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| Aspen Plus unit operation model | Flow sheet component in Figure 3 | Specification and function |
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| RGibbs | CALCINAT | Completion of calcination |
| BURN | Coal combustion (streams 3, 16, and 10) |
| BURNING | Clinker burning (streams 27 and 26) |
| BELITE | Formation of belite (C2S) (stream 29) |
| MIXPH1 | Mixing of solids (stream 1) with gases (stream 35) and drying of free water from raw meal |
| MIXPH2 | Mixing of solids (streams 37 and 38) with gases (stream 20) and evolution of combined water from raw meal |
| MIXPH3 | Mixing of solids (stream 34) and gases (stream 23) and evolution of combined water from raw meal |
| GASMIX | Combining gases (streams 41 and 42) |
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| RStoic | MIXPH4 | Precalcination of 30% of limestone |
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| RYield | DECOMP | Decomposing coal (stream 2) |
| ASHDECOM | Decomposing ash (stream 45) |
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| Cyclone | CYCL4 | Separates solids (stream 11) from gases (stream 23) |
| CYCL1N | Precleaning of exhaust gases (stream 42) |
| CYCL1S | Precleaning of exhaust gases (stream 41) |
| CYCL2 | Precleaning of exhaust gases (stream 36) |
| CYCL3 | Precleaning of exhaust gases (stream 21) |
| SEPARAT4 | Separates gases (stream 13) and solids (stream 29) of calcination products |
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| HeatX | COOLER | Cooling clinker (stream 12) |
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| Heater | WALL-LOS | Set thermodynamic conditions of streams 8 and 9 to quantify cooler losses |
| GASCOOL | Simulates an exhaust (stream 44) gas cooling tower |
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| Compr | C-AIRFAN | Used to model a cooler inlet air fan (stream 5) |
| ID-FAN | Sucking out of exhaust gases (stream 14) from the kiln system |
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| FSplit | FEEDSPLT | Splits stream 43 into two equal parts |
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| FabFl | GASCLEAN | Cleaning of fine dust from gases (stream 18) |
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