CA1085226A - Drive means for desolventizer toaster - Google Patents
Drive means for desolventizer toasterInfo
- Publication number
- CA1085226A CA1085226A CA255,040A CA255040A CA1085226A CA 1085226 A CA1085226 A CA 1085226A CA 255040 A CA255040 A CA 255040A CA 1085226 A CA1085226 A CA 1085226A
- Authority
- CA
- Canada
- Prior art keywords
- steam
- pressure steam
- desolventizing
- turbine
- vessel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
- C11B1/108—Production of fats or fatty oils from raw materials by extracting after-treatment, e.g. of miscellae
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/14—Evaporating with heated gases or vapours or liquids in contact with the liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0215—Solid material in other stationary receptacles
- B01D11/0223—Moving bed of solid material
- B01D11/0234—Moving bed of solid material using other slow rotating arms or elements, whereby the general transport direction of the solids is not parallel to the rotation axis, e.g. perpendicular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0215—Solid material in other stationary receptacles
- B01D11/0223—Moving bed of solid material
- B01D11/0242—Moving bed of solid material in towers, e.g. comprising contacting elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Abstract of the Disclosure There is disclosed a desolventizer-toaster having means for admitting sparge steam and shaft means on which sweeps or agitating arms are mounted for agitating the contents. The means for admitting sparge steam may be via sparger elements mounted in the agitating arms or via holes in one or more of the trays of the desolventizer toaster. The shaft is rotatably driven by a steam turbine with sparge steam requirements for the desolven-tizer toaster provided, in part, by low pressure steam withdrawn from the turbine.
Description
This invention relates to a process and apparatus for heating a bulk material to remove recoverable vaporizable components therefrom, and more particularly to a process and apparatus for desolventizing and toasting or cooking solvent-extracted materials, particularly solvent-extracted oleaginous seed material, Oleaginous seed materials, such as soybeans, cotton seeds, peanuts, sesame seeds, sunflower seeds, rapeseed, and the like contain proteinaceous matter of a highly nutritious nature.
Soybeans for example, after oil extraction, have been treated to recover the proteinaceous matter for use in diver~e industrial processes, e. g. in the paper, plastic and food industries. Without limitations as to other uses, the invention will be herein particularly ;~
described in connection with the extraction of oil from soybeans.
In the processing of seeds to extract OL~ by solvent extraction, the seeds are crushed or milled into meal or flakes or otherwise fragmentized and treated with a solvent to extract the oilJ
leaving meal in which vaporizable solvent remains. By heating the meal, using steam both indirectly through a heated surface and/or directly by steam contacting the meal, the solvent is vaporized while the meal itself is cool~ed or toasted to produce an edible substance.
Apparatus for vaporizing the solvent so that it might be recovered ~^
while simultaneously and/or subsequentia y toasting the extracted seed is well known in the art as illustrated, for example, in United States Patents Nos. 1,112,128; 2, 577, 010; 2, 585, 793; 2, 695,459;
'; : ! ' ,, ;;.; i', ,, , ~ ' ~ ' ' ' '' "" i'~' ' ','', :' ;., ~L0~352Z~i
Soybeans for example, after oil extraction, have been treated to recover the proteinaceous matter for use in diver~e industrial processes, e. g. in the paper, plastic and food industries. Without limitations as to other uses, the invention will be herein particularly ;~
described in connection with the extraction of oil from soybeans.
In the processing of seeds to extract OL~ by solvent extraction, the seeds are crushed or milled into meal or flakes or otherwise fragmentized and treated with a solvent to extract the oilJ
leaving meal in which vaporizable solvent remains. By heating the meal, using steam both indirectly through a heated surface and/or directly by steam contacting the meal, the solvent is vaporized while the meal itself is cool~ed or toasted to produce an edible substance.
Apparatus for vaporizing the solvent so that it might be recovered ~^
while simultaneously and/or subsequentia y toasting the extracted seed is well known in the art as illustrated, for example, in United States Patents Nos. 1,112,128; 2, 577, 010; 2, 585, 793; 2, 695,459;
'; : ! ' ,, ;;.; i', ,, , ~ ' ~ ' ' ' '' "" i'~' ' ','', :' ;., ~L0~352Z~i
2, 806, 297;3, 018, 564; and 3, 359, 644.
