Reduction of carbon dioxide in hydrothermal cracking of polymer wastes

Xu Zeng, Fangming Jin, Zhibao Huo, Takeo Mogi, Atsushi Kishita, Heiji Enomoto

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


An innovative technology that reduces CO2 into organic compounds such as formic acid during the hydrothermal cracking of ethylene propylene diene monomer (EPDM) was discussed. The reduction process was accompanied by the conversion of EPDM into fuel oils. The analytical results of gas samples with and without CO2 showed that the concentrations of hydrocarbons with 1-6 carbon atoms were significantly higher in the presence of CO2 than those in the absence of CO2, particularly for methane at 450° C. The highest efficiency for CO2 reduction was about 20%, which occurred at 450° C with a reaction time of 2 h. The amount of hydrocarbons, the alkanes from the hydrothermal cracking of EPDM, with 2-6 carbon atoms also increased in the presence of CO2. Hydrogen and methane were found to be the major components of the gas samples. The formation of formic acid was also clearly observed.

Original languageEnglish
Pages (from-to)2749-2752
Number of pages4
JournalEnergy and Fuels
Issue number6
Publication statusPublished - 2011 Jun 16

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Energy Engineering and Power Technology
  • Fuel Technology


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