0
Research Papers: Energy From Biomass

Study on Pore Structure of Seaweed Particles After Combustion

[+] Author and Article Information
Shannan Xu

South China Sea Fisheries Research Institute,
Chinese Academy of Fishery Sciences,
Guangzhou 510300, China;
Key Laboratory of South China Sea Fishery
Resources Exploitation and Utilization,
Ministry of Agriculture,
Guangzhou 510300, China;
Key Laboratory of Fishery
Ecology and Environment,
Guangdong Province,
Guangzhou 510300, China
e-mail: xushannan@scsfri.ac.cn

Shuang Wang

School of Energy and
Power Engineering,
Jiangsu University,
Jiangsu 212013, China
e-mail: alexjuven@ujs.edu.cn

Zhe Zhang

South China Sea Fisheries Research Institute,
Chinese Academy of Fishery Sciences,
Guangzhou 510300, China;
Key Laboratory of South China Sea Fishery
Resources Exploitation and Utilization,
Ministry of Agriculture,
Guangzhou 510300, China;
Key Laboratory of Fishery
Ecology and Environment,
Guangdong Province,
Guangzhou 510300, China
e-mail: zhangzhe@scsfri.ac.cn

Chunhou Li

South China Sea Fisheries Research Institute,
Chinese Academy of Fishery Sciences,
Guangzhou 510300, China;
Key Laboratory of South China Sea Fishery
Resources Exploitation and Utilization,
Ministry of Agriculture,
Guangzhou 510300, China;
Key Laboratory of Fishery
Ecology and Environment,
Guangdong Province,
Guangzhou 510300, China
e-mail: scslch@vip.163.com

Xiumin Jiang

Institute of Thermal Engineering,
Shanghai Jiao Tong University,
Minhang District, Shanghai 200240, China
e-mail: xiuminjiang@sjtu.edu.cn

1Corresponding author.

Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received June 15, 2015; final manuscript received January 12, 2016; published online February 22, 2016. Assoc. Editor: Yiannis Levendis.

J. Energy Resour. Technol 138(5), 051801 (Feb 22, 2016) (7 pages) Paper No: JERT-15-1213; doi: 10.1115/1.4032543 History: Received June 15, 2015; Revised January 12, 2016

In this work, the particles of two seaweeds, Enteromorpha clathrata (E. clathrata) (EN) and Sargassum natans (S. natans), were combusted in a fluidized bed. It was found that while combustion of EN particles was stable, there was a substantial slagging period during the combustion of S. natans particles. Seaweed and its bottom ash samples were collected, and their pore structures were determined with both mercury intrusion method and N2 adsorption–desorption method. The structural analysis revealed that the number of porosity, pore volume, and specific surface area was all increased and the internal pore in ash samples was expanded after combustion. Fractal analysis showed that while the surface of original seaweed was smooth, it became irregular and rough after combustion. This study has suggested that the ash of seaweeds with porous structure can be valuable for comprehensive utilization.

FIGURES IN THIS ARTICLE
<>
Copyright © 2016 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Fig. 1

Schematic diagram of experimental system 1—compressors, 2—manometers, 3—flow meter, 4—pressure regulator, 5—voltage regulator, 6—distributor, 7—solids drain, 8—air heater, 9—feeding entrance, 10—temperature controller, 11—riser, 12—cyclone, 13—heat exchanger, 14—bag house filters, 15—valve, 16—vacuum pump, 17—chimney, 18—gas measuring point, 19—temperature measuring point 1, 20—temperature measuring point 2, and 21—temperature measuring point 3

Grahic Jump Location
Fig. 2

Fluidized bed combustor system for fluid combustion experiment (a) fluidized bed and (b) feeder system

Grahic Jump Location
Fig. 3

Seaweed ash and agglomerate slag after combustion (a) EN bottom ash, (b) SA agglomerate bottom slag, and (c) SA agglomerate slag on furnace wall

Grahic Jump Location
Fig. 4

Pore size distributions of EN and EN ashes

Grahic Jump Location
Fig. 5

N2 adsorption–desorption isotherms of EN and EN ashes: left—original sample and right–ash sample

Grahic Jump Location
Fig. 6

Pore size distributions of EN and EN ashes

Grahic Jump Location
Fig. 7

SEM micrographs of EN and EN ashes (magnification: ×10,000): left—origin and right—ash

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In