ES2394651B1 - "PROCEDURE FOR COLLECTION OF USED FOOD OIL, AND CORRESPONDING CISTER VEHICLE" - Google Patents

Abstract

The invention relates to a method for collecting used food oil, and to a corresponding tanker, especially designed to carry out said method. Said method comprises the following steps: users deposit discrete quantities (1) of used food oil in containers (2) comprising a receptacle (3) wherein said discrete quantities (1) accumulate, forming a single volume (4); and the used food oil accumulated in said receptacles (3) is collected by a tanker (5) that transfers the used food oil from said receptacle (3) to the tank (6) of the tanker (5) through a hose (7) by which means said receptacle (3) and said tank (6) are interconnected, the transfer involving the movement of a volume (8) of hot used food oil through said receptacle (3), at a temperature higher than 50°C, said used food oil being warmed by heating means (9) provided in said tanker (5).

Description

PROCEDURE FOR COLLECTION OF USED FOOD OIL, AND CORRESPONDING TANK VEHICLE

5

Field of the Invention

The invention is in the field of recovery of used food oil 10 to facilitate its recovery, recycling or proper treatment as waste.

More specifically, the invention relates to a method of collecting used food oil and a tank vehicle specially designed to implement said process.

State of the art

20 Used food oils that are generated domestically, or on a larger scale, such as in restaurants, are typically oils that have been used to cook food and are usually evacuated through the kitchen drain during the cooking process. frying pans, pans, etc. This evacuation through the drain causes a significant cost in the plants

25 sewage treatment plants and, in cases where a specific oil removal treatment is not carried out, causes a pernicious contamination of natural waters. On the other hand, these used food oils constitute a material of considerable value, since they can be used directly as fuel in certain processes or transformed

30 in quality fuel, for example for the production of biodiesel.

The recovery of these used food oils is thus highly advantageous, both from the environmental point of view and from the economic point of view. However, at the domestic level this recovery is not

performing at significant levels because the current storage and collection systems are too cumbersome for citizens, which causes them to choose not to store these oils in their homes and continue to evacuate them through the drain. On a larger scale, as in the case of restaurants, there are collection systems that consist of storing used food oils in drums or similar tanks that are stored in the restaurant's premises and that are collected by a truck and transported to a center of centralized treatment. Likewise, more sophisticated systems have also been proposed on a larger scale, such as the one described in document EP1180492A1, which consists of providing static containers in restaurants that are periodically emptied and equipped with a heating system, integrated into the own container, to heat the used food oil stored in said container at the time of making a suction transfer to a tank vehicle, in order to fluidize the oil and facilitate its transfer. These systems have the disadvantage that they are not applicable in other fields, such as the collection of used food oils produced domestically. Another drawback is that, since the container is static and must be installed in the premises of the restaurant itself, it is difficult to have large capacity containers, which

20 complicates collection and increases its cost.

Summary of the invention

The purpose of the invention is to provide a method of collecting used food oil that solves the problems set forth above and that can be applied, preferably but not limited to, for the collection of used food oil produced domestically.

30 This purpose is achieved by a method of collecting used food oil, characterized in that it comprises the following steps: - users deposit discrete amounts of used food oil in temporary storage containers distributed in a

geographical area, each of said containers comprising a tank in which said discrete amounts of used food oil accumulate, forming the same volume;

- the used food oil accumulated in said tanks in the containers

5 is collected by means of a tank vehicle carrying out a used food oil transfer operation, from said tank of the container to the tank of said tank vehicle through a flexible conduit through which said tank and said tank are removably connected , said transfer operation comprising the transit through said

10 cuba of a volume of hot used food oil, at a temperature greater than 50 ° C, preferably greater than 80 ° C, which is heated by heating means provided in said tank vehicle.

