Integrating first, second, and third generation biorefineries: Incorporating microalgae into the sugarcane biorefinery

被引：121
作者：
Moncada, Jonathan [1 ]
Tamayo, Johnny A. [2 ]
Cardona, Carlos A. [1 ]
机构：
[1] Univ Nacl Colombia, Dept Ingn Quim, Inst Biotecnol & Agroind, Manizales, Colombia
[2] Univ Nacl Colombia, Dept Ingn Ind, Inst Biotecnol & Agroind, Manizales, Colombia
来源：
CHEMICAL ENGINEERING SCIENCE | 2014年 / 118卷
关键词：
Integrated biorefinery; Hierarchy; Integration; Microalgae; Sequence; Sugarcane; HEAT-EXCHANGER NETWORKS; REDUCTION WAR ALGORITHM; OIL PALM INDUSTRY; ENVIRONMENTAL ASSESSMENT; TECHNOECONOMIC ANALYSIS; CHLORELLA-VULGARIS; FUEL ETHANOL; BIOETHANOL; ENERGY; BIODIESEL;
D O I：
10.1016/j.ces.2014.07.035
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this study, it was discussed the possibilities of integrating biorefineries based on different generations of feedstock. The potential of using CO2-rich streams was analyzed for the cultivation and harvesting of microalgae biomass. In addition, the extraction of microalgae oil and its further transformation into biodiesel was considered. To achieve this, a techno-economic and environmental analysis of two biorefinery scenarios was performed based on sugarcane. Scenario 1 considers the joint production of sugar, ethanol, and electricity. Scenario 2 is an extension of Scenario 1 that also considers Chlorella sp. cultivation using CO2-rich streams derived from fermentation and cogeneration systems. After microalgae cultivation and harvesting, the extracted oil is used as the raw material to obtain biodiesel and glycerol as additional products, as well as electricity, ethanol, and sugar. Scenario 2 has the best performance from environmental and economic perspectives. For Scenario 2, it was determined that the economic net present value (NPV) is 183.94M.USD/y (lifetime of 10 years). The potential environmental impact (PEI) is 44.99 PEI/t of products, with the potential to reduce CO2 emissions by 395, compared with Scenario 1. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：126 / 140
页数：15
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