AU7528100A - Method and installation for storing organic products - Google Patents
Method and installation for storing organic products Download PDFInfo
- Publication number
- AU7528100A AU7528100A AU75281/00A AU7528100A AU7528100A AU 7528100 A AU7528100 A AU 7528100A AU 75281/00 A AU75281/00 A AU 75281/00A AU 7528100 A AU7528100 A AU 7528100A AU 7528100 A AU7528100 A AU 7528100A
- Authority
- AU
- Australia
- Prior art keywords
- low
- storage compartment
- handling
- agricultural products
- products
- 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.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/16—Preserving with chemicals
- A23B9/18—Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/16—Preserving with chemicals
- A23B9/18—Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B9/20—Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/20—Auxiliary treatments, e.g. aerating, heating, humidifying, deaerating, cooling, de-watering or drying, during loading or unloading; Loading or unloading in a fluid medium other than air
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Mechanical Engineering (AREA)
- Storage Of Harvested Produce (AREA)
Description
WO 01/23288 - 1 - PCT/FR00/02593 METHOD AND INSTALLATION FOR STORING ORGANIC PRODUCTS The present invention relates to a method and an installation for storing agricultural products in a 5 silo containing at least one storage compartment, in which at least one step of handling the organic products in at least one essentially closed space in the silo is carried out Agricultural products, in particular grain 10 products such as wheat, barley, corn, rye, sunflower or peas are commonly stored in silos. The latter consist of vertical containers filled from an inlet formed in their upper part. An outlet provided in the lower part makes it possible to collect the grain after storage. 15 Each vertical container is referred to as a storage compartment. In current installations, the grain is stored under ambient atmospheric conditions. The temperature of the grain when harvested is often of the order of 20 30 0 C. This temperature is thus commonly encountered in silos. Even after a prolonged period of intense cold, the temperature in the silos still remains above 20 0 C. Under the effect of heat, biological phenomena take place. They lead to fermentation and/or oxidation 25 of the agricultural products being stocked. Furthermore, heat promotes germination of the grain if the drying is incomplete. Fermentation phenomena can generate gas such as methane, which are inflammable under certain 30 conditions. These inflammable gases are produced in the form of continuous emissions and give rise to gas pockets. Further, phenomena of the firedamp type can also be encountered in grain silos. They result from 35 the presence of clouds of organic dust formed when handling the grain. Current methods of storage in silos with - 2 ambient air thus lead to three major drawbacks. Firstly, the risks of fire and explosion are high because of the emission of flammable gases, as explained above. 5 These risks are, in particular, very much present during handling of the grain which, once set in motion, releases a great deal of dust forming explosive clouds. In the closed spaces in the silo, even an incipient fire is very difficult to fight, and will 10 then propagate throughout the silo and destroy it by explosion. Furthermore, phenomena of germination, fermentation and oxidation of the grain lead to a progressive deterioration in the quality of the 15 product. Lastly, the presence of agricultural products gathered together in a single site promotes the growth of insects or arachnids, the growth of which needs to be prevented by implementing chemical treatments whose 20 use is detrimental to the environment and health. Application FR-A-2 688 382 describes a method for preserving cereals in a silo. The method which this document describes proposes to flush the silo (i.e. the storage compartment) using an inert gas, in particular 25 nitrogen, at ambient temperature. The inert gas is obtained by selective separation of the various components of air. This method reduces the oxygen concentration of the atmosphere contained in the compartment when the 30 latter has already been filled. EP-B-0 412 471 also describes the use of a gas such as nitrogen or carbon dioxide with a view to inerting silos. In both documents, only reduction of the oxygen 35 level of the atmosphere in the silo once full is envisaged in order to reduce the risks of destroying the stored products. However, significantly and permanently lowering - 3 the oxygen level of the atmosphere in the silo requires the use of very large amounts of inert gas, which increases the operating cost of the silo. The fact may furthermore be cited that, in 5 certain countries, governmental recommendations have tended towards equipping silos with venting systems in the upper part of the storage compartments. It has nevertheless become apparent very rapidly that such systems would be totally ineffective for certain 10 installation geometries. The object of the invention is to provide a solution to the problems of fire and explosion encountered in silos, and to do this at moderate cost. To that end, the invention relates to a method 15 for storing agricultural products in a silo containing a storage chamber of the aforementioned type, being characterized in that at least one of the said steps of handling the agricultural products is carried out in essentially closed conveying means of the silo, and in 20 that before the handling step, the said conveying means are inerted beforehand with a low-oxygen gas. According to particular embodiments, the method has one or more of the following characteristics: - before any step of handling the organic 25 products in essentially closed spaces in the silo, all the closed spaces in which the handling is to take place are inerted beforehand with a low-oxygen gas; - the or each storage compartment is inerted with a low-oxygen gas before any introduction of new 30 agricultural products; - the oxygen level of the low-oxygen atmosphere used in the prior inerting