GoKawiilAs the world electrifies, the oil and gas industry is counting on plastics to drive profits in the future. But not if Jacob Nathan has anything to say about it.
Nathan started searching for a way to break down plastics when he was still in high school. Now, as founder and CEO of Epoch Biodesign, he has found a way to use a series of enzymes to “transform this unnatural waste” into a form ready to make more plastic, he told TechCrunch.
“For us, a bale of textile is the equivalent of a barrel of oil,” Nathan said, meaning that waste fabric, not petroleum, is the raw material Epoch starts with. And unlike a barrel of oil, the price of that feedstock won’t depend on the weekly whims of world leaders.
Epoch’s approach centers on breaking down pre- and post-consumer plastic waste into monomers — the basic building blocks from which plastic is made. To do that, it relies on enzymes, the molecular machinery of cells. But because biology can be fickle, the company uses only the enzymes, not the microbes that produce them. To source the compounds, Epoch is working with industrial suppliers, which already make enzymes by the ton.
By using a cascade of enzyme treatments, Epoch can recover more than 90% of the desired monomers. “The only thing that’s left over after our process are dyes, which are captured and can be dealt with separately,” Nathan said.
The process is first being applied to nylon 6,6, a high-strength synthetic material that’s used in everything from clothing to airbags to carpets to climbing ropes.
“It’s the original synthetic fiber. It’s what the guys at DuPont were cooking up. The reason we still use it is it’s really good at what it does. We can’t really replace it in all these applications,” Nathan said.
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