Catalytic hydrotreating of biomass liquefaction products to produce hydrocarbon fuels: Interim report

Elliott, D C; Baker, E G

doi:10.2172/6912635

Title: Catalytic hydrotreating of biomass liquefaction products to produce hydrocarbon fuels: Interim report

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Abstract

Research catalytic hydrotreatment of biomass liquefaction products to a gasoline has been technically demonstrated in a bench-scale continuous processing unit. This report describes the development of the chemistry needed for hydrotreatment of both high pressure and pyrolyzate biomass liquefaction products and outlines the important processing knowledge gained by the research. Catalyst identity is important in hydrotreatment of phenolics. Hydrogenation catalysts such as palladium, copper chromite, cobalt and nickel show activity with nickel being the most active. Major products include benzene, cyclohexane, and cyclohexanone. The hydrotreating catalysts cobalt-molybdenum, nickel-molybdenum and nickel-tungsten exhibit some activity when added to the reactor in the oxide form and show a great specificity for hydrodeoxygenation of phenol without saturation of the benzene product. The sulfide form of these catalysts is much more active than the oxide form and, in the case of the cobalt-molybdenum, much of the specificity for hydrodeoxygenation is retained. Substitution on the phenolic ring has only marginal effects on the hydrotreating reaction. However, the methoxy (OCH/sub 3/) substituent on the phenol ring is thermally unstable relative to other phenolics tested. The pyrolysis products dominate the product distribution when cobalt-molybdenum is used as the hydrotreating catalyst for methoxyphenol. The product from catalytic hydrotreatment ofmore »« less

Authors:: Elliott, D C; Baker, E G

Publication Date:: Sat Mar 01 00:00:00 EST 1986

Research Org.:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

OSTI Identifier:: 6912635

Report Number(s):: PNL-5844
ON: DE87004217

DOE Contract Number:: AC06-76RL01830

Resource Type:: Technical Report

Resource Relation:: Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted

Country of Publication:: United States

Language:: English

Subject:: 10 SYNTHETIC FUELS; 09 BIOMASS FUELS; BIOMASS; CHEMICAL COMPOSITION; LIQUEFACTION; PYROLYSIS; CATALYTIC HYDROSOLVATION PROCESS; BENCH-SCALE EXPERIMENTS; COBALT; CATALYTIC EFFECTS; COPPER COMPOUNDS; MOLYBDENUM; NICKEL; PALLADIUM; PHENOLS; REDUCTION; PYROLYTIC OILS; SYNTHETIC FUELS; AROMATICS; EXPERIMENTAL DATA; GAS CHROMATOGRAPHY; HIGH PRESSURE; HIGH TEMPERATURE; INFRARED SPECTRA; WOOD FUELS; CHEMICAL REACTIONS; CHROMATOGRAPHY; COAL LIQUEFACTION; DATA; DECOMPOSITION; ELEMENTS; ENERGY SOURCES; FUELS; HYDROXY COMPOUNDS; INFORMATION; METALS; NUMERICAL DATA; OILS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; PLATINUM METALS; PYROLYSIS PRODUCTS; RENEWABLE ENERGY SOURCES; SEPARATION PROCESSES; SPECTRA; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; 090121* - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989); 140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)

Citation Formats


                    Elliott, D C, and Baker, E G. Catalytic hydrotreating of biomass liquefaction products to produce hydrocarbon fuels: Interim report.  United States: N. p., 1986. 
        Web.  doi:10.2172/6912635.

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                    Elliott, D C, & Baker, E G. Catalytic hydrotreating of biomass liquefaction products to produce hydrocarbon fuels: Interim report.  United States.  https://doi.org/10.2172/6912635

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                    Elliott, D C, and Baker, E G. 1986.  
        "Catalytic hydrotreating of biomass liquefaction products to produce hydrocarbon fuels: Interim report".  United States.  https://doi.org/10.2172/6912635.  https://www.osti.gov/servlets/purl/6912635.

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@article{osti_6912635,

  title        = {Catalytic hydrotreating of biomass liquefaction products to produce hydrocarbon fuels: Interim report},

  author       = {Elliott, D C and Baker, E G},

  abstractNote = {Research catalytic hydrotreatment of biomass liquefaction products to a gasoline has been technically demonstrated in a bench-scale continuous processing unit. This report describes the development of the chemistry needed for hydrotreatment of both high pressure and pyrolyzate biomass liquefaction products and outlines the important processing knowledge gained by the research. Catalyst identity is important in hydrotreatment of phenolics. Hydrogenation catalysts such as palladium, copper chromite, cobalt and nickel show activity with nickel being the most active. Major products include benzene, cyclohexane, and cyclohexanone. The hydrotreating catalysts cobalt-molybdenum, nickel-molybdenum and nickel-tungsten exhibit some activity when added to the reactor in the oxide form and show a great specificity for hydrodeoxygenation of phenol without saturation of the benzene product. The sulfide form of these catalysts is much more active than the oxide form and, in the case of the cobalt-molybdenum, much of the specificity for hydrodeoxygenation is retained. Substitution on the phenolic ring has only marginal effects on the hydrotreating reaction. However, the methoxy (OCH/sub 3/) substituent on the phenol ring is thermally unstable relative to other phenolics tested. The pyrolysis products dominate the product distribution when cobalt-molybdenum is used as the hydrotreating catalyst for methoxyphenol. The product from catalytic hydrotreatment of high-pressure biomass liquefaction products confirms the model compounds studies. Catalytic processing at 350 to 400/sup 0/C and 2000 psig with the sulfided cobalt-molybdenum or nickel-molybdenum catalyst produced a gasoline-like product composed of cyclic and aromatic compounds. Oxygen contents in products were in the range of 0 to 0.7 wt % and hydrogen to carbon atomic ratios ranged from 1.5 to 2.0. 46 refs., 10 figs., 21 tabs.},

  doi          = {10.2172/6912635},

  url          = {https://www.osti.gov/biblio/6912635},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sat Mar 01 00:00:00 EST 1986},

  month        = {Sat Mar 01 00:00:00 EST 1986}

}

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