Plastics have very LONG carbon chains, usually with many double bonds, and very little hydrogen.
Which plastics? The most common ones, polyethylene and polypropylene, which this method is designed to process, are entirely hydrogen and carbon, with no double bonds. I don't dispute that additional hydrogen is necessary to crack the polymers into shorter ones, but your description of plastics does not seem to be completely correct.
Which plastics? The most common ones, polyethylene and polypropylene, which this method is designed to process, are entirely hydrogen and carbon, with no double bonds. I don't dispute that additional hydrogen is necessary to crack the polymers into shorter ones, but your description of plastics does not seem to be completely correct.