Aker Solutions :: Chemetics Equipment

Chemetics proprietary equipment includes:

Anodically protected shell and tube acid coolers
Stainless steel converters with internal heat exchangers
Radial pitch gas-gas heat exchangers
Pre-heater exchangers
Drying and absorption towers and tanks

Chemetics also introduced to the industry the strong acid corrosion resistant steel SARAMET®. This high silicon austenitic stainless steel has found application in all areas of strong acid handling and storage, including:

Acid distributors – pipe type and trough type
Absorption towers and tanks
Acid piping
Acid filters

Anodically Protected Shell and Tube Acid Coolers

Chemetics has maintained its technology and market lead for over 30 years in providing this globally accepted high quality product for cooling strong sulphuric acid. Based on shell side acid flow – tube side water flow and precisely controlled anodic protection of the tube material with the proprietary ANOTROL 2000 control system.

Many of Chemetics acid coolers have remained in continuous service for over 25 years. All units – which now number in excess of 1100 – are manufactured to extremely high standards of quality control in Chemetics fabrication facility in Toronto ON. The same principle of anodic protection is also applied to Chemetics strong sulphuric acid storage tanks.

Stainless Steel Converters

Chemetics developed a totally new design concept for the SO2 to SO3 catalytic converter, which is the heart of the sulphuric acid plant. Manufactured from high strength, corrosion resistant austenitic stainless steel, Chemetics patented converter design provides maintenance free service for this major plant equipment item.

Advantages of the design include unimpeded access for catalyst screening, an all welded construction, which ensures no gas bypassing between beds, excellent gas distribution, rapid heat up time and the facility for installing heat exchangers in the central core.

Gas Exchangers

Chemetics supplies its patented high efficiency gas exchangers for all contact plant duties. The designs feature a radial pitch tube layout and disc and donut baffle arrangement, the combination of which ensures high thermal heat transfer coefficients and low pressure drop.

All units have welded tube to tubesheet joints and 360º freedom of nozzle orientation to facilitate optimum plant layout. Depending on the duty, the units can be supplied in carbon or stainless steel or a combination of both materials.

Chemetics pre-heat exchanger, which is mainly incorporated into metallurgical acid plants as a start up heater or as a heat source to compensate for low SO2 conditions, has many design features which ensure trouble free operation for this particularly arduous duty.

Drying and Absorption Towers and Tanks

Chemetics brick lined tower design has been developed over many years resulting in the current design which provides clients with a high efficiency, low maintenance and low pressure drop drying and absorption system. Design emphasis has been on high mechanical integrity lining construction, excellent liquid and gas distribution and maintenance free internals.