The containers are preferably installed on public roads, for example next to

15 other containers for the collection of recyclable household waste such as paper, glass, plastic containers, etc. Users travel from their home to the container installed on public roads carrying a container that contains a discrete amount of used food oil, which they pour into the container. Users can return home with the empty container, to

20 reuse it, or discard said container by depositing it in another container intended to collect waste of the type corresponding to said container. In an advantageous embodiment, which will be discussed below, the package is a flexible plastic bag that is deposited in the same container as the used food oil. In any case, discrete amounts of oil

25 used food that users deposit in the container accumulate forming the same volume of food oil used in the container tank. This allows the use of a tank vehicle that makes the round of the containers, collecting the used food oil contained in them by means of a simple process of transfer to its tank. Making a trip through Cuba a

30 volume of hot used food oil, at a temperature higher than 50 ° C and preferably higher than 80 ° C, it is possible to increase the temperature of the used stored oil contained in said tank, so that it is sufficiently liquid and not very viscous to be easily transferred to the

tank driven by the pump through the flexible duct. In general, a used food oil that has been used to cook food can be in a solid state at ambient temperatures. Therefore, and taking into account that the containers are preferably intended to be installed outside in order to facilitate the access of the tank vehicle, it is advantageous to systematically increase the temperature of the used food oil that is contained in the container tank, before carrying out the transfer to the cistern. In the process according to the invention this is done by passing the said volume of hot used fed oil that has been heated through the tank.

10 by the heating means provided in the tank vehicle, whereby it is not necessary to have an energy source to feed the container and this can be completely passive.

Although it is possible to obtain the said volume of hot used food oil

15 using heating means acting on a flow of oil in circulation towards the container tank, in preferred embodiments said volume of hot used food oil is contained in a tank of hot oil which is provided in the tank vehicle and which it is kept in said hot oil tank at a temperature higher than 50 ° C,

20 preferably above 80 ° C, by the heating means, which can be advantageously located inside the hot oil tank. Thus, while the tank vehicle makes the round, the heating means are operative and when said tank truck approaches a container for a transfer, the volume of hot oil that will be made is already available in the tank truck

25 transit through the container tank.

Preferably, in a first stage of said transfer operation, the volume of hot used food oil is injected into the container vessel, which forms a mixture with the volume of used food oil accumulated in said tank, and in a second stage aspirate said mixture into the tank of the tank vehicle. This makes it possible to simplify the configuration of the tank vehicle and also makes the operations that the operator of the tank truck must carry out more simple for the transfer. As will be seen below, a configuration can be provided in which the hot oil tank is connected to the tank, so that the used food oil can pass from said hot oil tank to said tank and vice versa, and a connection system connecting in series said hot oil tank, said pump and said flexible conduit 5. The operator only has to connect the free end of the flexible conduit to the container tank, actuate the pump in a direction of impulse towards the tank to inject the volume of hot oil into it and subsequently re-operate the pump in the opposite direction, to the hot oil tank, to transfer to the tank, through the used oil tank, the mixture

10 contained in the tank.

In a preferred embodiment, which is especially suitable for the collection of used food oils produced domestically, the discrete amounts of used food oil that users deposit in the 15 containers are contained in flexible bags which, when introduced into said containers are torn by tearing means provided in said containers, so that the discrete amount of used food oil contained in said flexible bag is released, falls by gravity and accumulates in the container bowl, and said flexible bags once torn 20 are disposed in a receptacle for torn flexible bags which is provided in said containers and which is different from said tank, the collection of said torn flexible bags contained in said receptacle also being carried out by means of the tank vehicle which is provided with means of storage for said flexi bags torn bles. Preferably, said 25 flexible bags that have been torn by said tearing means in the container are automatically transferred to said receptacle by scanning means provided in the container. This makes it easier for users to take used food oil to containers instead of throwing it down the drain, because they only have to store the disposable hoses in their homes and, when they deposit one of these flexible bags filled with oil in the container used food, at the same time dispose of said flexible bag without worrying about its proper recycling, which can be easily made thanks to the fact that the bags

flexible are arranged in the container, separated from the used food oil, and are collected by means of the same tank vehicle.

The invention also comprises a tank vehicle that is designed

5 especially to implement the procedure described. Said tank vehicle is characterized in that it comprises a tank for storing used food oil, a flexible conduit for removably connecting said tank with the container tank, a pump for driving a circulation of used food oil through said flexible line, means

10 heaters for heating a volume of used food oil at a temperature greater than 50 ° C and a connection system for conveying said volume of used food oil heated towards said container vessel.

Preferably, said tank vehicle comprises a hot oil tank

15 for storing said volume of used food oil heated to a temperature greater than 50 ° C by said heating means.

Preferably, said hot oil tank is communicated with said tank, so that the used food oil can pass from said tank

20 of hot oil to said tank and vice versa, and said connection system connects in series said hot oil tank, said pump and said flexible conduit.

Preferably, said hot oil tank is located below said tank.

Preferably, said tank vehicle comprises a receptacle for receiving the torn flexible bags.

