Page 180 - Biofuels for a More Sustainable Future

CHAPTER 6

Hot-spots and lessons learned

from life cycle sustainability

assessment of inedible

vegetable-oil based biodiesel

in Northern Viet Nam

‡
†
Tu Anh Nguyen*, Keito Nakagawa , Hung Phuoc Duong , Yasuaki
§
Maeda , Koji Otsuka*
*
Graduate School of Humanities and Sustainable System Sciences, Osaka Prefecture University, Sakai, Japan
†
Plant Engineering Division, Mitsubishi Heavy Industries Environmental and Chemical Engineering Co., Ltd.,
Yokohama, Japan
‡ International Cooperation Department, Ministry of Natural Resources and Environment, Ha Noi, Viet Nam
§
Research Organization for University-Community Collaborations, Osaka Prefecture University, Sakai, Japan
Contents
1 Introduction 166
2 Potential cultivation areas and feedstocks for biodiesel
production in Northern Viet Nam 169
2.1 Pongamia pinnata 169
2.2 Hibiscus sabdariffa L. 169
2.3 Vernicia montana L. 171
2.4 Proposed cultivation areas 171
2.5 Promising feedstocks for biodiesel production 172
2.6 Goal and scope of the study 173
2.7 System boundary and functional unit 173
3 Inclusive impact index (Triple I) 176
3.1 Ecological footprint and biocapacity estimation method 177
3.2 Conversion factor calculation 177
4 Life cycle inventory (LCI) 178
4.1 Determination of exhaust gas composition 178
4.2 Allocation methods 183
4.3 Net present value (NPV) and discount rate calculation 184
4.4 Base case assumption 184
4.5 Base case scenario 186
4.6 Scenario development 193
4.7 Sensitivity analysis approach 193

Biofuels for a More Sustainable Future © 2020 Elsevier Inc.
https://doi.org/10.1016/B978-0-12-815581-3.00006-3 All rights reserved. 165