Carbon black and hydrogen are two very important commodities in both industrial and energetic fields. Nowadays, they are separately produced from the thermal cracking, distillation, reforming or partial combustion of fossil fuels, with a big environmental impact related to the greenhouse gases emissions of these processes. The co-production of these two materials has been explored in the past by adopting thermal plasma pyrolysis of short hydrocarbons (methane, ethylene), with some good results in pilot plants at industrial scale. The increasing problems of micro-plastic diffusion all over the world and in every kind of environment is highlighting all the concerns about plastic waste disposal and recycling.