As disclosed in these patents, the material from which solvent is to be removed progresses downwardly through a column which has spaced horizontal plates therein dividing the interior of the column into a vertical series of compartments. In these compartments the material is heated and agitated and the finished material discharged ~
from the bottom of the column. Solvent is removed as an overhead ;
vapor which is then condensed.
Present desolventizing practice is to introduce steam into the desolventizer column directly from a boiler via suitable piping including valves, orifices, etc., to reduce the pressure of the - steam to that necessary for sparging the bed to accomplish desolven-tizing operations. An electric motor is the power source for rotating the sweep arms using sultable speed reduction devices. Typically, steam is supplied to the plant at pressures from 100 to 200 psig. since steam is needed for other operations at such pressures, for example the heating trays of the desolventizer, steam jet ejectors, etc. and at a pressure higher than necessary for sparge steam in the de-solventizer. In the desolventi~er, steam flows into the flakes on the trays via control valves, orifices, meters, etc., with holes being provided in the sparge tray, the sparge arms or similar devices for contact with the flake mass. During steam flow, steam pressure is reduced across the restrictions imposed by such orifices, valves~
meters, etc. to the lower pressure necessary to flow through the holes in the sparging device.
.... ; - . .. - , . ~ . ... .. ... . ~.
~ 352;~G
Objects of this invention are achieved by driving with steam turbine the rotating elements of a desolventizer column with the sparge steam requirement being provided, in part, by low pressure steam withdrawn from the steam turbine.
Thus, in accordance with the present teachings, an improvement is provided in a process for desolventizing a solvent extracted material in a desolventizing vessel formed of a vertical column having a shaft and provided with a plurality of heated trays which define a plurality of zones wherein each zone is provided with sparger arms for introducing low pressure steam into the desolventizing vessel and wherein a vapor includ-ing vaporized solvent and desolventized extracted material are withdrawn from the desolventizing vessel. The improvement which is provided comprises introducing high pressure steam into a steam turbine to provide a source of power for rotating the shaft and passing low pressure steam from the turbine to the desolventizing vessel to provide a portion of the steam requirement for the sparger arms.
In accordance with a further e~bodiment an improved apparatus is provided for desolventizing with low pressure steam a solvent extracted material in a desolventizing vessel formed of a vertical column divided into a plurality of sub-zones by heated trays and wherein the vessel is provided with a shaft on which is disposed ;
a plurality of sparger arms and means are provided for withdraw-ing vaporized solvent and desolventi~ed extracted material. The improvement which is provided includes a turbine drive means for rotating the shaft, a source of high pressure steam for driving the turbine drive means and conduit means for withdrawing low pressure steam from the turbine means and for passing the steam to the vessel to provide sparger steam requirements therefor.
~ ~ -3-522g~
A better understanding of the present invention as well as other objects and advantages thereof will become apparent upon consideration of the detailed disclosure thereof, especially when taken with the accompanying schematic drawing.
It is to be understood that equipment such as passages, valve~, indicators, and the like have been omitted from the drawing to facilitate the description thereof and the placing of such equipment at appropriate places is deemed to be within the scope of those ~killed in the art. In the drawing, the component parts of my nav el proces9 and apparatus includes a desolventizer column, generally indicated as 10, such as described in U.S, Patent No. 3, 359, 649, a turbine 12 and a flash drum 14.
The desolventizer 10 includes a hollow shell 16 generally cyllndrical in shape having a conical shaped upper portion forming a vertical column which is divided horizontally by steam-heated trays 18 into a vertical series of compartments 20. Each of the trays 18 has an opening or chute (not shown) through which bulk material may be passed dowQwardly from one compartment to the -next in a controlled manner. There is a vertical shaft 22 extending up the center of the column 16. In the lower compartments the shaft 22 is provided with arms 24 which sweep around over the trays 18 to agitate the material whereas in the uppermost compartment, or some of them, the shaft 22 is provided with rotating sparger , , , 3û
B -3a-. . : . i ~:,: : . , , " ~ : .
