Table 5 Average results of the major gas components from 34 to 40 h.

From: Effects of water injection on reaction temperature and hydrogen production in horizontal co-axial underground coal gasification

Calorific value (MJ/m3)

Gas production flow rate (m3/h)

Composition of product gas (%)

H2

CO2

CO

N2

5.5

7.15

21.3

20.1

17.6

39.9

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