Sökning: "ZnCl2"

Hittade 2 uppsatser innehållade ordet ZnCl2.

1. 1. Rheological study of cellulose dissolved in aqueous ZnCl2 : Regenerated cellulosic fibres for textile applications

   Master-uppsats, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Författare :Louise Ulfstad; [2013]
   Nyckelord :Rheology; cellulose dissolution; ZnCl2;

   Sammanfattning : The most known regenerated cellulosic fiber is viscose, produced in a wet spinning process, but due to cost and environmental issues other processes have been developed. Lyocell fibers, produced in air-gap spinning, have superior dry and wet strenght and a lower environmental impact compared to viscose. LÄS MER

3. 2. Evaluation of alkali- impregnated honeycomb catalysts for NOx reduction in the SCR-process

   Uppsats för yrkesexamina på grundnivå, Institutionen för teknik och design

   Författare :Sofia Johansson; [2006]
   Nyckelord :SCR; KCl; K2SO4; ZnCl2; wet impregnation; catalyst; deactivating; activity;

   Sammanfattning : Samples of SCR catalysts were impregnated with the following alkali salts; KCl, K2SO4 and ZnCl2 at two different concentrations in a wet impregnation method. The activities of the six samples were measured in a test reactor and at different temperatures between 250-350 ºC. Compared to fresh catalyst, the impregnated samples all had lower activity. LÄS MER