$11$:$15$

$92$

Discussion $3\_$CED$3601$ copy

What to consider

Overall material balance

Entering: Ammonia $+EO+$ water

Leaving: MEA is $99\mathrm{.}5\%(0\mathrm{.}5\%$ other?$)$

$q,$

$q,$ System

$NH3+C2H4O+H2O=C2H7NO+H2O$

$so$

$NH3+C2H4O=C2H7NO$

Assume complete conversion of $C2H4O.$

Since NH$3$ is $10C2H40$

$3.$ Some ammonia will leave the system $($unless a recycle stream is required$)$

$NH3+C2H4O+H2O=C2H7NO+H2O+NH3$

What to consider

$50$ tons of water leave the system with MEA

But how much water is coming in$?$

If we recycle $NH3$ what is the actual feed of $NH3$

Decisions:

Should we purge water or recycle?

Decide on operating conditions for all units

What needs to be cooled or heated?

Energy balance

Heat of formation $(Hf)$

$H_{rxn}={\displaystyle \underset{\text{p}\text{r}\text{o}\text{d}\text{u}\text{c}\text{t}\text{s}}{\overset{?}{}}}{v}_i{H}_{f,i}-{\displaystyle \underset{reactants}{\overset{?}{}}}{v}_i{H}_{f,i}$

$H_T=H_{T_0}^0+R{\displaystyle \underset{T_0}{\overset{T}{}}}\frac{C{p}^0}{R}dT,\frac{C{p}^0}{R}=4+B+C{T}^2+D{T}^{-2}$

$-H_{rxn}=n_p{H}_{\text{p}\text{r}\text{o}\text{d}\text{u}\text{c}\text{t}\text{s}}^o+n_p{\displaystyle \underset{25}{\overset{T}{}}}{C}_{p}dT-n_r{H}_{reactants}^o$

$H=H_{\text{o}\text{u}\text{t}}-H_{in}=q$

Reaction equilibrium

$Go($ reaction$)={\displaystyle \underset{?}{\overset{?}{}}}Go(products)-{\displaystyle \underset{?}{\overset{?}{}}}Go$