An environmentally friendly approach for contaminants removal using supercritical CO 2 for remanufacturing industry

Wei Wei Liu, Bin Zhang, Yan Zeng Li, Yan Ming He, Hong Chao Zhang

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

The cleaning technology plays an important role in product quality during the remanufacturing processing. Remanufacturing cleaning is among the most demanding steps and is a particularly essential process in remanufacturing. In the meantime, remanufacturing cleaning is often the main source of pollution in the remanufacturing process. During the past decades, supercritical fluids due to their unique properties gained an increasingly attention in many cleaning industries. The supercritical carbon dioxide as a novel cleaning technology for remanufacturing cleaning process is discussed, which can realize cleaning and drying at the same time, promoting a greener solution for remanufacturing industry. In this paper, we reported the experimental results of the effect of some operating parameters. The CO 2 at different operating pressures, temperatures and residence time was made to continuously flowing over this. The decontamination rate and amount were monitored and compared. The obtained results show that the optimum parameters were operating temperature and pressure of 60 C and 20 MPa respectively, to have the highest decontamination rate value at the investigated experimental conditions. In additon, the success of supercritical CO 2 cleaning effectively promotes the research for next-generation cleaning methods for remanufacturing industry.

Original languageEnglish
Pages (from-to)142-148
Number of pages7
JournalApplied Surface Science
Volume292
DOIs
StatePublished - Feb 15 2014

Keywords

  • Cleaning
  • Oil and grease
  • Remanufacturing
  • Supercritical carbon dioxide

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