Table 1. Resource Input, Output, and Energy Consumption for the Foreground Processesa.
| product/process | S1 (tonne FU–1) | S2 (tonne FU–1) |
|---|---|---|
| input | ||
| EG | 0.542 | 1.996 |
| organocatalyst | 0.035 | 0.035 |
| payment cards | 1 | 1 |
| water | 0.3027 | 3 |
| acetone | 0.0009 | 0.0009 |
| output | ||
| BHET | 0.9473 | 0.9435 |
| CHDM | 0.1836 | |
| metals | 0.0055 | 0.0055 |
| wastewater | 0.744 | 4.3811 |
| energy consumption (electricity, kJ) | ||
| depolymerization | 8.01 × 105 | 8.01 × 105 |
| distillation of acetone | 191.34 | 191.34 |
| evaporation of water | 3.00 × 107 | |
| distillation of EG | 1.54 × 106 | |
| distillation of CHDM | 7.73 × 104 | |
Note: S1, Scenario 1; S2, Scenario 2; FU, functional unit.