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Study on Fusion Characteristics and High-Temperature Transformation Behavior of Bamboo Ash(PDF)

《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

Issue:
2020 01
Page:
69-74
Research Field:
Publishing date:

Info

Title:
Study on Fusion Characteristics and High-Temperature Transformation Behavior of Bamboo Ash
Author(s):
Liu Heng1Zhu Youjian 12Fan Jiyuan1Yang Wei1Cheng Wei1Yang Haiping1Chen Hanping1
1. School of Energy and Power Engineering,Huazhong University of Science & Technology,Wuhan 430074,China;2. School of Energy and Power Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002,China
Keywords:
bamboocombustionash fusion characteristicsinorganics transformation
PACS:
TK6
DOI:
10.11715/rskxjs.R201903002
Abstract:
In this paper, the morphology and composition of bamboo ash at elevated temperatures were investigated. The effects of different temperatures on the fusion and transformation behavior of bamboo ash were studied with poplar and wheat straw as a comparison. Results show that bamboo had a low ash melting temperature of 862 °C, about 220 °C lower than that of poplar (which is also a woody biomass) but 100 °C higher than that of straw. Compared with straw, bamboo contained a higher content of S, P and alkaline earth metals, which facilitated the formation of high-melting-point substances such as sulfates, phosphates and silicates. In addition, K in bamboo usually existed in the form of K2O instead of KCl that has a higher reactivity/volatility. As a result, the fusion and sintering tendencies of bamboo were lower than those of straw biomass but significantly higher than those of woody biomass. Therefore, appropriate countermeasures are needed to solve the relevant problems (e.g., fusion and sintering) in the practical applications of bamboo combustion.

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Last Update: 2020-01-17