Canadian Patents Database / Patent 2780589 Summary

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(12) Patent: (11) CA 2780589
(54) English Title: SUSPENDED SOLIDS SEPARATION SYSTEMS AND METHODS
(54) French Title: SYSTEMES ET PROCEDES DE SEPARATION DE SOLIDES EN SUSPENSION
(51) International Patent Classification (IPC):
  • C12F 3/10 (2006.01)
  • C13B 20/16 (2011.01)
  • B01D 21/00 (2006.01)
(72) Inventors (Country):
  • KOHL, SCOTT (United States of America)
  • GALLOP, CHARLES C. (United States of America)
  • DIEKER, KURT A. (United States of America)
(73) Owners (Country):
  • ICM, INC. (United States of America)
(71) Applicants (Country):
  • ICM, INC. (United States of America)
(74) Agent: RIDOUT & MAYBEE LLP
(45) Issued: 2013-09-24
(22) Filed Date: 2012-06-21
(41) Open to Public Inspection: 2012-08-31
Examination requested: 2012-06-21
(30) Availability of licence: N/A
(30) Language of filing: English

(30) Application Priority Data:
Application No. Country Date
61/501,030 United States of America 2011-06-24

English 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.


French Abstract

Un procédé qui consiste à clarifier une vinasse dans un processeur mécanique pour produire un flux de solides fins en suspension et une vinasse clarifiée. Le procédé consiste en plus à amener la vinasse et la vinasse clarifiée, séparément ou dans un flux combiné, à un ou plusieurs évaporateurs afin de produire un ou plusieurs flux à teneur réduite de solides en suspension, chaque flux ayant une quantité réduite de solides en suspension et une viscosité inférieure à celle de flux de procédés ayant une teneur en solides totale comparable, mais une plus grande quantité de solides en suspension. Le procédé peut de plus consister à effectuer un traitement supplémentaire d'un ou de plusieurs des flux à teneur réduite de solides en suspension afin de produire de la biohuile.


Note: Claims are shown in the official language in which they were submitted.


WHAT IS CLAIMED IS:

1. A method comprising:
clarifying a thin stillage product in a mechanical processor to produce a fine

suspended solids stream and a clarified thin stillage; and
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 and
which contains a higher amount of suspended solids.
2. The method of claim 1, wherein asuspended solids stream comprises less
than about 10% by weight of the total solids content and the total solids
content is
between about 68% and about 72% by weight.
3. The method of claim 1, wherein at least one of the one or more reduced
suspended solids stream has a total solids content comprising suspended solids
and
dissolved solids in an amount between about 30% and about 90% by weight,
wherein the
suspended solids comprise less than 25% by weight of the total solids content.
4. The method of claim 1, wherein at least one of the one or more reduced
suspended solids stream is a clarified concentrated thin stillage, which
contains an
amount of bio-oil which is greater, by volume, than an amount of bio-oil
present in a
concentrated thin stillage which has not been clarified.
5. The method of claim 4, wherein the clarified concentrated thin stillage
is
subject to mechanical processing to produce a bio-oil product.
6. The method of claim 5, wherein the mechanical processing produces an
emulsion concentrate which is broken in an emulsion breaking reaction to
produce a bio-
oil phase.



7. The method of claim 5, wherein the mechanical processing also produces
a solids stream and a de-oiled clarified concentrated thin stillage product,
and further
comprises providing the de-oiled clarified concentrated thin stillage product
to the one or
more evaporators.
8. The method of claim 1, wherein at least one of the one or more reduced
suspended solids stream is a molasses product having a total solids content no
less than
about 45% by weight, wherein the suspended solids comprise less than 25% by
weight
down to 0% of the total solids content.
9. The method of claim 1, wherein substantially all of the clarified thin
stillage is provided to the thin stillage product.
10. The method of claim 1, further comprising:
combining at least a portion of the one or more reduced suspended solids
streams
with wet cake to produce a wet cake product containing reduced suspended
solids; and
drying the wet cake product to produce a distillers dried grain.
11. The method of claim 1, further comprising:
providing at least a portion of the one or more reduced suspended solids
streams to
a dryer to produce distiller's dried grain solubles.
12. The method of claim 1, further comprising drying the fine suspended
solids stream to produce dry distiller's solubles containing single cell
proteins.
13. The method of claim 1, wherein the thin stillage product is produced
from
low water extractable non-starch polysaccharide-containing plant biomass.
14. The method of claim 1, producing a product comprising a concentrated
thin stillage, a clarified thin stillage or a fine suspended solids stream.

