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Full-Text Articles in Forest Sciences
Air Pre-Heat System Optimization For Flash Dryers, Sophia Louden
Air Pre-Heat System Optimization For Flash Dryers, Sophia Louden
Honors Theses
Primient, a leading producer of food and industrial ingredients made from plant-based, renewable sources is the industrial sponsor for this project. The company is currently using Plate & Frame Heat exchangers to heat up a 40% by-weight glycol and water solution that is then used to preheat the incoming ambient air. Glycol is being added to reduce the risks of freezing in the system during the winter season. It is important to highlight that this fact affects the heat transfer properties of the liquid overall. Since air heating is a highly energy-demanding process, an outlet stream of hot water produced …
The Effect Of Using Hemicellulase And Oxidase Successively As Pre-Bleaching Agents For Hardwood Kraft Pulp, Bryan R. Moore
The Effect Of Using Hemicellulase And Oxidase Successively As Pre-Bleaching Agents For Hardwood Kraft Pulp, Bryan R. Moore
Honors Theses
Environmental concerns have applied pressure on the paper industry to change many erstwhile processes that have traditionally remained unchallenged. One process in particular is pulp bleaching. Elemental chlorine, while effective in bleaching pulp and low in capital cost, is a major environmental threat because of the toxic chlorinated compounds and other dioxins that are generated in mill effluents. With increasing technology and demand, there has been much research devoted to the development of alternate bleaching sequences, whether Elemental Chlorine Free (ECF), which can use Chlorine Dioxide (ClO2), or Totally Chlorine Free (TC). THe wide acceptance of these bleaching …
The Effect Of A Sheet Tension Controller On The Productivity Of A Papermachine, Timothy J. Rummel
The Effect Of A Sheet Tension Controller On The Productivity Of A Papermachine, Timothy J. Rummel
Honors Theses
This thesis proposal outlines a project in which the efficiency of a papermachine is increased by controlling the tension through the dryer section. The controlled tension is expected to reduce wet end breaks and to decrease the steam demand of the dryer section. The experiment will be run by placing a laser positioning sensor above the open draw of a papermachine and monitoring the position of the draw until an optimum height of the paper has been determined. Then an automatic drive controller will be connected to the wet end drive to maintain a constant draw height and the machine …
The Feasibility Of Foamed Ink Use In Flexographic Printing, Anthony Malerich
The Feasibility Of Foamed Ink Use In Flexographic Printing, Anthony Malerich
Honors Theses
Flexographic and rotogravure printing are two of the three predominant printing processes; the other is offset lithography. They are very similar in that they each transfer a very fluid, low viscosity ink from an ink fountain to an engraved cylinder. Foamed ink is a completely water based liquid ink that is foamed by the introduction of air at press side, and presents numerous advantages over conventional organic solvent based and water based inks. The prime advantage is that foamed inks are a completely aqueous, environmentally safe system. Another benefit is the cost savings associated with foamed ink. Ink consumption is …