Decompression modules

Become Fossil Free with Biogas from Mobile Gas Storages and a Decompression Unit

Become Fossil-Free with Biogas, Regardless of Gas Grid Access

The demand for sustainable solutions is growing within industries, leading many to transition from, for example, oil heating to fossil-free biogas. Biogas is a renewable energy source produced through the anaerobic digestion of organic material and offers numerous benefits. It contributes to reduced climate-impacting emissions, serves as a local energy source, and supports the circular economy by recycling waste and manure. We highly recommend reading the excellent brochure from BioDiv Öst “Biogas en bra affär för din industri”

Industries lacking access to the main gas grid or a local biogas network can still make the transition to biogas. This is made possible using mobile gas containers filled with biogas. As a filled gas container can have a pressure of up to 250 bar, and industrial burners usually require a pressure of less than 4 bar, we have developed a decompression module solution.

These decompression units can be customized in size and capacity to meet the expected gas flow. During the decompression process, the endothermic energy in the gas decreases, making it very cold. Our decompression unit ensures that the gas is decompressed incrementally with controlled heating between each pressure regulation stage.

We offer container solutions ranging from 10 to 40 feet that house a separate electrical and boiler room, as well as a gas regulation space. Depending on the need, we can choose between an electric or biogas boiler for heating. This means that industries can access a tailored and sustainable solution for their energy needs, regardless of access to a biogas network.

Biogas dekomprimering biomethane decompression unit fossilfree energy
A small 10 feet container decompression unit.
Biogas mobilt gasflak mobilt gaslager mobile pipeline
A mobile gas storage can be used to move biogas from the biogas plant to the end-user.

Adapt biomethane supply to meet your specific needs

To facilitate a transition to fossil-free biogas within your industry, particularly when access to a local biogas network is unavailable, more is required than just a decompression unit. A dependable biogas supply is also essential. At Processkontroll Green Technology, we make this possible with our mobile biogas storage units. These units can be filled with up to 4 tons of biogas directly at the biogas producer’s site, and then securely transported to you, the end user. Learn more about our mobile gas storage solutions here.

For those requiring substantial amounts of biogas, considering the energy-dense liquefied biogas, also known as LBG or Bio-LNG, might be more advantageous. This gas is stored in large cryogenic tanks. At Processkontroll Green Technology, we offer vaporization facilities that accurately regulate the gas flow according to your specific needs, ensuring a stable and efficient energy supply.

Explore examples of how we can assist you in becoming completely fossil-free with liquid biogas here.

Examples of Previously Delivered Decompression Units

Below are several examples of daughter stations that Processkontroll Green Technology has delivered over the years. These stations reflect our expertise and commitment to providing tailor-made and efficient solutions for our clients. To view a more comprehensive list of our facilities, please visit our reference page.

Should you require additional information on any of these projects, or if you are interested in learning more about how we can provide a solution suited to your specific needs, please do not hesitate to contact us.

Decompression Module for Biokraft Södertörn

In Södertörn, Processkontroll Green Technology has successfully completed the installation and commissioning of a state-of-the-art decompression unit for Biokraft.

This innovative solution, housed in a 20-foot container, is part of our range of decompression modules and boasts a capacity of a full 1000 Nm3/h. By regulating compressed biogas from mobile gas storage, the unit plays a central role in Biokraft’s production – a company formerly known as Scandinavian Biogas – of liquid biogas, LBG (Bio-LNG).

The process contributes to completing the gas flow from Biokraft’s anaerobic digestion plant to the liquefaction facility, facilitating a smooth and efficient production of LBG.

Delivering a ‘Usain Bolt Decompression Plant’ That’s On Your Marks Year-Round

Over the years, we have delivered numerous decompression plants aimed at continuously feeding, for instance, an industrial furnace with eco-friendly, fossil-free biogas to replace energy sources like oil. What happens in this scenario is that the customer receives full biogas racks at a pressure of 200-250 bar, which needs to be regulated down to the desired pressure, often just a few bars.

