Per Engstrand

Spara favorit

Publikationer

Artiklar i tidskrifter

Sandberg, C. , Berg, J. & Engstrand, P. (2017). Low consistency refining of mechanical pulp - system design. TAPPI Journal, vol. 16: 7, ss. 419-429.

Nelsson, E. , Paulsson, M. , Sandberg, C. , Svensson-Rundlöf, E. & Engstrand, P. (2017). Low dosage sulfite pretreatment at different refining temperatures in mill scale TMP production. Nordic Pulp & Paper Research Journal, vol. 32: 1, ss. 59-69.    

Sandberg, C. , Berg, J. & Engstrand, P. (2017). Mill evaluation of an intensified mechanical pulping process. Nordic Pulp & Paper Research Journal, vol. 32: 2, ss. 204-210.    

Sandberg, C. , Berg, J. & Engstrand, P. (2017). Process intensification in mechanical pulping. Nordic Pulp & Paper Research Journal, vol. 32: 4, ss. 615-622.    

Afewerki, S. , Alimohammadzadeh, R. , Osong, S. H. , Tai, C. , Engstrand, P. & Cordova, A. (2017). Sustainable Design for the Direct Fabrication and Highly Versatile Functionalization of Nanocelluloses. Global Challenges, vol. 1: 7    

Rahman, H. , Lindström, M. E. , Sandström, P. , Salmen, L. & Engstrand, P. (2017). The effect of increased pulp yield using additives in the softwood kraft cook on the physical properties of low-grammage handsheets. Nordic Pulp & Paper Research Journal, vol. 32: 3, ss. 317-323.    

Osong, S. H. , Dahlström, C. , Forsberg, S. , Andres, B. , Engstrand, P. , Norgren, S. & Engström, A. (2016). Nanofibrillated cellulose/nanographite composite films. Cellulose (London), vol. 23: 4, ss. 2487-2500.  

Osong, S. H. , Norgren, S. , Engstrand, P. , Lundberg, M. , Reza, M. & Tapani, V. (2016). Qualitative evaluation of microfibrillated cellulose usingthe crill method and some aspects of microscopy. Cellulose (London), vol. 23: 6, ss. 3611-3624.    

Göransson, K. , Söderlind, U. , Engstrand, P. & Zhang, W. (2015). An experimental study on catalytic bed materials in a biomass dual fluidised bed gasifier. Renewable energy, vol. 81, ss. 251-261.  

Zhang, W. , He, J. , Engstrand, P. & Björkqvist, O. (2015). Economic evaluation on bio-synthetic natural gas production integrated in a thermomechanical pulp mill. Energies, vol. 8: 11, ss. 12795-12809.    

Göransson, K. , Söderlind, U. , Henschel, T. , Engstrand, P. & Zhang, W. (2015). Internal tar/CHreforming in a biomass dual fluidised bed gasifier.. Biomass Conversion and Biorefinery, vol. 5, ss. 355-366.  

Nelsson, E. , Sandberg, C. , Svensson-Rundlöf, E. , Engstrand, P. , Fernando, D. & Daniel, G. (2015). Low dosage sulfite pretreatment in a modern TMP-line. Nordic Pulp & Paper Research Journal, vol. 30: 4, ss. 591-598.    

Berg, J. , Sandberg, C. , Engberg, B. A. & Engstrand, P. (2015). Low-consistency refining of mechanical pulp in the light of forces on fibres. Nordic Pulp & Paper Research Journal, vol. 30: 2, ss. 225-229.    

Walter, K. , Paulsson, M. & Engstrand, P. (2014). Acid Hydrogen Peroxide Treatment of Norway Spruce TMP : The Effect of an Extended pH Range when Catalyzed by Free Ferrous and Free or EDG/EDTA-Chelated Ferric Ions. Journal of wood chemistry and technology, vol. 34: 2, ss. 135-155.  

Osong, S. H. , Norgren, S. , Engstrand, P. , Lundberg, M. & Hansen, P. (2014). Crill : A novel technique to characterize nano-ligno-cellulose. Nordic Pulp & Paper Research Journal, vol. 29: 2, ss. 190-194.  

