García Carlos A, Betancourt Ramiro, Cardona Carlos A
Instituto de Biotecnología y Agroindustria, Departamento de Ingeniería Química, Universidad Nacional de Colombia sede Manizales, Cra. 27 No. 64-60, Manizales, Colombia.
Instituto de Biotecnología y Agroindustria, Departamento de Ingeniería Química, Universidad Nacional de Colombia sede Manizales, Cra. 27 No. 64-60, Manizales, Colombia.
J Environ Manage. 2017 Dec 1;203(Pt 2):695-703. doi: 10.1016/j.jenvman.2016.04.001. Epub 2016 Apr 25.
New efforts in the search of alternative clean and renewable energy to replace the current energy precursors have been assessed in order to reduce emissions to the environment. Lignocellulosic Biomass (LB) can be used to produce bioenergy due to its high energy potential and availability. Different ways are proposed for the transformation of these residues into high added-value products. Thermochemical and biochemical technologies are the most interest concepts focusing on the use of biomass as source for energy production at positive net balances. This study presents the techno-economic, energy and environmental assessment of five scenarios for the hydrogen production through gasification and dark fermentation based on the biorefinery and stand-alone concepts. The results demonstrated that the production of hydrogen based on the concept of a biorefinery can improve the profitability, energy efficiency and reduce the emissions of the processes compared to that based on the stand-alone way. The selection of ethanol and electricity as valuable co-products of the biorefinery in the hydrogen production process confirmed that the process scale and products diversity makes possible a flexible and suitable process to produce hydrogen and other energy carriers from Pinus Patula.
为了减少对环境的排放，人们评估了寻找替代清洁和可再生能源以取代当前能源前驱体的新努力。木质纤维素生物质（LB）因其高能量潜力和可得性可用于生产生物能源。人们提出了不同的方法将这些残留物转化为高附加值产品。热化学和生物化学技术是最受关注的概念，重点是在净平衡为正的情况下将生物质用作能源生产的来源。本研究基于生物炼制和独立概念，对通过气化和暗发酵制氢的五种方案进行了技术经济、能源和环境评估。结果表明，与基于独立方式的制氢相比，基于生物炼制概念的制氢可以提高盈利能力、能源效率并减少过程排放。在制氢过程中选择乙醇和电力作为生物炼制的有价值的副产品，证实了工艺规模和产品多样性使从展叶松生产氢气和其他能源载体成为一个灵活且合适的过程。
