Hot water or industrial central heating boiler running on liquid residual streams

In many companies, the liquid residual streams from production are discharged or processed as waste. That’s a shame, because these streams often contain a significant amount of usable energy.

In a hot water or industrial central heating boiler, you can use this energy to heat water for your production processes or buildings. And that creates a clear win-win: you lower your consumption of primary fuels and increase the energy efficiency of your site.

The Callens Group specialists design and build hot water or industrial central heating boilers that put liquid residual streams to work to produce hot water safely, reliably and efficiently.

Discuss the possibilities

When is a hot water or industrial central heating boiler running on liquid residual streams worthwhile?

A hot water or industrial central heating boiler running on liquid residual streams is especially worthwhile for companies whose production process yields liquid by-products with a sufficiently high energy value. Instead of discharging these residual streams or processing them as waste, they can be used as an alternative energy source.

A hot water or industrial central heating boiler uses the energy in these liquid residual streams to produce hot water. That hot water can then be used to heat production processes, installations or company buildings, reducing your consumption of primary fuels, increasing your site’s energy efficiency and capitalizing on your existing process streams.

For companies that have both usable liquid residual streams and a heat demand, this technology is an attractive step toward a more sustainable and cost-efficient energy supply.

Reasons to use liquid residual streams to produce heat:

You have liquid residual streams with an energy value.
You want to reduce the disposal costs of residual streams.
You want to consume fewer fossil fuels.
You have a continuous demand for heat up to a maximum of 200 °C.
You want to increase the energy efficiency of your site.

Output	up to 20 MW
Process temperature	up to 200°C
Operating pressure	0.5 to 30 barg
Efficiency	95%

Technical specifications of hot water or industrial central heating boilers running on liquid residual streams

Properties such as viscosity, calorific value, chemical composition, storage conditions and the available volumes largely determine how the residual stream can be used as fuel, safely and efficiently.

That is why every installation is designed to measure. Our specialists first carry out a thorough analysis of the liquid residual stream and the operational context of your company. Based on that, they select the most suitable combination of storage facilities, burner technology and combustion system. This ensures you get a reliable installation that performs optimally and extracts maximum efficiency from the available energy stream.

BENEFITS

Advantages of a hot water or industrial central heating boiler that run on liquid residual streams

Liquid residual streams don’t have to be a cost item. On the contrary, in a hot water or industrial central heating system, they can be an inexpensive alternative energy source for heating your company’s processes and buildings.

Valorization of residual streams

Liquid by-products and residual streams get a useful application within your own production environment.

Fewer fossil fuels

Using residual streams as fuel reduces the need for natural gas or other primary energy sources.

Fewer emissions

Making optimal use of available energy streams limits the need for additional fuels.

Lower energy costs

The combination of energy recovery and lower fuel consumption can lead to an attractive economic return.

Higher energy efficiency

The energy present remains available within the production process instead of being lost.

Suitable for process and building heating

The heat produced can be used for a wide range of industrial applications and heating systems.

Which liquid residual streams can be used?

Suitability will depend on the composition and energy value of the available stream. Examples include certain residues from chemical processes, waste oils, process residues or other liquid by-products that contain enough energy to serve as fuel.

Every residual stream requires a specific analysis of combustion properties, emissions and storage requirements.

The Callens Group specialists assess which streams are technically and economically worthwhile for your situation.

Maintenance of your hot water or industrial central heating boiler that run on liquid residual streams and 24/7 service

The Callens Group maintenance and service team makes sure your installation keeps performing at its best, even after commissioning. With an in-house team of more than 120 service and maintenance technicians, we schedule preventive maintenance in line with the legal and technical requirements of your installation.

On top of that, you can count on fast support whenever an unexpected breakdown occurs. Thanks to our 24/7 standby service, an extensive range of spare parts and the expertise of our service technicians, interventions can be carried out quickly and effectively.

After all, even the best maintained installation can malfunction or stop working unexpectedly. That is why the Callens Group offers a range of service packages, tailored to your preferred response time and level of support. So even in unforeseen situations, you are assured of the right support and maximum operational reliability.

More information about our service packages

PARTNERSHIP

Why partner with the Callens Group?

60 years of experience in EPCS projects

Independent integrator focused on customer needs

Flexible customer and project approach

Short decision-making lines and a personal approach

Unique service and maintenance support

Always close to customers with 13 locations

“Maximizing energy efficiency doesn’t start with choosing a technology, but with mapping out your specific situation.”

FAQ

Questions? We have the answers.

Yes. With correct engineering, fuel treatment and tuning, this technology offers the same operational reliability as other industrial heat installations.

Yes. In many cases, a second fuel is provided to ensure maximum flexibility and operational reliability.

That will depend on the composition of the residual stream used. Some liquid fuels contain more impurities or have different combustion properties than conventional fuels, which requires specific attention to burners, filters and maintenance. That is why the Callens Group analyzes the properties of the available residual streams in advance and tailors the installation accordingly. With the right engineering and a tailored maintenance program, reliable and efficient long-term operation can be guaranteed.

As an EPCS integrator, the Callens Group takes care of the entire process: from on-site analysis and engineering to installation and service. Find out more about the different steps in our workflow here.

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