CO2 generating plants (CBU) are based on combustion of various fossil fuels such as diesel oil, heavy fuel oil, kerosene, natural gas, LPG or LNG. Through combustion, crubbing, absorption, stripping, adsorption and separation technology, the CO2 generating plants meet the strictest CO2 quality requirements regardless of the fuel type.
All Union generating plants are based on the latest technologies including NOxFlash and PUR-D.
Generating plants are based on absorption of CO2 from flue gas into an aqueous monoethanolamine (MEA) solution, which is subsequent heated by the combustion process to release the raw CO2 gas. To achieve the best combination of performance and long life of the equipment, a 9% MEA /water solution is used. Under this condition, the optimal balance between CO2 load in the solution and avoidance of the corrosive effects are met.
The NOxFlash technology is the result of an innovative approach to process design and has been proven in our installations since 2006. Among other advantages, the NOxFlash technology replaces the traditional use of scrubbing with potassium permanganate (KMnO4) solution, thereby reducing cost and environmental impact. Furthermore, the NOxFlash system acts as proven abatement for benzene (aromatic hydrocarbon) in the final product.
The PUR-D technology is the final purification step, consisting of a distillation column which enables separation/blow-off of noncondensable gasses, thereby reducing O2 content in the final product to max. 5 ppm (v/v) and obtaining corresponding CO2 purity of higher than 99.99% (v/v).
The electrical system for the CO2 generating plant consists of a combined MCC and control panel. From the control panel, which comprises the latest PLC technology, the plant is operated and monitored on a touch colour TFT display, ensuring easy and continuous troublefree operation.
The plant is started by an automatic start sequence and the operation is fully automatic. The entire process is easily surveyed on the operator panel, showing the status of all drives, readings of all transmitters and alarm warnings, which will also be indicated by audible alarm.
All instruments installed on the skids are wired to junction boxes or remote I/O boxes and tested in our workshop prior to shipment, thus reducing installation and commissioning time on site.
The plants are designed for high efficiency, availability and reliability through components selected for long life and 24/7 operation.
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Everything we do is based on knowledge, curiosity and a passion to do better. This work ethic has been with Union Engineering since the very beginning in 1933 and it has brought us to where we are today.
Knowledge is our foundation in every bit of our main activities being engineering, procurement, construction and maintenance of modular and individually designed CO2 technologies. With more than 900 CO2 plants delivered throughout the past 30 years, installations in 110 countries and a wide range of unique patents, we have become a trusted leader in the industry. Curiosity makes us able to provide exceptional service and advanced technical knowledge within all steps of a project, ensuring you the highest level of quality and satisfaction. We have an extensive service programme including on-site service, Remote Process Management and the right spare parts, and who is better to perform service to your CO2 plant that us, who has designed it?
Passion is our drive for designing new and innovative CO2 technologies. With a clear idea of the long-term challenges our world faces - from the need for more efficient production facilities to new levels of sustainable usage - we deliver CO2-solutions to a variety of industries around the world. This includes to customers within:
Chemicals and petrochemicals
Oil and gas, mining, cement,
Power and renewable energy
Breweries, soft drink, food and desalination industry
Designed to cope with your needs and requirements
It would be difficult to overstate the importance of innovation and quality at Union Engineering. Both things keep pushing our expertise further and make us live up to needs and requirement from our customers around the globe.
Our CO2 technologies provide you with;
Quality and Reliability - equipment from first-class suppliers and redundant design provides maximum uptime.
High Performance - cost-effective solutions e.g. NoxFlash delivers minimum lifetime operating costs.
Customised designs - meeting your specific demands and regulatory requirements
Environmental procured - equipment, materials and corrosion protection for marine and salty atmosphere.
Our CO2 plants are fully automated and prepared for remote operation. Our superior process know-how ensures that we deliver plants with the best total cost of ownership ratios in our industry.
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Serving the world new ideas and new standards
Our subsidiaries in Brazil, China, and USA and a global network of agents combined with onsite workshops makes it possible for us to give a focused approach adapted to customer needs - no matter where, no matter the industry.