Particle size and shape distributions of hammer milled pine

Westover, Tyler Lott¹  Matthews, Austin Colter¹  Williams, Christopher Luke¹  Ryan, John Chadron Benjamin¹ 

[1] Idaho National Lab. (INL), Idaho Falls, ID (United States)

关键词: particle size/shape;   

DOI  :  10.2172/1236828
RP-ID  :  INL/EXT--15-35033
PID  :  OSTI ID: 1236828

学科分类：材料科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Particle size and shape distributions impact particle heating rates and diffusion of volatized gases out of particles during fast pyrolysis conversion, and consequently must be modeled accurately in order for computational pyrolysis models to produce reliable results for bulk solid materials. For this milestone, lodge pole pine chips were ground using a Thomas-Wiley #4 mill using two screen sizes in order to produce two representative materials that are suitable for fast pyrolysis. For the first material, a 6 mm screen was employed in the mill and for the second material, a 3 mm screen was employed in the mill. Both materials were subjected to RoTap sieve analysis, and the distributions of the particle sizes and shapes were determined using digital image analysis. The results of the physical analysis will be fed into computational pyrolysis simulations to create models of materials with realistic particle size and shape distributions. This milestone was met on schedule.