A geographical assessment of vegetation carbon stocks and greenhouse gas emissions on potential microalgae-based biofuel facilities in the United States

被引：15
|
作者：
Arita, Carlos Quiroz [1 ]
Yilmaz, Ozge [2 ]
Barlak, Semin [2 ]
Catton, Kimberly B. [2 ]
Quinn, Jason C. [1 ]
Bradley, Thomas H. [1 ]
机构：
[1] Colorado State Univ, Mech Engn, 1374 Campus Delivery, Ft Collins, CO 80524 USA
[2] Colorado State Univ, Civil & Environm Engn, 1372 Campus Delivery, Ft Collins, CO 80523 USA
来源：
BIORESOURCE TECHNOLOGY | 2016年 / 221卷
基金：
美国国家科学基金会;
关键词：
Microalgae facilities; Carbon stocks; Direct land use change; Greenhouse gas emissions; LIFE-CYCLE ASSESSMENT; WATER FOOTPRINT; HYDROTHERMAL LIQUEFACTION; BIODIESEL PRODUCTION; RENEWABLE DIESEL; ALGAL BIOFUELS; CULTIVATION; ENERGY; AVAILABILITY; EXTRACTION;
D O I：
10.1016/j.biortech.2016.09.006
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The microalgae biofuels life cycle assessments (LCA) present in the literature have excluded the effects of direct land use change (DLUC) from facility construction under the assumption that DLUC effects are negligible. This study seeks to model the greenhouse gas (GHG) emissions of microalgae biofuels including DLUC by quantifying the CO2 equivalence of carbon released to the atmosphere through the construction of microalgae facilities. The locations and types of biomass and Soil Organic Carbon that are disturbed through microalgae cultivation facility construction are quantified using geographical models of microalgae productivity potential including consideration of land availability. The results of this study demonstrate that previous LCA of microalgae to biofuel processes have overestimated GHG benefits of microalgae-based biofuels production by failing to include the effect of DLUC. Previous estimations of microalgae biofuel production potential have correspondingly overestimated the volume of biofuels that can be produced in compliance with U.S. environmental goals. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：270 / 275
页数：6
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