liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Application of enzymes for pre-treatment of wood chips for energy efficient thermomechanical pulping
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, The Institute of Technology.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Thermomechanical pulping (TMP) is a highly energy intensive process where most of the energy is used in therefining of chips to fibres. Various ways of reducing the energy consumption have earlier been studied, for examplechange of refiner pattern, addition of various chemicals, and also some biochemical implementation in the form of fungus and enzymes. This study includes pre-trials with the enzymes pectin lyase and pectin esterase,multipectinase, xylanase, and mannanase. The results are studied via a reducing sugar assay, an enzymatic assayusing spectrophotometry, and capillary zone electrophoresis. The study also includes results from a pilot scalerefining with multipectinase, xylanase, and mannanase, performed with a wing refiner at Helsinki University.Reductions of energy consumption in TMP by pre-treatment of Norwegian spruce chips are investigated and apotential reduction of energy consumption of 6 % is indicated.

Place, publisher, year, edition, pages
2012. , 67 p.
Keyword [en]
Thermo mechanical pulping (TMP), Energy reduction, Enzyme, Pilot scale refining, Reducing sugar assay
National Category
Biochemistry and Molecular Biology
URN: urn:nbn:se:liu:diva-77463ISRN: LITH-IFM-A-EX--12/2587--SEOAI: diva2:536816
External cooperation
Subject / course
Chemical Biology
2012-06-04, 10:15
Physics, Chemistry, Mathematics
Available from: 2012-06-25 Created: 2012-05-17 Last updated: 2012-06-25Bibliographically approved

Open Access in DiVA

fulltext(3341 kB)803 downloads
File information
File name FULLTEXT01.pdfFile size 3341 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Mårtensson, Tomas
By organisation
Department of Physics, Chemistry and BiologyThe Institute of Technology
Biochemistry and Molecular Biology

Search outside of DiVA

GoogleGoogle Scholar
Total: 803 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 224 hits
ReferencesLink to record
Permanent link

Direct link