par energy_isere » Hier, 19:05
Une boite au Canada,DENOVIA, affirme pouvoir recycler le polyester dans les vêtements par dépolymérisations :
Denovia Sets a New Global Standard in Textile Recycling, Achieving 98.3% Purity from Waste
By Spencer Hulse Spencer 23 march 2026
The global textile waste crisis has long demanded a solution equal to its scale. Every year, over 92 million tonnes of discarded clothing and textiles end up in landfills, representing one of the most urgent and underserved environmental challenges of our time. Today, Denovia has answered that call. The company has successfully demonstrated, at a commercial scale, the ability to transform contaminated, post-consumer textile waste into terephthalic acid monomer — the essential building block from which polyester is made — with an independently verified purity of 98.3%, equivalent to virgin-state production.
This milestone is not a laboratory result. It was achieved using real-world, contaminated textile feedstock — the kind of mixed, blended, and soiled material that makes up the vast majority of what is collected at donation centres and textile diversion programs across North America. The result is a proven, scalable solution that changes what is possible for the circular textile economy.
A Solution Built for the Real World
The textile recycling challenge has always been defined by complexity. Most discarded garments are not made of a single material — they are blends of polyester, cotton, nylon, and other fibers, often contaminated with dyes, coatings, and finishes. This complexity has historically made meaningful recycling nearly impossible at scale, forcing even well-intentioned organizations to send the majority of collected textiles to landfill.
Denovia’s technology was purpose-built to solve this problem. Rather than requiring clean, sorted, single-fiber inputs, the system is designed to process the messy, real- world feedstock that defines the textile waste stream. The output speaks for itself: independently verified, third-party lab test results confirm a terephthalic acid monomer purity of 98.3%. To put that in plain terms: terephthalic acid is the core raw ingredient used to manufacture polyester — the same material found in clothing, bottles, and packaging around the world. Producing it at 98.3% purity from waste means the recovered material is, in practical terms, indistinguishable from what a petrochemical plant would produce from scratch. It meets the most demanding quality specifications in the industry and can re-enter the supply chain as a direct substitute for virgin material.
“What we have achieved is not just an incremental improvement; it is a fundamental shift in what textile recycling can deliver. Our technology handles the complex, blended materials that have historically been impossible to recycle, and it does so with remarkable efficiency and output quality. This is the solution the world has been waiting for.”
Denovia is confident that with continued optimization, output purity will surpass even the current 98.3% benchmark in the very near future, pushing the boundaries of what recycled materials can achieve and bringing the industry closer than ever to a truly closed loop.
Beyond Polyester: A Vision for the Entire Waste Stream
............................
https://gritdaily.com/denovia-sets-new- ... recycling/
et
A Chemical Breakthrough That Could Fix the Plastic Crisis
By Michael Scott - May 05, 2026
.................
The company has demonstrated that mixed, contaminated textile waste can be broken down into terephthalic acid at 98.3% purity, approaching virgin-grade quality. And it can do it in a fraction of the time any other technology has managed so far. If that holds at scale, it could mark a new beginning for our forever synthetics and a new era for plastics.
.................
Denovia’s technology originated from a collaboration with a group of expert scientists who had been developing the underlying chemistry for roughly six years . At its core, the process uses a proprietary liquid to break down plastics at the molecular level. Waste material such as PET bottles or polyester textiles is first shredded to increase surface area, then introduced into the solution, where heat and pressure trigger rapid depolymerization.
In practical terms, the system splits long polymer chains back into their original chemical building blocks, such as terephthalic acid and monoethylene glycol, within minutes. These monomers are then purified and reused to produce new, virgin quality plastic, effectively resetting the material to its original state rather than degrading it through traditional recycling methods.
Denovia’s edge comes down to how quickly and efficiently the process works compared to what’s out there today. Most competing technologies take far longer to break plastics down and require significantly higher costs to operate, and many still haven’t proven they can generate meaningful revenue at scale.
In contrast, Denovia’s process brings depolymerization down to minutes, not hours, using moderate heat and a system that can reuse the majority of its input liquid. From what the company has seen, few, if any, technologies appear to match it on speed, economics, and output quality.
Published research shows how slow and energy intensive traditional plastic recycling still is. Most PET depolymerization today runs in the range of 30 to 180 minutes and often at temperatures well above 150°C. Denovia is claiming something very different — depolymerization in about five minutes.
If that holds outside the lab, it changes the equation. Shorter cycle times mean more throughput from the same system, lower energy use per ton, and less capital tied up in equipment. More importantly, it shifts the economics. Instead of paying to dispose of plastic and textile waste, operators can convert it into a usable chemical output and generate revenue from it.
