Posted reply to the forum post http://www.egpet.net/vb/showthread.php?8099-Coal-Bed-Methane-Reservoir-Engineering-Book&p=129508#post129508
hi friend i m kinda stuck with my CBM gas storage capacity calculation in adsorption isotherm i was able to find out the gas content for every pressure steps but i have a problem The langmuir equation related to gas storage capacity is V= VL [ P / (PL +P)] then i convert it into y = mx + c and became P/V = (1/VL)*P + PL/VL basically slope = m = 1/VL and interception is c = PL/VL my problem is i got a negative slope. My question is does this negative slope can represents Langmuir Volume? or it shouldnt be negative slope? I m stuck here.. Hope you can help me.. thanks