Osong, S. H. , Norgren, S. & Engstrand, P. (2014). Paper strength improvement by inclusion of nano-ligno-cellulose to Chemi-thermomechanical pulp. Nordic Pulp & Paper Research Journal, vol. 29: 2, ss. 309-316.  

Enberg, S. , Rundlöf, M. , Paulsson, M. , Axelsson, P. , Eriksen, O. & Engstrand, P. (2014). Some causes of formation of colour during storage of hydrogen-peroxide bleached Norway spruce mechanical pulp. Nordic Pulp & Paper Research Journal, vol. 29: 2, ss. 356-366.  

Karlsson, A. , Paulsson, M. , Engstrand, P. & Hedenström, E. (2014). Strategies to reduce heat-induced darkening for enhanced bleachability of mechanical pulps. Appita journal, vol. 67: 1, ss. 50-57.

Enberg, S. , Rundlöf, M. , Paulsson, M. , Axelsson, P. , Eriksen, O. & Engstrand, P. (2014). The influence of process waters on optical properties during storage of hydrogen-peroxide bleached Norway spruce mechanical pulp. Nordic Pulp & Paper Research Journal, vol. 29: 2, ss. 344-355.    

Osong, S. H. , Norgren, S. & Engstrand, P. (2013). An approach to produce nano-ligno-cellulose from mechanical pulp fine materials. Nordic Pulp & Paper Research Journal, vol. 28: 4, ss. 472-479.      

Fjellström, H. , Engstrand, P. & Htun, M. (2013). ON THE RELATIONSHIP BETWEEN WOOD FIBRE WALL SWELLING, CHARGED GROUPS, AND DELAMINATION DURING REFINING. J-FOR-JOURNAL OF SCIENCE & TECHNOLOGY FOR FOREST PRODUCTS AND PROCESSES, vol. 3: 4, ss. 30-34.  

Fjellström, H. , Engstrand, P. & Htun, M. (2013). On the relationship between wood fibre wall swelling, charged groups, and delamination during refining. Journal of Science & Technology for Forest Products and Processes, vol. 3: 4, ss. 30-34.

He, J. , Engstrand, P. , Björkqvist, O. & Zhang, W. (2013). Techno-economic evaluation of a mechanical pulp mill with gasification. Nordic Pulp & Paper Research Journal, vol. 28: 3, ss. 349-357.  

Andersson, S. , Sandberg, C. & Engstrand, P. (2012). Comparison of mechanical pulps from two stage HC single disc and HC double disc - LC refining. Appita journal, vol. 65: 1, ss. 57-62.

Andersson, S. , Sandberg, C. & Engstrand, P. (2012). Effect of long fibre concentration on low consistency refining of mechanical pulp. Nordic Pulp & Paper Research Journal, vol. 27: 4, ss. 702-706.    

Hellström, L. , Carlberg, T. , Engstrand, P. , Gradin, P. & Gregersen, Ø. (2012). Evaluation Of Collimated Chipping Technology For Reducing Energy Consumption In Mechanical Pulping. Journal of Science & Technology for Forest Products and Processes, vol. 2: 3, ss. 6-9.

Gorski, D. , Johansson, L. & Engstrand, P. (2012). Refiner bleaching in a peroxide-based ATMP process compared with conventional bleaching. Holzforschung, vol. 66: 3, ss. 275-281.  

Fernando, D. , Muhic, D. , Engstrand, P. & Daniel, G. (2012). Surface and internal micro/ultrastructure of TMP fibres produced during high-intensity refining elucidate the development of pulp and paper properties. Holzforschung, vol. 66: 4, ss. 467-475.  

Andersson, S. , Sandberg, C. & Engstrand, P. (2012). The effect of rotor position on pulp properties in a two-zoned low consistency refiner. Nordic Pulp & Paper Research Journal, vol. 27: 3, ss. 525-530.    

Muhic, D. , Huhtanen, J. , Sundström, L. , Sandberg, C. , Ullmar, M. , Engstrand, P. & Vuorio, P. (2011). Energy efficiency in double disc refining. Influence of intensity by segment design. Nordic Pulp & Paper Research Journal, vol. 26: 3, ss. 224-231.    

