A hydro deoxygenation catalyst, a fixed bed tandem catalytic reactor, a method for preparing hydrogen and a method for preparing biofuel from biomass
AssigneesNorwegian University of Science and Technology (Ntnu), Sintef, Quantafuel Asa
InventorsDe CHEN, Kumar Ranjan ROUT, Isaac YEBOAH
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Abstract
The present invention relates to processes for the preparation of biofuel from biomass by fast hydropyrolysis or fast pyrolysis, using hydrogen generated by sorption enhanced steam reforming. The present invention also relates to fixed bed tandem catalytic-upgrading processes, and reactors and hydrodeoxygenation (HDO) catalysts useful in those processes.
Claims21
A hydrodeoxygenation (HDO) catalyst which is M1—MoM2P supported on a support, wherein M1 and M2 represent different transition metals.
The HDO catalyst according to any one of the preceding claims, wherein the molar ratio of Mo:M2:P is 0.8-1.2:0.8-1.2:0.8-1.2, and is preferably about 1:1:1.
The HDO catalyst according to any one of the preceding claims, wherein M1 is present in an amount of about 0.05 to about 5 wt %, based on the total weight of M1—MoM2P, preferably about 0.05 to about 0.1 wt %.
The HDO catalyst according to any one of the preceding claims, wherein the support is acidic oxide such as Al2O3, TiO2, ZrO2 or CeO2, a carbon material such as activated carbon, mesoporous carbon or carbon nanomaterials, or SiO2, and is more preferably Al2O3.
The HDO catalyst according to any one of the preceding claims, which is Ru—MoFeP supported on Al2O3.
A fixed bed tandem catalytic-upgrading reactor suitable for upgrading bio-vapour or bio-oil from fast hydropyrolysis or fast hydropyrolysis into biofuel, wherein:
- the fixed bed comprises an upstream portion and a downstream portion,
- the upstream portion comprises an C—C coupling catalyst, and
- the downstream portion comprises a hydrodeoxygenation (HDO) catalyst.
Dependencies are inferred from the claim text.