Abstract
This paper presents the plant design for fuel production from plastic waste. The types of plastics to be used for the fuel production include polyethylene, polypropylene and polystyrene. All these materials are to be sourced from Kpone landfill site in Accra, Ghana, where the plant is to be situated. The major fuels produced are gasoline, diesel and kerosene with a plant capacity of approximately 1000 tons of plastic waste per day and its attainment is 95%. The production process involves sorting the municipal solid waste to obtain suitable plastics. The plastics are extruded and cracked thermally in a Pyrolyzer and the gases from it are reformed over Zeolite-ZSM 5 as the catalyst in a reactor. Resulting vapours are fractionated in a column to obtain the various fuel components. The plant operates 24 hours/day and 347 days/year with 3 shifts per day of 8 hours per shift. Total capital required to build and start up the plant amounts to approximately 17 Million US Dollars. The plant life is 25 years with an annual rate of return of 34% and a payback period of 2.9 years for this project, after setting up. Annually, the plant would generate gross and net profits of approximately 9 Million US Dollars and 6.7 Million US Dollars respectively.
Highlights
IntroductionAs the world strives to develop, urbanization and industrialization have resulted in rapid increase in the amount of waste produced every year
This paper presents the plant design for fuel production from plastic waste
One of the fuel products from plastic waste obtained by pyrolysis and further catalytic upgrading is the fuel oil
Summary
As the world strives to develop, urbanization and industrialization have resulted in rapid increase in the amount of waste produced every year. One of the fuel products from plastic waste obtained by pyrolysis and further catalytic upgrading is the fuel oil. It is a mixture of C5 - C30 hydrocarbons. Designing a chemical processing plant to produce liquid fuels i.e. diesel, gasoline, kerosene and residual fuel oil, from the plastic waste in the Kpone Landfill, is the main motivation for undertaking this project.
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