Fernando, D. , Muhic, D. , Engstrand, P. & Daniel, G. (2011). Fundamental understanding of pulp property development under different thermomechanical pulp refining conditions as observed by a new Simons' staining method and SEM observation of the ultrastructure of fibre surfaces. Holzforschung, vol. 65: 6, ss. 777-786.  

Gorski, D. , Mörseburg, K. , Axelsson, P. & Engstrand, P. (2011). Peroxide-based ATMP refining of spruce : energy efficiency, fibre properties and pulp quality. Nordic Pulp & Paper Research Journal, vol. 26: 1, ss. 47-63.    

Hellström, L. , Gradin, P. , Engstrand, P. & Gregersen, Ø. (2011). Properties of wood chips for thermomechanical pulp (TMP) production as a function of spout angle. Holzforschung, vol. 65: 6, ss. 805-809.  

Björkqvist, O. , Engstrand, P. , Htun, M. & Norgren, M. (2010). FORE – Ett nytt industrikombinat baserat på mekaniska massaprocesser. Svensk papperstidning, Nordisk cellulosa, : 2, ss. 24-25.  

Muhic, D. , Sundström, L. , Sandberg, C. , Ullmar, M. & Engstrand, P. (2010). Influence of temperature on energy efficiency in double disc chip refining. Nordic Pulp & Paper Research Journal, vol. 25: 4, ss. 420-427.  

Gorski, D. , Engstrand, P. , Hill, J. , Axelsson, P. & Johansson, L. (2010). Mg(OH)(2)-based hydrogen peroxide refiner bleaching: influence of extractives content in dilution water on pulp properties and energy efficiency. Appita journal, vol. 63: 3, ss. 218-225.

Sikter, D. , Karlström, A. , Sandberg, C. & Engstrand, P. (2008). Economic perspectives on quality control in TMP refining processes. Nordic Pulp & Paper Research Journal, vol. 23: 3, ss. 305-314.    

Rahman, H. , Engstrand, P. , Sandström, P. & Sjöstrand, B. (). Dewatering properties of low grammage handsheets softwood kraft pulps modified to minimize the need for refining. ,

Nelsson, E. , Sandberg, C. , Svensson-Rundlöf, E. , Muhic, D. , Engberg, B. A. & Engstrand, P. (). Substantially improved energy efficiency in mechanical pulping by new feeding segment design and low dosage sulfonation in mill scale. ,

Artiklar, forskningsöversikter

Osong, S. H. , Norgren, S. & Engstrand, P. (2016). Processing of wood-based microfibrillated cellulose and nanofibrillated cellulose, and applications relating to papermaking: a review. Cellulose (London), vol. 23: 1, ss. 93-123.  

Gorski, D. , Hill, J. , Engstrand, P. & Johansson, L. (2010). Review: Reduction of energy consumption in TMP refining through mechanical pre-treatment of wood chips. Nordic Pulp & Paper Research Journal, vol. 25: 2, ss. 156-161.    

Kapitel i böcker, del av antologier

Engstrand, P. & Johansson, B. (2009). Paper recycling. I Pulping Chemistry and Technology. Walter de Gruyter (Pulp and Paper Chemistry and Technology). S. 391-427.  

Konferensbidrag

Engstrand, P. (2016). Energy efficient mechanical pulping – summary of the Scandinavian industry initiative research work 2011 - 2015. I 2016 International Mechanical Pulping Conference, Jacksonville, Florida, USA  September 28-30, 2016 : SESSION 11: INDUSTRY INITIATIVE FOR ENERGY REDUCTION. Georgia 30092 USA : . S. 288--303.

Engstrand, P. , Gradin, P. , Hellström, L. , Carlberg, T. , Sandström, P. , Liden, J. , Söderberg, M. & Mats, E. (2016). Improved refining energy efficiency in thermo-mechanical pulping by means of collimated wood chipping – from solid mechanics to full scale evaluation. I PaperWeek Canada 2016 Conference February 1 to 5, 2016, Montreal : Technical Track Program.