....................
https://oilprice.com/Energy/Energy-Gene ... risis.htmlUne boite au Canada,DENOVIA, affirme pouvoir recycler le polyester dans les vêtements par dépolymérisations :
[quote] [b][size=120]Denovia Sets a New Global Standard in Textile Recycling, Achieving 98.3% Purity from Waste[/size][/b]
By Spencer Hulse Spencer 23 march 2026
The global textile waste crisis has long demanded a solution equal to its scale. Every year, over 92 million tonnes of discarded clothing and textiles end up in landfills, representing one of the most urgent and underserved environmental challenges of our time. Today, Denovia has answered that call. The company has successfully demonstrated, at a commercial scale, the ability to transform contaminated, post-consumer textile waste into terephthalic acid monomer — the essential building block from which polyester is made — with an independently verified purity of 98.3%, equivalent to virgin-state production.
This milestone is not a laboratory result. It was achieved using real-world, contaminated textile feedstock — the kind of mixed, blended, and soiled material that makes up the vast majority of what is collected at donation centres and textile diversion programs across North America. The result is a proven, scalable solution that changes what is possible for the circular textile economy.
A Solution Built for the Real World
The textile recycling challenge has always been defined by complexity. Most discarded garments are not made of a single material — they are blends of polyester, cotton, nylon, and other fibers, often contaminated with dyes, coatings, and finishes. This complexity has historically made meaningful recycling nearly impossible at scale, forcing even well-intentioned organizations to send the majority of collected textiles to landfill.
Denovia’s technology was purpose-built to solve this problem. Rather than requiring clean, sorted, single-fiber inputs, the system is designed to process the messy, real- world feedstock that defines the textile waste stream. The output speaks for itself: independently verified, third-party lab test results confirm a terephthalic acid monomer purity of 98.3%. To put that in plain terms: terephthalic acid is the core raw ingredient used to manufacture polyester — the same material found in clothing, bottles, and packaging around the world. Producing it at 98.3% purity from waste means the recovered material is, in practical terms, indistinguishable from what a petrochemical plant would produce from scratch. It meets the most demanding quality specifications in the industry and can re-enter the supply chain as a direct substitute for virgin material.
“What we have achieved is not just an incremental improvement; it is a fundamental shift in what textile recycling can deliver. Our technology handles the complex, blended materials that have historically been impossible to recycle, and it does so with remarkable efficiency and output quality. This is the solution the world has been waiting for.”
Denovia is confident that with continued optimization, output purity will surpass even the current 98.3% benchmark in the very near future, pushing the boundaries of what recycled materials can achieve and bringing the industry closer than ever to a truly closed loop.
Beyond Polyester: A Vision for the Entire Waste Stream
............................
[/quote]
https://gritdaily.com/denovia-sets-new-global-standard-textile-recycling/
et
[quote] A Chemical Breakthrough That Could Fix the Plastic Crisis
By Michael Scott - May 05, 2026
.................
The company has demonstrated that mixed, contaminated textile waste can be broken down into terephthalic acid at 98.3% purity, approaching virgin-grade quality. And it can do it in a fraction of the time any other technology has managed so far. If that holds at scale, it could mark a new beginning for our forever synthetics and a new era for plastics.
.................
Denovia’s technology originated from a collaboration with a group of expert scientists who had been developing the underlying chemistry for roughly six years . At its core, the process uses a proprietary liquid to break down plastics at the molecular level. Waste material such as PET bottles or polyester textiles is first shredded to increase surface area, then introduced into the solution, where heat and pressure trigger rapid depolymerization.
In practical terms, the system splits long polymer chains back into their original chemical building blocks, such as terephthalic acid and monoethylene glycol, within minutes. These monomers are then purified and reused to produce new, virgin quality plastic, effectively resetting the material to its original state rather than degrading it through traditional recycling methods.
Denovia’s edge comes down to how quickly and efficiently the process works compared to what’s out there today. Most competing technologies take far longer to break plastics down and require significantly higher costs to operate, and many still haven’t proven they can generate meaningful revenue at scale.
In contrast, Denovia’s process brings depolymerization down to minutes, not hours, using moderate heat and a system that can reuse the majority of its input liquid. From what the company has seen, few, if any, technologies appear to match it on speed, economics, and output quality.
Published research shows how slow and energy intensive traditional plastic recycling still is. Most PET depolymerization today runs in the range of 30 to 180 minutes and often at temperatures well above 150°C. Denovia is claiming something very different — depolymerization in about five minutes.
If that holds outside the lab, it changes the equation. Shorter cycle times mean more throughput from the same system, lower energy use per ton, and less capital tied up in equipment. More importantly, it shifts the economics. Instead of paying to dispose of plastic and textile waste, operators can convert it into a usable chemical output and generate revenue from it.
....................
[/quote]
https://oilprice.com/Energy/Energy-General/A-Chemical-Breakthrough-That-Could-Fix-the-Plastic-Crisis.html