Particle Morphology Analysis of Biomass Material Based on Improved Image Processing Method

International Journal of Analytical Chemistry - Tập 2017 - Trang 1-9 - 2017
Zhaolin Lu1, Xiaojuan Hu2, Yao Lu1
1Advanced Analysis and Computation Center, China University of Mining and Technology, Xuzhou, 221116, China
2School of Sciences, China University of Mining and Technology, Xuzhou 221116, China

Tóm tắt

Particle morphology, including size and shape, is an important factor that significantly influences the physical and chemical properties of biomass material. Based on image processing technology, a method was developed to process sample images, measure particle dimensions, and analyse the particle size and shape distributions of knife-milled wheat straw, which had been preclassified into five nominal size groups using mechanical sieving approach. Considering the great variation of particle size from micrometer to millimeter, the powders greater than 250 μm were photographed by a flatbed scanner without zoom function, and the others were photographed using a scanning electron microscopy (SEM) with high-image resolution. Actual imaging tests confirmed the excellent effect of backscattered electron (BSE) imaging mode of SEM. Particle aggregation is an important factor that affects the recognition accuracy of the image processing method. In sample preparation, the singulated arrangement and ultrasonic dispersion methods were used to separate powders into particles that were larger and smaller than the nominal size of 250 μm. In addition, an image segmentation algorithm based on particle geometrical information was proposed to recognise the finer clustered powders. Experimental results demonstrated that the improved image processing method was suitable to analyse the particle size and shape distributions of ground biomass materials and solve the size inconsistencies in sieving analysis.

Từ khóa


Tài liệu tham khảo

10.1016/j.fuproc.2010.01.018

10.1016/j.fuel.2006.12.024

10.1016/j.fuel.2016.05.077

10.1021/ef501898h

10.1016/j.fuproc.2013.04.001

10.1016/j.fuel.2012.12.093

10.1002/bit.21132

10.1016/j.powtec.2014.02.049

10.1016/j.fuel.2008.10.023

10.1016/j.jaap.2011.06.004

10.1016/j.fuel.2006.06.022

10.1016/j.biortech.2008.05.027

10.1016/j.fuproc.2013.02.024

10.1016/s0960-8524(01)00120-1

10.1016/j.biortech.2009.02.072

10.1016/j.fuproc.2014.06.016

10.1016/s0378-3820(02)00008-5

10.1016/j.fuel.2010.06.043

2003

2006, 1

10.1016/j.compag.2009.01.005

10.1016/j.compag.2008.02.007

10.1016/j.biosystemseng.2006.06.001

10.1016/j.powtec.2012.06.027

10.1016/j.jfoodeng.2006.12.020

2003, American Society of Agricultural and Biological Engineers, 1

10.1016/j.fuel.2011.11.041

10.2486/indhealth.ms1204

10.1016/j.atmosenv.2005.07.073

10.1016/j.biosystemseng.2012.11.007

10.1016/j.fuel.2013.08.011

10.1016/j.biombioe.2003.08.002

10.1016/j.biortech.2012.10.122

10.1007/s12649-014-9308-5

10.1016/s0098-3004(01)00038-3

10.1016/j.powtec.2014.07.014

10.1016/j.powtec.2009.07.024

Thông tin
Thông tin xuất bản

International Journal of Analytical Chemistry

Tập 2017

1-9

Thông tin tác giả