发明名称 |
Systems capable of adding cellulosic biomass to a digestion unit operating at high pressures and associated methods for cellulosic biomass processing |
摘要 |
When processing cellulosic biomass, it may be desirable for a digestion unit to operate without being fully depressurized for process efficiency purposes. Methods for processing cellulosic biomass may comprise providing a biomass conversion system comprising a pressurization zone and a digestion unit that are operatively connected to one another; providing cellulosic biomass at a first pressure; introducing at least a portion of the cellulosic biomass into the pressurization zone and pressurizing the pressurization zone to a second pressure higher than the first pressure; after pressurizing the pressurization zone, transferring at least a portion of the cellulosic biomass from the pressurization zone to the digestion unit, which is at a third pressure that is less than or equal to the second pressure but higher than the first pressure; and digesting at least a portion of the cellulosic biomass in the digestion unit to produce a hydrolysate comprising soluble carbohydrates. |
申请公布号 |
US8945243(B2) |
申请公布日期 |
2015.02.03 |
申请号 |
US201113332322 |
申请日期 |
2011.12.20 |
申请人 |
Shell Oil Company |
发明人 |
Powell Joseph Broun;Chheda Juben Nemchand;Flowers Thomas Lamar |
分类号 |
C10L1/00 |
主分类号 |
C10L1/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method comprising:
providing a biomass conversion system comprising a pressurization zone and a digestion unit that are operatively connected to one another; providing a cellulosic biomass at a first pressure; introducing at least a portion of the cellulosic biomass into the pressurization zone and then pressurizing the pressurization zone to a second pressure that is higher than the first pressure; after pressurizing the pressurization zone, transferring at least a portion of the cellulosic biomass from the pressurization zone to the digestion unit, which is at a third pressure that is less than or equal to the second pressure but higher than the first pressure; and digesting at least a portion of the cellulosic biomass in the digestion unit to produce a hydrolysate comprising soluble carbohydrates within a liquor phase. |
地址 |
Houston TX US |