| abstract |
A process for the high temperature conversion of a cellulosic material into a bio-oil, wherein, under hydrogen atmosphere and in the presence of a catalyst, the cellulosic material is contacted in a reaction vessel with a liquid solvent, wherein water is present from 5% up to 80 wt%, based on the total amount of cellulosic material and liquid solvent present in the vessel, at an a controlled operating pressure of from equal to or more than 2.0 MPa to equal to or less than 13.0 MPa, wherein the partial hydrogen pressure contributes from equal to or more than 1.0 MPa to equal to or less than 6.0 MPa, and the total vapour pressure being lower than the autogenous pressure at the operating temperature and contributing in the range of from equal to or more than 1.0 MPa to equal to or less than 7.0 MPa, to produce a product mixture comprising bio-oil. |