Skip to main content

Table 8 Variable operational costs and prices of products used in the calculations

From: Combined production of biogas and ethanol at high solids loading from wheat straw impregnated with acetic acid: experimental study and techno-economic evaluation

 

Cost/unit

Units

Input

 Wheat strawa

0.09

EUR/kg DM

 Enzyme

3.00

EUR/106 FPU

 Acetic acidb

0.17

EUR/kg

 Phosphoric acid (50 wt%)b

0.56

EUR/kg

 (NH4)2HPO b4

0.67

EUR/kg

 MgCl b2

0.17

EUR/kg

 Ammonia (25 wt%)c

0.22

EUR/kg

 Antifoamd

2.22

EUR/kg

Utilities

 Process watere

0.16

EUR/kg

 Cooling watere

0.02

EUR/kg

Products

 Ethanol

0.67

EUR/L

 Biogas, rawf

33.00

EUR/MWh

 Biogas, upgraded to vehicle fuel qualityf

67.00

EUR/MWh

 Electricity (spot and certificate price)g

0.67

EUR/MWh

 Carbon dioxideh

0.003

EUR/kg

  1. aRef. [54]
  2. bRef. [55]
  3. cRef. [56]
  4. dRef. [57]
  5. eRef. [58]
  6. fRef. [59]
  7. gRef. [34]
  8. hRef. [60]