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公开(公告)号：EP3377506A1
公开(公告)日：2018-09-26
申请号：EP16784481.0
申请日：2016-10-19
申请人： Ren Fuel K2B AB
CPC分类号： C07G1/00 , C08H8/00 , C08L97/005
摘要： The invention relates to a process for making a purified lignin composition comprising a carrier liquid suitable for processing in a refinery. It comprises providing an aqueous lignin composition comprising lignin, cooking chemicals and water and adding a carrier liquid to the aqueous lignin to provide an organic phase. Then all or substantially all the water is removed from the composition. The lignin composition is processed to make the lignin more soluble in the carrier liquid in order to transfer more of the lignin to the organic phase. Cooking chemicals are removed, suitably by of washing by liquid/liquid extraction using a washing liquid. Finally washing liquid is removed.
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公开(公告)号：EP3492522A1
公开(公告)日：2019-06-05
申请号：EP18214840.3
申请日：2017-12-15
申请人： Ren Fuel K2B AB
摘要： A polymeric material comprising a first polymer and a second polymer where the first polymer is a natural or a synthetic polymer and the second polymer is modified lignin. The modified lignin is modified with an alkyl containing group via linker wherein the linker is an ether group and wherein the alkyl containing group is derived from fatty acid methyl ester..
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公开(公告)号：EP3116885A1
公开(公告)日：2017-01-18
申请号：EP15760769.8
申请日：2015-02-26
申请人： Ren Fuel K2B AB
CPC分类号： C07G1/00 , B01D61/027 , B01D61/142 , B01D61/145 , B01D61/58 , B01D2311/25 , B01D2311/2642 , B01D2315/12 , B01D2315/16 , B01D2317/022 , B01D2317/025 , B01D2317/08 , C08H6/00 , C08L97/005 , D21C11/0007 , D21C11/0042
摘要： The present invention relates to a method of membrane-filtrating a lignin containing composition in order to obtain a lignin fraction more suitable for further treatments.In particular it relates to treating a liquid lignin composition to obtain a lignin fraction having a desired molecular weight distribution by a membrane filtration. It comprises subjecting the liquid lignin composition to a first membrane filtration with a first filter cut-off adapted to remove species having a first molecular weight thereby providing a permeate with a molecular weight distribution defined by said cut-off. Then, the permeate from the first membrane filtration is; subjected to at least one further filtration step with a second filter cut-off, different from said first filter cut-off to provide a retentate (concentrate) with a molecular weight distribution defined by both the cut-off in the first filter the cut- off in said second filter. A dilution is performed on a desired lignin containing fraction at some point downstream of the first filtration unit. A lignin containing retentate (concentrate) is collected from the further ultrafiltration for further processing.
摘要翻译： 本发明涉及一种膜过滤含木质素的组合物以获得更适合进一步处理的木质素部分的方法。 特别地，其涉及处理液态木质素组合物以通过膜过滤获得具有所需分子量分布的木质素级分。 它包括使液体木质素组合物进行第一膜过滤，其中第一过滤器截止物适于除去具有第一分子量的物质，从而提供具有由所述截止物限定的分子量分布的渗透物。 然后，来自第一膜过滤的渗透物为 对与第一过滤器截止部分不同的第二过滤器截止件进行至少一个进一步的过滤步骤以提供具有由第一过滤器中的截止部分限定的分子量分布的截留物（浓缩物） 在所述第二过滤器中关闭。 在第一过滤单元下游的某个点对所需的含木质素馏分进行稀释。 从进一步的超滤中收集含有渗余物（浓缩物）的木质素用于进一步处理。
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