Process for one-step conversion of lignocellulosic material to hydrocarbon products and catalyst for use in said process
AssigneeRISE Research Institutes of Sweden AB
InventorsChristian Bernlind, Martin Hedberg
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Abstract
A lignocellulosic starting material can be converted into an aqueous phase and a hydrocarbon phase in a one-step process by subjecting a mixture of the lignocellulosic starting material, an amorphous and unsupported sulfided nickel-molybdenum catalyst, and optionally a co-feed, to not less than a stoichiometric amount of hydrogen, elevated pressure and a temperature in the interval of 350-450° C. A novel catalyst for use in said process and a method for its production are also disclosed.
Claims21
A process for the conversion of a lignocellulosic starting material into an aqueous phase and a hydrocarbon phase, wherein the lignocellulosic starting material being a whole and non-fractionated lignocellulosic material, an amorphous and unsupported sulfided nickel-molybdenum catalyst, and optionally a co-feed, are mixed and subjected to elevated pressure and a temperature in the interval of 350-450° C. in the presence of hydrogen gas, thereby converting the lignocellulosic starting material to the aqueous phase and the hydrocarbon phase.
An amorphous and unsupported nickel-molybdenum sulfide catalyst, wherein said amorphous and unsupported nickel-molybdenum sulfide catalyst has an empirical formula with regard to molybdenum (Mo), nickel (Ni) and sulfur(S):
- MoxNiySz
- wherein x=1, 0.1<y<0.2 and z above 0≤1.0.
A process for the conversion of a lignocellulosic starting material into an aqueous phase and a hydrocarbon phase, wherein:
- A) the lignocellulosic starting material is chosen from wood chips and/or saw dust with a dry content of >50%;
- forestry residue chosen from bark, and/or roots, and/or branches with a dry content of >50%;
- wood having been subjected to drying or a torrefaction process;
- lignocellulose from agriculture containing at least 50% originating from lignocellulosic matter;
- and mixtures thereof,
- B) an amorphous and unsupported sulfided nickel-molybdenum catalyst, and optionally C) a co-feed,
- are mixed and subjected to elevated pressure and a temperature in the interval of 350-450° C. in the presence of hydrogen gas, thereby converting the lignocellulosic starting material to the aqueous phase and the hydrocarbon phase.
Dependencies are inferred from the claim text.