Microwave-assisted pyrolysis of low-density polyethylene (LDPE)to value-added products over HY, HZSM-5 and Hβ catalyst

Materials Today Communications, Journal Year: 2024, Volume and Issue: unknown, P. 110829 - 110829

Published: Oct. 1, 2024

Language: Английский

Upcycling of Polyethylene Wastes to Valuable Chemicals over Group VIII Metal‐decorated WO₃ Nanosheets

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 6, 2024

Abstract Catalytic cracking of polyolefin wastes into valuable chemicals at mild conditions using non‐noble metal catalysts is highly attractive yet challenging. Herein it reported that 2D tungsten trioxide (2D WO 3 ) nanosheets, after decorating with group VIII promoters (i.e., Fe, Co, or Ni), convert high‐density polyethylene (HDPE) alkylaromatics and olefins low temperature ambient pressure without any solvent hydrogen: Ni/WO abundant Brønsted acidic sites initiates HDPE a 240 °C; Fe/WO energy barrier cyclization achieves high conversion to 84.2% liquid hydrocarbons selectivity 30.9% aromatics 300 °C. In‐situ spectroscopic investigations supplementary theoretical calculations illustrate these are formed through the alkene intermediates. These also display efficiency in low‐temperature single‐use commercial such as packaging bags bottles. This work has demonstrated potential efficient upcycling waste conditions.

Language: Английский

Catalytic Conversion of Chitin Biomass into Key Platform Chemicals

Chemical Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

This feature article highlights recent progress in shell waste biorefinery, focusing on chitin extraction, upgrading to key chemicals and future research trends.

Language: Английский