Research Article

Economic Impact of NMMO Pretreatment on Ethanol and Biogas Production from Pinewood

Table 6

The profitability parameters of the processes.

Scenario1234

PretreatmentNMMONMMOSteam explosionSteam explosion

ProductEthanol/biogasBiomethaneEthanol/biogasBiomethane

Payback period (year)6.38.36.27.6
Net return rate (NRR) (%)14.6āˆ’6.316.7āˆ’3.0
Profitability index (PI)1.140.931.160.96