Co-pyrolysis of waste polyolefins with waste motor oil

Prototype Co-Pyrolysis of Used Lubricant Oil and Mixed Plastic Waste to Produce a Diesel-Like Fuel

“…The increase in the amount of WMO in all blends led to increase in both the viscosities and specific gravities of the liquid products. The flash point of all liquid products obtained from co-pyrolysis processes were lower than those of commercial diesel (>55 • C) [11]. The distillation temperature at 90% recovery and the cetane index are shown only for the ratio 50:30:20:0 (353 • C and 65, respectively).…”

“…In all cases, near-complete conversion (approximately 90%) with a tendency range of C 1 -C 40 hydrocarbons was achieved. The addition of waste motor oil to waste polyolefins not only increased the liquid yield, but also improved the properties of the liquid product, with greater naphtha and paraffinic contents in the products of the co-pyrolysis oil than in the products of the individual waste polyolefins [11]. However, the proportion of used lubricant oil in the oil/plastic waste blend cannot be more than 50% by raw material weight, because greater oil contents tend to produce oil products that are non-diesel-like [12,13].…”

“…The co-pyrolysis reactors of used oil blended with plastic wastes with various design for a laboratory scale have been reported. Uçar et al [11] reported their study on co-pyrolysis of individual and blended polyolefin wastes and motor oil waste at 500 • C in a fixed bed reactor. The amount of raw materials studied was 100 g. Serrano et al [10] reported thermal and catalytic cracking of a LDPE-lubricant oil base mixture in a continuous screw kiln reactor.…”

Co-Pyrolysis of Low-Density Polyethylene and Motor Oil—Investigation of the Chemical Interactions between the Components

“…In order to alleviate technical limitations related to plastic behavior at high temperature, co-pyrolysis of waste plastics and other materials has been widely considered. Beneficial synergistic effects (increasing gas and liquid yields, decreasing tar and char yields, improvement and stabilization of the pyrolysis products) have been reported for the co-pyrolysis of plastic and biomass [2][3][4][5], plastic and oil shale [6], plastic and cellulose [7], polyethylene and waste newspaper [8], as well as waste polyolefins and waste motor oil [9]. Kim et al [10], in line with one of our previous works [11], show a thermal stabilization effect during the co-pyrolysis of waste automobile lubricating oil and polystyrene (i.e., degradation temperatures of the mixture shifted towards higher values, when compared to the pyrolysis of the pure compounds).…”

Thermal cracking of potato-peel powder-polypropylene biocomposite and characterization of products—Pyrolysed oils and bio-char

“…Recently, a better alternate strategy for degradation of polymers and biocomposite is pyrolysis process, where thermal degradation of long chain polymer molecules into smaller molecules takes place through heat and pressure in the absence of oxygen and product selectivity can be achieved with use of catalysts [6][7]. The reason for the success of pyrolysis process is that the major products formed are oil, gas, and char which are considered as energy products with high calorific value and find their use as fuel to industries and refineries [8][9][10].…”