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《Transactions of China Pulp and Paper》 2009-03
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Lipase Treatment of Pitch in Papermaking with TMP as Main Furnish

HU Hui-ren1, WANG Song-lin2(1.Tianjin Key Lab of Pulp and Paper,Tianjin University of Science & Technology,Tianjin,300457;2.College of Chemical Engineening,Qingdao University of Science & Technology,Qingdao,Shandong Province,266042)  
The dissolved and colloidal substances(DCS)in papermaking with TMP as main furnish contain certain amount of pitch species which can deposite on the surface of equipment,cause papermachine shut down and the quality of paper product decrease.Experiment results showed that treating the simulated white water with lipase could reduce the cationic demand by 20%.Cupric-glycerinate-colorimetric method and GC-MS were used for the analysis of degraded components caused by lipase treatment.Fat acid and alcohol species were identified by GC-MS analysis,which indicated that pitch species could be decomposed by lipase.
【Fund】: 国家自然科学基金(项目编号30771694);; 天津市科技计划发展项目(项目编号06TXTJJC14302)的资助
【CateGory Index】: TS743.3
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