Influence of the Value of Limit Densification Stress on the Quality of the Pellets During the Agglomeration Process of CO2

The article presents the results of static compression tests of concentrated crystallized carbon dioxide. Included results of test describe relation between the agglomerating stress and density of compressed dry ice. Quality of dry ice pellet is determined by value of density. Results of research allow to determine the effective value of stress during the agglomeration process. Due to the fact that the crystallized carbon dioxide has temperature equal minus 78.5 °C and sublimates under normal conditions of the test was proposed the methodology which allowing performance the tests. In first stage of research has been determined value of bulk density of dry ice snow. This value is initial boundary condition of relation between compression stress and density of agglomerated material. In second stage of the research has been investigated influence of compression stress on to density variation of the agglomerated dry ice. Results of both stage of research allow for formulation of function which approximate relation between density of agglomerated dry ice and compression stress. Results will allow for formulation of assumptions, which will be one of main point to create a more efficient machine for agglomeration process of solidified carbon dioxide.