Production of Value Added Products from Used Tyres Through Pyrolysis
PRODUCTION OF VALUE ADDED PRODUCTS FROM USED TYRES THROUGH PYROLYSIS
ABSTRACT
Pyrolysis has the potential of transforming used tyres into useful recyclable products. This paper demonstrates the conversion of scrap tyres into its primary products which are Pyro Oil and Carbon Black and a secondary value added compound, Activated Carbon. Further, the objectives of the work also include optimization of parameters such as temperature and feed size to study the efficiency of pyrolysis at different conditions. Three different set ups are used for pyrolysis namely the lab scale pyrolysis unit, the pilot plant scale pyrolysis unit and a conventional unit.
INTRODUCTION
. The usage of vehicles has become inevitable in our lives today. Waste to energy is the recent trend in the selection of alternate fuels. In order to prevent waste rubber and particular discarded automobile tyres from damaging the environment, it is highly desirable to recycle this material in a useful manner. However, the total quantity of tyres currently recycled in a given year (excluding reuse, retreading, or combustion) is less than 7 percent (James et al) of the annual tyre generation rate in the world. Therefore, the number of tyres being generated every day and hence that are dumped as waste every day is increasing drastically.
Presently there are various disposal methods such as Tyre Retreading, Illegal dumping, Incineration, Landfill etc. But these have created many environmental problems. The most commonly reported potential environmental impacts associated with tyre storage are the compounds leaching from the tyres and contaminating soil, groundwater and surface water; tyre fires causing the release of pyrolytic oils and other compounds into the soil and groundwater and smoke; tyre piles may become breeding grounds for insects, particularly mosquitoes, rodents and other animals. Higher value added products obtained through tyre pyrolysis was a profitable alternative for waste tyre
ABSTRACT
Pyrolysis has the potential of transforming used tyres into useful recyclable products. This paper demonstrates the conversion of scrap tyres into its primary products which are Pyro Oil and Carbon Black and a secondary value added compound, Activated Carbon. Further, the objectives of the work also include optimization of parameters such as temperature and feed size to study the efficiency of pyrolysis at different conditions. Three different set ups are used for pyrolysis namely the lab scale pyrolysis unit, the pilot plant scale pyrolysis unit and a conventional unit.
INTRODUCTION
. The usage of vehicles has become inevitable in our lives today. Waste to energy is the recent trend in the selection of alternate fuels. In order to prevent waste rubber and particular discarded automobile tyres from damaging the environment, it is highly desirable to recycle this material in a useful manner. However, the total quantity of tyres currently recycled in a given year (excluding reuse, retreading, or combustion) is less than 7 percent (James et al) of the annual tyre generation rate in the world. Therefore, the number of tyres being generated every day and hence that are dumped as waste every day is increasing drastically.
Presently there are various disposal methods such as Tyre Retreading, Illegal dumping, Incineration, Landfill etc. But these have created many environmental problems. The most commonly reported potential environmental impacts associated with tyre storage are the compounds leaching from the tyres and contaminating soil, groundwater and surface water; tyre fires causing the release of pyrolytic oils and other compounds into the soil and groundwater and smoke; tyre piles may become breeding grounds for insects, particularly mosquitoes, rodents and other animals. Higher value added products obtained through tyre pyrolysis was a profitable alternative for waste tyre