Reaction paths curved segments

The reaction path would be similar to those plotted in Fig. 10.2.1. A straight line passing approximately through the last segment of the curve near equilibrium intercepts on the side AiAj a point determining a new composition for the second trial ... 

Kinetic analysis of the complex MTG reaction is somewhat simplified by the finding (Fig. 11) [2] that the methanol-DME-water equilibrium (dashed curves) is rapidly established and maintained along the initial segment of reaction path. Experimental data in Figure 11 demonstrate that this holds for pure methanol as well as pure DME feed. Thus OJQ genates can be treated as a single pseudospecies or kinetic "lump."... 

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