Experimental Study of Hydrogasification of Lignite and Subbituminous Coal Chars

Figure 4

Measured molar content of the outflow gas methane versus time for “Szczerców” char at 1173, 1073, and 973 K for (a) 6 MPa, (b) 7 MPa, and (c) 8 MPa.

(a)

(b)

(c)