Granular moving bed filters and adsorbers (GM-BF/A) - Patent review: 1970-2000

J. Smid, S. S. Hsiau, C. Y. Peng, H. T. Lee

Research output: Contribution to journalReview articlepeer-review

30 Scopus citations


Granular moving bed filters and adsorbers (GM-BF/A) for hot gas cleanup continue to be developed as a key component of current integrated gasification combined cycle and advanced pressurized fluidized bed combustion power generation systems. This paper contains a review of the patent literature on GM-BF/A equipment with sidewalls provided with a number of louvers or screenless granular moving bed systems. Patents granted to GM-BF/A equipment are categorized in groups according to thedesign characteristics. Non-uniform flow of a granular moving bed (filter medium, sorbent) is discussed in detail.

Original languageEnglish
Pages (from-to)301-345
Number of pages45
JournalAdvanced Powder Technology
Issue number4
StatePublished - 2005


  • Design characteristics
  • Granular moving-bed filters and adsorbers
  • Louver-like walls
  • Patent review
  • Screen-less systems


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