Processing materials
US-9453250-B2 · Sep 27, 2016 · US
Processing materials
US9631208B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9631208-B2 |
| Application number | US-201615248224-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 26, 2016 |
| Priority date | Jan 20, 2010 |
| Publication date | Apr 25, 2017 |
| Grant date | Apr 25, 2017 |
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- Title
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Abstract
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Biomass feedstocks (e.g., plant biomass, animal biomass, and municipal waste biomass) are processed to produce useful products, such as fuels. For example, systems are described that can convert feedstock materials to a sugar solution, which can then be fermented to produce ethanol. Biomass feedstock is saccharified in a vessel by operation of a jet mixer, the vessel also containing a liquid medium and a saccharifying agent.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: saccharifying an electron beam irradiated lignocellulosic feedstock in a vessel to form a sugar solution comprising glucose and xylose, removing xylose from the sugar solution; and fermenting the sugar solution to convert glucose to alcohol after removal of the xylose. 2. The method according to claim 1 further comprising distillation of the alcohol. 3. The method according to claim 2 wherein distillation comprises vacuum distillation. 4. The method according to claim 1 , wherein the alcohol comprises ethanol. 5. The method according to claim 1 , wherein saccharifying comprises enzymatic saccharification. 6. The method according to claim 1 further comprising monitoring the glucose level in the vessel during saccharification. 7. The method of claim 1 further comprising mixing contents of the vessel with a jet mixer during saccharification. 8. The method according to claim 1 , wherein the feedstock has a bulk density of less than about 0.75 g/cm 3 .
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Classifications
produced by the action of a carbohydrase {(EC 3.2.x)}, e.g. by alpha-amylase {, e.g. by cellulase, hemicellulase} · CPC title
- C12P7/14Primary
Multiple stages of fermentation; Multiple types of microorganisms or re-use of microorganisms · CPC title
containing a hydroxy group · CPC title
Fermentation products obtained from optionally pretreated or hydrolyzed cellulosic or lignocellulosic material as the carbon source · CPC title
Monosaccharides (2-ketogulonic acid C12P7/60) · CPC title
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Frequently asked questions
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- What does patent US9631208B2 cover?
- Biomass feedstocks (e.g., plant biomass, animal biomass, and municipal waste biomass) are processed to produce useful products, such as fuels. For example, systems are described that can convert feedstock materials to a sugar solution, which can then be fermented to produce ethanol. Biomass feedstock is saccharified in a vessel by operation of a jet mixer, the vessel also containing a liquid me…
- Who is the assignee on this patent?
- Xyleco Inc
- What technology area does this patent fall under?
- Primary CPC classification C12P7/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 25 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).