The invention also encompasses other detail features illustrated in the detailed description of an embodiment of the invention and in the accompanying figures.

Brief description of the drawings

The advantages and characteristics of the invention can be seen from the following description in which, without any limitation, a preferred embodiment of the invention is mentioned by mentioning the accompanying figures.

The figures show:

Fig. 1, a schematic drawing depicting the tank vehicle making a round of 10 containers to collect used food oil and take it to a centralized storage tank;

Fig. 2, a schematic drawing illustrating the tank vehicle and a container, with the essential characteristics of both, where the container is represented on a larger scale for clarity in the description;

Fig. 3 and 4, perspective views of the tank vehicle.

20 Detailed description of an embodiment of the invention

The process according to the invention is schematized in Figs. 1 and 2. Temporary storage containers 2, which will be described in greater detail below, are distributed on public roads in an urban area 25. Users, who are normally people who have produced used food oil domestically, typically food oil that has been used for cooking food, deposit discrete quantities 1 of used food oil in containers 2, and these discrete quantities 1 are they accumulate forming the same volume 4 in a tank 3 comprised in the container 30, until a tank vehicle 5 makes a round by the containers 2 to transfer the contents of the tanks 3 to its tank 6 and finally unload the contents of said tank in a centralized storage warehouse 17 that is remote, for example in a

Biodiesel production plant that uses used food oil as raw material.

In the preferred embodiment described herein, the discrete amounts 1 of 5 used food oil that the users deposit in the containers 2 are contained in a waterproof flexible bags 11, for example of polyethylene.

The container 2 is schematically represented in Fig. 2. It essentially comprises a tank 3, an inlet mouth 18 that flows into said tank 10 3, a cover 19 for access to said inlet mouth, tearing means 12 that tear 12 the flexible bags when these are introduced by the inlet port 18, on which the torn flexible bag 20, that is to say the flexible bag 11 that has been torn by said tearing means 12, a receptacle 13 different from the tank 3 is at rest and a sweeping means 15 that

15 automatically move said torn flexible bag 20 from said tearing means12 to said receptacle 13.

The tearing means 12 are sharp and sharp elements that are arranged in a lower area of the inlet mouth 18, with their tips 20 facing upwards, so that the flexible bag 11 loaded with oil falls on them and tears, releasing, releasing the oil it contained. The tearing means 12 are configured as parallel blades that leave each other spaces through which said released oil drains to fall by gravity into the tank 3. In the schematic drawing of Fig. 2 a simple solution has been shown in which the oil that drains between the tearing means 12 falls directly into the tank 3. Of course, more complex solutions can be provided without departing from the scope of the invention, such as for example that the oil falls into a collector located under the means rippers 12 and then circulate inside a coil tube that flows into the bottom of

30 Cuba 3.

The sweeping means 15 consist of a movable comb that passes through the spaces between said blades that form the tearing means 12, picking up

its passage the torn flexible bag 20 resting on said blades and throwing it into the receptacle 13, as shown schematically in Fig. 2. Preferably, the movement of this mobile comb forming the sweeping means 15 is mechanically linked to the opening movement of the lid 19, so that when a user opens said lid 19 to deposit a flexible bag 11 loaded with oil, the start of the opening movement of said lid 19 causes a rapid reciprocating movement of said comb mobile, which picks up the torn flexible bag 20 (which is resting on the tearing means 12 since the last time a user had deposited a flexible bag loaded with oil in the container 10), throws it into the receptacle 13 and returns to its initial position below the tearing means 12. It is not considered necessary to detail here a particular mechanical solution to mechanically link the movement d the mobile comb to the movement of the lid 19. The person skilled in the art can design a convenient solution from the

15 principles here exposed.

The receptacle 13 is formed by a container opened by its upper face and arranged next to the tank 3, below the end-of-travel position of the movable comb that forms the sweeping means 15 (position shown in Fig. 2), from

20 so that when said mobile comb reaches this position the torn flexible bag 20 falls into said receptacle 13. The container 2 has a door (not shown) that gives access to said receptacle 13 and is securely closed so that It can only be opened by an authorized operator to remove the torn flexible bags 20 contained therein.

25 The tank 3 is provided in its lower part with connection means 21 for connecting the flexible duct 7 of the tank vehicle 5. These connection means 21 are constituted by a fitting specially designed to allow only the connection with the free end of said tank. flexible conduit 7, which is

30 equipped with a complementary fitting. In the example described here, the tank 3 can store a volume 4 of used food oil of up to about 400 liters.

