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dc.contributor.advisor Zygourakis, Kyriacos
dc.creatorBoissiere, Francois Patrice
dc.date.accessioned 2009-06-04T00:08:36Z
dc.date.available 2009-06-04T00:08:36Z
dc.date.issued 1993
dc.identifier.citation Boissiere, Francois Patrice. "Influence of pyrolysis conditions on macropore structure of char particles." (1993) Master’s Thesis, Rice University. https://hdl.handle.net/1911/13694.
dc.identifier.urihttps://hdl.handle.net/1911/13694
dc.description.abstract A systematic analysis of the structure of char particles produced from an Illinois #6 coal was carried out. Coal particles were pyrolyzed in a hot-stage reactor under inert (N$\sb2$) and reactive (5% O$\sb2$ / 95% N$\sb2$) atmospheres at various heating rates (0.1, 1 and 10$\sp\circ$C/s) and final heat treatment temperatures (500 and 700$\sp\circ$C). Image analysis procedures were used to measure the size and macroporosity of the particles, and the surface area and size distribution of the macropores. High heating rates and the addition of oxygen resulted in larger particle swelling and increased the macroporosity, the surface area and the fraction of large macropores with thin walls. Heat treatment temperatures had smaller effects on char particle structure. Our data confirm the strong effects of pyrolysis conditions on char reactivity during combustion in the diffusion-limited regime. They also provide the necessary parameters for char combustion models.
dc.format.extent 110 p.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subjectChemical engineering
dc.title Influence of pyrolysis conditions on macropore structure of char particles
dc.type Thesis
dc.type.material Text
thesis.degree.department Chemical Engineering
thesis.degree.discipline Engineering
thesis.degree.grantor Rice University
thesis.degree.level Masters
thesis.degree.name Master of Science
dc.identifier.callno Thesis Ch.E. 1993 Boissiere


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