Capital cost for Venturi Scrubbers

Venturi scrubber costs are based on data for two ranges of gas flowrates. Cost curves for scrubbers treating less than 19,000 ACFM are provided in Figure 1. Cost curves for venturi scrubbers capable of handling greater than 19,000 ACFM but less than 59,000 ACFM are shown in Figure 2. For total flowrates greater than 59,000 ACFM, the gas stream should be divided evenly and treated by two or more identical scrubbers (with inlet flowrates of <59,000 ACFM) operating in parallel.

The most common construction material for venturi scrubbers is carbon steel. Special applications may require other materials, such as rubber-lined steel, epoxy-coated steel, fiberreinforced plastic (FRP), that will increase the cost of the unit. Separate cost curves for carbon steel and other specialized materials are included in Figures 1 and 2.

Figure 1. Venturi Scrubber Capital Costs, Inlet Flowrate < 19,000 ACFM

Figure 2. Venturi Scrubber Capital Costs, Inlet Flowrate >19,000 ACFM, <59,000 ACFM