of these semi-cokes was studied. In addition, the Brunauer–Emmett–Teller surface area (SBET), carbon material structure order and carbon crystalline structure were examined by N2 adsorption, Raman spectroscopy and powder X-ray diffraction. All of these properties were used to evaluate the CO2 gasification reactivity of these semi-cokes. The results show that the gasification reactivity of semi-cokes decreases with an increasing crystallinity and structure order. Surface area of the pores is proportional to the reactivity of the semi-coke; the greater the surface area, the faster the gasification reaction rate.


BET surface area Reactivity Particle size Gasification Combustion 



This research did not receive any specific grant from funding agencies in the public, commercial or not-for-profit sectors.

Compliance with ethical standards

Conflict of interest

No potential conflict of interest relevant to this article was reported.


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Copyright information

© Korean Carbon Society 2019

Authors and Affiliations

  1. 1.Institute of Materials Science and Genomic EngineeringShanghai UniversityShanghaiChina
  2. 2.Ordos Hanbo Technology Co. Ltd.OrdosChina
  3. 3.Shanghai Erdos Industrial Technology Co. Ltd.ShanghaiChina

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