Continuous System For Converting Waste Plastics Into Crude Oil

rtoz writes: A MIT spinout company aims to end the landfilling of plastic with a cost-effective system that breaks down nonrecycled plastics into oil, while reusing some of the gas it produces to operate. To convert the plastics into oil, this new system first shreds them. The shreds are then entered into a reactor — which runs at about 400 degrees Celsius — where a catalyst helps degrade the plastics' long carbon chains. This produces a vapor that runs through a condenser, where it's made into oil. Much of the system's innovation is in its continuous operation (video). This company aims to produce more refined fuel that recyclers can immediately pump back into their recycling trucks, without the need for oil refineries. Currently, 2 trillion tons of plastic waste is sitting in U.S. landfills, so there is a huge demand for this technology.

Comments

Re:Oil - Plastic - Back to Oil?

[Lab Rat Jason]

While I totally agree with this, I think it misses the point.

Assuming that plastic is provided for free (cities or landfills are already pulling plastic out via a separation step) then enough energy can be *recovered* from the plastic to power the recovery process with a net gain. The goal is not energy independence... it's prevention of non-biodegradable items making it into the landfill.

There was a story a few months ago about an MIT project to float a collector out into the ocean to pick up plastic... maybe these two teams should get together.