The tank vehicle 5, as can be seen in Figs. 2, 3 and 4, is a truck provided with a tank 6 for storing the used food oil transferred from the containers 2, a hot oil tank 10 for storing a volume 8 of hot used food oil, heating means for heating said volume of oil 8 and keep it in said hot oil tank 10 at a temperature greater than 50 ° C, preferably greater than 80 ° C, a flexible conduit 7 for removably connecting the tank 6 with the tank 3 of a container 2, a pump 16 to drive a circulation of used food oil through the flexible conduit 7, and a connection system for vehicular 10 said volume 8 of used food oil heated towards said tank 3 of the container 2, and storage means 14 to receive the bags flexible torn 20. In the example described here, the tank 3 has a capacity of 10,000 liters and the hot oil tank 10 has a capacity of 100 liters s. The volume 8 of hot used food oil in the tank 10 is maintained at a temperature of 130 ° C. The pump 16 gives a flow rate of approximately 300 liters / minute and is equipped with a double circuit (not shown) that allows the oil to be propelled in both directions through the flexible duct 7. The heating means 9 are electrical resistors provided inside of the tank 10 and connected to the electric generator of the tank vehicle 5. The tank 20 of hot oil 10 is located below the tank 6 and is connected to it, so that the used food oil can pass from said tank of hot oil 10 to said tank 6. The said connection system is a tubing (shown schematically in Fig. 2, but omitted for reasons of clarity in Figs. 3 and 4) that connects in series the hot oil tank 25, the pump 16 and the flexible duct 7. Since the hot oil tank 10 is connected to the tank 6, when the flexible duct 7 is connected at its free end to the connection god 21 of the tank 3 of a container 2, the connection between the tank 5 and said tank 3 is being made. The flexible conduit 7 is a rolling hose on a support at the rear 30 of the tank vehicle 5. The means of storage 14, suitable for receiving the torn flexible bags 20, consist of a drawer provided on the side of the tank vehicle 5. The tank vehicle is also equipped with a fairing 22 covering the tank 5 and the hot oil tank 10, and some closets 23 for

storing tools, which are also covered by the fairing 22 and which are accessible from the outside through a blind (not shown).

To carry out the transfer of used food oil from a container 2 to the

5 tank vehicle 5 the following operations are performed. The operator, who is normally the driver of said vehicle, unwinds the necessary length of hose or flexible conductor 7 and connects the free end of the latter to the connection means 21 of the tank 3. In a first stage, the operator configures the double circuit of the pump 16 so that it drives a flow towards the tank 3, of

10 such a way that the volume 8 of hot used food oil that was stored in the hot oil tank 10 is injected into said tank 3. A configurable electronic control equipment is in charge of stopping the pump 16 when the desired volume of oil has been injected hot. This hot oil is mixed with volume 4 of used food oil that was accumulated in tank 3.

15 The oil mixture in the tank 3 reaches a temperature greater than that of the initial volume 4, so that it is sufficiently liquid and not very viscous to be transferred to the tank 6 by means of the pump 16 in a second stage. To perform this second stage the user configures the double circuit of the pump 16 so that it drives a flow towards the tank 6, so that the

20 mixture contained in the tank 3 is sucked into the tank 6, passing through the hot oil tank 10. When the entire mixture has been aspirated, the pump 16 detects it and stops automatically. At the end of this operation the operator disconnects the flexible conduit from the connection means 21 and rewinds said flexible conduit 7 at the rear of the tank vehicle 5. Finally, the

25 Operator opens the door that gives access to the receptacle 13 of the container 2, collects the torn flexible bags 20 stored therein and deposits them in the storage means 14 provided in the tank vehicle 5. Thus, by means of the tank vehicle 5 has collected both the used food oil stored in the container 2 and the torn flexible balls 20 which

30 were also stored is this one. The operation is repeated in container 2 below. Finally, the tank vehicle 5 deposits the oil in a centralized storage tank 17 and also deposits the torn flexible bags 20 in a collection center for recycling or energy recovery thereof.

