State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
Department of Pharmaceutical Engineering, China Pharmaceutical University, Nanjing 210009, China.
Bioresour Technol. 2021 Jan;319:124108. doi: 10.1016/j.biortech.2020.124108. Epub 2020 Sep 11.
Biomass utilization is facing great challenge mainly due to the low profit margin of biomass products. Bio-energy plants using gasification and liquefaction technologies are barely surviving, while biomass to activated carbon (AC) route has been demonstrated economically successful. In this work, spent mushroom substrate was used to produce AC and fuel gas with two different processes using internal flue gas and external air as activation agents, respectively. Experimental work was conducted to produce input data for Aspen Plus simulation including processing temperature, flue gas composition, AC yield, etc. Techno-economic analysis was performed, which reveals a great economic potential of integrating AC production in biomass processing. Air activation has obvious advantage in economic benefits, while the risk of precise temperature control and operation stability needs to be carefully evaluated in large-scale production. Flue gas activation is more reliable and it also generates less CO that is beneficial for the long-term operation.
生物质利用面临巨大挑战，主要是由于生物质产品的利润率低。使用气化和液化技术的生物能源工厂几乎难以生存，而生物质到活性炭（AC）的路线已被证明在经济上是成功的。在这项工作中，使用两种不同的工艺，分别使用内部废气和外部空气作为活化剂，利用废弃的蘑菇基质生产 AC 和燃料气。进行了实验工作，以产生用于 Aspen Plus 模拟的输入数据，包括加工温度、废气组成、AC 产率等。进行了技术经济分析，结果表明，在生物质加工中集成 AC 生产具有巨大的经济潜力。空气活化在经济效益方面具有明显的优势，而在大规模生产中需要仔细评估精确温度控制和操作稳定性的风险。废气活化更可靠，并且产生的 CO 更少，有利于长期运行。
