Page 285 - Biofuels for a More Sustainable Future

250 Biofuels for a More Sustainable Future

Table 8.7 Estimated coefficients and P-values: LCC of fish oil biodiesel
Term Estimate t Ratio Prob>|t|
Feedstock price 0.0010451 <.0001 †
Operating rate 0.0009817 <.0001 †
Capacity –0.001365 <.0001 †
Interest rate 1.9522147 <.0001 †
Biodiesel conversion efficiency –0.277292 <.0001 †
(Capacity-75)*(Capacity-75) 1.8359e-5 <.0001 †
(Biodiesel conversion efficiency-0.94)*(Feedstock –0.001095 <.0001 †
price-250)
(Feedstock price-250)*(Interest rate-0.04) 0.0037242 <.0001 †
(Interest rate-0.04)*(Operating rate-295) 0.0034087 <.0001 †
(Feedstock price-250)*(Feedstock price-250) –3.065e-8 0.1101
(Feedstock price-250)*(Capacity-75) –1.461e-7 0.1574
(Operating rate-295)*(Operating rate-295) –4.329e-8 0.2499
(Biodiesel conversion efficiency-0.94)*(Capacity-75) –0.000357 0.3011
(Biodiesel conversion efficiency-0.94)*(Interest rate- –0.768785 0.3944
0.04)
(Feedstock price-250)*(Operating rate-295) –1.707e-8 0.4448
(Capacity-75)*(Interest rate-0.04) 0.0008807 0.5326
(Interest rate-0.04)*(Interest rate-0.04) 1.9215701 0.6342
(Biodiesel conversion efficiency-0.94)*(Biodiesel 0.0703377 0.7846
conversion efficiency-0.94)
(Capacity-75)*(Operating ratet-295) –3.513e-8 0.7964
(Biodiesel conversion efficiency-0.94)*(Operating –0.000018 0.8345
crate-295)
† Significant at a 95% degree of confidence.

C WCO-biodiesel ¼ 0:308 0:167X 1 +0:00104X 2 0:00136X 3 +1:573X 4
ð
+0:00098X 5 0:00115 X 1 0:94Þ X 2 150Þ
ð
5 2
ð
ð
+1:89 10 ð X 3 75Þ +0:0033 X 4 0:04Þ X 5 295Þ
(8.14)
By plugging in extreme values of the parameters X 1 ,…, X 5 into
Eqs. (8.12)–(8.14), a range of values may be obtained for the LCC of each
of the feedstocks. The estimated cost of jatropha biodiesel in Vietnam ranges
from US$0.72 to US$1.02 per liter. The cost of fish oil biodiesel may range
between US$0.44 and US$0.87 per liter and, finally, the cost estimate of
waste cooking oil biodiesel is between US$0.37 and US$0.77 per liter.
The cost data was not made available because of confidentiality. So, these
are compared to the selling price of petroleum diesel, which, in 2015, was sell-
ing at US$0.42 to US$0.61 per liter (Global Petrol Prices, 2015)in Fig. 8.6.
Since this is the selling price of petroleum diesel, the actual cost of the diesel
would be actually much less. It can be seen that the primary conclusion is