Catalytic conversion of microalgae and vegetable oils to premium gasoline, with shape-selective zeolites

Abstract A seminal paper by Mobil researchers in 1979 demonstrated that a remarkable range of materials were convertible to a similar, high-octane, aromatic, gasoline product slate when passed over HZSM-5, a medium-pore, shape-selective, acid catalyst. These materials ranged from low molecular weight oxygenates, such as methanol, to high molecular weight latexes and vegetable oils. In this paper, we briefly review the thermochemical conversion options for algal and vegetable lipids, present the potential advantages of the zeolite approach and consider the possibility of converting either the whole algae or vegetable oil seed, or crudely extracted lipids, to a product virtually indepedent of fatty acid composition of the lipid. Experimental data on pyrolysis, and on product slates and yields over H-ZSM5, are shown for rapeseed oil, tripalmitin and algal lipids. The pyrolyzer-catalytic reactor, and the ambient pressure, molecular beam, mass spectrometric analytical sampling system, are shown and briefly described.

[1]  S. L. Meisel.  Gasoline from methanol in one step , 1976 .

[2]  Jackie W. D. Robbins,et al.  Chinese tallow seed oil as a diesel fuel extender , 1985 .

[3]  S. Kaliaguine,et al.  Production of hydrocarbons from aspen poplar pyrolytic oils over H-ZSM5 , 1984 .

[4]  Nick Nagle,et al.  Production of methyl ester fuel from microalgae , 1990 .

[5]  R. Korus,et al.  Production, processing, and utilization of rapeseed oil as a diesel fuel substitute. , 1989 .

[6]  Thomas A. Milne,et al.  Molecular characterization of the pyrolysis of biomass , 1987 .

[7]  Paul G. Roessler,et al.  Microalgae culture collection, 1986-1987 , 1986 .

[8]  A. J. Engel,et al.  Hydrocarbon feedstocks from algae hydrogenation , 1981 .

[9]  D. Walsh,et al.  Fluidized bed upgrading of wood pyrolysis liquids and related compounds , 1987 .

[10]  N. Bakhshi,et al.  Effect of hydrothermal treatment of HZSM-5 catalyst on its performance for the conversion of canola and mustard oils to hydrocarbons , 1986 .

[11]  P. B. Weisz,et al.  Catalytic Production of High-Grade Fuel (Gasoline) from Biomass Compounds by Shape-Selective Catalysis , 1979, Science.

[12]  A. Schwab,et al.  Preparation and properties of diesel fuels from vegetable oils , 1987 .

[13]  N. Bakhshi,et al.  Catalytic conversion of canola oil to fuels and chemical feedstocks Part I. Effect of process conditions on the performance of HZSM‐5 catalyst , 1986 .

[14]  N. Bakhshi,et al.  Effect of pretreatment of HZSM-5 catalyst on its performance in canola oil upgrading , 1985 .

[15]  R. Scheithauer,et al.  Economics of vegetable oil processing , 1988 .

[16]  C. Roy,et al.  Conversion of vacuum pyrolytic oils from populus deltoides over H-ZSM-5 , 1987 .

[17]  T. Tornabene,et al.  TOTAL LIPID PRODUCTION OF THE GREEN ALGA NANNOCHLOROPSIS SP. QII UNDER DIFFERENT NITROGEN REGIMES 1 , 1987 .

[18]  Thomas A. Milne,et al.  Molecular characterization of the pyrolysis of biomass. 2. Applications , 1987 .

[19]  K. J. Harrington,et al.  Chemical and physical properties of vegetable oil esters and their effect on diesel fuel performance , 1986 .

[20]  D. A. Johnson,et al.  An outdoor test facility for the large-scale production of microalgae , 1988 .

[21]  Donna A. Johnson,et al.  Liquid Fuels from Microalgae , 1987 .

[22]  L W Hillen,et al.  Hydrocracking of the oils of Botryococcus braunii to transport fuels , 1982, Biotechnology and bioengineering.

[23]  D. Feinberg,et al.  Fuels from microalgae: Technology status, potential, and research requirements , 1986 .

[24]  Thomas A. Milne,et al.  Molecular Beam Mass Spectrometric Studies of HZSM-5 Activity During Wood Pyrolysis Product Conversion , 1988 .

[25]  C. Parrish,et al.  Determination of lipid class concentrations in seawater by thin-layer chromatography with flame ionization detection , 1984 .

[26]  R. J. Evans,et al.  Molecular-beam, mass-spectrometric studies of wood vapor and model compounds over HZSM-5 catalyst , 1987 .