CONVERSION OF PLASTICS INTO FUELS

Plastic have become an integral part of our lives. Since plastics are relatively low cost and being easily available have brought a use and throw away culture. Each year more than 100 million tones of plastics are produced worldwide because of use and throw culture so plastics waste management has become a problem worldwide.In this paper, the process of converting waste plastic into value added fuels are explained which a solution for recycling of plastics become. Thus two universal problems - Problems of waste plastic , Problems of fuel shortage are being tackled simultaneously. The waste plastics are subjected to depolymerisation, fractional distillations to obtain different value added fuels such as petrol, kerosene, and diesel, lube oil, furnace oil traction and coke. The process of waste plastic into fuels can literally change the economic scenario of our country. Thus, the process of converting plastics to fuel has now turned the problems into an opportunity to make wealth from waste.

Generally any waste plastic treatment involves sorting operation, which is a time & energy consuming process .In this process waste plastic can be utilized without any sorting (or) cleaning operation.

The process consists of following operations A. DEPOLYMERISATION: 1. Loading of waste into the reactors. 2. Depolymerisation of the waste plastic. 3. Collecting the liquid distillate 4. Collecting the combustible gases. B. FRACTIONAL DISTILLATION: 1. Loading of distillate into the distillation furnace 2. Collecting the fraction of liquid distillate from the distillation tower

The waste plastic from the landfills are segregated and stored in the storage tank. Using hot air to the reactor where depolymerisation takes place conveys it. The depolymerisation of waste plastic under control batch reactor results in conversion of waste plastic in a mixture of fuels at atmospheric pressure and ambient room temperature.

Three million tones of waste plastics are produced every year in the U.K.alone, only 7% of which is recycled. In the current recycling process usually the plastics end up at city landfills or incinerator. As with any technological trend, the engineering profession plays an important role in the disposal of plastic waste. Discarded plastic products and packaging materials make up a growing portion of municipal solid waste.Since, the plastics are non-biodegradable, the development in biodegradable plastics are still lagging behind. So it is essential to convert the plastics for some useful purposes in order to reduce the waste plastics to environment. . Thus, the process of converting plastics to fuel has now turned the problems into an opportunity to make wealth from waste.This paper is of greater importance in the present Indian scene in view of the serious energy crisis and is in the interest of national economy. India has been used as a dumping ground for plastic waste, mostly from industrialized countries like Canada, Denmark, Germany, UK, Netherlands, Japan, France and the United States. Each year more than 100 million tones of plastic are produced worldwide. Though plastics have opened the way for a plethora of new inventions and devices it has also ended up clogging the drains and becoming a health hazard. The plastic waste accounts to about 5600 tons per day in India. At these alarming levels of waste generation, India needs to set up facilities for recycling and disposing the waste.

                  

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