Pettersson, G. , Norgren, S. , Höglund, H. & Engstrand, P. (2016). Low energy CTMP in strong and bulky paperboard plies. I Paper Conference and Trade Show, PaperCon 2016.. S. 556--564.

Nelsson, E. , Sandberg, C. , Svensson-Rundlöf, E. , Paulsson, M. , Granfeldt, T. , Engberg, B. & Engstrand, P. (2016). Mill scale production of TMP with double disk refining-The effects of a mild sulfonation, atmospheric preheating and refining temperatures. I International Mechanical Pulping Conference 2016, IMPC 2016.. S. 249--259.

Osong, S. H. , Norgren, S. , Pettersson, G. , Engstrand, P. , Còrdova, A. , Afewerki, S. & Alimohammadzadeh, R. (2016). Processing of nanocellulose and applications relating to CTMP-based paperboard and foams. I International Mechanical Pulping Conference 2016, IMPC 2016.. S. 87--93.

Karlström, A. & Engstrand, P. (2016). Refining efficiency for future CTIVIP and TMP systems co-optimizing fundamental wood material knowledge with a soft sensor control approach. I International Mechanical Pulping Conference 2016, IMPC 2016.. S. 304--316.

Sandberg, C. , Engstrand, P. & Berg, J. (2016). System Aspects on Low Consistency Refining of Mechanical Pulp. I TAPPI 2016 International Mechanical Pulping Conference (IMPC).. S. 485--495.

Henshaw Osong, S. , Dahlström, C. , Forsberg, S. , Andres, B. , Engstrand, P. , Norgren, S. , Olin, H. & Engström, A. (2015). Development of CTMP-based nanofibrillated Cellulose /nanographite composites for paper applications. Paper presented at the 9th International Fundamental Mechanical Pulp Research Seminar, 19-20May, Trondheim, Norway

Logenius, L. , Fjellström, H. & Engstrand, P. (2014). A sustainable analysis of sulphonic acid content in CTMP pulps. I International Mechanical Pulping Conference, IMPC 2014, part of PulPaper 2014 Conference. Espoo :

Walter, K. , Paulsson, M. & Engstrand, P. (2014). Acid hydrogen peroxide treatment of Norway spruce TMP : The effect of chelated ferric ions. I International Mechanical Pulping Conference, IMPC 2014.

He, J. , Engstrand, P. & Zhang, W. (2014). Bio-SNG production in a TMP Mill in comparison with BIGCC. I Energy Procedia.. S. 2894--2897.    

Karlström, A. , Hill, J. , Ferritsius, O. , Ferritsius, R. & Engstrand, P. (2014). Can we increase the proportion of electrical energy into fibre development in existing HC-refiners?. I International Mechanical Pulping Conference, IMPC 2014.

Osong, S. H. , Norgren, S. , Engstrand, P. , Lundberg, M. & Hansen, P. (2014). Development of nano-ligno-cellulose produced from mechanical pulp. I International Mechanical Pulping Conference, IMPC 2014.

Nelsson, E. , Sandberg, C. , Svensson-Rundlöf, E. , Muhic, D. , Rohdén, L. , A. Engberg, B. & Engstrand, P. (2014). Improved energy efficiency in thermomechanical pulping through co-optimixation of intensity by segment design and wood softening by sulfonation. I International mechanical pulping conference IMPC 2014.

Göransson, K. , Söderlind, U. , Henschel, T. , Engstrand, P. & Zhang, W. (2014). Internal tar/CH4 reforming in a biomass dual fluidised bed gasifier. I Proceeding of 4th International Symposium on Gasification and its Applications.

Berg, J. , Sandberg, C. , Engberg, B. & Engstrand, P. (2014). LC Refining Intensity In The Light Of Forces On Fibres. I International Mechanical Pulping Conference, IMPC 2014. Espoo :

Engberg, B. , Logenius, L. & Engstrand, P. (2014). Mechanical properties of sulphonated wood in relation to wing refiner properties. I International Mechanical Pulping Conference, IMPC 2014. Espoo :

Osong, S. H. , Engstrand, P. & Norgren, S. (2013). Mechanical Properties of high-yield pulp handsheets, as affected by blends of Nano-ligno-cellulose. Paper presented at the 2013 TAPPI International Conference on Nanotechnology for Renewable Materials, Stockholm, Sweden , 24-27 June 2013.

