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Mobile Reactor That Converts Plastic Waste To Diesel All Set For Debut

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Swaminathan Ramesh, an India-born chemist, has developed a technology that helps convert plastic waste into fuel, which will soon make its debut in California in a demonstration project.

Swaminathan Ramesh, a student of the Indian Institute of Science (IISc) Bengaluru, is President of Michigan-based EcoFuel Technologies.

Ramesh, whose company developed the PTF units in partnership with James Holm, founder of Clean Oceans International, a Santa Cruz, CA, based non-profit, said the goal is to rid the world of plastic waste by creating a market for it.

The researchers presented their results on April 3 at the 253rd National Meeting & Exposition of the American Chemical Society (ACS) in San Francisco.

Piling plastic waste poses a serious threat to marine life and beaches.

According to the United Nations Environment Programme (UNEP), more than eight million tonnes of plastic finds its way into the oceans annually — which is roughly equivalent to dumping an entire garbage truck of plastic into the oceans every minute.

The UNEP had warned that by 2050, “the plastic in our oceans would weigh more than all the fish combined”.

“Pyrolysis”, the technology used to break down plastic waste to obtain hydrocarbon-based fuel, has been known for years. But this calls for complex and costly refining steps to make the fuel usable.

Ramesh set out to change the game and developed a “metallocene” catalyst deposited on a porous support material that, coupled with a controlled pyrolysis reaction, directly yields diesel without further refining. It is also cost-effective on a small scale, runs at lower temperatures and is mobile.

Storage and transport of plastic waste to land-based sites is no longer needed since the PTF reactor can be placed aboard vessels engaged in retrieval of floating plastic wastes and the converted fuels can be directly used for running these vessels.

That plastic stream, it said, “can be diverted from the ocean and converted to 20-50 million barrels of liquid fuel annually by the PTF reactors.”

India is reportedly among countries that contribute most to plastic debris in the ocean.

Kerala, which generates 6,000 tonnes of plastic waste every day is already toying with the idea of using waste plastics to make bricks that can be used to make footpaths and pave roads

Asked if any recycling industry or government agency in India has shown interest in the PTF technology, Ramesh said: “I have not had much success with generating too much interest in India (I have not tried too hard anyway). I am open to any prospects.”

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