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Table 1 EROI fossil , net life cycle GHG emissions, and direct WDs for examined biomass production pathways & locations

From: Microalgal biomass production pathways: evaluation of life cycle environmental impacts

Scenarios A* B* C* D* E* F* G* H* WD1
Location MEA/CF/NGD MEA/CFP/NGD DI/CF/NGD DI/CFP/NGD MEA/CF/WHD MEA/CFP/WHD DI/CF/WHD DI/CFP/WHD CFP CF
Mobile, AL 0.40 (44.2) 0.46 (22.5) 0.49 (18.9) 0.59 (−2.8) 0.60 (−0.4) 0.68 (−15.1) 0.86 (−25.7) 1.04 (−40.4) 22.1 22.3
Phoenix, AZ 0.38 (48.9) 0.43 (28.4) 0.47 (23.5) 0.56 (3.0) 0.57 (4.2) 0.64 (−9.2) 0.79 (−21.2) 0.94 (−34.6) 38.6 38.8
San Diego, CA 0.41 (32.0) 0.46 (16.0) 0.51 (6.3) 0.60 (−9.6) 0.63 (−12.6) 0.69 (−21.5) 0.91 (−38.3) 1.06 (−47.2) 32.8 33.0
Daytona Beach, FL 0.38 (43.0) 0.44 (22.7) 0.47 (17.5) 0.57 (−2.7) 0.58 (−1.6) 0.66 (−14.8) 0.81 (−27.1) 0.97 (−40.2) 24.1 24.3
Jacksonville, FL 0.38 (43.1) 0.44 (22.8) 0.47 (17.7) 0.57 (−2.6) 0.58 (−1.5) 0.66 (−14.7) 0.81 (−27.0) 0.97 (−40.1) 22.6 22.9
Key West, FL 0.38 (43.6) 0.44 (23.4) 0.47 (18.2) 0.57 (−2.1) 0.57 (−1.0) 0.65 (−14.2) 0.80 (−26.4) 0.97 (−39.6) 28.4 28.6
Miami, FL 0.38 (42.7) 0.44 (22.5) 0.48 (17.3) 0.57 (−3.0) 0.58 (−1.9) 0.66 (−15.1) 0.81 (−27.3) 0.98 (−40.5) 22.1 22.4
Tallahassee, FL 0.39 (42.4) 0.44 (22.2) 0.48 (17.0) 0.57 (−3.2) 0.58 (−2.2) 0.66 (−15.4) 0.82 (−27.6) 0.98 (−40.8) 20.8 21.1
Tampa, FL 0.38 (43.2) 0.44 (23.0) 0.47 (17.8) 0.57 (−2.5) 0.58 (−1.4) 0.65 (−14.6) 0.81 (−26.8) 0.97 (−40.0) 25.1 25.4
West Palm Beach, FL 0.38 (43.0) 0.44 (22.7) 0.47 (17.6) 0.57 (−2.7) 0.58 (−1.6) 0.66 (−14.8) 0.81 (−27.0) 0.97 (−40.2) 22.9 23.1
Savannah, GA 0.39 (45.0) 0.45 (23.2) 0.49 (19.7) 0.59 (−2.1) 0.60 (0.4) 0.68 (−14.3) 0.86 (−24.9) 1.03 (−39.6) 24.1 24.4
Baton Rouge, LA 0.39 (39.2) 0.45 (20.8) 0.49 (13.6) 0.58 (−4.7) 0.60 (−5.4) 0.67 (−16.8) 0.86 (−31.0) 1.01 (−42.3) 22.6 22.8
Lake Charles, LA 0.39 (39.0) 0.45 (20.6) 0.49 (13.5) 0.58 (−4.9) 0.60 (−5.6) 0.67 (−16.9) 0.86 (−31.1) 1.02 (−42.4) 23.0 23.2
New Orleans, LA 0.40 (38.9) 0.45 (20.5) 0.49 (13.4) 0.58 (−5.0) 0.60 (−5.7) 0.67 (−17.0) 0.86 (−31.2) 1.02 (−42.5) 22.1 22.3
Austin, TX 0.39 (41.5) 0.45 (20.6) 0.49 (16.1) 0.59 (−4.8) 0.59 (−3.1) 0.68 (−16.9) 0.85 (−28.5) 1.03 (−42.3) 29.8 30.0
Brownsville, TX 0.39 (41.8) 0.45 (20.9) 0.49 (16.4) 0.58 (−4.5) 0.59 (−2.8) 0.68 (−16.6) 0.84 (−28.2) 1.02 (−42.0) 30.6 30.8
Corpus Christi, TX 0.39 (42.1) 0.45 (21.3) 0.48 (16.8) 0.58 (−4.1) 0.59 (−2.5) 0.67 (−16.3) 0.84 (−27.8) 1.02 (−41.7) 29.7 29.9
Houston, TX 0.39 (42.0) 0.45 (21.1) 0.49 (16.7) 0.58 (−4.2) 0.59 (−2.6) 0.67 (−16.4) 0.84 (−27.9) 1.02 (−41.8) 25.6 25.8
Lufkin, TX 0.39 (41.5) 0.45 (20.6) 0.49 (16.1) 0.59 (−4.8) 0.59 (−3.1) 0.68 (−16.9) 0.85 (−28.5) 1.03 (−42.3) 26.1 26.3
Port Arthur, TX 0.40 (35.2) 0.46 (16.9) 0.51 (9.7) 0.60 (−8.6) 0.62 (−9.4) 0.70 (−20.6) 0.91 (−34.9) 1.08 (−46.2) 22.8 23.0
San Antonio, TX 0.39 (41.3) 0.45 (20.4) 0.49 (16.0) 0.59 (−4.9) 0.60 (−3.3) 0.68 (−17.1) 0.85 (−28.6) 1.03 (−42.5) 29.9 30.1
Victoria, TX 0.39 (41.9) 0.45 (21.0) 0.49 (16.5) 0.58 (−4.4) 0.59 (−2.7) 0.68 (−16.5) 0.84 (−28.1) 1.02 (−41.9) 27.4 27.7
  1. MEA monoethanolamine, DI direct injection, CF centrifuge, CFP chamber filter press, NGD natural gas drying, WHD waste heat drying.
  2. * Values in parentheses represent Net Life Cycle GHG Emissions expressed in unit of (g CO2 eq/MJ-Biomass). Values outside of parentheses represent EROIfossil. The last two columns represent water demand (WD).
  3. 1 The results for the WD are presented in units of (liters/MJ-biomass).