Claims (10)

5 1.-Procedure for collecting used food oil, characterized in that it comprises the following steps: - Users deposit discrete quantities (1) of used food oil in temporary storage containers (2) distributed in a geographical area, each of said containers (2) 10 comprising a tank (3) in which said discrete amounts (1) of used food oil accumulate, forming the same volume (4); - the used food oil accumulated in said tanks (3) in the containers (2) is collected by means of a tank vehicle (5) carrying out a transfer operation of used food oil, from Said tank (3) of the container (2) to the tank (6) of said tank vehicle (5) through a flexible conduit (7) by which said tank (3) and said tank (6) are removably connected, said transfer operation comprising the transit through said tank (3) of a volume (8 ) of hot used food oil, at a temperature above 50 ° C, 20 which is heated by heating means (9) provided in said tank vehicle (5). 2. Method according to claim 1, characterized in that said volume (8) of hot used food oil is contained in an oil tank Hot (10) provided in said tank vehicle (5) and is kept in said hot oil tank (10) at a temperature above 50 ° C by said heating means (9). 3. Method according to any of claims 1 or 2, characterized 30 because in a first stage of said transfer operation, said volume (8) of hot used food oil is injected into said tank (3) of the container (2), which forms a mixture with the volume (4) of accumulated used food oil in said tank (3), and in a second stage said mixture is sucked into said tank (6) of the tank vehicle (5). 4. Method according to any of claims 1 to 3, characterized 5 because said discrete quantities (1) of used food oil that users deposit in said containers (2) are contained in flexible bags (11) which, when introduced into said containers (2), are torn by tearing means ( 12) provided in said containers (2), so that the discrete amount (1) of used food oil contained in 10 said flexible bag (11) is released, falls by gravity and accumulates in said tank

(3)

of the container (2), and because said flexible bags (11) once torn

(twenty)

they are arranged in a receptacle (13) for torn flexible bags provided in said containers (2), said receptacle (13) being different from said tank (3), also collecting said torn torn bags

15 (20) contained in said receptacle (13) by means of said tank vehicle (5) which is provided with storage means (14) for said torn torn bags (20). 5. Method according to claim 4, characterized in that said bags 20 flexible (11) that have been torn (20) by said tearing means (12) in the container (2) are automatically transferred to said receptacle (13) by scanning means (15) provided in said container (2). 6. Tanker vehicle (5) for the implementation of the procedure according to the Claim 1, characterized in that it comprises a tank (6) for storing used food oil, a flexible conduit (7) for removably connecting said tank (6) with said tank (3) of the container (2), a pump (16 ) to drive a circulation of food oil used through said flexible conduit (7), heating means (9) to heat a volume of oil 30 used food (8) at a temperature above 50 ° C and a connection system for vehicular said volume of used food oil heated (8) towards said tank (3) of the container (2). 7. Tanker vehicle (5) according to claim 6, characterized in that it comprises a hot oil tank (10) for storing said volume (8) of used food oil heated to a temperature greater than 50 ° C by said heating means ( 9). 8. Tanker vehicle (5) according to claim 7, characterized in that said hot oil tank (10) is communicated with said tank (6), so that the used food oil can pass from said hot oil tank (10) to said tank (6) and vice versa, and said connection system connects in 10 series said hot oil tank (10), said pump (16) and said flexible conduit (7). 9. Tanker vehicle (5) according to claim 8, characterized in that said hot oil tank (10) is located below said tank (6). 10. Tank vehicle (5) according to any of claims 6 to 9, characterized in that it comprises a receptacle (13) for receiving the torn flexible bags (20). SPANISH OFFICE OF THE PATENTS AND BRAND Application no .: 201031343 SPAIN Date of submission of the application: 08.09.2010 Priority Date: REPORT ON THE STATE OF THE TECHNIQUE 51 Int. Cl.: See Additional Sheet RELEVANT DOCUMENTS

Category

56 Documents cited Claims Affected

TO

US 5609193 A (STECKLER JOHN F) 03/11/1997, the whole document. 1-9

TO

WO 2007005262 A1 (CANNON JOHN F ET AL.) 01/11/2007, the whole document.

1-9

TO

FR 2699152 A1 (FAUCHILLE STEPHANE) 06/17/1994, the whole document.

