Suspended solids separation

Patent metadata

Field	Value
Publication number	US-10093891-B2
Application number	US-201514620111-A
Country	US
Kind code	B2
Filing date	Feb 11, 2015
Priority date	Aug 6, 2010
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

A method that includes clarifying a thin stillage product in a mechanical processor to produce a fine suspended solids stream and a clarified thin stillage is provided. The method further includes providing the thin stillage product and the clarified thin stillage, separately or in a combined stream, to one or more evaporators to produce one or more reduced suspended solids streams, each stream having a reduced amount of suspended solids and a lower viscosity as compared to process streams having a comparable total solids content but containing a higher amount of suspended solids. The method can further included further processing of one or more of the reduced suspended solids streams to produce a bio-oil product.

First claim

What is claimed is:

1. A stillage product comprising fine suspended solids stream comprising:
a protein content of greater than 29% by weight on a dry-matter basis;
an acid detergent fiber content of less than 2% by weight on a dry-matter basis; and
a neutral detergent insoluble protein of less than 2.5% by weight on a dry-matter basis.

2. The stillage product fine suspended solids stream of claim 1 , further comprising a net energy for maintenance of about 1.5 Mcal/lb on a dry-matter basis.

3. The stillage product fine suspended solids stream of claim 1 , further comprising a net energy for gain of about 1 Mcal/lb on a dry-matter basis.

4. The stillage product fine suspended solids stream of claim 1 , further comprising a net energy for lactation of about 1.3 Mcal/lb on a dry-matter basis.

5. The stillage product fine suspended solids stream of claim 1 , further comprising an acid detergent fiber content of about 1.35% by weight on a dry-matter basis.

6. The stillage product fine suspended solids stream of claim 1 , further comprising a neutral detergent fiber content of about 5% by weight on a dry-matter basis.

7. The stillage product fine suspended solids stream of claim 1 , wherein the fat content comprises of about 24% by weight on a dry-matter basis.

8. The stillage product fine suspended solids stream of claim 1 , further comprising non-fibrous carbohydrates content of less than 40% by weight on a dry-matter basis.

9. The stillage product fine suspended solids stream of claim 1 , further comprising yeast content of less than 40% by weight.

10. The stillage product fine suspended solids stream of claim 1 , wherein the fat content comprises of about 20% by weight on a dry-matter basis.

11. A stillage product comprising fine suspended solids stream comprising:
a total digestible nutrients of about 125%;
a protein content of greater than 29% by weight on a dry-matter basis;
an acid detergent fiber content of less than 2% by weight on a dry-matter basis; and
a neutral detergent insoluble protein of less than 2.5% by weight on a dry-matter basis.

Assignees

• Icm Inc

Inventors

• Kohl Scott D
• Gallop Charles C
• Dieker Kurt A

Classifications

• Y02E50/30

  Fuel from waste, e.g. synthetic alcohol or diesel · CPC title

• B01D17/0217

  by centrifugal force · CPC title

• C10G2300/1018

  of animal origin · CPC title

• A23K10/37

  from waste material (from hydrolysates of wood or straw A23K10/32; from molasses A23K10/33) · CPC title

• C11B13/00

  Recovery of fats, fatty oils or fatty acids from waste materials · CPC title