Table 2 Key process assumptions regarding the RJF conversion technologies [8, 29, 30, 55, 56]
From: Life-cycle analysis of greenhouse gas emissions from renewable jet fuel production
Process | Unit | HEFA [29] | FT [55] | Pyrolysis [56] | HTL [56] | ATJ [30] | DSHC [8] | |||
|---|---|---|---|---|---|---|---|---|---|---|
Sub-process | Ex situ | In situ | Ex situ | In situ | Increased blend level | 10% blend level | ||||
Inputs | ||||||||||
 Feed | MJ feed/MJ RJF | 1.17 | 12.93 | 26.39 | 26.39 | 16.89 | 16.89 | 1.49a | 6.28 | 3.25 |
 Natural gas consumptionb | MJ/MJ RJF | 0.18 |  |  |  |  |  |  |  |  |
 Electricity consumption | MJ/MJ RJF | 0.005 |  |  | 1.53 | 0.21 | 0.86 | 0.03 |  |  |
 Hydrogen consumption | MJ/MJ RJF | 0.15 |  | 5.44 |  | 1.31 |  | 0.08 | 0.52 | 0.12 |
 Hydrogen feedstock |  | Natural gas |  | Natural gas | Process off-gases | Natural gas | Process off-gases and waste water | Natural gas | Natural gas | Natural gas |
Outputs | ||||||||||
 Co-product allocation ratio | ||||||||||
  RJF | Normalized | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
  Diesel | MJ/MJ RJF |  | 3.00 | 2.95 | 2.95 | 2.95 | 2.95 | 0.12 | 0.15 |  |
  Gasoline | MJ/MJ RJF |  | 1.69 | 7.88 | 7.88 | 4.57 | 4.57 |  |  |  |
  Heavy fuel oil | MJ/MJ RJF |  |  | 2.17 | 2.17 | 1.65 | 1.65 |  |  |  |
  Naphtha | MJ/MJ RJF | 0.14 |  |  |  |  |  | 0.21 | 0.54 |  |
  Propane | MJ/MJ RJF | 0.10 | 0.49 |  |  |  |  |  |  |  |
  Methane | MJ/MJ RJF |  | 0.24 |  |  |  |  |  |  |  |
  Electricity | MJ/MJ RJF |  | 0.45 | 0.51 |  |  |  |  | 0.13 | 0.07 |