LIU Ming, SHEN Zhongjie, HAN Dong, et al. In-situ gasification characteristics of a petroleum coke with CO2 at high temperature[J]. CIESC Journal, 2017, (4): 1622-1628. DOI: 10.11949/j.issn.0438-1157.20161264.
LIU Ming, SHEN Zhongjie, HAN Dong, et al. In-situ gasification characteristics of a petroleum coke with CO2 at high temperature[J]. CIESC Journal, 2017, (4): 1622-1628. DOI: 10.11949/j.issn.0438-1157.20161264.DOI:
In-situ heating stage microscope was applied to analyze the influence of temperature and particle size to the gasification characteristics of petroleum coke. The differences of reaction characteristics between bituminous char and petroleum coke were also analyzed. It was found that the particle shrank during the gasification process
and the surface structure of petroleum coke was changed. The reaction rate decreased with reaction time at the lower temperature (below 1300℃)
while first increased and then decreased at 1300℃. Besides
under the same conversion rate
reaction time increased with the temperature and the decrease of particle size. The gasification reaction rate performed different characteristics at 1300℃
owing to the change of particle structure. The comparison of the gasification reaction between bituminous char and petroleum coke showed that the average gasification reaction rate of petroleum coke was 1/6 of bituminous char.