Zhang Yimeng, Ma Huanhuan, Chen Dengyu, Zhou Jianbin
College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
ACS Omega. 2020 Dec 30;6(1):633-641. doi: 10.1021/acsomega.0c05150. eCollection 2021 Jan 12.
Biomass gasification polygeneration technology can well address both the economic and environmental issues that impeded the development of biomass gasification technology. To further improve the utilization efficiency of biomass, preactivation of gasified carbon is realized in the gasification reactor. The aim of this study is to adopt a new gasification reactor and an environmental protection combustion chamber to obtain high value-added activated carbon with clean heating. In this paper, an experimental study on the fruit-wood waste gasification heating coproduction of an activated carbon system was carried out. The results show that the yield of gasified carbon is 20.22%, the specific surface area of gasified carbon reaches 590 m/g, the yield of activated carbon is 10.37%, and the gas yield is 1.9 Nm/kg. The gasification efficiency of the system is 57.83%, the energy that is transferred to the activated carbon is 18.72%, and the percentage of fixed carbon is 24.3%. Compared with the biomass particle, coal, and natural gas heating projects, the environmental protection benefits of the project are significant, and the negative emission of CO is realized. Compared with the heating benefit of coal and natural gas, the economic benefit of this project is more significant.
生物质气化多联产技术能够很好地解决阻碍生物质气化技术发展的经济和环境问题。为进一步提高生物质的利用效率，在气化反应器中实现了气化炭的预活化。本研究的目的是采用新型气化反应器和环保燃烧室，以清洁供热的方式获得高附加值的活性炭。本文对果木废弃物气化供热联产活性炭系统进行了实验研究。结果表明，气化炭产率为20.22%，气化炭比表面积达到590 m/g，活性炭产率为10.37%，产气率为1.9 Nm/kg。系统气化效率为57.83%，转移到活性炭的能量为18.72%，固定碳含量为24.3%。与生物质颗粒、煤炭和天然气供热项目相比，该项目的环保效益显著，实现了CO的负排放。与煤炭和天然气的供热效益相比，该项目的经济效益更显著。
