the coking properties of coal at elevated pressures. - Argonne ...

Table 1. Solid and Gas Species
Solid Species Gas Species
1. HOH 1. co
2. 0.0 2. co2
3. OH 3. H2
4. co 4. H20
5. coo 5. CH4
6. CHH 6. C2H6
7. CHZ 7. (CHZ)a
8. C s 8. (Cs)b
9. CHx 9. Inert gas
10. CH Y
11. Ash
Table 2. Differential Equations Model
Total Solids Mass Balance: D[(l-E)psvsl = E(Si)s = D(F) 1)
Total Gas Mass Balance: D(E p v ) = Z(S.) = D(G) 2)
g g 1 g
Solids Species Balance: D(Qashwi"Si) = (Si)s 3)
Gas Species Balance: D(E p v y.) = (S.) 4)
g g 1 1 g
Constitutive Equation for the Mixture: (Ref. 9)
- vS)l = fs/ps - g sin e 5)
Mixture Momentum Balance: gcD(P) = (v - V ~)Z(S~)~ - ( l-~)p~v~D(v~)
g
-E P v D(v ) - f - [~,(l-s)+p
g g g w
EI g sin e
g
Solids Density: D(ps) = DIZ(wio~i)pa~h/VRl 7)
Gas Density: D(pg) = D[(P/RT g )(Zy./M.)-'] 1 1 8)
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