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Journal articles
Impulse drying: status of the pilot-scale research program, TAPPI JOURNAL, September 1999, Vol. 82(9)
Impulse drying: status of the pilot-scale research program, TAPPI JOURNAL, September 1999, Vol. 82(9)
Journal articles
Pulp refiner trial tips, TAPPI JOURNAL, September 1999, Vol. 82(9)
Pulp refiner trial tips, TAPPI JOURNAL, September 1999, Vol. 82(9)
Journal articles
Magazine articles
Advantages of lean duplex stainless steels in the pulp and paper industry, TAPPI Journal April 2023
ABSTRACT: The performance of lean duplex stainless steels has been utilized by the pulp and paper industry since their introduction to the market almost 20 years ago. Experience has shown that this group of stainless steels has exceptional performance in, for example, alkaline environments towards typical deterioration mechanisms, i.e., uniform corrosion and stress corrosion cracking. The chemistry of the “lean” duplex steels is designed so that the content of volatile and expensive elements like nickel and molybdenum can be reduced to an absolute minimum without sacrificing the technical performance. This reduces the raw material cost and most importantly provides predictability of the steel price, which is often challenging with conventional austenitic and duplex stainless steels.Thanks to a dual phase microstructure and high nitrogen content, lean duplex steels have at least two times higher strength compared to standard austenitic stainless steels. This is often a preferred feature in pulp and paper construction, as it enables lighter structures and less material to be utilized. Today, lean duplex steels are widely available in various dimensions, from thin cold rolled sheets up to thick hot rolled plates. Lean duplex steels are also fully recyclable after the decommissioning stage of the equipment, thereby contributing to the circular economy.
Journal articles
Dimensioning a recovery boiler furnace using mathematical optimization 15FEB119
Dimensioning a recovery boiler furnace using mathematical optimization, TAPPI JOURNAL February 2015
Journal articles
Improved steady-state models for chlorine dioxide delignification sequences that include washer carryover effects 15-Feb-93
Improved steady-state models for chlorine dioxide delignification sequences that include washer carryover effects, TAPPI JOURNAL February 2015
Journal articles
Editorial: 2014 International Conferences • Part 2: Focus on the Liquor Cycle, TAPPI JOURNAL July 2015
Editorial: 2014 International Conferences • Part 2: Focus on the Liquor Cycle, TAPPI JOURNAL July 2015
Journal articles
Flexible pretreatment technology supports production of biobased co-products at pulp and paper mills, TAPPI JOURNAL 2015 March - 15MAR179
Flexible pretreatment technology supports production of biobased co-products at pulp and paper mills, TAPPI JOURNAL March 2015
Journal articles
Hydrothermal refining of biomass â?? an overview and future perspectives, TAPPI JOURNAL 2015 March - 15MAR195
Hydrothermal refining of biomass — an overview and future perspectives, TAPPI JOURNAL March 2015
Journal articles
Magazine articles
The Future of Sustainability at Pulp and Paper Mills, Paper360º November/December 2021
The Future of Sustainability at Pulp and Paper Mills, Paper360º November/December 2021
Journal articles
Magazine articles
Commercially relevant water vapor barrier properties of high amylose starch acetates: Fact or fiction?, TAPPI Journal September 2021
ABSTRACT: Starches have recently regained attention as ecofriendly barrier materials due to the increased demand for sustainable packaging. They are easily processable by conventional plastics processing equipment and have been utilized for oil and grease barrier applications. While starches have excellent oxygen barrier properties and decent water barrier properties at low relative humidity (RH), they are moisture sensitive, as demonstrated by the deterioration of the barrier properties at higher RH values. Starch esters are chemically modified starches where the hydroxyl group of the starch has been substituted by other moieties such as acetates. This imparts hydrophobicity to starches and has been claimed as a good way of retaining water vapor barrier properties of starches, even at high RH conditions. We studied the water vapor barrier properties of one class of starch esters, i.e., high amylose starch acetates that were assumed to have good water vapor barrier properties. Our investigations found that with a high degree of substitution of hydroxyl groups, the modified starches did indeed show improvements in water vapor response as compared to pure high amylose starch films; however, the barrier properties were orders of magnitude lower than commercially used water vapor barriers like polyethylene. Even though these materials had improved water vapor barrier response, high amylose starch acetates are likely unsuitable as water vapor barriers by themselves, as implied by previous literature studies and patents.