Chemical Engineering Excellence

Chemical Engineering Excellence

35 Years In Business

Chemical Engineering for the 21st Century

Chemical Engineering for the 21st Century

Innovation, Simulation, Virtualisation

Chemical Engineering Modularisation

Chemical Engineering Modularisation

Custom built, Reconfigurable, Modular Process Plants

Chemical Engineering Unit Operations with a Difference

Chemical Engineering Unit Operations with a Difference

CAD, CAE, CFD, FEA Design, Modelling & Analysis

Chemical Engineering Energy & Environment Sustainability

Chemical Engineering Energy & Environment Sustainability

Energy Optimisation, the Environment a Priority

Chemical Engineering Safety & Operability to a new Level

Chemical Engineering Safety & Operability to a new Level

Unprecedented Safety & Operability methodologies.

The Slag Furnace Off-Gas Scrubbing Plant for Anglo Platinum in Rustenburg was designed to quench and clean furnace off gas before being vented to atmosphere. The Plant comprised a 3-stage quench and scrub circuit.

The first stage comprised a gas quench which quenches the gas and also removes a portion of entrained dust particles. The liquor drains into a clarifier below the quench column with the slurry generated being periodically removed.
The second stage is a high pressure variable throat wet venturi type gas scrubber. The scrubber removes micron range dust particles as well as an amount of the SO2/SO3 within the gas stream. The scrub liquor drains to a clarifier from where the slurry is pumped to a waste handling facility.
The final treatment is through a packed bed alkali gas scrubber column which removes the majority of the SO2/SO3 using alkali scrub liquor.  The gas flow is controlled by VSD managed induced draught fans, with the gases vented to atmosphere via a stack.

The scrub liquor make-up and alkali dosing rates are automatically controlled via online instrumentation and all other plant operating conditions are monitored by instrumentation feeding back to the central PLC and SCADA.

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