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Heat Transfer

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A new approach to maintaining tubular heat exchangers

At the 2nd Annual ChemInnovations Conference and Expo (Houston; September 13–15), Hemi-O Technologies LLC (Corpus Christi, Tex.; [email protected]) introduced its patent-pending technology that enables external access to individual tubes in a heat exchanger while the exchanger is in service and…

Compact Reactors Boost Productivity

Velocys Inc. (Plain City, Ohio; www.velocys.com), a part of the Oxford Catalyst Group (Abingdon, U.K.; www.oxfordcatalysts.com), has been awarded the Kirkpatrick Award for Chemical Engineering Achievement from Chemical Engineering. The company’s winning technology features microchannel reactors for producing synthetic fuels.…

Eliminate downtime with a skid-mounted pair of PHEs

The GEASkid version of the NT Series is a plate heat exchanger (PHE) module with permanent standby function, comprising two completely independent PHEs designed to eliminate machine downtimes caused by maintenance. The GEASkid was developed to meet the safety requirements…

For cleaning applications, simply mix steam and water

The CSF Steam Water Mixer reliably and safely delivers hot water at the required temperature for cleaning or wash-down applications, especially those in the food and beverage industries. Made of stainless steel, the mixer can deliver water up to a…

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Heat transfer system cleaning

A well designed and operated heat-transfer-fluid system is a key feature of a safe, reliable and cost-effective heating design. However, problems can arise if the heat-transfer fluid becomes heavily degraded or the system is allowed to accumulate solids and other…

Homogeneous drying achieved with this oven

The VD and VDL drying ovens can dry samples completely without residues, scaling or oxidation, thanks to an innovative control concept. The temperature is controlled over the entire range, without overshooting. The controller also includes a temperature selection limiter, multi-program…

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Heat Exchangers for Hot Acids: Material Selection

To make the modern materials we use every day, such as plastics, metals, electronics, pharmaceuticals, fuels and so on, strong acids are used to convert the earth’s raw materials into modern materials. In fact, so many tons of acid are…

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Finland becomes the home of a large biogasification plant

Metso (Helsinki, Finland; www.metso.com) is supplying a 140-MWth biogasification plant to Vaskiluodon Voima Oy in Vaasa, Finland. When it starts up in December 2012, the €40-million gasification plant, which will be located next to the existing 565-MW coal-fired power plant,…

A crucible furnace for very high temperatures

This high-frequency crucible furnace with vacuum is suitable for induction melting of metals and metal alloys, for heat treatment and for sintering of oxide ceramics and metal powders. The unit can be operated with or without vacuum, and is automated…

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Compact, High-efficiency Heat Exchangers: Understanding Fouling

The topic of fouling in heat exchangers has been of increasing interest in recent years, since it is so closely linked to the cost of building and running a chemical plant. It has been reported that fouling costs are about…