Table 5 Major inputs and outputs from the biorefinery of each scenario
From: Production routes to bio-acetic acid: life cycle assessment
Input | EAX OC | EAX LE | ADX OC | ADX LE |
|---|---|---|---|---|
Feedstock (bone dry) (t) | 1.9 | 1.9 | 1.9 | 1.9 |
Enzymes (kg) | 16 | 16 | 16 | 16 |
Sulfuric Acid (kg) | 34 | 34 | 34 | 34 |
Ammonia (kg) | 23 | 23 | 23 | 23 |
Sodium hydroxide (kg) | 45 | 45 | 45 | 45 |
Clarifier polymer (kg) | 1.1 | 1.1 | 1.1 | 1.1 |
Fermentation nutrients (kg) | 50 | 50 | 50 | 50 |
Lime (kg) | 26 | 0 | 26 | 0 |
Natural gas (GJ) | 53 | 58 | 19 | 28 |
Ethyl acetate (kg) | 5.2 | 5.2 | NA | NA |
Alamine (kg) | NA | NA | 1.9 | 1.9 |
Diisobutyl ketone (DIBK) (kg) | NA | NA | 1.9 | 1.9 |
Electricity (kwh) | 0 | 320 | 0 | 300 |
Output | ||||
Acetic acid (t) | 1 | 1 | 1 | 1 |
Lignin (bone dry) (kg) | 0 | 440 | 0 | 440 |
Electricity (kwh) | 2600 | 0 | 860 | 0 |
CO2 (from lignin) (t) | 1.8 | 0 | 1.8 | 0 |
CO2 (from natural gas) (t) | 2.7 | 3.2 | 0.99 | 1.4 |