Study of the gases obtained in thermal and catalytic flash pyrolysis of HDPE in a fluidized bed reactor

✍ Scribed by Maria del Remedio Hernández; Ángela N. García; Antonio Marcilla

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 259 KB
• Volume: 73
• Category: Article
• ISSN: 0165-2370
• DOI: 10.1016/j.jaap.2005.03.001

✦ Synopsis

A fluidized bed reactor was used to study the production of gases from the thermal and catalytic pyrolysis of high-density polyethylene (HDPE). The effect of the bed temperature and type of catalyst was evaluated. The range of operating temperature was from 400 to 800 8C. The catalysts used in this study were HZSM-5 and HUSY in a proportion of 20% by weight. The analysis of the volatile compounds showed that the main products obtained with both catalysts were similar, but the amount of gases produced with HZSM-5 was higher than the amount obtained with HUSY. The major compounds obtained with both catalysts were C 3 and C 4 hydrocarbons (propane, propene, trans-butene, 1-butene, isobutene and cis-2-butene) and C 5 olefins (1-pentene).