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ance across the compressor, which will be considered in Chapter 5. Finally, we
can find the temperature in line 6 by making a flash calculation. Table 3.5.8 gives
the pressures and temperatures in each line. This completes the analysis of the
methanol-synthesis flow loop.

Table 3.5.7 Revised Summary of Mole Balances - Methanol-Synthesis
Process___________________________________

MIXER (M-1)
Mole Balances

Yu' mi + y 2,i m 2 = y 3/ m 3 (3.5.1)

Yi/m, + y 2, 3 m 2 = y 33 m 3 (3.5.2)

(3.5.3)
YM' mi + y 2, 4 m 2 = y 3, 4 m 3

Yi/mi + y 2>5 m 2 = y 3j5 m 3 (3.5.4)

yi >6' mi + y 2, 6 m 2 = y 3, 6 m 3 (3.5.5)

Y2,l + Y2,3 + Y2,4 + Y2,5 + Y2,6 = 1 (3.5.6)
CONVERTER (R-3)

Mole Balances

y 3ji m 3 = y 4>, m, (3.5.9)

x By 3j5 m 3 =y 4>2 m4 (3.5.10)

Y 3,3 m 3 = y 4>3 m, + 2 X A y 3, 4 m 3 + 3 X B y 3, 5 m 3 (3.5.11)

y3,4m 3 = y 4j4 m4 + x A y 3j4m 3 (3.5.12)
Y3,s m 3 = y 4j5 m, + X B y 3, 5 m 3 (3.5.13)

Y3,e m 3 = y 4>6 m, (3.5.14)

XA Y3,4 ms + X B y 3, 5 m 3 = y 4;7' ro, (3.5.15)

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