US 12,344,576 B2
Bed material for thermolytic fragmentation of sugars
Christian Mårup Osmundsen, Gentofte (DK); Esben Taarning, Frederiksberg (DK); and Morten Boberg Larsen, Smørum (DK)
Assigned to HALDOR TOPSØE A/S, Kgs. Lyngby (DK)
Appl. No. 17/624,299
Filed by HALDOR TOPSØE A/S, Kgs. Lyngby (DK)
PCT Filed Aug. 13, 2020, PCT No. PCT/EP2020/072756
§ 371(c)(1), (2) Date Dec. 31, 2021,
PCT Pub. No. WO2021/032590, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. PA 2019 00972 (DK), filed on Aug. 16, 2019; and application No. PA 2019 00973 (DK), filed on Aug. 16, 2019.
Prior Publication US 2022/0411357 A1, Dec. 29, 2022
Int. Cl. C07C 45/51 (2006.01); B01J 6/00 (2006.01); B01J 8/00 (2006.01); B01J 8/08 (2006.01); B01J 8/18 (2006.01); B01J 8/38 (2006.01); C07C 45/56 (2006.01); C07C 45/60 (2006.01); C07C 47/19 (2006.01)
CPC C07C 45/51 (2013.01) [B01J 6/008 (2013.01); B01J 8/003 (2013.01); B01J 8/0055 (2013.01); B01J 8/0065 (2013.01); B01J 8/08 (2013.01); B01J 8/1818 (2013.01); B01J 8/1836 (2013.01); B01J 8/388 (2013.01); C07C 45/56 (2013.01); C07C 45/60 (2013.01); C07C 47/19 (2013.01); B01J 2208/00362 (2013.01); B01J 2208/0038 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A process for thermolytic fragmentation of a sugar into a composition comprising C1-C3 oxygenates, the process comprising:
a. providing a circulating, fluidized stream of heat carrying particles, wherein the heat carrying particles are circulated to a heating zone to produce heated heat carrying particles, and then the heated heat carrying particles are circulated from the heating zone to a fragmentation zone to provide heat to the fragmentation zone and producing cooled heat carrying particles, and then the cooled heat carrying particles are circulated back to the heating zone for reheating;
b. introducing a feedstock solution comprising the sugar into the fragmentation zone of the circulating, fluidized stream of heat carrying particles to absorb heat and convert the sugar by thermolytic fragmentation into the C1-C3 oxygenates;
c. separating a fragmentation product stream comprising the C1-C3 oxygenates from the stream of cooled heat carrying particles; and then
d. recovering the composition comprising C1-C3 oxygenates from the fragmentation product stream,
wherein the number of acid sites on the surface of the heat carrying particles is less than 3 μmol/g as measured by NH3-TPD.