Pyrolysis-catalytic steam reforming of waste plastics for enhanced hydrogen/syngas yield using sacrificial tire pyrolysis char catalyst

Pyrolysis-catalytic steam reforming of waste plastics to produce hydrogen-rich syngas has been investigated using tire char as a sacrificial catalyst in two-stage pyrolysis-catalytic reactor system. The simultaneous the pyrolysis volatiles and ‘sacrificial’ gasification increased overall yield hydrogen gas products. Manipulating temperature, input, catalyst:plastic ratio influenced yield. presence metals such Zn, Fe, Ca Mg char, play catalytic role reactions. production achieved when temperature was 1000 °C weight hourly space velocity 8 g h−1 g−1 135 mmol H2 g-1plastic 92 CO g-1plastic. However, increasing amount (4:1 ratio) enabled yields 211 total 360 be achieved.