Sökning: "Mechanical pulping"
Visar resultat 1 - 5 av 8 uppsatser innehållade orden Mechanical pulping.
1. Mapping and analysing the current waste paper recycling system in Europe for a new fiber-based packaging material
Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknikSammanfattning : Fiber-based packaging has emerged as an alternative to plastic packaging, driven by concerns regarding environmental impact and excessive usage of plastic. In response to market trends favouring circular packaging solutions, Stora Enso is preparing to introduce Papira, an innovative fiber-based cushioning packaging material, in Europe. LÄS MER
2. Optimalt körsätt för pluggskruv : Identifiering av orsaker till stopp i pluggskruv samt framtagning av parametrar för optimalt körsätt
Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Industriell teknikSammanfattning : Hallsta Paper Mill, which is a part of Holmen Paper, uses the Thermo Mechanical Pulping process to produce paper pulp. One of their process steps is a plug screw feeder that transport and compresses chips. LÄS MER
3. The Influence of pH, Temperature and Number of Wash Steps on the Washing Efficiency of CTMP Pulp
Master-uppsats, Karlstads universitet/Avdelningen för kemiteknikSammanfattning : In this report, the washing efficiency of chemi-thermomechanical pulp (CTMP) from Norway spruce (Picea abies) was investigated when adjusting the temperature and pH during washing as well as implementing different number of wash steps. Concurrent effects of having a high pH and temperature were also examined. LÄS MER
4. Barkpressning : Underlag till körstrategi på Kvarnsvedens Pappersbruk
Kandidat-uppsats, Högskolan Dalarna/EnergiteknikSammanfattning : På Kvarnsvedens Pappersbruk används gran som vedråvara för mekanisk massatillverkning. Bark är en biprodukt och används som bränsle vid ångproduktion. Innan barken eldas behöver den avvattnas för att öka det effektiva värmevärdet. Detta sker i roterande barkpressar från Saalasti. LÄS MER
5. Textile paper as a circular material
Master-uppsats, KTH/Industriell ekologiSammanfattning : Increasing resource efficiency by utilising secondary raw material is one of the key characteristics of a circular economy. Textile dust fibre, a waste generated from textile mechanical recycling has the prospect to be utilised as secondary raw material for producing novel material: textile paper suitable for packaging and other applications. LÄS MER