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Conference papers
THE SOLUBILITY OF CALCIUM CARBONATE IN GREEN LIQUOR HANDLING SYSTEMS, 2018 PEERS
THE SOLUBILITY OF CALCIUM CARBONATE IN GREEN LIQUOR HANDLING SYSTEMS, 2018 PEERS
Conference papers
Most Typical Failures in Kraft Recovery Boilers • A Statistical Approach, 2018 PEERS
Most Typical Failures in Kraft Recovery Boilers • A Statistical Approach, 2018 PEERS
Journal articles
Magazine articles
Are You in the ´Circle of Despair’?, Paper360º September/October
Are You in the ´Circle of Despair’?, Paper360º September/October
Journal articles
Magazine articles
Progress in foam forming technology, TAPPI JOURNAL August 2019
ABSTRACT: This paper summarizes recent developments in foam forming that were mainly carried out in pilot scale. In addition to improving the efficiency of existing processes and allowing better uniformity in material, a wide variety of raw materials can be utilized in foam forming. The focus of this paper is thin webs—papers, boards and foam-laid nonwovens, along with the pilot scale results obtained at VTT in Finland. For paper and board grades, the most direct advantage of foam forming is the potential to produce very uniform webs from longer and coarser fibers and obtain material savings through that. Another main point is increased solids content after a wet press, which may lead to significant energy savings in thermal drying. Finally, the potential to introduce “difficult” raw materials like long synthetic or manmade fibers into a papermaking process enables the manufacturing of novel products in an existing production line. This paper also briefly discusses other interesting foam-based applications, including insulation and absorbing materials, foam-laid nonwovens, and materials for replacing plastics.
Journal articles
Magazine articles
Optimazation of coating with water-based barriers, TAPPI Journal February 2019
Optimazation of coating with water-based barriers, TAPPI Journal February 2019
Journal articles
Magazine articles
Kraft pulp bleaching with a P-stage catalyzed by both bicarbonate and TAED, TAPPI Journal July 2019
ABSTRACT: Peroxide bleaching of softwood and hardwood (eucalypt) kraft pulps was performed in solutions of sodium bicarbonate (NaHCO3), sodium carbonate (Na2CO3), and sodium hydroxide (NaOH). The conventional P stage (hydrogen peroxide + sodium hydroxide; H2O2 + NaOH) was the most effective brightening system without an additional activator. However, peroxide activation by bicarbonate anion (HCO3•) was obvious in all cases where NaHCO3 or Na2CO3 was used. When N,N,N’,N’-tetraacetylethylenediamine (TAED) was added to the bleaching sys-tem, Na2CO3 as the alkali source afforded equal or slightly higher bleached brightness compared to NaOH usage for both the softwood and hardwood pulps. This outcome is attributed to simultaneous peroxide activation by HCO3• and TAED. When applied to the eucalypt pulp, the H2O2/Na2CO3/TAED bleaching system also decreased the bright-ness loss due to thermal reversion.
Conference papers
Paper Dryer Conversion from Rotary to Stationary Syphons, 19PaperCon
Paper Dryer Conversion from Rotary to Stationary Syphons, 19PaperCon
Conference papers
To Steel or Not to Steel • Steel Dryer Cans, 19PaperCon
To Steel or Not to Steel • Steel Dryer Cans, 19PaperCon
Conference papers
Substituting pulp for filler is increasingly attractive for papermakers, 19PaperCon
Substituting pulp for filler is increasingly attractive for papermakers, 19PaperCon
Conference papers
Transverse Viscoelastic Properties Of Cellulosic Fibers Investigated By Atomic Force Microscopy, 19PaperCon
Transverse Viscoelastic Properties Of Cellulosic Fibers Investigated By Atomic Force Microscopy, 19PaperCon