522~;
arms 2B. The shaft 22 is driven via a reduction gear 28 by the turbine 12, Steam is introduced by a steam supply conduit 30 through a swivel joint (not shown) into the central shaft 22 for discharge through the sparger arms 26. The top of the vertical column 16 above the uppermost compartment is provided with a dome-shaped portion 32 which is enclosed by a roof portion 34.
Material to be treated is introduced into the desolventizer 10 through an inlet connection 36.
The desolventizer 10 is provided witha vapor out~
let 38 and a scrubber connection 40. A vertical duct 42 is disposed alongside the shell 16 in contiguous relationship thereto for the purpose described in the aforementioned U. S. Patent No. 3, 359, 649.
In operation, high pressure steam, e. g. at a pressure of from 100 to 200 psig. in line 42 is introduced into the turbine 12 and expanded to a pressure of about 15 to 25 psig. to produce the power required to drive the shaft 22 of the desolventizer 10 via the reduction gear 28. Unexpectedly, a turbine operating within such pressure range requires less steam to produce the power re- ~ r quired for rotation than is required for sparging the solvent wet soybean material to be treated. Low pressure steam is withdrawn from turbine 12 by line 44 and is introduced into flash drum 14 from which low pressure steam is withdrawn by line 46 and introduced into the steam supply conduit 30 to provide the sparging steam re-quired. The flash drum 14 permits an opportunity for some vaporization of condensate by heat interchange with higher pressure steam make up as well as removing condensate from Low pressure discharge of the steam turbine 12.
, .;: i . , . .
~3522~
Steam (high pressure) for the heated trays 18 is introduced into the trays in a manner known to those skilled in the art. A solvent vapor stream is withdrawn from the desolventizer 10 via vapor outlet 38 for the subsequent recovery of solvent there-from (not shown) with desolventizer solids being withdrawn by chute 48 for processing (not shown) in a rnanner known to those skilled in the art.
High pressure conden9ate from the heated trays 18 is passed by line 50 via a trap 52 to flash tank 14 as an additional source of low pressure steam for sparging. Such condensate in line 50 is mixed in steam drum 14 with turbine outlet steam in line 44 and high pressure steam in line 54, after expansion across a valve - 56. As hereinabove discussed, the low pressure steam requirementsfor ~parging of the material is in excess of that withdrawn from the turbine thereby necessitating the introduction of additional low pressure steam by line 54 into flash drum 14 after expansion of - high pressure steam across valve 56.
Examples of the Invention Each of the following Tables I and II illustrate the benefits and expected steam usage for three plant rates for processing soybeans at 100 and 150 psig., respectively high pressure steam a va ilability.
.
. , , :
L~522~
a ~ m 2 ~ m ~
As disclosed in these patents, the material from which solvent is to be removed progresses downwardly through a column which has spaced horizontal plates therein dividing the interior of the column into a vertical series of compartments. In these compartments the material is heated and agitated and the finished material discharged ~
from the bottom of the column. Solvent is removed as an overhead ;
vapor which is then condensed.
Present desolventizing practice is to introduce steam into the desolventizer column directly from a boiler via suitable piping including valves, orifices, etc., to reduce the pressure of the - steam to that necessary for sparging the bed to accomplish desolven-tizing operations. An electric motor is the power source for rotating the sweep arms using sultable speed reduction devices. Typically, steam is supplied to the plant at pressures from 100 to 200 psig. since steam is needed for other operations at such pressures, for example the heating trays of the desolventizer, steam jet ejectors, etc. and at a pressure higher than necessary for sparge steam in the de-solventizer. In the desolventi~er, steam flows into the flakes on the trays via control valves, orifices, meters, etc., with holes being provided in the sparge tray, the sparge arms or similar devices for contact with the flake mass. During steam flow, steam pressure is reduced across the restrictions imposed by such orifices, valves~
meters, etc. to the lower pressure necessary to flow through the holes in the sparging device.