Logenius, L. , Engberg, B. A. , Fjellström, H. & Engstrand, P. (2013). Mechanical Properties of Sulphonated Spruce Wood. Paper presented at the 8th Fundamental mechanical pulping research seminar

Logenius, L. , Engberg, B. A. , Nelsson, E. & Engstrand, P. (2013). Mechanical testing methods for evaluation of the mechanical properties of sulphonated wood. Paper presented at the The 17th International Symposium on Wood, Fiber and Pulping Chemistry; Vancouver, Canada; 12-14 June 2013

Osong, S. H. , Norgren, S. & Engstrand, P. (2013). Nano-ligno-cellulose as strength enhancer in handsheets. Paper presented at the Marcus Wallenberg Prize (MWP 2013) - Young Researchers' Programme, Stockhom , Sweden, 23-24 Sept 2013.

Osong, S. H. , Norgren, S. & Engstrand, P. (2013). Nano-ligno-cellulose from mechanical pulp fines. Paper presented at the European Forest Products Doctoral Symposium 2013

Osong, S. H. , Engstrand, P. & Norgren, S. (2013). New Products based on Mechanical Pulps : Nano-ligno-cellulose (NLC). Paper presented at the 8th International Fundamental Mechanical Pulp Research Seminar, Åre, Sweden, 29-31 Jan, 2013.

Fjellström, H. , Engstrand, P. & Htun, M. (2013). On the relationship between charged groups, chemical environment and delamination during refining.. Paper presented at the 8th International Fundamental Mechanical Pulp Research Seminar (IFMPRS), Åre, Sweden, Jan 29-31, 2013

Osong, S. H. , Engstrand, P. & Norgren, S. (2012). A New Concept to Produce Nano-ligno-cellulose Materials by Means of High Pressure Homogenization. Paper presented at the 3rd International Cellulose Conference (ICC 2012), Oct 10-12, Sapporo, Japan.

Fjellström, H. , Engstrand, P. & Htun, M. (2012). Aspects of fibre wall swelling in high-yield pulp.. I PROCEEDING OF THE 4TH INTERNATIONAL CONFERENCE ON PULPING, PAPERMAKING AND BIOTECHNOLOGY (ICPPB '12), VOLS. I AND II.. S. 1183--1186.  

Hellström, L. , Carlberg, T. , Engstrand, P. , Gradin, P. & Gregersen, Ø. (2011). Collimated chipping technology in order to reduce the energy consumption in mechanical pulping. I Proceeding for International Mechanical Pulping Conference, Xi'an, P.R. of China.. S. 457--460.

Engstrand, P. (2011). FILLING THE GAP – IMPROVED ENERGYEFFICIENCY AND QUALITY STABILITYIN MECHANICAL PULP REFINING. Paper presented at the International Mechanical Pulping Conference 2011, Xian China

Logenius, L. , Engstrand, P. , Karlström, A. & Paulsson, M. (2011). Improved hydrogen peroxide bleaching of mechanical pulps using carbon dioxide in combination with sodium and magnesium based alkali sources. I 16th International Symposium on Wood, Fiber and Pulping Chemistry - Proceedings, ISWFPC.. S. 741--745.

Fjellström, H. , Engstrand, P. , Granfeldt, T. & Logenius, L. (2011). Predicting CTMP bleachability using wood shavings. I 16th International Symposium on Wood, Fiber and Pulping Chemistry - Proceedings, ISWFPC.. S. 613--616.    

Muhic, D. , Huhtanen, J. , Sundström, L. , Sandberg, C. , Ullmar, M. & Engstrand, P. (2010). Energy efficiency in double disc chip refining. Influence of intensity by segment design. I Proceedings of the 7th InternationalFundamental Mechanical Pulp Research Seminar, Nanjing, China (2010).. S. 103--111.

