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Study on Enzymatic Beating of P-RC APMP
  
DOI：10.11980/j.issn.0254-508X.2011.03.001
Key Words:P-RC APMP  cellulase  enzymatic beating  energy saving
Fund Project:本课题得到中国-加拿大政府间国际科技合作项目（2008DFA91290）和国家科技部科技支撑计划项目（2006BAD32B04）的资助。
Author NameAffiliation
刘　俊1 1. 天津科技大学天津市制浆造纸重点实验室,天津,300457 
胡惠仁1 1. 天津科技大学天津市制浆造纸重点实验室,天津,300457 
王斌斌2 2.天津科技大学工业微生物教育部重点实验室,天津,300457 
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Abstract:In this study, different enzymes were used to pre-treat P-RC APMP pulp before refining in order to find out the enzymes which can be used for enzymatic beating of P-RC APMP. The enzymes treatment conditions (including the treatment temperature, time, pH, pulp concentration and refining conditions) were optimized and the feasibility of enzymatic beating of high yield pulp was evaluated. Results showed that the enzyme cellulase with the symbol of Novozyme 476 is suitable for the enzymatic beating of P-RC APMP, and the optimal conditions are: 55℃, pH value 6.5, enzyme treatment time 1.5 h, pulp consistency 3%，PFI mill refining time 90 s. At this condition, the beating degree increases by 9°SR when the refining conditions are the same as the control sample, and energy consumption can be saved by about 22.2% compared with the same beating degree. There is no negative impact caused by enzyme treatment on the paper strength.
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