Parametric study of glycerol and contaminants removal from biodiesel through solvent-aided crystallization.

At present, biodiesel is known as an alternative fuel globally. It is also known that the purification of biodiesel before consumption is mandatory to comply with international standards. Commonly, purification using water washing generates a massive amount of wastewater with a high content of organic compounds that can harm the environment.

Steam reforming of polystyrene at a low temperature for high H/CO gas with bimetallic Ni-Fe/ZrO catalyst.

Recovery of chemicals and fuels from unrecyclable waste plastics at high temperatures (>800 °C) has received much research attention. Thermodynamic equilibrium calculation suggests that it is possible to perform the low-temperature steam reforming of polystyrene. In this study, we synthesized a Ni-Fe bimetallic catalyst for the low-temperature (500 °C) steam reforming of polystyrene.

Catalytic dry reforming of waste plastics from different waste treatment plants for production of synthesis gases.

Catalytic dry reforming of mixed waste plastics, from a range of different municipal, commercial and industrial sources, were processed in a two-stage fixed bed reactor. Pyrolysis of the plastics took place in the first stage and dry (CO) reforming of the evolved pyrolysis gases took place in the second stage in the presence of Ni/AlO and Ni-Co/AlO catalysts in order to improve the production of syngas from the dry reforming process. The results showed that the highest amount of syngas yield was obtained from the dry reforming of plastic waste from the agricultural industry with the Ni/AlO catalyst, producing 153.