Vacurema technology: Difference between revisions
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[[File:Erema Bottle-Flakes-Agrade.jpg|thumbnail|right|PET bottle flakes A grade (Source: Erema)]] | [[File:Erema Bottle-Flakes-Agrade.jpg|thumbnail|right|PET bottle flakes A grade (Source: Erema)]] | ||
[[Erema]]'s Vacurema systems offer modular | [[Erema]]'s Vacurema systems offer modular approaches for different solutions of PET bottle recycling. The patented process is designed for the recycling of post consumer PET bottle flakes, PET in-house waste and also PE-HD bottle flakes. Vacurema technology was first launched in 1998. | ||
Erema claims that there are currently more than 150 Vacurema systems in use around the world, producing high-quality pellets and end products with an overall capacity of over 1 million tonnes. | Erema claims that there are currently more than 150 Vacurema systems in use around the world, producing high-quality pellets and end products with an overall capacity of over 1 million tonnes. | ||
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In addition to this the Vacurema extruder can be combined with film production lines of many downstream system suppliers. This enables direct production of high-quality end products without pelletising. | In addition to this the Vacurema extruder can be combined with film production lines of many downstream system suppliers. This enables direct production of high-quality end products without pelletising. | ||
* PET bottle-to-bottle | * PET bottle-to-bottle applications | ||
=== Basic principles === | === Basic principles === | ||
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==== Vacurema Basic ==== | ==== Vacurema Basic ==== | ||
The system consists in its key components of a vacuum reactor which is linked directly to a single-screw extruder. The vacuum reactor unit is filled with amorphous, washed PET flakes via a vacuum lock. Decontamination and pre-drying of the processed material take place inside the vacuum reactor. From the reactor the material is fed at a high vacuum into the intake zone of the single-screw extruder. As a result no additional degassing ports are required on the extruder itself. This means that the | The system consists in its key components of a vacuum reactor which is linked directly to a single-screw extruder. The vacuum reactor unit is filled with amorphous, washed PET flakes via a vacuum lock. Decontamination and pre-drying of the processed material take place inside the vacuum reactor. From the reactor the material is fed at a high vacuum into the intake zone of the single-screw extruder. As a result no additional degassing ports are required on the extruder itself. This means that the Vacurema technology reduces the length of the extruder, reduces its energy consumption , improves colour values (b value) of the processed material and keeps AA values to a very low level. | ||
processed material and keeps AA values to a very low level. | In the downstream high-performance fine filter the material is filtered with a 32μm mesh screen width . The filter system is equipped with a patented fully automatic self-cleaning system that enables long filter service life. | ||
In the downstream high-performance fine filter the material is filtered with a | The now finished melt is then passed on to the downstream process for the production of end products such as fibres, strapping, thermoforming sheet or amorphous or crystalline pellets. | ||
32μm mesh screen width . The filter system is equipped with a patented fully automatic self-cleaning system that enables long filter service life. | |||
The now finished melt is then passed on to the downstream process for the | |||
production of end products such as fibres, strapping, thermoforming sheet or amorphous or crystalline pellets. | |||
Vacurema Basic has become established in the field of so-called inline production systems. PET secondary raw materials such as bottle flakes, ground amorphous skeleton waste, virgin material, edge trim and mixtures of them with virgin material are recycled directly to make end products such as FDA approved and ILSI compliant thermoforming sheet and even fibres and strapping. | Vacurema Basic has become established in the field of so-called inline production systems. PET secondary raw materials such as bottle flakes, ground amorphous skeleton waste, virgin material, edge trim and mixtures of them with virgin material are recycled directly to make end products such as FDA approved and ILSI compliant thermoforming sheet and even fibres and strapping. | ||
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Purity and IV requirements placed on the end product (rPET pellets) can be adapted individually by selecting appropriate batch times. | Purity and IV requirements placed on the end product (rPET pellets) can be adapted individually by selecting appropriate batch times. | ||
=== References === | |||
=== Related articles === | ==== Related articles ==== | ||
[https://petpla.net/archive/PP201403?pp_page=18 Vacurema: rPET for direct food contact] | [https://petpla.net/archive/PP201403?pp_page=18 Vacurema: rPET for direct food contact] | ||
=== Links === | ==== Links ==== | ||
[http://www.erema.at/en/home/ www.erema.at] | [http://www.erema.at/en/home/ www.erema.at] | ||