Linde is an industrial gas and engineering company with a global presence. They offer a wide range of industrial gases, engineering services, and equipment across various sectors like chemicals, energy, food & beverage, electronics, and healthcare. In recent years, Linde has emerged in the CCUS market with several technologies (OASE® blue and HISORP® CC).
They claim competitive advantage based on the following:
95% with CO2 inlet 8-95%
>350kt+ CO2/year
NA
Larger
High energy consumption,
Electricity only
In the first step of the Pressure Swing Adsorption, flue gas is compressed and treated through a separator (1.), where liquids are separated from the flue gas. This pre-treatment is key for operational optimization, allowing for even higher performance.
During adsorption, the feed gas is routed from the top to the bottom of the respective adsorber in adsorption and the heavy hydrocarbons and water are adsorbed to produce an on-spec product. After a certain time, the adsorbent material is fully loaded and another adsorber switches HISORP® to adsorption mode. The fully loaded adsorber switches to the regeneration phase, which consists of the heating and cooling steps.
In the heating step, the regeneration gas is routed through the vessel from bottom to top at an elevated temperature. The previously
adsorbed impurities desorb and accumulate in the hot regeneration gas. The gas is subsequently cooled down and sent to a condensate
separator to separate the heavy hydrocarbons and water from the gaseous components.
Once the heating step has been completed, the adsorber vessel is cooled to adsorption temperature by using regeneration gas. This regeneration gas used for cooling is a split stream from the feed gas and it is routed through the vessel from top to bottom.
The gas leaving the adsorber vessel in the cooling step becomes the regeneration gas for the vessel in the heating step. In this way, heat losses are minimized, and heat is recovered efficiently.
After the separation of the condensable components, the regeneration gas is recycled from the condensate separator to the feed gas to maximize the recovery of valuable components. No compressor or blower is required for this process step. Instead, a throttle valve in the feed line compensates for the pressure loss of the regeneration gas to facilitate recycling. The entire process is designed for maximum efficiency.
The captured CO₂ can be further purified and liquefied for use in chemical or other industry processes. Alternatively, it can be purified to a food-grade level and used in the production of food and beverages.
Linde also specializes in CO₂ purification, liquefaction, storage and distribution technologies. The company offers a range of prefabricated, standardized solutions to accelerate deployment and maximize cost efficiencies.
While OASE® blue is a well-tested and deployed technology, HISORP® CC represents a newly developed solution in the Linde’s product offering with no integrations yet.