of an essentially closed space in the silo in which the agricultural products are to be handled is between 4 and 15%; 35 - after a storage compartment has been filled with agricultural products, the storage compartment is kept under a low-oxygen atmosphere only for a period of predetermined duration by injecting a low-oxygen gas - 4 into the said storage compartment, then the said storage compartment is left without addition of extra low-oxygen gas for the remaining storage period; - the said predetermined duration for which the 5 storage compartment is kept under a low-oxygen atmosphere is between 15 days and 1 month; - the oxygen level of the atmosphere in the storage compartment during the predetermined period for which it is kept under a low-oxygen atmosphere is 10 between 0.5 and 2%; - after a storage compartment has been filled with agricultural products, the agricultural products are cooled by flushing with a cool air flow; and - the said flushing of the agricultural products 15 with a cool air flow is carried out after the period of keeping the storage compartment under a low-oxygen atmosphere. The invention furthermore relates to an installation for storing agricultural products in a 20 silo, characterized in that it includes essentially closed conveying means in which the said agricultural products can be handled, and in that it comprises means for prior inerting of the said conveying means with a low-oxygen gas before the handling of the agricultural 25 products in the said conveying means. The invention will be understood more clearly on reading the following description which is given solely by way of example and made with reference to the single figure, which is a schematic view of an 30 installation for storing agricultural products according to the invention. The installation represented in Figure 1 contains a compartment 10 of a vertical silo for storing agricultural products in the form of grain, 35 such as wheat. At its lower end, the compartment has an outlet 12 for extracting the agricultural products. In its upper part, it has an inlet 14 for loading with agricultural products.
- 5 The inlet 14 is connected to means 16 for delivering the cereal to the silo. These means have a rising column 18 which is isolated from the external environment by a leaktight casing. A cup elevator 20 5 which transports the grain to the top of the silo is installed inside the column 18. At its bottom, the rising column 18 is connected to a horizontal conveyor 22 for transporting the grain. This conveyor is enclosed by a leaktight 10 hood 24, which isolates it from the ambient environment. The hood 24 confines, in particular, the dust produced during the motion of the grain transported by the conveyor 22. Another conveyor 26 for removing the grain is 15 installed at the outlet 12 of the compartment. This conveyor makes it possible to deliver the grain to an installation for loading transport vehicles or to another storage compartment of the silo. The conveyor 26 is also isolated from the 20 outside by a hood 28 enclosing it over its entire length. The installation 10 furthermore has means 34 for introducing a cooling gas flow into the silo, for example cool atmospheric air. 25 These means are designed to flush the compartment vertically from its lower part to its upper part with the cooling gas flow. The means 34 for introducing the cooling flow include a blower 36 which takes in cool atmospheric air 30 and delivers it to the base of the compartment 10 through an injection pipe 38. In its upper part, the compartment 10 has a vent 44 for discharging excess gas resulting from the flushing of the silo. 35 Furthermore, and according to the invention, means for injecting a low-oxygen gas, such as nitrogen, are provided at the base of the compartment 10 and on each of the grain-handling means, in order to inert - 6 them before any handling of the grain is carried out. In particular, a tap 46 for introducing nitrogen is provided at the base of each storage compartment 10. 5 Inlets for introducing nitrogen 48 and 50 are provided on the hood 24 of the horizontal conveyor 22 and on the rising column 18. Similarly, an inlet 52 for introducing nitrogen is provided on the hood 28 of the outlet conveyor 26. 10 The tap 46 and the inlets 48, 50 and 52 are connected by a distribution network 54 to a local unit 56 for producing nitrogen from atmospheric air. In a variant, the local production unit 56 is replaced by a tank 57 for cryogenic storage of 15 nitrogen, at the outlet of which an atmospheric warmer is installed. In the figure, the unit 56 and the tank 57 have both been represented. However, only one of them is employed. 20 Upstream of the tap 46 and the inlets 48, 50 and 52, the network 54 has a control valve 46a, 48a, 50a, 52a for selective supply of nitrogen, and under control of a central unit for supervising the installation. 25 The nitrogen store 57 or the local production unit 56 is installed immediately next to the silo. Advantageously, the production unit 56 has a generator generating nitrogen by permeation of atmospheric air through a permeable membrane. This 30 membrane is advantageously formed by a set of hollow polymer fibres of any suitable type. Furthermore, the generator advantageously has means for controlling the purity of the nitrogen obtained at its outlet. The nitrogen level is thus, for example, adjustable from 92 35 to 99.9%. The installation represented in Figure 1 operates in the following way. Generally, and according to the invention, - 7 before any handling of grain in an essentially closed space in the silo, this space is inerted with a low oxygen gas, prior to the handling of the cereal. The low-oxygen gas is advantageously impure nitrogen. The 5 impure nitrogen has, for example, a purity of from 92 to 97%. In particular, in order to load the silo with cereal, prior inerting of the storage compartment 10 and of the means 16 for delivering the grain to the 10 compartment is carried out first. To that end, impure nitrogen is introduced into the storage compartment 10. Depending on the volume of the compartment 10 to be inerted, the nitrogen is introduced for a time of between 12 and 24 hours. 