Niño-Villalobos Antonio, Puello-Yarce Jaime, González-Delgado Ángel Darío, Ojeda K A, Sánchez-Tuirán Eduardo
Process Design and Biomass Utilization Research Group (IDAB), Chemical Engineering Department, University of Cartagena, Cartagena, Bolívar 130015, Colombia.
Nanomaterials and Computer Aided Process Engineering Research Group (NIPAC), Chemical Engineering Department, University of Cartagena, Cartagena, Bolívar 130015, Colombia.
ACS Omega. 2020 Mar 26;5(13):7074-7084. doi: 10.1021/acsomega.9b03049. eCollection 2020 Apr 7.
The biodiesel from lignocellulosic materials has been widely recognized as an alternative fuel to meet energy requirements worldwide, facing fossil fuel depletion, and emerging energy policies. In this work, the biorefinery approach was applied for biodiesel production from jatropha and palm oils in order to make it economically competitive by the utilization of residual biomass as the feedstock for obtaining hydrogen via steam reforming of glycerol and gasification. The linear chains for hydrogen and diesel were simulated using UniSim software and main stream properties were collected from the literature or predicted by correlations. The proposed scheme of biorefinery was analyzed through environmental and techno-economic assessment to identify the feasibility of this process to be implemented. Three different blends of oils (JO10-PO90, JO20-PO80, and JO30-PO70) were considered in the environmental analysis to determine alternatives for reducing potential environmental impacts (PEIs). It was found that the acidification potential highly contributed to the environmental impacts attributed to the use of fossil fuels for heating requirements, and JO30-PO70 blend exhibited the lowest PEI value. The economic indicators were calculated to be 8,455,147.29 $USD and 33.18% for the net present value and internal rate of return, respectively. These results revealed that the proposed combined biomass biorefinery is feasible to be scaled up without causing significant negative impacts on the environment.
面对化石燃料枯竭和新兴能源政策，来自木质纤维素材料的生物柴油已被广泛认可为满足全球能源需求的替代燃料。在这项工作中，采用生物精炼方法从麻风树油和棕榈油生产生物柴油，通过利用残余生物质作为原料，经甘油蒸汽重整和气化获取氢气，使其具有经济竞争力。使用UniSim软件模拟了氢气和柴油的线性链，并从文献中收集或通过关联预测主流性质。通过环境和技术经济评估对所提出的生物精炼方案进行分析，以确定该工艺实施的可行性。在环境分析中考虑了三种不同的油混合比例（JO10-PO90、JO20-PO80和JO30-PO70），以确定减少潜在环境影响（PEI）的替代方案。结果发现，酸化潜力对因使用化石燃料供热而产生的环境影响贡献很大，JO30-PO70混合比例的PEI值最低。计算得出的经济指标分别为净现值8,455,147.29美元和内部收益率33.18%。这些结果表明，所提出的联合生物质生物精炼方案在扩大规模时可行，且不会对环境造成重大负面影响。
