Gasification f waste tyre and plastic (PET) by solar Thermochemical process for solar energy utilization

摘要

Waste tyre and plastic such as polyethylene terephthalate can be utilized as a useful material for conversion of solar energy into chemical energy by solar thermochemical gasification into synthesis gas (CO+H_2) using concentrated solar energy. In the present paper, the gasification of waste tyre (C: 86 wt./100, H: 8.4 wt./100) and of PET (C_10H_8O_4)_n, were studied using ZnO as a donor of oxygen in the infra-red furnace at 1373 K. For the gasification of tyre, most of the chemically bound hydrogen was converted into H_2(62 /100) and CH_4 (29 /100) gases, while 71 mole/100 of the inherent carbon was gasified to CO (36 /100), HC_4 (29 /100), C_2H_4 (2 /100), And CO_2 (4 /100) in 200 s of the decomposition reaction.