1. Hydrogasification of Low-Oxygen Semi-Coke to Produce Methane by Consuming Less Hydrogen
- Author
-
Tian Kai Zhang, Ying Xu, Guojie Zhang, Xiao Kuo Ding, and Yongfa Zhang
- Subjects
Waste management ,Hydrogen ,Low oxygen ,chemistry.chemical_element ,General Medicine ,Coke ,Methane ,Reaction rate ,chemistry.chemical_compound ,chemistry ,Chemical engineering ,Methanation ,Slow speed ,Carbon - Abstract
The presented work aimed at investigating the hydrogasification of low-oxygen semi-coke. For comparison, the hydrogasification of lignite was conducted. Variation of gaseous products concentration and reaction rate of the semi-coke hydrogasification process were investigated. The results shown that the methane yield of low-oxygen semi-coke is 24.8% greater than the lignite, but also the hydrogen consumption reduced greatly; the hydrogasification process can be divided into three stages: hydro-pyrolysis stage, rapid hydrogasification stage and slow speed hydrogasification stage; the difference of the reactive is attributed to different carbon structure forms .
- Published
- 2013