US 9,809,504 B2
Process for transformation of a feedstock comprising a lignocellulosic biomass using an acidic homogeneous catalyst in combination with a heterogeneous catalyst comprising a specific substrate
Etienne Girard, Lyons (FR); Amandine Cabiac, Givors (FR); and Damien Delcroix, Saint-Maurice-L'Exil (FR)
Assigned to IFP ENERGIES NOUVELLES, Rueil-Malmaison (FR)
Filed by IFP Energies Nouvelles, Rueil-Malmaison (FR)
Filed on Sep. 23, 2015, as Appl. No. 14/862,296.
Claims priority of application No. 14 59112 (FR), filed on Sep. 26, 2014.
Prior Publication US 2016/0090331 A1, Mar. 31, 2016
Int. Cl. C07B 33/00 (2006.01); B01J 21/02 (2006.01); B01J 21/06 (2006.01); B01J 23/24 (2006.01); B01J 23/42 (2006.01); B01J 23/755 (2006.01); B01J 23/34 (2006.01); C07C 29/132 (2006.01); C07C 29/60 (2006.01); C07C 27/04 (2006.01); B01J 23/00 (2006.01); B01J 23/58 (2006.01); B01J 23/78 (2006.01); B01J 37/02 (2006.01); B01J 37/18 (2006.01); B01J 23/656 (2006.01); B01J 23/89 (2006.01)
CPC C07B 33/00 (2013.01) [B01J 21/02 (2013.01); B01J 21/063 (2013.01); B01J 21/066 (2013.01); B01J 23/002 (2013.01); B01J 23/34 (2013.01); B01J 23/42 (2013.01); B01J 23/58 (2013.01); B01J 23/755 (2013.01); B01J 23/78 (2013.01); B01J 37/0201 (2013.01); C07C 27/04 (2013.01); C07C 29/132 (2013.01); C07C 29/60 (2013.01); B01J 23/6562 (2013.01); B01J 23/8906 (2013.01); B01J 37/0236 (2013.01); B01J 37/18 (2013.01); Y02P 20/52 (2015.11)] 14 Claims
 
1. A process for transformation of a feedstock that is selected from among a lignocellulosic biomass and carbohydrates, by themselves or in a mixture, into mono-oxidized or poly-oxidized compounds, in which said feedstock is brought into contact, simultaneously, with a catalytic system that comprises one or more homogeneous catalyst(s) and one or more heterogeneous catalyst(s), in the same reaction chamber, in the presence of at least one solvent, with said solvent being water by itself or in a mixture with at least one other solvent, under a reducing atmosphere, and at a temperature of between 50° C. and 300° C., and at a pressure of between 0.5 MPa and 20 MPa, in which
said homogeneous catalyst(s) is/are selected from among inorganic Brønsted acids and organic Brønsted acids
said heterogeneous catalyst(s) is/are selected from among heterogeneous catalyst(s) comprising: at least one metal that is selected from among the metals of groups 6 to 11 and the metals of group 14 of the periodic table; and a substrate that is selected from among perovskites of formula ABO3, in which A is selected from among elements Mg, Ca, Sr and Ba, and La, and B is selected from among: elements Fe, Mn, Ti, and Zr; oxides of elements selected from among lanthanum (La), neodymium (Nd) and yttrium (Y), cerium (Ce) and niobium (Nb), by themselves or in a mixture; and mixed oxides that are selected from among aluminates of zinc (Zn), copper (Cu), and cobalt (Co), by themselves or in a mixture.