Progress in catalytic pyrolysis of municipal solid waste

Thermic pyrolysis of polypropylene waste as a source of fuel

“…Pyrolysis has been chosen by many researchers since the process is able to produce a high amount of liquid oil up to 80 wt% at a moderate temperature around 500 ºC (Ledesma Montaño, 2017). The liquid oil produced can be used in multiple applications such as furnaces, boilers, turbines, and diesel engines without the need of upgrading or treatment (Li et al, 2020). Plastic selected for this investigation was polypropylene (PP), it is widely used in the industry due to lower density, respect other plastics such as high-density polyethylene (HDPE) which has higher hardness and rigidity.…”

Catalytic Pyrolysis of Municipal Solid Waste: Effects of Pyrolysis Parameters

“…Today, municipal solid waste (MSW) production has been enhanced by the increase in population and the demand by citizens for luxury lifestyles [1,2]. More than 2 billion tons of MSW are produced annually, and 218 kg of MSW are produced per person [3], which affects the environment because MSW occupies land, contaminates the soil and groundwater, and produces undesirable gases [4].…”

“…However, landfilling has long-term effects on human health by contaminating underground water via the emission of gases and organics [6]. Furthermore, the incineration method has been investigated to produce energy from MSW through combustion [2,7]. This method could minimize the accumulation of MSW in the ground; however, it significantly influences the environment by increasing greenhouse gas emissions.…”

“…In the last two decades, thermochemical treatments of MSW to produce oil and chemical have been a tremendous and interesting challenge for researchers and technologists [10][11][12]. One of the thermochemical treatment methods is pyrolysis, which converts MSW into liquid fuel, gases, and char [2,[10][11][12]. The gases that contain light hydrocarbon and CO can be used for energy and heat production.…”

“…In catalytic pyrolysis of MSW, serval catalysts have been investigated and examined, such as zeolites, metal oxides, and metal hydroxide [2]. Different catalysts exhibit specific catalytic activity.…”