Direct Polypropylene and Polyethylene Liquefaction in CO2 and N2 Atmospheres Using MgO Light and CaO as Catalysts

Materials

Zdeněk Tišler¹  José Miguel Hidalgo Herrador¹  Jakub Frątczak¹  Héctor de Paz Carmona¹  Martyna Murat¹ 

[1] ORLEN UniCRE a.s., Revoluční 1521/84, 400 01 Ústí nad Labem, Czech Republic;

关键词: polyethylene;    polypropylene;    direct liquefaction;    MgO;    CaO;    plastic;   

DOI  :  10.3390/ma15030844

来源: DOAJ

【 摘 要 】

The polyolefin to lighter molecules reaction reduces the waste-plastic residues to produce fuels and valuable chemicals. Commercial MgO light and CaO were used as catalysts for the direct polyethylene and polypropylene liquefaction in N₂ or CO₂ atmospheres. The products were analyzed (ATR-FTIR, GC-FID/TCD, GC-FID, density, refractive index). The use of MgO light and CaO improved the conversion of propylene and ethylene to liquid products. In addition, low gaseous and solid products yields were obtained. A good production of organic liquids in the gasoline, diesel and kerosene boiling range was obtained. The use of CO₂, in some cases, led to a higher conversion into liquids compared with the reactions performed in the N₂ atmosphere. In addition, the use of the CO₂ atmosphere led to a higher content of products with a boiling range in the diesel and kerosene ranges.

【 授权许可】

Unknown