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Study on Molding and Combustion Characteristics of Wheat Pulp Pellet Fuel
Received:July 31, 2021  
DOI：10.11980/j.issn.0254-508X.2022.03.006
Key Words:wheat residue  pulping waste liquid  pellet fuel  formation characteristics  combustion properties
Fund Project:国家重点研发计划项目（2019YFC1905904）；山东省重点研发计划（2019JZZY010326，2019JZZY010328）；山东省科教产融合创新试点工程（2020KJC-ZD14）。
Author NameAffiliationPostcode
HOU Huimin State Key Lab of Bio-based Material and Green Papermaking/Key Lab of Pulp & Paper Science and Technology， Ministry of Education， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 250353
YANG Guihua* State Key Lab of Bio-based Material and Green Papermaking/Key Lab of Pulp & Paper Science and Technology， Ministry of Education， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 250353
LIN Zhaoyun State Key Lab of Bio-based Material and Green Papermaking/Key Lab of Pulp & Paper Science and Technology， Ministry of Education， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 250353
LIU Zhaoxiang State Key Lab of Bio-based Material and Green Papermaking/Key Lab of Pulp & Paper Science and Technology， Ministry of Education， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 250353
JIANG Qimeng State Key Lab of Bio-based Material and Green Papermaking/Key Lab of Pulp & Paper Science and Technology， Ministry of Education， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 250353
CHEN Jiachuan State Key Lab of Bio-based Material and Green Papermaking/Key Lab of Pulp & Paper Science and Technology， Ministry of Education， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 250353
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Abstract:Using wheat straw waste residue and pulp waste liquid from the material preparation section of pulp and papermaking mill as raw materials， wheat residue based biomass pellet fuel was prepared by hydraulic molding machine， and its forming characteristics and combustion characteristics were investigated. The influence of grain size of wheat residue and the amount of waste liquid on the forming effect of fuel particles was studied， and the change rules of ash， volatilization， fixed carbon and caloric value of fuel particles were analyzed. The optimal preparation conditions of wheat straw waste residue pellet fuel were obtained. The results showed that the molding density gradually increased with the decrease of grain size. The optimal preparation conditions were that the grain size of wheat residue was in the range of 0.45~0.90 mm and the amount of waste liquid was 10%. Under these conditions， the surface of pellet fuel was smooth， the density was 1.26 g/cm3， and the compressive strength was 58.1 MPa. When the calorific value of combustion was up to 14807 J/g and the amount of waste liquid was higher than 10%， the forming structure was unstable.
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