Air Pollution Control Innovations

Coal Dryer Scrubber, Venturi Scrubber-Condenser System

Posted by Andy Bartocci on Wed, Jul 04, 2012 @ 08:15 AM

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I will be giving a presentation at the 2012 Coal-Gen Conference on a Coal Dryer Scrubber for Integrated Gasification Combined Cycle Power (IGCC).  The conference will be held inCoal Dryver Venturi Scrubber Louisville, KY at the International Louisville Convention Center, August 15-17th, 2012.   The presentation will be given between 1:30 pm to 3:00 pm on Wednesday, August 15th in Section 4A, Particulate Control in Material Handling System.

The scrubber is an innovative design for a large volumetric flow rate (2.1M cfm) Venturi Scrubber – condenser system.  Below is the abstract for the presentation. 


A 582-megawatt (MW) electric generating plant in the South Eastern United States is scheduled to be operational in 2014.  The facility uses state-of-the-art gasification technology and is an Integrated Gasification Combined Cycle (IGCC) plant.  The process uses locally mined lignite coal for fuel.  The coal has high moisture and must be dried before it is converted to syngas in the gasification process. The coal dryer uses nitrogen for the carrier gas which passes through a Venturi Scrubber-Condenser System to remove particulate and condense moisture before it is re-circulated back to the dryer. The Venturi Scrubber-Condenser System is sized for over 2.1 million cubic feet per minute (cfm) of gas divided into 6 trains.

Coal Dryer Condenser

Two arrangements for meeting the specification requirements were evaluated for the system design including: 1) a single train consisting of one Venturi scrubber and one cyclonic separator-condenser per train, and 2) a modular arrangement consisting of four separate Venturi’s and four cyclonic-separator-condensers per train.  This presentation will discuss the design considerations in evaluating the optimum arrangement and the derived benefits from the final configuration.   Some of the benefits include lower capital and installation cost, better corrosion resistance, smaller footprint, and greater operating performance.






To view an installation video of the Coal Dryer Venturi Scrubber-Condenser, click on the icon below.

Free Video

 To download the 2012 Coal-Gen Conference presentation, click on the icon below.

Download Free Presentation