Hellström, L. & Engstrand, P. (2010). The effect on the energy consumption in mechanical pulping of different wood chipping conditions. I Proceedings of 7th International Seminar of Fundamental Mechanical Pulp Research (IFMPRS 2010).. S. 124--126.

Björkqvist, O. , Engstrand, P. & Fridén, H. (2009). Concepts of Steam Recovery from LC-Refining by Increase Temperature. I Proceedings - 2009 International Mechanical Pulping Conference, IMPC 2009.. S. 190--194.  

Muhic, D. , Sundström, L. , Nilsson, L. , Sandberg, C. , Ullmar, M. , Backlund, U. & Engstrand, P. (2009). Influence of temperature on energy efficiency in double disc chip refining. I Proceedings - 2009 International Mechanical Pulping Conference, IMPC 2009.. S. 344--347.

Nordin, L. , O'Nils, M. , Engstrand, P. , Bäck, R. , Ferritsius, O. & Sandberg, C. (2009). Measurement and prediction of dewatering characteristics for mechanical pulps using optical fibre analyzers. I Proceedings - 2009 International Mechanical Pulping Conference, IMPC 2009.. S. 309--316.

Gorski, D. , Engstrand, P. , Hill, J. & Johansson, L. (2009). Review: Reduction of energy consumption in refining through mechanical pretreatment of wood chips. I Proceedings - 2009 International Mechanical Pulping Conference, IMPC 2009.. S. 17--21.

Nordin, L. , O'Nils, M. , Engstrand, P. & Sundvall, Ö. (2008). Characterization and classification of dewatering measurement techniques for mechanical pulps. I Proceedings of the PRS, Finland, May 2008..

Nordin, L. , O´Nils, M. , Engstrand, P. & Sundvall, Ö. (2008). Towards relevant dewatering measurement techniques : Caracterisation and classification of dewatering measurement techniques for mechanical pulps. I FMPRS May 2008.

Sikter, D. , Karlström, A. , Engstrand, P. & Czmaidalka, J. (2007). Using the refining zone temperature profile for quality control. I International Mechanical Pulping Conference 2007, TAPPI. Atlanta, GA : . S. 894--902.

Möller, K. , Nikko, A. & Engstrand, P. (2002). The effect of multiple recycling on newsprint quality : a large-scale pilot study, performed 1992 -1996. I PTS-CTP Symposium on Deinking Technology, 22-24 April 2002 Munich Germany.

Manuskript

Nordin, L. , O'Nils, M. , Engstrand, P. , Bäck, R. , Ferritsius, O. , Ferritsius, R. , Sandberg, C. & Sundvall, Ö. Analysis of the quality of optical fibre and fines measurement for prediction of dewatering characteristics for mechanical pulps.

Patent

Engstrand, P. , Sandberg, C. & Nilsson, C. F. (2007). Method for selective removal of ray cells from cellulose pulp US 20070023329 A1 .

Engstrand, P. , Sandberg, C. & Nilsson, C. F. (2006). A method for selective removal of ray cells from cellulose pulp EP 1625253 A1 .

Engstrand, P. , Sandberg, C. , Jonsson, J. , Starck, G. , Wahlgren, M. & Wancke-Ståhl, C. (2005). Method of producing bleached thermomechanical pulp (tmp) or bleached chemithermomechanical pulp (ctmp) EP 1407073 B1 .

Engstrand, P. , Lindgren, J. & Agnemo, R. (2004). A method for increasing the stability of fluorescent whitening agent WO 2004050994 A1 .

Sandberg, C. , Engstrand, P. & Nilsson, C. F. (2004). A method for selective removal of ray cells from cellulose pulp CA 2524177 A1 .

Engstrand, P. , Sandberg, C. & Nilsson, C. F. (2004). A method for selective removal of ray cells from cellulose pulp WO 2004097106 A1 .

Engstrand, P. , Sandberg, C. , Jonsson, J. , Wancke-Ståhl, C. , Starck, G. & Wahlgren, M. (2004). Method of producing bleached thermomechanical pulp (tmp) or bleached chemithermomechanical pulp (ctmp) .

