High-Efficiency Gas Induction Impeller

26 November 2019

High-Efficiency Gas Induction Impeller

In the chemical process industries, several reactions involve the use of pure gas to accomplish desired chemical reactions. Thus, effective gas-liquid contact is of prime importance to achieve optimum results. Mostly, in such processes, the conversion of gas is fairly poor, and a substantial amount of gas leaves the reaction bulk unreacted.

In such cases, where it becomes desirable to recycle the unreacted gas back from the reactor vapour-space, a gas induction type impeller system is the most favourable solution.

The High-Efficiency Gas Induction Impeller (HEGI), offered by GMM Pfaudler, consists of a patented design which helps the induced gas to get well dispersed into the reaction bulk enhancing the gas-liquid mass transfer rates.

HEGI offers a threefold gas hold-up and better volumetric mass transfer coefficient (kLa) compared to traditional induction impellers. Its performance surpasses varied impeller designs available for given specific power input.

A multi impeller system along with HEGI ensures uniform suspension of catalysts such as Raney nickel or Palladium which is critical to optimum batch yield. It enhances batch performances for Gas-Liquid or Solid-Liquid-Gas mixing processes having challenges of low per pass conversion of gases.

Use of HEGI is beneficial for reactions involving pure gas such as Alkylation, Ammonolysis, Chlorination, Carboxylation, Ethoxylation, Hydrogenation, Oxidation, and such others in Agrochemical, API and Specialty Chemical Industries.

It is recommended to use a Magnetic Drive for critical chemical processes carried out in hazardous environments, where hermetic sealing is required between the external environment of agitator installation and process fluid. GMM Pfaudler offers a magnetic drive design with a fail-safe concept, which is reliable even in the event of major breakdown conditions of the agitator.

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