Carbon Dioxide Capture New Technology Reduces Emissions

Nanhuayuan low partial pressure capture demonstration to promote full bloom
The reporter learned yesterday from the Research Institute of Nanhua Group that as of now, the low CO2 capture technology (low flue gas, etc.) developed by the institute has been promoted in more than 20 enterprises, and it has captured more than 100 million tons of high-purity CO2. Significant social and economic benefits. On March 3, the Research Institute of Nanhua Group obtained the certificate of independent innovation product issued by the Nanjing Municipal Government.
The new technology of low partial pressure CO2 capture is a research result obtained by South China University on the basis of the original MEA (monoethanolamine) method. The MEA method has high absorption rate, strong absorption capacity, and low investment, but the degradation of amines is large, equipment corrosion is severe, and energy consumption is high. The Southern Chemical Research Institute developed a complex amine solution through exploration and research. Its CO2 capture capability is much higher than that of the MEA solution, and other indicators are also superior to the MEA solution.
Not long ago, Huang Danhua, deputy director of the SASAC, visited the Huaneng Beijing Thermal Power Plant and praised the plant's CO2 capture demonstration project as an important step in promoting China's CO2 emission reduction and developing a low-carbon economy. As the world's first industrialized application of coal-fired power plant CO2 capture demonstration project, it uses the new CO2 capture technology developed by the South China Chemical Industry Institute, such as low partial pressure (flue gas, etc.). Nowadays, this technology is being accelerated and the construction of CO2 capture projects under construction, such as Xinjiang Dahuangshan Hongji Coking Co., Ltd. and Shengli Oilfield, is beginning to take place.
Guizhou Chitianhua Group originally built a set of 3000Nm3/hMEA method to capture CO2 in flue gas. There have been problems such as serious MEA oxidative degradation, high steam consumption, equipment corrosion, and low CO2 production. CO2 capture new technology to transform, MEA degradation loss and steam consumption was significantly reduced, CO2 production standards. Yulin Natural Gas Chemical Industry Co., Ltd. uses the CO2 capture technology of the South China Chemical Industry Co., Ltd. to carry out the technical renovation of the device and the CO2 capture rate is higher than 80%. Not long ago, the company added two flue gas CO2 recovery devices, and the CO2 capture volume has reached 11,000 Nm3/h.
Mao Songbai, deputy chief engineer of Nanhua University, introduced: “The coal-fired power plant has more complex flue gas components, large emissions, low CO2 partial pressure, and high export temperatures. At present, the technology has made great progress in the application of coal-fired power plants. Huaneng Beijing Thermal Power Plant The purity of CO2 after separation and purification of the CO2 capture project is more than 99.5%, and the steam and solution consumption reach the world's advanced level.” Huaneng Shanghai Shidongkou Power Generation Co., Ltd. also adopted this technology to build a set of the world's largest coal-fired Power plant flue gas 100,000 tons/year CO2 capture project. Shengli Oilfield has used this technology to construct a demonstration unit that captures 30,000 tons/year of CO2 from coal-fired power plants and plans to build a larger-scale flue gas CO2 capture project to serve tertiary recovery.

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