.... ; - . .. - , . ~ . ... .. ... . ~.
~ 352;~G
Objects of this invention are achieved by driving with steam turbine the rotating elements of a desolventizer column with the sparge steam requirement being provided, in part, by low pressure steam withdrawn from the steam turbine.
Thus, in accordance with the present teachings, an improvement is provided in a process for desolventizing a solvent extracted material in a desolventizing vessel formed of a vertical column having a shaft and provided with a plurality of heated trays which define a plurality of zones wherein each zone is provided with sparger arms for introducing low pressure steam into the desolventizing vessel and wherein a vapor includ-ing vaporized solvent and desolventized extracted material are withdrawn from the desolventizing vessel. The improvement which is provided comprises introducing high pressure steam into a steam turbine to provide a source of power for rotating the shaft and passing low pressure steam from the turbine to the desolventizing vessel to provide a portion of the steam requirement for the sparger arms.
In accordance with a further e~bodiment an improved apparatus is provided for desolventizing with low pressure steam a solvent extracted material in a desolventizing vessel formed of a vertical column divided into a plurality of sub-zones by heated trays and wherein the vessel is provided with a shaft on which is disposed ;
a plurality of sparger arms and means are provided for withdraw-ing vaporized solvent and desolventi~ed extracted material. The improvement which is provided includes a turbine drive means for rotating the shaft, a source of high pressure steam for driving the turbine drive means and conduit means for withdrawing low pressure steam from the turbine means and for passing the steam to the vessel to provide sparger steam requirements therefor.
~ ~ -3-522g~
A better understanding of the present invention as well as other objects and advantages thereof will become apparent upon consideration of the detailed disclosure thereof, especially when taken with the accompanying schematic drawing.
It is to be understood that equipment such as passages, valve~, indicators, and the like have been omitted from the drawing to facilitate the description thereof and the placing of such equipment at appropriate places is deemed to be within the scope of those ~killed in the art. In the drawing, the component parts of my nav el proces9 and apparatus includes a desolventizer column, generally indicated as 10, such as described in U.S, Patent No. 3, 359, 649, a turbine 12 and a flash drum 14.
The desolventizer 10 includes a hollow shell 16 generally cyllndrical in shape having a conical shaped upper portion forming a vertical column which is divided horizontally by steam-heated trays 18 into a vertical series of compartments 20. Each of the trays 18 has an opening or chute (not shown) through which bulk material may be passed dowQwardly from one compartment to the -next in a controlled manner. There is a vertical shaft 22 extending up the center of the column 16. In the lower compartments the shaft 22 is provided with arms 24 which sweep around over the trays 18 to agitate the material whereas in the uppermost compartment, or some of them, the shaft 22 is provided with rotating sparger , , , 3û
B -3a-. . : . i ~:,: : . , , " ~ : .
522~;
arms 2B. The shaft 22 is driven via a reduction gear 28 by the turbine 12, Steam is introduced by a steam supply conduit 30 through a swivel joint (not shown) into the central shaft 22 for discharge through the sparger arms 26. The top of the vertical column 16 above the uppermost compartment is provided with a dome-shaped portion 32 which is enclosed by a roof portion 34.
Material to be treated is introduced into the desolventizer 10 through an inlet connection 36.
The desolventizer 10 is provided witha vapor out~
let 38 and a scrubber connection 40. A vertical duct 42 is disposed alongside the shell 16 in contiguous relationship thereto for the purpose described in the aforementioned U. S. Patent No. 3, 359, 649.
In operation, high pressure steam, e. g. at a pressure of from 100 to 200 psig. in line 42 is introduced into the turbine 12 and expanded to a pressure of about 15 to 25 psig. to produce the power required to drive the shaft 22 of the desolventizer 10 via the reduction gear 28. Unexpectedly, a turbine operating within such pressure range requires less steam to produce the power re- ~ r quired for rotation than is required for sparging the solvent wet soybean material to be treated. Low pressure steam is withdrawn from turbine 12 by line 44 and is introduced into flash drum 14 from which low pressure steam is withdrawn by line 46 and introduced into the steam supply conduit 30 to provide the sparging steam re-quired. The flash drum 14 permits an opportunity for some vaporization of condensate by heat interchange with higher pressure steam make up as well as removing condensate from Low pressure discharge of the steam turbine 12.
