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Research Progress in Rheology of High Solid Content Black Liquor
Received:June 10, 2022  
DOI：DOI：10.11980/j.issn.0254-508X.2022.12.015
Key Words:high solid content black liquor  viscosity  viscoelasticity  rheological properties  rheological models
Fund Project:国家自然科学基金面上项目（21978161）；陕西科技大学学术带头人团队项目（2013XSD25）。
Author NameAffiliationPostcode
GUO Kangkang College of Bioresources Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， Key Lab of Paper Based Functional Materials of China National Light Industry， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
XU Yongjian* College of Bioresources Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， Key Lab of Paper Based Functional Materials of China National Light Industry， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
WANG Yiwei College of Bioresources Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， Key Lab of Paper Based Functional Materials of China National Light Industry， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
YUE Xiaopeng College of Bioresources Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， Key Lab of Paper Based Functional Materials of China National Light Industry， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
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Abstract:The rheological properties of high solid content black liquor， including viscosity， shear thinning property， thixotropy and viscoelasticity， were descripted in this paper； the factors affecting the rheological properties of high solid content black liquor， including the ratio and long-chain structure of organics， solid content， temperature， pH value and silicon interference， were also introduced； the rheological properties characterization techniques of high solid content black liquor and its rheological property fitting models were summarized. The rheological properties of high solid content black liquor affected the pre-furnace pressure tank pumping， pipeline conveying and nozzle atomization. Therefore， it was necessary to comprehensive grasp the influencing factors and change laws of the rheological properties of high solid content black liquor for the optimization and improvement of the black liquor alkali recovery system.
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