Ohmic Heating Technology

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C-Tech Innovation supply a range of Ohmic Heating equipment

We offer laboratory scale equipment and development of the process, a pilot scale system C-Joule PLT, and a production scale system C-Joule PRD, suitable for up to 10 tonnes/hour.

Our Background

With over 20 years’ experience in Ohmic heating, C-Tech Innovation has designed, installed and commissioned bespoke Ohmic heating equipment in the UK, Europe, India, and North America. Our installations include the supply of Ohmic heating equipment for the specialty/Fine Chemical industry.

We supply continuous flow ohmic heating technology for industrial use, from laboratory scale through to production scale. Its accurate temperature control and ability to operate over a wide range of temperatures and pressures give continuous flow ohmic heating advantages over conventional techniques in fine and speciality chemicals applications.

Applications include thermal processing and chemical reactions.

Our Technology

Responding to the need to replace fossil fuel use in the process industries, and with the rising cost of all forms of energy, we have developed our ohmic heating technology for use in the chemicals and fine chemicals sectors.

Our C-Joule continuous ohmic heating technology is suitable for process fluids which have a finite electrical conductivity, including chemical reaction mixtures and most formulated chemical and consumer products.

Ohmic heating is also known as joule or resistive heating and is a volumetric heating technology. That means that the heat is generated within the body of the process fluid, unlike heat exchangers which supply heat through a hot surface. The ohmic heater consists of one or more ohmic heating pipe sections fitted with electrodes, a power supply and automatic control system.

We offer laboratory scale equipment and development of the process, a pilot scale system C-Joule PLT, and a production scale system C-Joule PRD, suitable for up to 10 tonnes/hour. The technology can operate at high temperature and pressure and with aggressive chemical compositions. It can be used in single pass or recirculating mode, and with or without temperature hold sections.

Precise Tempreture Control

Our proprietary control algorithm allows temperature control to within +/- 1 °C, subject to process conditions. The heating is delivered evenly throughout the material, avoiding hotspots. This makes the technology particularly suitable to products and reactions that are very temperature sensitive. The control algorithm maintains steady-state operation and controls start-up and shut down.

Rapid Heating

High input powers allow heating rates of up to 10 °C/s, depending on process conditions, significantly greater than conventional approaches. This offers advantages for reactions that require rapid heating in order to minimise unwanted side reactions. For somewhat lower heating rates a 2 tonne/hour pasteurisation with a temperature rise from ambient to 90°C in 15 seconds is typical.

Energy Efficiency

Over 95% of the electrical energy used is converted to useful process heat. Our company mission is to support the process industries conversion to all electric power, anticipating all renewable sources of electricity, and we see ohmic heating as an important part of that.

Small Footprint

The equipment is supplied on a small footprint skid. Electrical power supply and control panel can be located adjacent to the unit or elsewhere. Ancillary equipment including pumps, piping and vessels can be supplied if required.

Our Expertise

Our team has 40 years’ experience in ohmic heating applications. We have designed and supplied bespoke industrial ohmic heating equipment to clients in the UK, Europe, India and North America. We have provided process development services to clients developing a variety of novel applications at extremes of pressure, temperature, and material properties.

Ohmic heating in the Chemical industry

Because of its very accurate power input and temperature control and ability to operate over a wide range of temperatures and pressures continuous flow Ohmic heating technology has significant advantages in the Fine & Specialty Chemicals Industries over conventional processing equipment. It can be used in single-pass or recirculation mode with or without temperature hold sections.

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Our Ohmic Products

The C-Joule Product Range