, .;: i . , . .
~3522~
Steam (high pressure) for the heated trays 18 is introduced into the trays in a manner known to those skilled in the art. A solvent vapor stream is withdrawn from the desolventizer 10 via vapor outlet 38 for the subsequent recovery of solvent there-from (not shown) with desolventizer solids being withdrawn by chute 48 for processing (not shown) in a rnanner known to those skilled in the art.
High pressure conden9ate from the heated trays 18 is passed by line 50 via a trap 52 to flash tank 14 as an additional source of low pressure steam for sparging. Such condensate in line 50 is mixed in steam drum 14 with turbine outlet steam in line 44 and high pressure steam in line 54, after expansion across a valve - 56. As hereinabove discussed, the low pressure steam requirementsfor ~parging of the material is in excess of that withdrawn from the turbine thereby necessitating the introduction of additional low pressure steam by line 54 into flash drum 14 after expansion of - high pressure steam across valve 56.
Examples of the Invention Each of the following Tables I and II illustrate the benefits and expected steam usage for three plant rates for processing soybeans at 100 and 150 psig., respectively high pressure steam a va ilability.
.
. , , :
L~522~
a ~ m 2 ~ m ~
3~, ~ ~0 0 0 ~ o a~ ~ o o o v ~ . ., h _ ~ O O O h _~ ~ o o O
h : ~
C~ Q~ '~ .
U~ ~ ..
O O O U~ O I :
~ ~ O ~ N a3 ~ I
m C h _ ~ ~ ~ m~ C ~
~ a~ .
~ . ~ - .
~ ~ h I
h ~ ~ o o o ~ ~ ~ O o O
~ ~ ~ 1~ 4 a) ~ ) d~
Cl~ ~ C`J U~ b ~ N
--I N
~ ~ S S ~
,~,,_ ,C ,,~ -~ C - C C o a~ o o o :~ c c c~
r~ ~ ~ o O o a ' ,:
~,d= ~~
c ~, O
h u~ 11 . h c~
.. . . . . . ... .. . ... . ... .
: ` . .
~35;~26 ..
Itwill be appreciated that an existing desolventizing unit may be modified in accordance with the present invention, i. e., the existing electric motor including starter, wiring and the like is replaced with a steam turbine, associated piping, flash tank, etc.
with instrumentation being essentially similar. Safety of a plant is enhanced since a steam turbine drive is inherently less hazardous than an electric motor. AdditionaLly, varied rotational speed rates of the arms may be readily accomplished by adjusting the governor -for the turbine thereby providing capabilities for altering process conditions for treating materials which change as the season between harvest progresses.
As hereinabove mentioned, electrical power require- -ments are eliminated with no increase in steam requirements.
Additionally, the introduction of lower pressure steam for sparging effects a reduction in superheat to be given up before condensing into the extracted flakes as compared with high pressure steam reduced in pressure for use via the sparger means thereby making more effective the transfer of heat between condensing water and vaporizing solvent.
While the embodiment of the present invention has been discussed with reference to a desolventizer-toaster including rotating sparger members, it will be understood that the principle of the present invention is applicable to any form of desolventizer-toaster having a shaft including rotating members wherein steam is directly introduced into the meal, e. g., by perforated trays as disclosed in U. S. Patent No. 3, 018, 564 to Kruse. Additionally, 1~352~
:` ,:
it will be understood that turbine efficiency may be varied with regard to variations in steam presssure as well as turbine discharge pressure, etc. as is well known to those skilled in the art.
' ~ ~
h : ~
C~ Q~ '~ .
U~ ~ ..
O O O U~ O I :
~ ~ O ~ N a3 ~ I
m C h _ ~ ~ ~ m~ C ~
~ a~ .
~ . ~ - .
