DKT Energy Technology
National High-tech Enterprise; Sichuan Provincial Enterprise Technology Center; Class B qualification for chemical engineering design; Class A qualification for environmental pollution prevention and control; Pressure pipeline GC1 design qualification
current position:
CO2 Separation and Recycling in CCS-EOR Process

CO2 Separation and Recycling in CCS-EOR Process

CO2 Separation and Recycling in CCS-EOR Process


DKT has been committed to the R&D, engineering design and application of related technologies in the field of carbon emissions peaking and carbon neutrality, and has developed corresponding recycling technologies for carbon dioxide and methane (the greenhouse effect is 25 times that of carbon dioxide) in various industrial gas sources. Liquefied CO2 Enhanced Oil Recovery (CO2-EOR) technology is often used at home and abroad to enhance crude oil recovery, namely CCS-EOR, which is the most widely used and successful method of CCUS technology abroad. However, the resulting oilfield associated gas contains CO2 with great concentration fluctuations (5%-90%), and this technology requires a large number of CO2 gas sources. In view of this, DKT has developed special decarbonization adsorbents with high CO2 adsorption capacity and CO2/hydrocarbon separation coefficient, as well as supporting advanced pressure swing adsorption process.


At present, this technology has been successfully applied to the CO2 flooding and storage projects of two oilfield companies of PetroChina, realizing the large-scale industrial demonstration application of CCUS technology in China. In 2021, it was featured by CCTV-13, the news channel of China Central Television. Through efficient and low-cost carbon capture, utilization and storage, it has established an important demonstration for the project area to achieve the carbon emissions peaking and carbon neutrality as soon as possible.


Technical features and advantages:

- Advanced and proven technology, and simple process flow;

- High adsorption capacity and CO2/hydrocarbon separation coefficient of the special CO2 adsorbent;

- Fully adapt to the large fluctuation (5-90%) of CO2concentration in feed gas;

- High purity and recovery of product CO2, and high recovery of hydrocarbon;

- Highly integrated and automated plant;

- The separation and recovery cost of COand hydrocarbon is low, and the economic and ecological benefits are high;

- The whole separation process has no secondary pollution and is green and environmentally friendly.



- Separation and recycling of COin CCS-EOR process;

- COseparation in biogas, landfill gas, etc.



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Sichuan DKT Energy Technology Co., Ltd.
( A subsidiary of Hydrexia (China))

TEL:028-85256712 / 85248678


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