Abstract
The conversion of oxygen-rich biomass pyrolysis products to olefinic and aromatic hydrocarbons has been studied in real time using molecular beam mass spectrometry (MBMS). Direct MBMS sampling of the vapors allows rapid analysis of complex gas phase species: (1) the pyrolysis products and the degree of conversion to hydrocarbons for the major compound classes; (2) the yields of water and carbon oxides, compounds in which rejected oxygen appears; (3) the composition of organic catalyst products, which contain olefins, substituted benzenes, furans, and naphthalenes. Methods have been developed that allow yield estimates of the major products, based on the MBMS results. The important parameters influencing yields and product distributions, which are temperature, weight hourly space velocity, and feed partial pressure, have been systematically screened. The effects of these major variables have been studied over the complete catalyst life from initial exposure of the fresh catalyst to the pyrolysis vapor to the breakthrough of feed due to coke deposition and deactivation. These studies have indicated an additional mechanism of aromatic hydrocarbon formation from biomass pyrolysis is present that is not observed in methanol conversion.
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References
Milne, T. A. and Soltes, E. J., Production. Analysis and Upgrading of Oils from Biomass. Preprints of Papers presented at Denver, Colorado, April 5–10, 1987, 32, No. 2, Division of Fuel Chemistry, American Chem. Soc.
Diebold, J. P., Chum, H. L., Evans, R. J., Milne, T. A., Reed, T. B., and Scahill, J. W., Low-Pressure Upgrading of Primary Pyrolysis Oils from Biomass and Organic Wastes. ed., D. L. Klass. Institute of Gas Technology, Chicago, and Elsevier Applied Sciences Publishers, London, 1987, pp. 801–830.
Mobil Research and Development Corporation. Catalyst Batch MCSG-2. 1985.
Argauer, R. J. and Landolt, G. R., Crystalline Zeolite ZSM-5 and Method of Preparing Same. U.S. Patent 3,702, 886. 1972.
Chang, C. D., Lang, W. H., Silvestri, A. J., Manufacture of Gasoline. U.S. Patent 3,998,898, Dec. 21, 1976.
Weisz, P. B., Haag, W. O. and Rodewald, P. G., Catalytic Production of High-Grade Fuel (Gasoline) from Biomass Compounds by Shape-Selective Catalysis. Science. 1979, 206, 57–58.
Weisz, P. B., The Remarkable Active Site. Chemtech. June, 1987, 368.
Frankiewicz, T. C., The Conversion of Biomass-Derived Pyrolytic Vapors to Hydrocarbons. pp. 123–135 in Proceedings Specialists’ Workshop on Fast Pyrolysis of Biomass. ed., J. P. Diebold, Copper Mountain, Colorado, October 19–22, 1980, SERI/CP-622–1096.
Kaliaguine, S., Upgrading Pyrolytic Oils from Wood and Other Biomass. An Annotated Bibliogaphic Review. Report for the Energy Project Office of the NRCC, March, 1981.
Kaliaguine, S., Upgrading Pyrolytic Oils from Wood. Wood Liquefaction Specialists Meeting. University of Saskatchewan, February 16–17, 1982, pp. 75–125.
Mathews, J. F., Tepylo, M. G., Eager, R. L., and Pepper, J. M., Upgrading of Aspen Poplar Wood Oil over HZSM-5 Zeolite Catalyst. Can. J. Chem. Eng., 1986, 63, 686–89.
Chantal, P. D., Kaliaguine, S., Grandmaison, J. L., and Mahay, S., Production of Hydrocarbons from Aspen Poplar Pyrolytic Oils over HZSM-5. Applied Catalysts., 1984, 10, 317–332.
Evans, R. J. and Milne, T. A., Molecular-Beam Mass Spectrometric Studies of Wood Vapor and Model Compounds Over HZSM-5 Catalyst. Preprints of 193rd ACS Meeting, Div. Fuel Chemistry, Denver, CO, April 5–10, 1987, 32, No. 2, pp. 287–296.
Renaud, J., Grandmai son, J. L., Roy, Ch. and Kaliaguine, S., Conversion of Vacuum Pyrolytic Oils from Populus Deltoides over H-ZSM-5. Preprints of 193rd ACS Mtg., Div. Fuel Chem., Denver, Colorado, April 5–10, 1987, 32, No. 2, pp. 276–286.
Diebold, J. P., and Scahill, J. W., Biomass-to-Gasoline (BTG): Upgrading Pyrolysis Vapors to Aromatic Gasoline with Zeolite Catalysts at Atmospheric Pressure. Preprints of 193rd ACS Mtg., Div. Fuel Chem., Denver, Colorado, April 5–10, 1987, 32, No. 2, pp. 297–307 and this volume.
Chen, N. Y., Walsh, D. E. and Koenig, L. R., Fluidized Bed Upgrading of Wood Pyrolysis Liquids and Related Compounds. Preprints of 193rd ACS Mtg., Div. Fuel Chem., Denver, CO, April 5–10, 1987, 32, No. 2, pp. 264–275.
Evans, R. J. and Milne, T. A., Molecular Characterization of the Pyrolysis of Biomass. I. Fundamentals. Energy and Fuels, 1987, 1, 123–137.
Evans, R. J. and Milne, T. A., Molecular Characterization of the Pyrolysis of Biomass. II. Applications. Energy and Fuels. 1987, 1, 311–319.
Box, G. E. P. and Behnken, D. W., Some New Three Level Designs for the Study of Quantitative Variables, Technometrics. 1960, 2, 455–475.
Filley, J., Milne, T. A. and Evans, R. J., Manuscript in Preparation. 1988. SERI.
Draper, N. R. and Smith, H., Applied Regression Analysis. 2nd ed., John Wiley and Sons, New York, 1981, pp. 257–266.
Chang. C. D., Lang, W. H., and Smith, R. L., The Conversion of Methanol and Other O-Compounds to Hydrocarbons over Zeolite Catalysts. II. Pressure Effects. J. of Catal., 1979, 56, 169–173.
Haag, W. O., Olson, D. H.; Weisz, P. B., “Shape-Selective Catalysis in Aromatics Processing,” in Chemistry for the Future. Grunewald, H., ed., Pergamon Press, NY. 1984.
Chen, N. Y.; Yan, T. Y., “M2 Forming — A Process for Aromatization of Light Hydrocarbons,” Ind. Eng. Chem. Process Des. Dev., 1986, 25, 151–155.
Piskorz, J. and Scott, D. S., The Composition of Oils Obtained by the Fast Pyrolysis of Different Woods. Preprints of 193rd ACS Mtg., Div. Fuel Chem. Denver, Colorado, April 5–10, 1987, 32 (2) pp. 215–222.
Scott, D. S., Piskorz, J., Bergougnou, M. A., Graham, R., and Overend, R. B., The Role of Temperature in the Fast Pyrolysis of Cellulose and Wood. Ind. Eng. Chem. Res., 1988, 27, 8–15.
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Milne, T.A., Evans, R.J., Filley, J. (1988). Molecular Beam Mass Spectrometric Studies of HZSM-5 Activity During Wood Pyrolysis Product Conversion. In: Bridgwater, A.V., Kuester, J.L. (eds) Research in Thermochemical Biomass Conversion. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2737-7_69
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DOI: https://doi.org/10.1007/978-94-009-2737-7_69
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