During the compression of gas, the distance between the gas molecules decreases, and the increased kinetic energy causes the gas to become warm, hence the need to cool the gas between each compression stage. During the pressure reduction, the process is the reverse, and we instead need to heat the gas between each pressure reduction regulator. This is what our decompression plants resolve, regulating the pressure of the gas in a controlled manner and reheating it between each stage. Of course, this task is facilitated by the usual desire for a relatively constant and continuous flow.

When we commissioned our new decompression plant for Gasum in Nynäshamn before the summer, the conditions were completely different; instead of continuous supply, the biogas would now serve as backup operation during potential power outages, reducing the risk of costly restarts. We therefore had to design the plant to deliver gas at 37 bars pressure and a flow of a whole 4000 kg/h within a few seconds. The flow itself is enormous, equivalent to two mobile gas racks per hour, and the challenge of being able to start immediately year-round posed significant challenges for both our automation technicians and the gas boiler that provides controlled heating of the gas after each pressure reduction step.

Thanks to good planning and cooperation with the customer, we finished on time, and now our “Usain Bolt” is in the starting blocks, waiting for the starting gun that might come tomorrow, maybe in a year. And all the while, without getting cold or cramped.

Dekomprimeringsanläggning Nynäshamn
In the picture, you can see the moment when we commissioned the decompression plant on site in Nynäshamn. With a flow rate of 4000 kg/h, the test flare was substantial. To the right, you can see the inside of the container, which houses the regulators and heat exchangers. To the left is the gas boiler.
Biogas dekomprimering biomethane decompression unit fossilfree energy
We have developed biogas decompression modules that enable a smooth transition to fossil-free biogas, even for those without access to the gas network.

Biogas Decompression Cooks Meatballs Fossil-Free

An increasing number of people are looking to replace fossil fuels such as oil with eco-friendly biogas. We have developed decompression modules that facilitate a smooth transition to biogas, even for those without access to a gas network.

Our mobile gas containers are filled with biogas, and the decompression unit lowers the pressure for use in various applications. We have recently commissioned a smaller decompression unit that will be used to cook meatballs with fossil-free biogas!

Check out our compact 10-foot container, which houses the control system, heating boiler, and pressure regulation here.

Latest news

Fler nyheter

An Eventful 2023

December 2023
Processkontroll Green Technology concludes a successful year marked by development and innovation. Despite challenges like the elimination of tax exemption for biomethane, we have delivered many fueling stations and launched a new compressor, achieved milestones with mobile gas storages, and supported the industry in transitioning to fossil-free alternatives.

Bo Axelsson New CEO

January 2024
We are delighted to welcome Bo Axelsson as our new CEO starting January 1st. Bo brings extensive experience in leading organizations, most recently as CEO of Swede Ship.

New Decompression Module for Biokraft Södertörn

November 2023
Processkontroll Green Technology has recently completed the installation and commissioning of a decompression unit for Biokraft, located in Södertörn.

New CBG Filling Station Delivered to Lyse, Norway

March 2023
At Processkontroll Green Technology, we are proud to have delivered a new CBG filling station to the Norwegian company Lyse in the Stavanger region.

Gasum refueling station for liquid and compressed biomethane in Luleå

March 2023
Yesterday, Gasum’s new refueling station for liquefied and compressed biogas was inaugurated in Luleå municipality. We are grateful for the continued trust in allowing us to deliver this LCBG station to Gasum, following the sibling station in Ålesund earlier this winter.

Completed 5-year warranty inspection at Fredriksdal bus depot

January 2023
We continually conclude projects with approved warranty inspections, but we wanted to highlight this one in particular: the Fredriksdal bus depot in Hammarby Sjöstad turned out to be an exceptionally fantastic project with extreme demands for rapid refueling of biogas buses.