~ ~ h I
h ~ ~ o o o ~ ~ ~ O o O
~ ~ ~ 1~ 4 a) ~ ) d~
Cl~ ~ C`J U~ b ~ N
--I N
~ ~ S S ~
,~,,_ ,C ,,~ -~ C - C C o a~ o o o :~ c c c~
r~ ~ ~ o O o a ' ,:
~,d= ~~
c ~, O
h u~ 11 . h c~
.. . . . . . ... .. . ... . ... .
: ` . .
~35;~26 ..
Itwill be appreciated that an existing desolventizing unit may be modified in accordance with the present invention, i. e., the existing electric motor including starter, wiring and the like is replaced with a steam turbine, associated piping, flash tank, etc.
with instrumentation being essentially similar. Safety of a plant is enhanced since a steam turbine drive is inherently less hazardous than an electric motor. AdditionaLly, varied rotational speed rates of the arms may be readily accomplished by adjusting the governor -for the turbine thereby providing capabilities for altering process conditions for treating materials which change as the season between harvest progresses.
As hereinabove mentioned, electrical power require- -ments are eliminated with no increase in steam requirements.
Additionally, the introduction of lower pressure steam for sparging effects a reduction in superheat to be given up before condensing into the extracted flakes as compared with high pressure steam reduced in pressure for use via the sparger means thereby making more effective the transfer of heat between condensing water and vaporizing solvent.
While the embodiment of the present invention has been discussed with reference to a desolventizer-toaster including rotating sparger members, it will be understood that the principle of the present invention is applicable to any form of desolventizer-toaster having a shaft including rotating members wherein steam is directly introduced into the meal, e. g., by perforated trays as disclosed in U. S. Patent No. 3, 018, 564 to Kruse. Additionally, 1~352~
:` ,:
it will be understood that turbine efficiency may be varied with regard to variations in steam presssure as well as turbine discharge pressure, etc. as is well known to those skilled in the art.
' ~ ~
Claims (11)
1. In a process for desolventizing a solvent extracted material in a desolventizing vessel formed of a vertical column having a shaft and provided with a plurity of heated trays defining a plurality of zones and wherein each zone is provided with sparger arms for introducing low pressure steam into said desolventizing vessel and wherein a vapor including vaporized solvent and desolventized extracted material are withdrawn from said desolventizing vessel, the improvement comprising:
introducing high pressure steam into a steam turbine to provide the source of power for rotating said shaft; and passing low pressure steam from said turbine to said desolventizing vessel to provide a portion of the steam requirements for said sparger arms.
introducing high pressure steam into a steam turbine to provide the source of power for rotating said shaft; and passing low pressure steam from said turbine to said desolventizing vessel to provide a portion of the steam requirements for said sparger arms.
2. The process as defined in Claim 1 wherein said low pressure steam withdrawn from said turbine is passed to a flash drum and said low pressure steam for sparging is withdrawn from said flash drum.
3. The process as defined in Claim 2 wherein high pressure steam is throttled to said flash drum.
4. The process as defined in Claim 2 wherein said material is passed in indirect contact with steam.
5. The process as defined in Claim 4 wherein high pressure steam condensate is withdrawn from said indirect contact to provide a portion of said sparger steam requirement after being throttled into said flash drum.
6. An improved apparatus for desolventizing with low pressure steam a solvent extracted material in a desolventizing vessel formed of a vertical column and divided into a plurality of sub-zones by heated trays and wherein said vessel is provided with a shaft on which is disposed a plurality of spargers arms, and wherein there are provided means for withdrawing vaporized solvent and desolventized extracted material, the improvement characterized by:
a turbine drive means for rotating said shaft;
a source of high pressure steam for driving said turbine drive means; and conduit means for withdrawing low pressure steam from said; turbine means and for passing said steam to said vessel to provide sparger steam requirements therefor.
a turbine drive means for rotating said shaft;
a source of high pressure steam for driving said turbine drive means; and conduit means for withdrawing low pressure steam from said; turbine means and for passing said steam to said vessel to provide sparger steam requirements therefor.
