公开(公告)号：US09346730B2

公开(公告)日：2016-05-24

申请号：US13941297

申请日：2013-07-12

Applicant: DSM IP Assets B.V.

Inventor： Johannes Gerardus De Vries ,  Johannes Augustinus Kroon ,  Rudy Francois Maria Jozef Parton ,  Pierre Louis Woestenborghs ,  Arie De Rijke

IPC: C07D307/50 ,  C07C51/00

CPC classification number: C07C51/00 ,  C07C51/47 ,  C07D307/50 ,  C07C59/185

Abstract: A process for producing furfural and levulinic acid from lignocellulose-comprising biomass is disclosed. The biomass is slurried using water and optionally an acid, subjected to hydrolysis, and then subjected to a solid/liquid separation to yield at least an aqueous fraction comprising C5 and C6 sugars and a solid fraction comprising cellulose and lignin. Furfural is obtained by adding an organic solvent to the aqueous fraction, heating at 120-220° C. for a sufficient time to form furfural, cooling, and separating an organic phase comprising at least part of the furfural from an aqueous phase. Levulinic acid is obtained by suspending the solid fraction in water and optionally an acid, heating the suspension to 140-220° C., and separating an aqueous fraction comprising the levulinic acid from a solid fraction.

Abstract translation: 公开了一种由含木素纤维素的生物质生产糠醛和乙酰丙酸的方法。 使用水和任选的酸将生物质浆化，进行水解，然后进行固/液分离，至少产生包含C5和C6糖的含水级分和包含纤维素和木质素的固体部分。 通过向含水部分中加入有机溶剂，在120-220℃下加热足够的时间以形成糠醛，冷却和从水相中分离包含至少部分糠醛的有机相，从而获得糠醛。 通过将固体部分悬浮在水和任选的酸中，将悬浮液加热至140-220℃并从固体部分中分离含有乙酰丙酸的水性级分来获得乙酰丙酸。

公开(公告)号：US11319559B2

公开(公告)日：2022-05-03

申请号：US16754334

申请日：2018-10-08

Applicant: DSM IP ASSETS B.V.

Inventor： Johannes Augustinus Kroon ,  Pierre Louis Woestenborghs

IPC: C12P7/00 ,  C12P7/10 ,  C12P19/14

Abstract: The invention relates to a process for the preparation of a sugar and/or fermentation product from lignocellulosic material.

公开(公告)号：US20140018555A1

公开(公告)日：2014-01-16

申请号：US13941297

申请日：2013-07-12

Applicant: DSM IP ASSETS B.V.

Inventor： Johannes Gerardus De Vries ,  Johannes Augustinus Kroon ,  Rudy Francois Maria Jozef Parton ,  Pierre Louis Woestenborghs ,  Arie De Rijke

IPC: C07D307/50 ,  C07C51/00

CPC classification number: C07C51/00 ,  C07C51/47 ,  C07D307/50 ,  C07C59/185

Abstract: A process for producing furfural and levulinic acid from lignocellulose-comprising biomass is disclosed. The biomass is slurried using water and optionally an acid, subjected to hydrolysis, and then subjected to a solid/liquid separation to yield at least an aqueous fraction comprising C5 and C6 sugars and a solid fraction comprising cellulose and lignin. Furfural is obtained by adding an organic solvent to the aqueous fraction, heating at 120-220° C. for a sufficient time to form furfural, cooling, and separating an organic phase comprising at least part of the furfural from an aqueous phase. Levulinic acid is obtained by suspending the solid fraction in water and optionally an acid, heating the suspension to 140-220° C., and separating an aqueous fraction comprising the levulinic acid from a solid fraction.

Abstract translation: 公开了一种由含木素纤维素的生物质生产糠醛和乙酰丙酸的方法。 使用水和任选的酸将生物质浆化，进行水解，然后进行固/液分离，至少产生包含C5和C6糖的含水级分和包含纤维素和木质素的固体部分。 通过向含水部分中加入有机溶剂，在120-220℃下加热足够的时间以形成糠醛，冷却和从水相中分离包含至少部分糠醛的有机相，从而获得糠醛。 通过将固体部分悬浮在水和任选的酸中，将悬浮液加热至140-220℃并从固体部分中分离含有乙酰丙酸的水性级分来获得乙酰丙酸。