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Vertical Flow Scrubbers

Vertical Flow Packed Bed Systems Control Fumes / Gases, are Ideal for Gas Streams with High Loading 

Tri-Mer packed scrubbers are highly recommended for the prevention and efficient removal of inorganic gases, odors, and vapor fumes. They are well-suited for use as primary or secondary systems in conjunction with thermal oxidizers, and are also used in a series where there are multiple-contaminant gas streams. Vertical Flow Scrubbers are suitable for chemical processes, metal finishing process, semiconductor manufacturing and dozens of other industrial operations generating fumes and gases. 

View our 8 page Packed Bed 
Tower Scrubber Brochure as an Acrobat pdf file. 

Optimum system performance is achieved with systems that combine intimate 
gas/liquid mixing and low pressure drop. 

There are several factors which influence the design of these systems: 

Air flow through the scrubber, based on cubic ft/min. This is determined by the process to be handled by the scrubber, through information provided by customer and Tri-Mer analysis. 
System capacities of heavy service range to 100,000 cfm and above. 

Internal vs. external recirculation system, fan location in relation to tower, duct sizes, 
inlet and outlet plus location of pump systems, tower access service ports, service 
platform requirement all influence layout. Standard construction materials include: 
polypropylene, fiberglass and PVC. Optional materials include high alloy metals 
such as stainless and Hastelloy. Also dual-laminate structures incorporating 
FRP over PVC, PP, PVDF and Teflon liners are available. 

Removal efficiency of scrubber: inlet vs. outlet requirement, based on mass emission in lbs/hr. in vs. lbs./hr. out. 

Factors to consider in calculating removal efficiency are: 
  1. Contaminant flow composition 
  2. Contaminant solubility 
  3. Chemistry that will react with contaminants 
  4. Reaction speed 
  5. HTU (height transfer unit) factors required for specified removal efficiency (packing depth) 
  6. Liquid-to-gas ratio 
  7. Velocity 
  8. Gas temp. up to 2000°F with Q-Scrub quench option 
Using this information and other factors specific to the site, Tri-Mer engineers determine the optimum tower diameter, packing depth, recirculation flow rate, and mist eliminator requirement. These calculations form the basis for a layout similar to the above photograph. 

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