Dear all,

I am facing a problem with scrubber design for acetic acid fumes, acetic anhydride fumes & Benzaldehyde fumes,

No Book clearly describes the detailed design, not even perrys,

How do i find out how much water is required for the recirculation, what will be the saturation and so on,

Please all of you, and if anyone has a software for scrubber design say scrubmaster please upload

Thanks a lot
Dear jhb,

Guess we have a lot in common except for the fume you're treating.

You're indeed true when you told us that no book clearly describes the detailed design. To tell you the truth, Perry's isn't good enough when it comes to designing wet scrubbers. There might be some literatures (such as Calvert, Semrau, Hesketh, Yung, Schifftner etc)that may contain the information you need. But, the literature might not be up to date since it was published around 70-80s (except for Hesketh & Schifftner). It really makes me wondering why it's very difficult to find detail design information (esp. for the equations) for equipment such important as wet scrubber.

I, myself, currently designing the venturi scrubber that is used to cleanse the syngas from tar and other fine dust. I have finished with the collection efficiency and now facing a huge wall called "Equipment Sizing". The sizing is becoming a wall for me since I haven't found any information or equation I desperately need to perform necessary calculation.

To determine the quantity of water needed for recirculation, you need to perform material and heat balance for the scrubber. Of course you have to determine the collection efficiency and pressure drop prior to mass and energy balance. The collection efficiency equation is not hard to find while I have some hard times with the pressure drop equation.

For saturation, I am considering using psychrometric chart to deal with the moisture content at the scrubber's outlet. This one is also giving a hard time for me. But I have confident we can get through.

Hope this will help you. Feel free to discuss it with me.
best regards,
bernath


Does Any one have Book of Wet Scrubbers by Howard D. Hesketh (Author), Kenneth C. Schifftner (Author) ?
I would like to design "Spray Tower scrubber" for Particulate matter removal from Air+water stream. Equation for pressure drop is Required.
Dear Teca,

have you find the pressure drop equation yet? I'd like to exchange few words with you regarding the equations.

thank you and best regards
bernath