Search for dissertations about: "ACTIVATION-ENERGIES"
Showing result 1 - 5 of 62 swedish dissertations containing the word ACTIVATION-ENERGIES.
-
1. The initial phase of the sodium bisulfite pulping of softwood dissolving pulp
Abstract : The sulfite pulping process is today practised in only a small number of pulp mills around the globe and the number of sulfite mills that use sodium as the base (cation) is less than five. However, due to the increasing interest in the wood based biorefinery concept, the benefits of sulfite pulping and especially the sodium based variety, has recently gained a lot of interest. READ MORE
-
2. The initial phase of sodium sulfite pulping of softwood : A comparison of different pulping options
Abstract : Single stage and two-stage sodium sulfite cooking were carried out on either spruce, pine or pure pine heartwood chips to investigate the influence of several process parameters on the initial phase of such a cook down to about 60 % pulp yield. The cooking experiments were carried out in the laboratory with either a lab-prepared or a mill-prepared cooking acid and the temperature and time were varied. READ MORE
-
3. Primary reactions in crystalline salts of tartaric acids, α-amino acids and monochloroacetic acid studied by pulse radiolysis and ESR spectroscopy
Abstract : Primary reactions in irradiated single crystals of salts of tartaric acids, a-amino acids and monochloroacetic acid have been studied by pulse radiolysis and ESR spectroscopy. The primary products are formed by the loss or capture of an electron and are referred to as oxidation and reduction products. READ MORE
-
4. Fundamental Study of two Selected Tropical Biomasses for Energy : coconut and cashew nut shells
Abstract : Cashew nut and coconut shells are two potential renewable and environmentally friendly energy sources that are commonly found as agro-industrial wastes in tropical countries. Despite this fact, they are not yet widely studied as such. READ MORE
-
5. Atomistic studies of nano-structural mechanical behavior and point defects
Abstract : The content of this thesis consists of two parts. For the first part, size and crystallographic orientational influence on the elastic properties of bcc nanowires and films have been studied through static molecular simulations. In order to explicitly account for surface effects, the concept of surface free energy has been employed. READ MORE