Use environmental functional materials technology to control air pollution

Wastewater, automobile exhaust, haze ... With the economic and social development of mankind, a series of environmental problems are also highlighted. How to control environmental pollution? Starting from the source control, to minimize emissions, promote low-carbon green lifestyle is of course very important, the use of advanced science and technology, from the environmental performance of the material itself to improve performance, develop a variety of pollution control materials and processes should also be Meaning.

Lu Yat-sen, Associate Professor of Environmental Science and Engineering at Tianjin University, thought so. "Traditional breakthroughs in technology in the field of the environment, cross-disciplinary material or biotechnology is a promising future.In fact, many environmental technology problems fundamentally rely on the progress of modern materials synthesis technology. In particular, the rapid development of modern materials science and technology provides a very ideal research direction for the development of environmental science, "said Lu Yi in an interview with a reporter from China Science News recently.

Aim at vehicle exhaust

"In the process of studying, I always think that the development of modern science and technology can not be separated from the multidisciplinary common development and coordinated development, especially the integration of environmental issues as a multidisciplinary system. During his majoring in chemical engineering, he started to understand some sources of pollution and the basic methods of pollution control. He initially considered the close connection between chemical industry and environmental protection and decided to engage in environmental science research and exploration.

"During the visit to the United States, I was deeply attracted by the development of modern materials science and technology and also saw the development direction of environmental functional materials in the future." Lu Yi-man said that with the social and economic development in contemporary society, the issue of environmental protection has become increasingly prominent. Especially in the Beijing-Tianjin-Hebei region, where there are many "haze", there is an urgent need for "multi-pronged approach" to control air pollution. He chose to focus on pollution control, environmental functional materials and environmental restoration. "Environmental pollution is closely linked with our life. The interest in scientific research for pollution control and the application of nanomaterials is my motivation for long-term adherence."

In recent years, Lu Yi people in the environmental functional materials achieved some success, but also increasingly put into practical, to contribute to improving the environment. He had previously undertaken a major research and development program in Tianjin "integrated engine exhaust gas treatment system integration and application", it achieved good social benefits.

"China's industrial pollution is more and more serious, and even the emergence of photochemical smog phenomenon.How to effectively improve the level of pollution control of motor vehicles to solve the contradiction between environmental impact and development is the urgent problem to be solved, with strong economic and social benefits "Lu Yiren introduced that they synthesized" super-large surface area composite molecular sieve "and can be used for low-temperature treatment of diesel vehicle exhaust gas. In addition to improving the purification efficiency, the prepared device can also be integrated and fully automatic controlled, thereby reducing fuel consumption. In addition, they also developed different products suitable for different climatic conditions and provided good performance to some domestic and overseas OEMs to meet the emission standards of diesel SCR catalytic converters.

Lu Yat people said that at present, the team and the Chinese Academy of Sciences completed and developed a high-performance composite zeolite catalyst, the catalyst required for low temperature and high efficiency, has reached and surpassed the performance of some similar products at home and abroad. He believes that this technology can provide an important practical basis for solving China's automobile exhaust gas treatment and related technology promotion.

Luyi people participated in the State Key Laboratory of Combustion Engine combustion another "methanol - diesel dual fuel technology" project, but also for automobile exhaust. The core technology of this project is to add the methanol and diesel control system to the original diesel engine control system so that it can operate in both pure diesel and methanol-diesel dual fuel modes, and maintain the same with pure diesel vehicles Power at the same time to achieve higher emission quality.

In May 2016, the project team conducted a vehicle retrofit test at the Pagoda Technology Company on the methanol-diesel dual fuel technology project. Continuous driving test shows that methanol and diesel dual fuel technology application effect is good.

Lu said people using this technology can be achieved using methanol replacement of diesel on average more than 30% higher than the average, saving fuel costs over 10%, help to improve combustion efficiency, reduce heat load, and can significantly reduce emissions pollution.

Do not blindly pursue hot spots

The next step, Lu Yi's research focus is still the environmental functional materials, especially the design and synthesis of nanomaterials and performance studies.

Lu Yi people put forward that as a scientific worker, we should always handle the relationship between the actual demand-oriented research and the basic research: "On the one hand, scientific research should be applied to the actual needs of the country to develop applied technology; the other Aspects, we can not ignore the basic research, there is no support for basic theoretical research, application of technology will face many practical difficulties. "

"At present, the phenomenon of hot spots in many studies is very prominent. Since the international hot spot has changed, many workers have been forced to change their research direction. This, in my opinion, is unfavorable to China's technological accumulation in the long run." Lu Yiren think.

At present, the state has also always emphasized that enterprises should take the innovation as the main body, emphasizing that researchers should actively cooperate with enterprises and carry out the transformation of achievements. In response, Lu Yi greatly agrees: "Europe and the United States to make scientific research patent applications is only the first step Long March, long-term and close cooperation with enterprises in order to make scientific research more grounded, will help promote the technology in the future, but also for Scientific research into a more reasonable and mature approach. "

"There are lots of difficulties in scientific research and many problems are unpredictable.On the other hand, there is so much charm in science that you can feel it only when you really walk in. At this time, research is not boring but full of fun and challenges. "Lu Yi people said.

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