Design, construction, and performance testing of a fixed-bed pyrolysis reactor for production of pyrolytic fuel

Abstract

In an attempt to produce fuel from plastic waste, a cylindrical fixed-bed pyrolysis reactor with a capacity of 0.01053 m3 was designed and fabricated. The pyrolytic fuel produced serves as a substitute to fossil fuel. A thermal degradation process, known as fixed-bed pyrolysis, was employed to obtain the pyrolytic fuel from the plastic waste. The operating pressure and the design pressure of the pyrolysis reactor are 25.16 MPa and 28.93 MPa, respectively. The performance testing of the reactor shows that the pyrolytic fuel has higher calorific value, flash point, cetane rating, and density of 39.5 MJ kg−1, 72.5 °C, 40.5, and 804.0 kg m−3, respectively. The corresponding values for the fossil fuel (diesel) are 44.8 MJ kg−1, 68.0 °C, 48.0, and 820.0 kg m−3, respectively. It was confirmed through the performance testing that the reactor was properly designed and can, therefore, be reliably used to produce pyrolytic fuel, which can be made use of as a good alternative to fossil fuel.

Analysis of Fuel Alternative Products Obtained by the Pyrolysis of Diverse Types of Plastic Materials Isolated from a Dumpsite Origin in Pakistan

“…After a preliminary pyrolysis pilot study using glass equipment (see Supplementary Materials Figure S2 ), pyrolysis was carried out in a steel reactor. Figure 1 depicts the pyrolysis reactor utilized in the investigation, which corresponded to the design used by Oni and Ayodeji [ 54 ] and Kumar and Singh [ 55 ] in their studies. It encompasses a condensation unit and a stainless-steel container.…”

Studies on CRDI diesel engine performance and emissions using waste plastic oil and fly ash catalyst

“…It is due to the fact that the main cause of the increased delay in ignition in the diesel-waste plastic oil blends is their chemical makeup. The influencing parameters are the feedstock materials used, the operating temperature, and the temperatures at which crude oil distillation occurs during the pyrolysis process [29].…”

“…The trend was observed in opposite directions when there was a further increase in the fuel blend ratio from 20% to 30%. Therefore, based on analysis, the optimum BTE was found to be for the tested fuel blending proportion of 20%, which is also regarded the maximum performance point [9,[13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]. Furthermore, the WPO viscosity is higher, which affects fuel atomization process and vaporisation, leading to inadequate fuel spray generation and insufficient combustion within the engine cylinder.…”

Real-time experimental investigation of a multi-flow biomass gasifier by using various locally available wood biomass

“…As the feedstock particles are heated during the drying process, moisture is drawn out of them. The pyrolysis phenomenon decomposes the biomass feedstock into char, volatiles, and tar after drying and raising the temperature [9,10]. These pyrolysis products reach the oxidation zone where charcoal with volatiles reacts with a restricted oxidizing agent which leads to an increase in the temperature as this reaction is exothermic.…”