43. Quantitative Structural Analysis of Gasified Coal Char Using HRTEM Technique

抄録

The transformation in the crystallinity of Pocahontas no. 3 coal char samples (POC) due to high temperature gasification have been studied using HRTEM image analysis technique. To understand the structural changes quantitatively, we developed a new algorithm which gives graphene layer size, interlayer spacing, the number of layers per stack and their distributions. As the conversion increases, the structure becomes more crystalline. The gasificaton profile of the coal char sample has been discussed in terms of the ratio of relative number of carbon atoms in different stacks.