15 Similarly, impure nitrogen of the same quality is introduced into the rising column 18 and into the space bounded by the hood 24 of the conveyor 22. Since the substantially closed space inside which the handling means are installed is relatively small, 20 impure nitrogen is introduced for about ten minutes before the handling means are used. The amounts of nitrogen introduced for the prior inerting of the compartment or the handling means are sufficient for the oxygen level to be between 4 25 and 15%, and to be advantageously substantially less than 9%. The oxygen level inside the closed system (elevator, conveyor and compartment) is brought to a value of between 4% and 15% oxygen. This level depends 30 on the nature of the organic product stored and, in particular, the nature of the dust which it produces. For example, in the case of wheat dust, a level of about 9% is suitable. This value is the minimum level so that, whatever the dust concentration, combustion is 35 not possible. This level can be achieved by impure nitrogen with a purity of from 92 to 97%, or pure nitrogen (stored in liquefied or compressed form), depending on the economic situation.
- 8 When the compartment 10 is initially inerted, as well as the delivery means 16, the grain is transferred progressively into the compartment 10 using the conveyors 22 and 20. 5 During the filling of the compartment 10, which may last several hours, impure nitrogen of the same quality is introduced continuously into the compartment 10 and into the delivery means 16. After the compartment 10 has been filled, pure 10 nitrogen, that is to say having a nitrogen concentration of more than 99.5%, is introduced through the tap 46 at the base of the compartment. The nitrogen is introduced with a flow rate which, depending on the volume of the compartment 10, is between 50 15 and 200 m 3 /h and, in particular, 100 m 3 /h. Pure nitrogen is introduced in an amount sufficient to ensure that an oxygen level of between 0.5 and 2% is obtained in the compartment 10. This low oxygen level is maintained for a 20 predetermined time, between 8 days and 1 month, and advantageously substantially equal to 15 days. The very low oxygen level in the compartment is maintained by continuously introducing pure nitrogen in order to compensate for the losses of nitrogen and the admission 25 of oxygen resulting from inevitable leaks through the walls of the compartment. During the holding time, the flow rate of pure nitrogen is, depending on the volume of the compartment, between 50 and 200 m 3 /h. Keeping a very low oxygen level inside the 30 compartment for a given amount of time ensures that the insects introduced when loading the silo will be killed. At the end of the phase of maintaining a very low oxygen level inside the compartment, the latter 35 undergoes flushing with cool air from the means 34 in order to cool the stored grain. This cooling is carried out over a cool night in order to introduce cool air taken from outside the silo. By virtue of the flushing - 9 of the compartment thus carried out, the temperature of the stored grain decreases from the temperature at which the grain was introduced, substantially equal to 300C, to a temperature close to 20 0 C. 5 At the end of this cooling phase, carried out over one night, the compartment is left as it is, without subsequently introducing any air or nitrogen. Thus, so long as no handling is carried out on the stored grain, the latter is left in the silo under an 10 atmospheric air atmosphere. When the grain contained in the compartment 10 is to be handled, and in particular when the grain is to be extracted from it, the compartment 10 is firstly inerted by introducing impure nitrogen through the 15 tap 46 before any movement of the grain. Similarly, the chamber bounded by the hood 28 of the outlet conveyor 26 is inerted by introducing impure nitrogen from the inlet 52 before any flow of grain. First, when the grain is set in motion, all the closed spaces 20 inside which the grain is handled are inerted beforehand, so that the oxygen level is very low there. Similarly, if the grain needs to be transferred from one storage compartment to another, before any handling of the grain, the handling means, as well as 25 the starting and end compartments for the grain, are inerted, thus ensuring that the grain only flows through closed spaces where the oxygen level is very low, and advantageously below 6%. It can be seen that by, prior to any handling 30 of the agricultural products, inerting the closed spaces in which they are handled, any risk of fire or explosion is eliminated because of the very low oxygen level in the spaces for moving or receiving the agricultural products. 35 In a variant, the method for filling the compartments can be implemented by reversing the phase of cooling with atmospheric air and the phase of keeping the silo under a very low oxygen level for a - 10 predetermined time. However, the cooling with air is advantageously carried out only after having kept the silo under a very low oxygen level. This is because the high 5 temperature prevailing in the silo, combined with the absence of oxygen, promotes killing of the insects. The method described above makes it possible to eliminate essential risks of explosion or accidental fire, while using only a small amount of nitrogen. 10 By way of example, for a silo having vertical compartments measuring 950 m 3 , with a height of 33.5 m and a diameter of 6 m, the annual nitrogen consumption per compartment is about 4000 m 3 . The consumption is calculated with the 15 following assumptions: - leakage rate of the compartments 10 m 3 /h - inerting rate for the handling means: 120 m/h - operating time per use of the handling means: 20 min 20 - throughput of the handling means: 150 t/h - number of annual fills: 2 per compartment - number of annual transfers between silos: 6 per compartment - time for maintaining 2% of oxygen in the 25 compartment: 15 days. - The method described here is also suitable for the storage of any type of organic products such as cocoa, flour or sugar.