Engstrand, P. , Sandberg, C. , Wancke-Ståhl, C. , Jonsson, J. , Starck, G. & Wahlgren, M. (2004). Method of producing bleached thermomechanical pulp (tmp) or bleached chemithermomechanical pulp (ctmp) US 20040231811 A1 .

Engstrand, P. , Sandberg, C. , Jonsson, J. , Wancke-Ståhl, C. , Starck, G. & Wahlgren, M. (2003). Method of producing bleached thermomechanical pulp (tmp) or bleached chemithermomechanical pulp (ctmp) CA 2451155 A1 .

Engstrand, P. , Sandberg, C. , Jonsson, J. , Starck, G. , Wahlgren, M. & Wancke-Ståhl, C. (2003). Method of producing bleached thermomechanical pulp (tmp) or bleached chemithermomechanical pulp (ctmp) WO 2003000982 A1 .

Engstrand, P. & Karlström, A. (1994). System for continuously measuring pressure and temperature in the beating zone of refiners WO 1996014156 A1 .

Engstrand, P. & Karlström, A. (1994). System zur kontinuierlichen messung von druck und temperatur im zerkleinerungsbereich eines refinders .

Engstrand, P. , Pettersson, R. , Htun, M. , Hammar, L. Å. & Svensson, B. (1993). Method of making mechanical and chemi-mechanical papermaking pulp CA 1320067 C .

Engstrand, P. , Pettersson, R. , Htun, M. , Hammar, L. Å. & Svensson, B. (1993). Method of making mechanical and chemi-mechanical papermaking pulp EP 0413736 B1 .

Engstrand, P. , Hammar, L. Å. , Sjögren, B. , Svensson, B. & Htun, M. (1992). A method of producing cellulosic pulp EP 0500674 A1 .

Engstrand, P. , Hammar, L. Å. , Sjögren, B. , Svensson, B. & Htun, M. (1991). A method of producing cellulosic pulp WO 1991006700 A1 .

Engstrand, P. , Pettersson, R. , Hammar, L. Å. , Htun, M. & Svensson, B. (1991). Method of making mechanical and chemi-mechanical papermaking pulp. EP 0413736 A1 .

Engstrand, P. , Hammar, L. Å. , Htun, M. & Pettersson, R. (1991). Method of reducing the energy consumption at the refining of cellulose containing material US 5007985 A .

Engstrand, P. , Hammar, L. Å. , Htun, M. & Pettersson, R. (1991). Method of reducing the energy consumption at the refining of cellulose containing material US 5007985 A .

Engstrand, P. , Htun, M. , Pettersson, R. & Hammar, L. Å. (1991). Method of reducing the energy consumption at the refining of cellulose-containing material CA 1281856 C .

Engstrand, P. , Hammar, L. Å. , Htun, M. , Pettersson, R. & Svensson, B. (1989). Method of making mechanical and chemi-mechanical papermaking pulp WO 1989010998 A1 .

Engstrand, P. , Hammar, L. Å. , Htun, M. & Pettersson, R. (1989). Method of reducing the energy consumption at the refining of cellulose-containing material EP 0302075 A1 .

Engstrand, P. , Htun, M. , Hammar, L. Å. & Pettersson, R. (1987). Method of reducing the energy consumption at the refining of cellulose-containing material WO 1987006280 A1 .

Rapporter

Engstrand, P. O. , Ferritsius, O. , Björkqvist, O. , Johansson, L. , Johansson, Ö. , Daniel, G. , Ferritsius, R. , Karlström, A. & et al. (2015). Mekmassainitiativet för energieffektivitet, e2mp-i. Sundsvall : Mittuniversitetet (Rapportserie FSCN 2015:58).

Engstrand, P. O. & Engberg, B. A. (2014). Filling the Gap - Final Report. Sundsvall : (Rapportserie FSCN 2014:57).

Björkqvist, O. , Engstrand, P. & Fridén, H. (2008). Energiåtervinning vid LC-raffinering – Förstudie. Stockholm : Värmeforsk (Värmeforsk skogsindustriella programmet S5-622).