A review of the toxicity of biomass pyrolysis liquids formed at low temperatures

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Description

The scaleup of biomass fast pyrolysis systems to large pilot and commercial scales will expose an increasingly large number of personnel to potential health hazards, especially during the evaluation of the commercial use of the pyrolysis condensates. Although the concept of fast pyrolysis to optimize liquid products is relatively new, low-temperature pyrolysis processes have been used over the aeons to produce charcoal and liquid by-products, e.g., smoky food flavors, food preservatives, and aerosols containing narcotics, e.g., nicotine. There are a number of studies in the historical literature that concern the hazards of acute and long-term exposure to smoke and to ... continued below

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42 p./1.4 Mb

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Diebold, J.P. April 1, 1997.

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  • Diebold, J.P. Thermalchemie, Inc., Lakewood, CO (United States)

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Description

The scaleup of biomass fast pyrolysis systems to large pilot and commercial scales will expose an increasingly large number of personnel to potential health hazards, especially during the evaluation of the commercial use of the pyrolysis condensates. Although the concept of fast pyrolysis to optimize liquid products is relatively new, low-temperature pyrolysis processes have been used over the aeons to produce charcoal and liquid by-products, e.g., smoky food flavors, food preservatives, and aerosols containing narcotics, e.g., nicotine. There are a number of studies in the historical literature that concern the hazards of acute and long-term exposure to smoke and to the historical pyrolysis liquids formed at low temperatures. The reported toxicity of smoke, smoke food flavors, and fast pyrolysis oils is reviewed. The data found for these complex mixtures suggest that the toxicity may be less than that of the individual components. It is speculated that there may be chemical reactions that take place that serve to reduce the toxicity during aging. 81 refs.

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42 p./1.4 Mb

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OSTI as DE97000231

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  • Other Information: PBD: Apr 1997

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  • Other: DE97000231
  • Report No.: NREL/TP--430-22739
  • Grant Number: AC36-83CH10093
  • DOI: 10.2172/468520 | External Link
  • Office of Scientific & Technical Information Report Number: 468520
  • Archival Resource Key: ark:/67531/metadc674766

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  • April 1, 1997

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  • July 25, 2015, 2:21 a.m.

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  • March 31, 2016, 5:30 p.m.

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Diebold, J.P. A review of the toxicity of biomass pyrolysis liquids formed at low temperatures, report, April 1, 1997; Golden, Colorado. (digital.library.unt.edu/ark:/67531/metadc674766/: accessed November 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.