Claims (13)
1. Method for storing organic products in a silo containing at least one storage compartment (10), in 5 which at least one step of handling the organic products in at least one essentially closed space in the silo is carried out, characterized in that, at least one of the said steps of handling the said agricultural products is 10 carried out in essentially closed conveying means (20, 22, 26) of the silo, and in that before the handling step, the said conveying means (20, 22, 26) are inerted beforehand with a low-oxygen gas.
2. Method according to Claim 1, characterized in 15 that before any step of handling the organic products in essentially closed spaces in the silo, all the closed spaces in which the handling is to take place are inerted beforehand with a low-oxygen gas.
3. Method according to either of the preceding 20 claims, characterized in that the or each storage compartment (10) is inerted with a low-oxygen gas before any introduction of new agricultural products.
4. Method according to any one of the preceding claims, characterized in that during the filling of one 25 or each storage compartment (10) with the agricultural products, the or each storage compartment (10) affected by the said filling is inerted with a low-oxygen gas.
5. Method according to any one of the preceding claims, characterized in that at least one of the said 30 handling steps is a step of extracting agricultural products from a compartment, and in that: - the storage compartment (10) affected by the said extraction is inerted with a low-oxygen gas prior to the extraction, and 35 - the conveying means used to carry out the said extraction are inerted with a low-oxygen gas prior to the extraction.
6. Method according to any one of the preceding - 12 claims, characterized in that at least one of the said handling steps is a step of transferring agricultural products from one storage compartment to another, and in that before any handling of the products, the 5 starting and end compartments for the products as well as. the means for conveying the products between the starting and end compartments are inerted beforehand with a low-oxygen gas.
7. Method according to any one of the preceding 10 claims, characterized in that the oxygen level of the said low-oxygen atmosphere is between 4 and 15%.
8. Method according to any one of the preceding claims, characterized in that, after a storage compartment (10) has been filled with agricultural 15 products, the storage compartment is kept under a low oxygen atmosphere only for a period of predetermined duration by injecting a low-oxygen gas into the said storage compartment (10), then the said storage compartment (10) is left without addition of extra low 20 oxygen gas for the remaining storage period.
9. Method according to Claim 8, characterized in that the said predetermined duration for which the storage compartment (10) is kept under a low-oxygen atmosphere is between 15 days and 1 month. 25
10. Method according to Claim 8 or 9, characterized in that the oxygen level of the atmosphere in the storage compartment (10) during the predetermined period for which it is kept under a low-oxygen atmosphere is between 0.5 and 2%. 30
11. Method according to any one of the preceding claims, characterized in that after the storage compartment has been filled with agricultural products, the agricultural products are cooled by flushing with a cool air flow. 35
12. Method according to Claim 11 taken with any one of Claims 8 to 10, characterized in that the said flushing of the agricultural products with a cool air flow is carried out after the period of keeping the - 13 storage compartment under a low-oxygen atmosphere.
