发明名称 |
Method and systems for processing lignin during hydrothermal digestion of cellulosic biomass solids while producing a monohydric alcohol feed |
摘要 |
Digestion of cellulosic biomass solids may be complicated by release of lignin therefrom. Methods for digesting cellulosic biomass solids may comprise: providing cellulosic biomass solids in the presence of a digestion solvent, molecular hydrogen, and a slurry catalyst capable of activating molecular hydrogen; at least partially converting the cellulosic biomass solids into a phenolics liquid phase comprising lignin, an aqueous phase comprising a glycol derived from the cellulosic biomass solids, and an optional light organics phase; wherein at least a portion of the slurry catalyst accumulates in the phenolics liquid phase as it forms; combining the glycol with the phenolics liquid phase, thereby forming a combined phase; and heating the combined phase in the presence of molecular hydrogen; wherein heating the combined phase reduces the viscosity of the phenolics liquid phase and transforms at least a portion of the glycol into a monohydric alcohol. |
申请公布号 |
US9376355(B2) |
申请公布日期 |
2016.06.28 |
申请号 |
US201314067282 |
申请日期 |
2013.10.30 |
申请人 |
Shell Oil Company |
发明人 |
Powell Joseph Broun;Johnson Kimberly Ann |
分类号 |
C07C27/04;C10G1/00;C10G1/06;C10G3/00;D21C3/20;C07C29/132;C07C29/60;C07C41/18 |
主分类号 |
C07C27/04 |
代理机构 |
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代理人 |
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主权项 |
1. A method comprising:
providing cellulosic biomass solids in the presence of a digestion solvent, molecular hydrogen, and a slurry catalyst capable of activating molecular hydrogen; at least partially converting the cellulosic biomass solids into a phenolics liquid phase comprising lignin, an aqueous phase comprising a glycol derived from the cellulosic biomass solids, and an optional light organics phase; wherein at least a portion of the slurry catalyst accumulates in the phenolics liquid phase as it forms; combining the glycol with the phenolics liquid phase, thereby forming a combined phase; and heating the combined phase in the presence of molecular hydrogen; wherein heating the combined phase reduces the viscosity of the phenolics liquid phase and transforms at least a portion of the glycol into a monohydric alcohol. |
地址 |
Houston TX US |