The researchers explained that the world produces more than 300 million tons of plastic waste every year. This
To deal with this problem, scientistsused catalytic pyrolysis to convert plastic waste into fuel. Pyrolysis is the thermochemical decomposition of a carbon-based substance. Researchers have focused on recycling plastic and converting it into other products or converting it to steam using heat. The process also converts primary organic waste into sustainable fuels or other valuable chemicals.
“The innovative part of the experiment is ourcatalyst, - noted the author of the work Mingheng Lee. "It is critical to this pyrolysis process because it only takes one step to get the desired fuel product at relatively low temperatures."
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The catalyst was prepared by immersion in a zeolitesubstrates in an aqueous solution containing nickel and tungsten, and then dried in an oven at a temperature of 500 ° C. The synthesized catalyst was used in combination with a laboratory-developed one-stage pyrolytic reactor that was operated at a predetermined temperature of 360 ° C to break bonds in a mixture of plastic bags.
The catalytic process used inexperiment for plastic waste, can also be used to process other waste such as manure, municipal solid waste and waste engine oil to produce useful energy products. The researchers found that the pyrolysis product was very similar to standard diesel fuel using gas chromatography analysis - a type of chromatography used in analytical chemistry to separate and analyze compounds that can evaporate without decomposition.
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