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Rheological Properties and Desilication during Combustion of Bamboo Kraft Black Liquor
  
DOI：10.11980/j.issn.0254-508X.2016.04.006
Key Words:bamboo pulping black liquor  rheological properties  combustion desilication
Fund Project:“十二五”国家科技支撑计划项目(2012BAD23B02)；国家自然科学基金(20876092)；陕西科技大学学术带头人团队基金项目(2013XSD25)。
Author NameAffiliation
徐永建1 1.陕西科技大学轻工与能源学院,陕西省造纸技术及特种纸品开发重点实验室,陕西西安，710021 
章伟鹏1 1.陕西科技大学轻工与能源学院,陕西省造纸技术及特种纸品开发重点实验室,陕西西安，710021 
孙 浩1 1.陕西科技大学轻工与能源学院，陕西省造纸技术及特种纸品开发重点实验室，陕西西安，710021 
张鼎军2 2.贵州赤天化纸业有限责任公司，贵州赤水，564700 
田 勇2 2.贵州赤天化纸业有限责任公司，贵州赤水，564700 
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Abstract:The rheological properties of high concentration bamboo kraft pulping black liquor and the effect of aluminum salts on desilication of black liquor in combustion were studied. The results indicated that bamboo pulping black liquor under the shear rates ranging from 0.1 s-1 to 100 s-1 was approximate to the non-Newtonian fluid and the phenomenon of shear-thinning was obvious. However, bamboo pulping black liquor with high solid content was consistent with the power-law region in a certain range of shear rate and the shear-thinning phenomenon was more evident. Aluminum salts behaved favorable silica removal effects during the black liquor combustion. The SEM-EDAX analysis illustrated the aluminum could react with silicon ions to form the precipitates.
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