7. The improved apparatus as defined in Claim 6 wherein uppermost arms of said plurality of arms includes sparger devices.
8. The improved apparatus as defined in Claim 6 wherein said conduit means includes a flash drum.
9. The improved apparatus as defined in Claim 6 wherein one or more of said uppermost trays include orifices for admitting sparger steam.
10. The improved apparatus as defined in Claim 8 and including a second conduit means for passing high pressure steam to said flash drum.
11. The improved apparatus as defined in Claim 6 including a third conduit means for withdrawing a high pressure steam condensate from said heated trays and for passing and throttling said condensate into said flash drum.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63620575A | 1975-11-28 | 1975-11-28 | |
| US636,205 | 1975-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1085226A true CA1085226A (en) | 1980-09-09 |
Family
ID=24550902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA255,040A Expired CA1085226A (en) | 1975-11-28 | 1976-06-16 | Drive means for desolventizer toaster |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5270983A (en) |
| AU (1) | AU508180B2 (en) |
| BE (1) | BE848701A (en) |
| BR (1) | BR7604989A (en) |
| CA (1) | CA1085226A (en) |
| DE (1) | DE2635049A1 (en) |
| FR (1) | FR2336153A1 (en) |
| GB (1) | GB1541707A (en) |
| NL (1) | NL7607783A (en) |
| SE (1) | SE7608212L (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7156981B2 (en) * | 1999-01-25 | 2007-01-02 | Bio Extraction Limited | ITFM extraction of oil seeds |
| CN112717545B (en) * | 2020-12-09 | 2022-07-29 | 江尔成 | Chinese medicinal material solution extraction processing device and Chinese patent medicine preparation method |
| CN114133947A (en) * | 2021-11-08 | 2022-03-04 | 中国平煤神马集团平顶山京宝焦化有限公司 | Coal tar distillation device |
| CN117848009B (en) * | 2024-03-06 | 2024-05-07 | 诸城兴贸玉米开发有限公司 | Corn powder dryer for agricultural product treatment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE378829A (en) * | ||||
| US3126285A (en) * | 1964-03-24 | Method of desolventizing and toasting soybean meal | ||
| FR1345401A (en) * | 1963-01-16 | 1963-12-06 | Metallgesellschaft Ag | Method and device for removing solvent from a product previously subjected to extraction |
| US3359649A (en) * | 1966-02-24 | 1967-12-26 | Blaw Knox Co | Apparatus for the heating of bulk material and recovery of vaporizable product therefrom |
| US3966982A (en) * | 1973-06-18 | 1976-06-29 | Dravo Corporation | Process and apparatus for treating oleaginous seed material |
-
1976
- 1976-06-16 CA CA255,040A patent/CA1085226A/en not_active Expired
- 1976-06-25 AU AU15287/76A patent/AU508180B2/en not_active Expired
- 1976-07-05 GB GB27803/76A patent/GB1541707A/en not_active Expired
- 1976-07-14 NL NL7607783A patent/NL7607783A/en not_active Application Discontinuation
- 1976-07-19 SE SE7608212A patent/SE7608212L/en unknown
- 1976-07-30 BR BR7604989A patent/BR7604989A/en unknown
- 1976-08-04 DE DE19762635049 patent/DE2635049A1/en not_active Withdrawn
- 1976-11-24 BE BE172658A patent/BE848701A/en not_active IP Right Cessation
- 1976-11-26 FR FR7635778A patent/FR2336153A1/en not_active Withdrawn
- 1976-11-26 JP JP51141372A patent/JPS5270983A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5270983A (en) | 1977-06-13 |
| BR7604989A (en) | 1977-08-09 |
| FR2336153A1 (en) | 1977-07-22 |
| AU1528776A (en) | 1978-01-05 |
| NL7607783A (en) | 1977-06-01 |
| SE7608212L (en) | 1977-05-29 |
| GB1541707A (en) | 1979-03-07 |
| AU508180B2 (en) | 1980-03-13 |
| BE848701A (en) | 1977-03-16 |
| DE2635049A1 (en) | 1977-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |