Preliminary Feasibility Study of the Biomass Vacuum Pyrolysis Process

Roy, Christian; Caumia, B. De; Pakdel, Hooshang

doi:10.1007/978-94-009-2737-7_45

Cited by 13 publications

(10 citation statements)

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“…Work of Roy et al [8] provides an early example of a staged pyrolysis approach, using a multiple-hearth vacuum pyrolysis reactor. Using air-dry wood as feedstock, six pyrolysis-oil fractions Table 4 From DTG selected temperatures (printed in bold) for two-stage degasification…”

Section: Resultsmentioning

confidence: 99%

Biomass valorisation by staged degasification

Wild

Uil

Reith

et al. 2009

Journal of Analytical and Applied Pyrolysis

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Section: Resultsmentioning

confidence: 99%

Biomass valorisation by staged degasification

Wild

Uil

Reith

et al. 2009

Journal of Analytical and Applied Pyrolysis

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“…Most reactor designs employed to pyrolyze biomass subject the char to some degree of attrition, either from the heat transfer medium (fluidized beds and some entrained flow designs) or during particle acceleration (vortex type). The exception to this is the staged-hearth, vacuum pyrolysis reactor developed at the University of Laval in Quebec, Canada [4].…”

mentioning

confidence: 99%

Removal of Residual Char Fines from Pyrolysis Vapors by Hot Gas Filtration

Scahill

Diebold

Feik

1997

Developments in Thermochemical Biomass Conversion

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An NREL-designed vortex reactor fast pyrolysis process development unit (PDU) has been used to investigate hot gas filtration of biomass pyrolysis vapors. Most of the experimental work employed a conventional baghouse type of filter that used NEXTEL™ ceramic cloth filter bags as the filter medium.A series of experimental runs demonstrated that hot gas filtered biocrude oils having less than 10 ppm of total alkali could be reproducibly made. Removal of the char cake from the filter elements proved to be a difficult problem. The char appears to become progressively more sintered to itself and the filter as a function of the cumulative biomass processed. Controlled oxidation does remove this dense char from the filters, but leaves residual ash on the filter cloth fibers. This ash may in turn cause subsequent biomass pyrolysis vapors that pass through the filter to produce additional char (coke) in the interstices of the filter cloth. Data are presented that suggest this char formation may contribute to a more rapid rise in the rate of filter blinding as measured by the increase in recovered filter pressure drop.

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“…Various systems for vapor quench and recovery have used complicated condensing and coalescing systems including electrostatic precipitators, cyclones, filters, and/or spray towers. Another type of flash pyrolysis system operates at subatmospheric pressure to keep the vapor residence time to a minimum while controlling the rate of temperature increase in larger particle biomass feedstock [8].…”

Section: Thermochemical Liquefaction Of Biomassmentioning

confidence: 99%

Evaluation of Wastewater Treatment Requirements for Thermochemical Biomass Liquefaction

Elliott

1993

Advances in Thermochemical Biomass Conversion

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This report was prepared as an account of work sponsored by an agency of the United States Government, Neither the United States Government nor any agency t!hcreof, nor any of their _ ,, _ .,._ employees, makes any warranty, express or implied, or assumes any lel_al liability or responsi, l _ _ _l i_ R bility for the accuracy, completeness, or usefulness of any information, apparatus, product, or |I_ l_,_ "_ process disclosed, or represents that its use would not infringe privately owned rights. Refer.|W|_][_W_ enc¢ herein to any specific commercial product, process, or service by trade name, trade:mark, manufacturer, or otherwise dots not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency ther_f. The views .._.N_.N and opinions of authors expressed herein do not necc_arily state or reflect those of the = United States Government-r _ny _-_-_Cy thsr.-sf.

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Preliminary Feasibility Study of the Biomass Vacuum Pyrolysis Process

Cited by 13 publications

References 1 publication

Biomass valorisation by staged degasification

Biomass valorisation by staged degasification

Removal of Residual Char Fines from Pyrolysis Vapors by Hot Gas Filtration

Evaluation of Wastewater Treatment Requirements for Thermochemical Biomass Liquefaction

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