Purpose: of this paper is to investigate the reusability of contaminated waste lubricant oil
as flammable fuel by thermal and catalytic cracking process followed by distillation. It also
includes the study of using Zeolite and Nickel nano particles as catalyst and its influence
catalytic cracking.
Design/methodology/approach: A conventional sterilization technique called Autoclaving
method, uses high-pressure steam to separate water and other solid waste from the lube oil.
It is followed by thermal cracking which breaks the molecular chains and decompose the
waste lube oil. The autoclaving process works by the concept that the boiling point of water
(or steam) increases when it is under pressure.
Findings: Now a days, Industrial and Automobile waste lubricating oils are giving big threat
ecology while burning and disposing on bare land. Furthermore, they discharged into the
open environment which might make destructive sicknesses to ecology. In water, oil is a
visible pollutant, floating as a scum on the surface. Moreover, there is a gradual rise in fuel
requirement across the globe, and the consumption of oil assets have driven the researchers
to find elective power for internal combustion engines. By the way, diminishing of fossil
sources, growing of demand and cost of petroleum based fuels and its environmental
hazards as a result of burning or disposing on land have encouraged to investigate
possibility of recycling of waste engine oil.
Research limitations/implications: A series of process such as filtration, cracking
followed by distillation needs expensive experimental setup and regular maintenance as the
extracted flammable oil fuel possess significant range of dynamic viscosity values. As all real
fluids has its own viscosity, in near future, an investigation is about to do on its behaviour on
blending with other flammable fluids.
Practical implications: Although the result of this investigation conforming its flammable
characteristic of the extracted fuel, the quantity of pollutant free flammable fuel from waste
contaminated lube oil being extracted is significant, the cost of catalyst is considerably
more, as it plays the most vital part in cracking. This effort likely also reduces foreign
exchange, reduces greenhouse emissions and enhances regional development especially
in developing countries.
Originality/value: The novelty of the work is to prepare pollutant free flammable fuel from
waste Lube oil by catalytic cracking process. Here Zoelite and Nickel nanoparticles are used as catalyst which breaks the long-chain molecules of the high boiling hydrocarbon liquids into much shorter molecules.