13. Installation for storing agricultural products, containing a silo provided with at least one storage compartment (10) and containing means (20, 22, 26) for 5 handling the agricultural products in at least one essentially closed space in the silo, characterized in that the installation includes essentially closed conveying means (20, 22, 26) in which the said agricultural products can be handled, 10 and in that it comprises means for prior inerting of the said conveying means (20, 22, 26) with a low-oxygen gas before the handling of the agricultural products in the said conveying means (20, 22, 26).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR99/12155 | 1999-09-29 | ||
| FR9912155A FR2798918B1 (en) | 1999-09-29 | 1999-09-29 | METHOD AND INSTALLATION FOR STORING ORGANIC PRODUCTS |
| PCT/FR2000/002593 WO2001023288A1 (en) | 1999-09-29 | 2000-09-19 | Method and installation for storing organic products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU7528100A true AU7528100A (en) | 2001-04-30 |
Family
ID=9550381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU75281/00A Abandoned AU7528100A (en) | 1999-09-29 | 2000-09-19 | Method and installation for storing organic products |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1220811A1 (en) |
| AU (1) | AU7528100A (en) |
| FR (1) | FR2798918B1 (en) |
| WO (1) | WO2001023288A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091676A (en) * | 2016-08-16 | 2016-11-09 | 广西联壮科技股份有限公司 | Multilamellar dries bunker lift formula potter's clay calciner plant |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB559074A (en) * | 1941-12-22 | 1944-02-03 | William R Graham Jr | Improvements in and relating to methods of and apparatus for preserving vegetable and food materials |
| US3685431A (en) * | 1969-10-29 | 1972-08-22 | Obed W Stone | Machine for killing insects |
| JPS5817027A (en) * | 1981-07-17 | 1983-02-01 | Fuji Photo Film Co Ltd | Apparatus for carrying and supplying readily oxidizable powder and particle |
| DE3319249C1 (en) * | 1983-05-27 | 1984-10-11 | Messer Griesheim Gmbh, 6000 Frankfurt | Process for generating an inert gas atmosphere of constant composition from nitrogen and carbon dioxide in a refrigerated container |
| DE3444942A1 (en) * | 1984-12-10 | 1985-05-15 | Sauerstoffwerk Friedrich Guttroff GmbH, 6980 Wertheim | Method and device for the long-term conservation of moist cereals |
| DE3832390A1 (en) * | 1988-09-23 | 1990-04-05 | Bernd Dipl Chem Dr Penth | Process and apparatus for the destruction of food pests |
| FR2643232A1 (en) * | 1988-12-16 | 1990-08-24 | Mansour Robert | Method for protecting a large number of articles during storage and preservation periods, by using the evacuation of air followed by the introduction of an inert gas in a closed cycle |
| DE3926194A1 (en) * | 1989-08-08 | 1991-02-14 | Linde Ag | METHOD FOR CONTROLLING PEST IN GRAINY FOODS WHILE STORING IT IN CONTAINERS |
| FR2650962B1 (en) * | 1989-08-16 | 1992-02-28 | Air Liquide | PROCESS AND INSTALLATION OF THE GASEOUS TREATMENT OF A PRODUCT IN A CONFINED TREATMENT AREA, APPLICATION TO THE DEOXYGENATION OF FOOD LIQUID |
| WO1992002261A1 (en) * | 1990-08-01 | 1992-02-20 | Robert Gobran Mansour | Method for preserving a plurality of items by creating an inert gas atmosphere in a closed circuit |
| ATE118464T1 (en) * | 1990-12-18 | 1995-03-15 | Thyssen Still Otto Gmbh | METHOD FOR THE EXPLOSION-PROOF DRYING OF SEWAGE SLUDGE. |
| FR2688382A1 (en) | 1992-03-10 | 1993-09-17 | Francois Denis | Process for the preservation of cereal grain or other similar food products |
-
1999
- 1999-09-29 FR FR9912155A patent/FR2798918B1/en not_active Expired - Fee Related
-
2000
- 2000-09-19 EP EP00964319A patent/EP1220811A1/en not_active Withdrawn
- 2000-09-19 AU AU75281/00A patent/AU7528100A/en not_active Abandoned
- 2000-09-19 WO PCT/FR2000/002593 patent/WO2001023288A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001023288A1 (en) | 2001-04-05 |
| FR2798918A1 (en) | 2001-03-30 |
| EP1220811A1 (en) | 2002-07-10 |
| FR2798918B1 (en) | 2001-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK6 | Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase | ||
| TH | Corrigenda |
Free format text: IN VOL 15, NO 30, PAGE(S) 6231-6235 UNDER THE HEADING APPLICATIONS LAPSED, REFUSED OR WITHDRAWN PLEASE DELETE ALL REFERENCE TO APPLICATION NO. 73081/00, 74391/00, 75281/00, 75283/00, 76673/00, 76690/00, 76725/00, 76726/00, 76728/00, 77934/00, 77935/00, 77942/00 AND 11292/01 |