北京科技大学学报2012，Vol.34Issue(9)：998-1005,8.
炼铁用生物质焦的制备及其性能
Preparation and properties of biomass char for ironmaking
摘要
Abstract
Raw biomass was carbonized by two different heating patterns to produce biomass char at 400, 500, 600 and 700 ℃ for 30, 60 and 90 min. The composition, microstructure, and combustibility of the derived biomass char were investigated by scanning electron microscopy （SEM） and thermogravimetric analysis （TG-DTG）. The effects of preparing conditions on the biomass cbar＇s yield and reactivity for reacting with CO2 were studied. It is shown that the biomass char has typical duct structure or sheet structure, which is different from coal. The contents of N, S, ash and alkali metals in the biomass char are much lower, but its combustibility is better than coal samples, suitable for using as a reducing agent and a heating agent in ironmaking to partially replace coal and coke. The opti- mum preparing condition of biomass char for ironmaking is to carbonize raw biomass by a constant temperature heating pattern at 500 ℃ for 30 min.关键词
炼铁/生物质焦/碳化/燃烧/气化/反应性Key words
ironmaking/biomass char/carbonization/combustion/gasification/reactivity分类
矿业与冶金引用本文复制引用
胡正文,张建良,左海滨,李净,刘征建,杨天钧..炼铁用生物质焦的制备及其性能[J].北京科技大学学报,2012,34(9):998-1005,8.基金项目
国家自然科学基金资助项目 （）
