-
公开(公告)号：US20210310086A1
公开(公告)日：2021-10-07
申请号：US17250508
申请日：2019-07-15
摘要： Lignocellulosic biomass (11) is processed to produce organic chemicals by (a) subjecting the biomass to a first hydrolysis (14) to hydrolyse hemicellulose, to form a liquid component comprising the products of hemicellulose hydrolysis in solution, and a solid component comprising cellulose and lignin; (b) then subjecting the solid component to a second hydrolysis (20), so as to hydrolyse cellulose and vaporise the resulting products of cellulose hydrolysis; and (c) then condensing (22) the resulting vapours to form an aqueous solution (25) containing the products of cellulose hydrolysis. After the first hydrolysis (14) and before the second hydrolysis (20), the process also comprises subjecting the solid component to a washing step (16). In this washing step (16) the solid component is washed with the aqueous solution (25) that contains the products of cellulose hydrolysis. Hence the resultant solution contains the products of both the first and the second hydrolysis steps (14, 20).
-
公开(公告)号：US11920203B2
公开(公告)日：2024-03-05
申请号：US17250508
申请日：2019-07-15
摘要： Lignocellulosic biomass (11) is processed to produce organic chemicals by (a) subjecting the biomass to a first hydrolysis (14) to hydrolyse hemicellulose, to form a liquid component comprising the products of hemicellulose hydrolysis in solution, and a solid component comprising cellulose and lignin; (b) then subjecting the solid component to a second hydrolysis (20), so as to hydrolyse cellulose and vaporise the resulting products of cellulose hydrolysis; and (c) then condensing (22) the resulting vapours to form an aqueous solution (25) containing the products of cellulose hydrolysis. After the first hydrolysis (14) and before the second hydrolysis (20), the process also comprises subjecting the solid component to a washing step (16). In this washing step (16) the solid component is washed with the aqueous solution (25) that contains the products of cellulose hydrolysis. Hence the resultant solution contains the products of both the first and the second hydrolysis steps (14, 20).
-
公开(公告)号：US20240068059A1
公开(公告)日：2024-02-29
申请号：US18258103
申请日：2021-12-15
发明人： Neil Hindle
IPC分类号： C13K1/02
CPC分类号： C13K1/02
摘要： Fermented grain (11), such as brewer's grain or wet cake, which contains both hemicellulose and cellulose, is processed to provide sugars. The grain is first treated (14) with hot water to hydrolyse hemicellulose; and an aqueous phase (26) containing the products of the hydrolysis of hemicellulose is separated from particulate material. The particulate material is then fed (18) into a flow of steam at above 450° C. along a reactor duct (20, 32) to form a flowing mixture of particles and vapours, the mass flow of steam being at least 3 times the mass flow of particulate matter, such that the particulate material is heated rapidly; and after no more than 3 seconds at least 75% (by mass) of the particles are separated (21) from the flowing mixture. The vapours of the flowing mixture are then condensed (22). The result is a sugar solution (25). Steady feeding of the particulate material may be achieved with an eductor (32) that includes a nozzle (36) for entry of the steam, and a sloping deflector plate (40) above it.
-
-
搜索结果
3 条记录 (耗时 0.01 秒)
