Preparation of Biomass Hydrochar and Application Analysis of Blast Furnace Injection

作     者：Wang, Guangwei Li, Renguo Dan, Jiayun Yuan, Xiang Liu, Jiawen Xu, Kun Ning, Xiaojun Wang, Chuan 

作者机构：State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing Beijing100083 China Hunan Valin Xiangtan Iron and Steel Co Ltd Xiangtan411101 China Swerim AB LuleåSE-971 25 Sweden Thermal and Flow Engineering Laboratory Åbo Akademi University ÅboFI-20500 Finland 

出 版 物：《SSRN》 

年 卷 期：2022年

核心收录：

主　　题：Biomass 

摘      要：Hydrothermal carbonization technology(HTC) was used to carbonize and improve biomass raw material to get hydrochar. The effects of HTC temperature and holding time on the yield, composition, structure, combustion behavior and safety of hydrochar were studied systematically. The results show that with the increase of HTC temperature and the prolongation of holding time, the yield of hydrochar is gradually reduced, the fixed carbon content of hydrochar increases, the volatile content decreases, and a large number of ash and alkali metals enter the liquid phase and are removed. The analysis of the combustion properties and structure of hydrochar can be seen that the HTC process promotes the occurrence of polymerization reactions, the specific surface area is gradually reduced, the degree of carbon ordering increases, and the combustion curve moves towards the high temperature zone and gradually approaches bituminous coal. Since biomass hydrochar has the characteristics of carbon neutrality, blast furnace injection hydrochar can reduce CO 2 emissions, and every 1 kg/tHM of biomass hydrochar can reduce CO 2 emissions 1.95 kg/tHM. © 2022, The Authors. All rights reserved.