1-5

Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application

This report has been prepared • for all claims □ for claims no:

Date of realization of the report 14.12.2012

Examiner C. Espejo Rodriguez Page 1/4

REPORT OF THE STATE OF THE TECHNIQUE Application number: 201031343 CLASSIFICATION OBJECT OF THE APPLICATION B67D7 / 82 (2010.01) B65B1 / 04 (2006.01) B67D7 / 02 (2010.01) B65B1 / 16 (2006.01) Minimum documentation sought (classification system followed by classification symbols) B67D Electronic databases consulted during the search (name of the database and, if possible, search terms used) INVENTIONS, EPODOC State of the Art Report Page 2/4  WRITTEN OPINION Application number: 201031343 Date of Written Opinion: 14.12.2012 Statement

Novelty (Art. 6.1 LP 11/1986)

Claims Claims 1-9 IF NOT

Inventive activity (Art. 8.1 LP11 / 1986)

Claims Claims 1-9 IF NOT

The application is considered to comply with the industrial application requirement. This requirement was evaluated during the formal and technical examination phase of the application (Article 31.2 Law 11/1986).  Opinion Base.- This opinion has been made on the basis of the patent application as published. State of the Art Report Page 3/4  WRITTEN OPINION Application number: 201031343 1. Documents considered.- The documents belonging to the state of the art taken into consideration for the realization of this opinion are listed below.

Document

Publication or Identification Number publication date

D01

US 5609193 A (STECKLER JOHN F) 11.03.1997

D02

WO 2007005262 A1 (CANNON JOHN F et al.) 11.01.2007

D03

FR 2699152 A1 (FAUCHILLE STEPHANE) 06.17.1994

2. Statement motivated according to articles 29.6 and 29.7 of the Regulations for the execution of Law 11/1986, of March 20, on Patents on novelty and inventive activity; quotes and explanations in support of this statement The technical object of the invention is a method of collecting used food oil, where initially users have deposited discrete amounts of food oil (4) in temporary storage containers (2) said oil being contained in flexible bags, which are torn by tearing means (12), provided in said temporary storage containers (2), each of these containers comprising a tank (3) where the oil accumulates, and a receptacle (13) where the flexible bags are arranged once they have been torn and transferred to the receptacle (13) by means of sweeping means (15), and both (oil and bags) being collected by means of a tank vehicle (6). The bags will be collected manually and placed in the receptacle (13) arranged in the tank truck. The oil will be collected through a flexible conduit (7) that is connected to the temporary storage container, initially there is a transfer of a volume (8) of food oil at a temperature higher than 50 ° C, from the tank truck to the storage container temporary. Next, the hot injected oil (8) that came from the hot oil tank (10) of the tank vehicle, is mixed with the non-hot oil contained in the tanks (3) of the temporary container (2), and proceeds to a Reverse suction, that is, from the temporary container to the tank truck. Also part of the technical object of the invention is a tank vehicle comprising a tank for storing used oil (6), a flexible conduit (7) for removably connecting said tank with the container tank (3), a pump for driving a circulation of food oil through said flexible conduit, heating means for heating a volume (8) of used food oil at a temperature greater than 50 ° C and contained in the hot oil tank (10), and a connection system for said volume (8) to the container tank (3). The hot oil tank (10) that contains the volume transfer (8), is connected to the tank (6) so that there can be a transfer in both directions, there is also a serial connection with the pump (16) and with the flexible conduit (7). The hot oil tank (10) is located below the tank (6) of the tank vehicle. Document D01 is considered the closest in the state of the art to the object of the invention, and discloses a food oil tanker, comprising a cistern and a flexible conduit that is coupled to a temporary container, which has means of heating that keep the oil hot, and at an ideal viscosity to be transferred from the temporary container to the tank of the tank truck. Document D02 discloses a tank truck with a tank provided with heating means, a flexible loading and unloading duct and a pump. Document D03 discloses a temporary storage container of materials to be recycled, with tearing means, causing that on the one hand, the liquid product contained in the container, falls and is stored in a tank, and that on the other, the container is stored in another receptacle independently. The claimed invention differs mainly from the cited documents in that none of the cited documents show that there is a transfer of hot oil from the tank tank tank (10) to the tank (3) of the temporary container (2), thus mixing a portion of the hot oil (8), with the oil of the tank (3), subsequently being able to pump all the oil from the temporary container to the tank (6) of the tank truck in reverse. It also differs in that a tank truck with an extra and independent tank of hot oil (10) to the tank (10), which is connected to the tank (6), has not been found, so that it can be transferred in both directions, There is also a serial connection with the pump (16) and with the flexible conduit (7). Therefore, none of the cited documents taken alone or in combination reveals the invention defined in claims 1 to 9, so that the object of the invention is considered to be new and has inventive activity. State of the Art Report Page 4/4