Raschig Rings For Air Pollution Control

Raschig rings for air pollution control are tubular metal pieces of equal length and diameter that are commonly used as packing material for distillation towers. With an optimal surface-to-volume ratio that maximizes mass transfer and an open structure that promotes contact between process stream and material of Raschig rings, these devices make an effective means of separating and collecting chemical fractions, absorption stripping, chemical reaction applications and absorption/stripping processes.

These rings can be made of different materials such as ceramic, metal, or plastic. Metal raschig rings are ideal for demanding industrial environments as they can withstand higher temperatures and pressures while ceramic raschig rings have superior durability when exposed to heat, chemicals attacks, as well as being highly compatible with both acidic and alkaline solutions.

Adsorbent rings typically rely on multiple adsorbents to increase efficiency. Common examples are zeolite, bentonite or granular alumina as these materials have porous structures which increase their permeability and capacity while simultaneously helping reduce concentration of harmful gases.

These rings also offer another advantage – easy cleaning! Adsorbents can be easily dissolved in solution for easy removal from the ring and recycled for further chemical reactions or water treatment applications as they’re highly effective at removing chlorine, ammonium and heavy metals from water sources.