The membrane method to capture flue gas carbon dioxide technology passed the acceptance

On December 29, 2022, the "Industrial Experiment of Membrane Separation Capture of Flue Gas Carbon Dioxide (CO₂) Technology" completed by Sinopec Nanjing Research Institute of Chemical Industry Co.
, Ltd.
and Tianjin University passed the acceptance of scientific research projects organized by the Ministry of Science and Technology of China
.
The acceptance expert group unanimously agreed that the project reached the international advanced level
.

This project is a supporting project
in the "13th Five-Year Plan" national key research and development plan project "membrane carbon dioxide capture technology and industrial demonstration".
The project developed a new membrane material, and designed and built a 30 standard cubic meter/hour membrane separation method flue gas capture carbon dioxide pilot plant
.
Using the results of pilot research and relying on independent development technology, they designed and built a 50,000 standard cubic meter/day membrane separation flue gas carbon dioxide capture demonstration device, and carried out the continuous operation inspection of the demonstration device
.
After the evaluation of third-party testing institutions and industry experts, the carbon dioxide concentration in the product gas of the demonstration device reached more than 96%, and the carbon dioxide capture rate reached 81%.

Coal-fired power plant flue gas is the main source of carbon dioxide emissions, which has problems such as
complex composition, low carbon dioxide concentration, and difficulty in capturing at atmospheric pressure.
Organic amine method is a mature technology for carbon capture application of flue gas in power plants, but it has the disadvantages of high energy consumption during operation, serious equipment corrosion, and fast degradation of amine liquid, which restricts its large-scale application
.
As a non-phase change separation method, membrane separation method has the characteristics of simple process, small equipment investment, low energy consumption, flexible operation and small footprint, and has broad
application prospects in flue gas to capture carbon dioxide.