41


15. The method of claim 1, producing a product comprising a fine suspended
solids stream, a molasses product, dry distiller's solubles, wet cake product,
distiller's
dry grain, distiller's dry grain solubles, or combinations thereof.
16. A method comprising:
clarifying a thin stillage product in a mechanical processor to produce a fine

suspended solids stream and a clarified thin stillage;
providing the thin stillage product and the clarified thin stillage,
separately or in a
combined stream, to one or more evaporators to produce at least two reduced
suspended
solids streams, each of the at least two streams 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; and
subjecting at least one of the at least two reduced suspended solids streams
to
mechanical processing to produce a bio-oil product.
17. The method of claim 16, wherein the at least two reduced suspended
solids streams comprise a stream containing a clarified concentrated thin
stillage and a
stream containing a molasses product, wherein the clarified concentrated thin
stillage is
subjected to the mechanical processing.
18. The method of claim 16, wherein the mechanical processing produces an
emulsion concentrate which is broken in an emulsion breaking reaction to
produce the
bio-oil phase.
19. The method of claim 17, wherein the molasses product contains two to
three times the amount of bio-oil per volume as compared to concentrated thin
stillage.
20. The method of claim 17, wherein the molasses product has between about
65% and about 75% total solids, by weight, and contains between about 8% and
about
12% bio-oil, by volume.
21. The method of claim 17, wherein the molasses product is to be sold,
combined with wet cake, and/or dried.

42


22. A method comprising:
clarifying a thin stillage product to produce one or more reduced suspended
solids
streams, each having a total solids content between about 30% and about 90% by
weight,
wherein the total solids content comprises suspended solids and dissolved
solids, and the
suspended solids comprise less than 25% by weight of the total solids content.
23. The method of claim 22, wherein at least one of the reduced suspended
solids product is subject to mechanical processing to produce a bio-oil
product.
24. The method of claim 23, wherein the mechanical processing produces an
emulsion concentrate which is broken in an emulsion breaking reaction to
produce the
bio-oil product.
25. A system comprising:
a clarifier for clarifying a thin stillage product to produce a fine suspended
solids
stream and clarified thin stillage; and
one or more evaporators for evaporating the thin stillage product and the
clarified
thin stillage to produce one or more reduced suspended solids streams, each
having a
reduced amount of suspended solids and a lower viscosity as compared to a
process
stream having a comparable total solids content but containing a higher amount
of
suspended solids.
26. The system of claim 25, further comprising a system control device
adapted to provide a quantity of thin stillage product for use downstream.
27. The system of claim 26, wherein the system control device is a holding
tank which is optionally connected with a heat source.
28. The system of claim 25, further comprising:
a dewatering system for dewatering a bio-oil containing process stream to
produce an emulsion concentrate containing entrapped bio-oil; and

43


an emulsion breaking system configured to at least partially break the
emulsion
concentrate with an emulsion breaking additive so that the entrapped bio-oil
is
released.
29. The system of claim 28, further comprising an alcohol production
facility.
30. The system of claim 29, wherein the alcohol production facility is an
ethanol production facility.
31. The system of claim 30, wherein the bio-oil is com oil.
32. A method for reducing a dryer load in a bio-product production facility

comprising:
clarifying a thin stillage product in a mechanical processor to produce a fine

suspended solids stream and a clarified thin stillage; and
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 and
which contains a higher amount of suspended solids, wherein the dryer load is
reduced as
compared to a method performed without a clarifying step.
33. A method for improving bio-product production yield comprising:
clarifying a thin stillage product in a mechanical processor to produce a fine

suspended solids stream and a clarified thin stillage; and
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 and
which contains a higher amount of suspended solids, wherein bio-product
production
yield is increased as compared to a method performed without a clarifying
step.

44


34. The method of claim 33 wherein the bio-product is a biofuel or
biochemical.
35. A method of reducing emissions in a bio-product production facility
comprising:
clarifying a thin stillage product in a mechanical processor to produce a fine

suspended solids stream and a clarified thin stillage; and
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 and
which contains a higher amount of suspended solids, wherein emissions from the
bio-
product production facility are reduced as compared to a method performed
without a
clarifying step.



A single figure which represents the drawing illustrating the invention.

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Admin Status

Title Date
(22) Filed 2012-06-21
Examination Requested 2012-06-21
(41) Open to Public Inspection 2012-08-31
(45) Issued 2013-09-24

Maintenance Fee

Description Date Amount
Last Payment 2016-12-28 $200.00
Next Payment if small entity fee 2018-06-21 $100.00
Next Payment if standard fee 2018-06-21 $200.00

Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following

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Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Request for Examination $800.00 2012-06-21
Filing $400.00 2012-06-21
Final $300.00 2013-07-08
Maintenance Fee - Patent - New Act 2 2014-06-23 $100.00 2014-05-22
Maintenance Fee - Patent - New Act 3 2015-06-22 $100.00 2015-04-01
Maintenance Fee - Patent - New Act 4 2016-06-21 $100.00 2016-01-11
Maintenance Fee - Patent - New Act 5 2017-06-21 $200.00 2016-12-28

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Abstract 2012-06-21 1 17
Description 2012-06-21 39 1,899
Claims 2012-06-21 6 194
Drawings 2012-06-21 7 153
Representative Drawing 2012-08-06 1 23
Cover Page 2012-09-07 1 56
Drawings 2013-02-04 7 173
Claims 2013-02-04 6 214
Description 2013-02-04 39 1,904
Representative Drawing 2013-09-04 1 22
Cover Page 2013-09-04 2 60
Prosecution-Amendment 2012-09-11 1 18
Prosecution-Amendment 2012-11-06 3 102
Prosecution-Amendment 2013-02-04 25 866
Correspondence 2013-07-08 1 50