Decarbonization of natural gas requires using absorbent material to prevent product loss due to entrainment or loss. One common means is using Raschig rings designed by Friedrich Raschig in 1914 as column packings with equal height and diameter cylinders containing ceramic particles (though other materials like metal and glass may also be used), often made […]

Raschig rings have recently become popular tools to achieve liquid decolorization. Constructed of metal tubes of equal height and diameter, these Raschig rings can be loaded with metal oxides for increased surface area that promotes decolorization. Furthermore, this new type of Raschig ring has been reused 10 consecutive cycles without losing catalytic activity; an impressive […]

Raschig rings offer an effective tertiary denitrification solution with rates ten to fifteen times greater than traditional systems for producing nitrogen and carbon dioxide at once. This process is particularly suitable for wastes containing high concentrations of calcium and ammonium as they produce nitrogen at significantly faster rates than previous systems. Friedrich Raschig invented these […]

Evaporation of waste chemicals and liquids is an integral component of wastewater treatment, and various processes – such as chemical separation, distillation and adsorption – may be employed in its pursuit. If not employed correctly however, such methods can become ineffective or even dangerous; in this article we’ll look at one popular way this process […]

A raschig ring is an indispensable component of a mass transfer column, helping promote contact between the liquid and gas phases and minimizing liquid holdup in the column. Furthermore, they’re long lasting and cost effective, making them suitable for use in commercial fractional distillation columns. PTFE raschig rings are widely known for their resistance to […]