Industrial Gases

INDUSTRIAL GASES

Home
Industries
Industrial Gases

INDUSTRIAL GASES - SUPERIOR PERFORMANCE, NO MATTER SIZE OR NEED

At Pentair Union Engineering all customers and all needs are important. We supply some of the world’s largest capacity CO₂ plants that deliver high quality CO₂ to a large merchant consumer base, and we supply smaller cost competitive CO₂ plants that are placed strategically near major consumers.

We always provide the most superior technology to recover CO₂ whether the raw gas originates from rich, medium, or low concentration CO₂ sources.

Regardless of the source our plants are designed to produce gaseous or liquid CO₂ meeting the most stringent quality requirements within the industrial gases industry.

Choose our products, components or services for your specific needs or contact us for further information.

HIGH PURITY CO2 SOURCES

Low power consumption and high recovery rate
A high purity raw gas source has a CO₂ concentration that ranges from 80% up to 99.9%. High-concentration sources are the most widely used sources for CO₂ production and typically originate from:

Ethanol production
Ammonia production
Hydrogen production
Ethylene production
Gasification
Natural gas sweetening

The main advantage of a high concentration source is the lower amount of impurities that have to be removed in the purification process often resulting in very low power consumption and operating cost in general.

The often critical impurities found in some of the above-mentioned sources can be efficiently removed using our proprietary purification technologies. All of our technologies use a minimum of resources guaranteeing you a sustainable CO₂ plant.

MEDIUM PURITY CO2 SOURCES: Pure improvement of solutions
Medium CO₂ purity raw gas is mainly found in Hydrogen Manufacturing Units (HMU).

A medium purity source, i.e. the tail gas from the PSA, contains CO₂ in the range of 30-77%. Our patented FlashCO₂ technology turns this gas to high purity liquid CO₂ and further improves the overall HMU capacity by up to 15%.

FlashCO₂ has proved extremely energy efficient and compared to other technologies, like MDEA extraction, it eliminates steam consumption.

Moreover, retrofit of a FlashCO₂ process plant in an existing HMU facility is uncomplicated. Only tie-in point will be at the tail gas pipe and thereby you avoid any operation and process impact on the existing HMU.

This ”end-of-the-pipe-solution” will even allow locating the CO₂ process plant off the refinery site.

LOW PURITY CO2 SOURCES

From low purity to highest purity
Low CO₂ purity raw gas sources, with a CO₂ concentration of less than 35%, requires an upgrading unit to make it feasible for further purification and liquefaction.

By utilizing our unique amine-based absorption and stripping technologies we can turn a low purity raw gas into a 99%+ high-quality CO₂ gas, ready for further purification and liquefaction to food and beverage grade quality.

At Pentair Union Engineering we offer extraction of CO₂ from:

Fossil fuel-based flue gases
The sweetening of natural gas streams
Syngas streams
Other low CO₂-containing sources

For gases with low partial CO₂ pressure, we utilize one of our mono ethanol amine-based technologies. For flue gases, we typically use the advanced amine technology that tolerates up to 15% oxygen concentration in the raw gas. With an amine concentration at 4 times higher than traditional designs, this ensures the lowest possible operating cost.

For gases with a high partial CO₂ pressure, such as natural gas streams, we apply adsorption technologies typically based on MDEA.

All plants are customized to meet specific needs.

We have more than 350 references on different sources such as:

Lime kiln
Gas turbines
Waste to energy
Power plants

BIOGAS: Pentair offers a comprehensive solution for upgrading biogas into high-value biomethane. Our innovative two-in-one system not only transforms biogas into Renewable Natural Gas (RNG) but also enables the recovery of CO₂ from a secondary stream - turning a byproduct into a valuable resource - biogenic CO₂.

RELATED CASE STUDIES

Coca-Cola CO₂ Self-Sufficient, using Pentair's Self-Generating plant in Puerto Rico

In Puerto Rico, Caribbean, Union Engineering won a project from the local Coca-Cola bottler where the assignment was to ensure the bottler's independence from external carbon dioxide suppliers and secure a constant supply of top quality carbon dioxide. Further, the Coca-Cola bottler was facing increased difficulties in purchasing potassium permanganate from the market, a chemical traditionally used as an oxidation agent in the CO₂ purification process.

View Case Study

How Tanzania Breweries Ltd. achieved CO2 self-sufficiency

Tanzanie Breweries becomes CO₂ Self-Sufficient

At the Tanzania Brewery in Dar es Salaam, a member of the SABMiller Group, they produce both beer and soft drinks and have their own CO₂ recovery plant for purifying the CO₂ extracted from fermentation. However, due to the mix of several different products, an imbalance has occurred between the level of CO₂ from the fermentation recovery and the actual need for CO₂.

View Case Study

Tata Chemicals Europe invests in the United Kingdom's first CCU project

In an innovative application of CCU Technology, the TCE plant will capture carbon dioxide from the flue gasses of TCE’s gas-fired 400 MW steam combined heat and power (CHP) plant, which supplies steam and electricity to the company’s Northwich, England, operations and other industrial businesses in the area.

View Case Study

Thai Sugar Mill Group reduces Greenhouse Gas Emissions and creates sustainable CO₂ source for industrial use

As part of their ethanol production process, TSM Group sought a way to capture and repurpose the CO₂ emissions generated from molasses fermentation—a byproduct of sugar manufacturing. Their goal was to reduce greenhouse gas emissions and create a sustainable CO₂ source for industrial use.

View Case Study

NEWS

2026 Global Events Calendar

Where to Meet Pentair in 2026: Our Global Events Calendar

Our Solutions

Industrial Gases