Reduction of traditional pollutants and polychlorinated dibenzo-p-dioxins and dibenzofurans emitted from a diesel engine generator equipped with a catalytic ceramic fiber filter system

Sheng Lun Lin, Ria Aniza, Yen Yi Lee, Chin Liang Wang

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

A series of electrostatic precipitator-selective catalytic reductions can capture particulate matters and oxidize polychlorinated dibenzo-p-dioxin and dibenzofurans (PCDD/Fs) in most of industrial and vehicle emissions; however, the catalyst is easily poisoned by sulfur and metals during long-term operation. A catalytic fiber filter was developed, which coats a thin catalytic layer on the filter to reduce particulate matters and PCDD/Fs. Even though it exhibits high removal efficiencies, it still has similar poisoning issues. In this study, an attempt is made to distribute V2O5/TiO2 powders into ceramic fibers (Al2O3·SiO2·H2O) to form a self-protected catalytic ceramic fiber filter used to treat diesel engine generator emissions at 150–350 °C. The highest removal efficiency of PCDD/F toxicity was 99.4% at 175 °C. However, the de novo synthesis occurred within a range of 250–350 °C and lowered the removal efficiency. Additionally, the particle removals approached 94.4–98.5%, while those of carbon monoxide and nitrogen oxides were > 90 and > 50% at different temperatures, respectively. Consequently, the catalytic ceramic fiber filter may be effective to inhibit both traditional and PCDD/F emissions under specific operational conditions. Air quality control policies could thus be more stringent, and after this new technique is employed, the environment would be cleaner and healthier.

Original languageEnglish
Pages (from-to)1297-1309
Number of pages13
JournalClean Technologies and Environmental Policy
Volume20
Issue number6
DOIs
Publication statusPublished - 2018 Aug 1

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Management, Monitoring, Policy and Law

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