In December this year, the Inner Mongolia Autonomous Region CO2 Capture and Recycling Engineering Research Center was formally established. It took less than a year, and in this short period of time, the research team has delivered a high-quality answer - multiple Alcohol-ethylenediamine aqueous system capture industrial gas CO2 method.
On November 25th, a reporter from Science and Technology Daily met with Professor Zhang Jianbin, director of the Center of the Inner Mongolia Industrial University’s research center. He first presented the latest results of the team study: CO2SM (carbon dioxide storage material), a kind of white with aroma. Powder, he said: "Our core technology is called 'polyol-ethylenediamine water system'. This new CO2 capture method makes CO2 capture and low-cost resources possible."
The data shows that due to the strong volatility of amines, when the traditional alkanolamine capture method is applied to the industry, 14900 cubic meters of exhaust gas containing CO2 are processed every hour, and the use cost of amines is about 4 million yuan. This cost is obviously difficult to be large. Most companies accept it. In the CO2 system for the capture of industrial gas CO2 with polyol-ethylenediamine water system, the scientists at the research center realized the key technical steps for the fixation of ethylenediamine by polyols.
“We have discovered the effect of ethylene glycols on the immobilization of ethylene diamine by intermolecular hydrogen bonding and ionization between alcohols and amines. This method can achieve a recovery of flue gas CO2 above 99% and amine regeneration. The rate is higher than 90%, and the amine loss rate is reduced by 80%. After this technology is transformed, the capture CO2 capture method will be expected to be reduced to 20%.†Zhang Jianbin said.
At present, the Inner Mongolia CO2 Capture and Recycling Engineering Research Center is the second provincial CO2 capture platform in China and the first provincial-level carbon dioxide resource utilization platform. Li Xinxue, a professor of chemical engineering and bioengineering at the Beijing University of Science and Technology, believes that compared with another platform for carbon dioxide capture and storage, the Inner Mongolia Research Center has achieved a seamless connection between carbon dioxide capture and recycling and can achieve carbon dioxide Absorb on-site and realize resource utilization on the spot. This new scientific research achievement is in line with the more developed regional conditions of the coal industry in the Inner Mongolia Autonomous Region, and can be quickly promoted to the whole country.
How can a brand-new capture method achieve new resource utilization? Professor Zhang Jianbin and his team used CO2SM to give the answer. “This is a new substance formed by the 'polyol-ethylenediamine water system' during the CO2 capture process. CO2 is contained in it. This is a salt, and we named it as 'carbon dioxide storage material'. This one." Professor Zhang said with the bottle of white powder.
Hong Hailong, deputy director of the research center, told the reporter of Science and Technology Daily: “As a new source of CO2 resources, the application of carbon dioxide storage materials has broad application prospects. For example, this kind of material dehydration is polyurethane, which can be used in the field of fine chemicals; after adding water, there is no Poisonous plants activate fertilizers and the plant growth rate is 20% higher than that of traditional fertilizers. With the stirring of industrial waste carbide slag, nano-calcium carbonate can be easily synthesized..."
Through research on carbon dioxide reservoir materials, researchers at the research center have discovered and demonstrated the wide availability of this material. They have successively developed coal gangue adsorbent preparation, fine chemical process research and development, supercritical extraction, and drug discovery. Refining, activating plant growth and food preservation, regulating calcium carbide slag preparation of nano-calcium carbonate and other important process demonstration and technology research and development projects closely related to CO2 capture and recycling, approved six national invention patents, and approved a national-level research project 9 items.
As the results of research papers were published in academic journals such as ACS Applied Materials & Interfaces, the research results of the Inner Mongolia CO2 Capture and Recycling Engineering Research Center began to enter the pilot stage.
Professor Wei Xionghui, a professor of chemistry and molecular engineering and professor at Peking University, spoke highly of this new scientific research achievement in Inner Mongolia: “It is of great significance to use CO2 as an alternative carbon and natural gas as a carbon source in the future. It is a future scientific exploration of related fields. The main goal, the establishment of the "polyol-ethylenediamine water system for the capture of industrial gas CO2 system" and the use of carbon dioxide storage materials, has provided a new direction for this goal." (Reporter Zhang Jingyang)
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