Method and apparatus for filtering hot syngas

Details Method and apparatus for filtering hot syngas Method and apparatus for filtering hot syngas

C - Chemistry, Metallurgy

10

K

C10K 1/02 (2006.01) B01D 46/24 (2006.01)

Patent

CA 2298411

A method and apparatus for filtering oxidizable particles from hot synthesis gas or syngas uses a pair of candle filters each having an inlet side for receiving the hot unfiltered syngas to be filtered, and an outlet side for discharging hot filtered syngas. One housing contains both filters or a separate housing is provided for each filter. Each housing has an inlet for receiving hot unfiltered syngas and for supplying the hot unfiltered syngas to each of the filter inlet sides. Each housing also has an outlet for discharging hot filtered syngas from each of the filter outlet sides. Air is supplied to each housing for supplying combustion air alternately to each of the candle filters for burning oxidizable particles trapped on each respective filter to clean each filter while the other filter is filtering the hot unfiltered syngas. One or more switching valves are connected to the combustion air supplies for alternating the supply of combustion air between the candle filters.

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