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US 11,801,497 B2Granted
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.
Claims16
A hydrodeoxygenation (HDO) catalyst which is Ru—MoFeP supported on Al2O3.
A method for preparing biofuel from biomass, the method comprising:
- (a) fast hydropyrolysis or fast pyrolysis of biomass to provide bio-vapour and/or bio-oil;
- (b) upgrading of the bio-vapour and/or bio-oil from step (a) in a fixed bed tandem catalytic-upgrading reactor to provide (i) the biofuel, and (ii) a stream comprising C1-C4 hydrocarbons, CO and CO, and
- (c) steam reforming the stream comprising C1-C4 hydrocarbons, CO and CO2 from step (b) in the presence of a sorbent suitable for CO2 capture, to provide hydrogen,
- wherein the fixed bed tandem catalytic-upgrading reactor 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.
1 more element
Dependencies are inferred from the claim text.