水热碳化
稻草
燃烧
燃烧热
原材料
碳化
化学
固体燃料
煤
生物量(生态学)
碳纤维
化学工程
高炉
制浆造纸工业
材料科学
农学
有机化学
复合材料
复合数
生物
工程类
无机化学
吸附
作者
Guangwei Wang,Jianliang Zhang,Jui‐Yuan Lee,Xiaoming Mao,Lian Ye,XU Wanren,Xiaojun Ning,Nan Zhang,Haipeng Teng,Chuan Wang
出处
期刊:Applied Energy
[Elsevier]
日期:2020-03-19
卷期号:266: 114818-114818
被引量:99
标识
DOI:10.1016/j.apenergy.2020.114818
摘要
The aim of this paper was to investigate the characterized hydrochar of maize straw prepared via the hydrothermal carbonization (HTC) process as a solid fuel for blast furnace injection. The effect of HTC conditions on the yield, physicochemical properties and combustion reactivity of hydrochar were evaluated by varying the HTC temperature over the range of 220–340 °C and the HTC time over the range of 15–120 min. The results showed that with the increase in HTC temperature and time, the yields, H/C and O/C values of hydrochar decreased, and the higher heating value increased. These characteristic changes in hydrochar are similar to those in bituminous coal because of dehydration and decarboxylation. The physicochemical properties and structure analyses showed that the specific surface area increased first and then decreased; meanwhile, the CC, CO and aromatic functional groups gradually increased. The carbonaceous structure of hydrochar became more compact, orderly and stable. Compared to the feedstock of maize straw, the combustion of hydrochar was expected to have higher ignition energy and become more stable with its higher ordering degree of the carbonaceous structure. HTC could be used as an effective method to convert maize straw biomass to a high quality solid injection fuel for the blast furnace.
科研通智能强力驱动
Strongly Powered by AbleSci AI