Chen Yong
Chen Yong
Chen Yong, born in Nanjing, Jiangsu Province on June 13, 1957, is an expert in energy and environmental engineering technology, academician of the International Eurasian Academy of Sciences, academician of the Chinese Academy of engineering, researcher, chief scientist and doctoral supervisor of Guangzhou Institute of energy, Chinese Academy of Sciences.
Chen Yong graduated from Nanjing Institute of Chemical Technology in 1981, obtained a master's degree from Aichi University of technology in Japan in 1988, and then worked in Jiangsu Institute of chemical technology; obtained a doctor's degree from Nagoya University in 1993; was selected into the 100 person program of the Chinese Academy of Sciences in 1995; worked in Guangzhou Institute of energy of the Chinese Academy of Sciences in 1996; and served as director of Guangzhou Institute of energy of the Chinese Academy of Sciences in 1998 (tenure up to 2006) In 2001, he served as president of Guangzhou Branch of Chinese Academy of Sciences (term of office to 2012); in 2003, he served as director of South China Botanical Garden of Chinese Academy of Sciences (term of office to 2006); in 2006, he was elected as academician of International Eurasian Academy of Sciences; in 2012, he won the science and technology progress award of He Liang He Li foundation; in 2013, he was elected as academician of Chinese Academy of engineering; in 2018, he served as chairman of Guangdong science and Technology Association.
Chen Yong has long been engaged in applied basic research and technology development in interdisciplinary fields of environment and energy.
Character experience
On June 13, 1957, Chen Yong was born in Nanjing, Jiangsu Province, and was originally from Ningbo, Zhejiang Province. in September 1978, after resuming the college entrance examination, he was admitted to the Chemical Engineering Department of Nanjing Institute of Chemical Technology (established as Nanjing University of technology in 2001). In July 1981, he graduated from university. In July 1983, he entered the Chemical Engineering Department of Tsinghua University (until November 1983). In April 1985, he studied chemical engineering in the Department of Applied Chemistry, Aichi University of technology, Japan. in March 1988, he obtained a master's degree in chemical engineering from the Department of chemical engineering, Aichi University of technology, Japan, and worked in Jiangsu Institute of Chemical Technology in April (until March 1989). in April 1989, he went to the Department of chemical engineering, Nagoya University, Japan to study for a doctor's degree in thermal engineering. in March 1993, he worked in Nagoya University (until September 1996). in May 1995, he was selected into the 100 person program of the Chinese Academy of Sciences. in October 1996, he returned to China and worked in Guangzhou Institute of energy, Chinese Academy of Sciences as director of the Research Office (until March 1998). In 1997, he was selected into the "ten thousand talents project" of the Ministry of personnel of the people's Republic of China. In April 1998, he served as director of Guangzhou Institute of energy research, Chinese Academy of Sciences (until July 2006). in September 2001, he served as president of Guangzhou Branch of Chinese Academy of Sciences (until July 2012). In July 2003, he served as director of South China Botanical Garden, Chinese Academy of Sciences (until May 2006). in 2006, he was elected academician of the International Eurasian Academy of Sciences. In 2012, he won the science and technology progress award of He Liang He Li foundation. in 2013, he was elected academician of Chinese Academy of engineering, under the Ministry of energy and mining engineering (New Energy Technology). in April 2017, Chen Yong signed a contract with Zhejiang Jinguo Boiler Co., Ltd. in Jindong District government and reached an intention of cooperation. on September 29, 2018, the Ninth Congress of Guangdong Association for science and technology closed, and Chen Yong was elected chairman of Guangdong Association for science and technology.
Main achievements
Achievements in scientific research
Chen Yong is mainly engaged in the research and development of organic solid waste recycling and energy utilization technology and biomass energy utilization technology. He uses a series of technologies and integrated technologies of thermochemical conversion, physical conversion, chemical conversion and biochemical conversion to realize the energy and resource utilization of domestic waste, livestock manure and agricultural waste. On the basis of long-term research accumulation, the concepts of "urban and rural mines" and "urban and rural mine cloud" were put forward, the new model of "rural metabolic symbiosis industry" was established, the "clean production mechanism of by-product control" and the "life cycle analysis method based on energy flow, material flow, environmental flow and economic flow (4f-lca)" were established. Participate in the strategic consultation and Research on energy strategy and ecological civilization construction. the main scientific research achievements are reflected in the following three aspects:
1、 Theoretical research
solid pyrolysis is a reaction process in which substances decompose when heated in a reactor under certain conditions. It is a highly coupled and controllable process of thermophysical process, chemical reaction and reaction equipment. It is very important to study the theory of solid pyrolysis for the energy utilization of solid waste. 1. A new mechanism and model of two-stage pyrolysis and combustion of combustible solid waste are proposed. It is found that the complex combustibles can be divided into fiber and polymer. It is found that: in the process of pyrolysis and combustion, the long-chain macromolecular fibrous materials are first pyrolyzed at 873k-973k to form combustible gas and residual carbon with smaller molecular weight such as CO, H2 and CH4, which provide heat source for the pyrolysis process, and then the combustible gas, polymer pyrolysis and gas-phase combustion of fibrous materials occur above 973k, and reach 1200k in the upper part of the combustion furnace. A two-stage pyrolysis combustion model was established. Gas phase combustion (homogeneous combustion) is easier to control than solid phase combustion (heterogeneous combustion), which is beneficial to improve combustion efficiency and decompose harmful gases. The results provide a theoretical basis for the development of two-stage pyrolysis combustion technology. 2. Put forward the formation mechanism and control method of chlorine containing harmful gas. It is found that the release temperature of organic chlorine is low and the release rate is fast. Most of the organic chlorine is converted into corrosive hydrogen chloride and dioxin precursors and other chlorine containing harmful gases in the gas phase, while the inorganic chlorine is difficult to decompose and rarely exists in the fuel. Therefore, it is concluded that organic chlorine is the main source of chlorine containing harmful gases. At the same time, it is found that calcium hydroxide has good dechlorination effect, and the optimal dechlorination temperature is 873k-973k. The kinetic behavior of dechlorination reaction can be described by shrinking core model. Therefore, adding calcium compounds in the furnace and two-stage pyrolysis combustion can promote the dechlorination reaction and inhibit the formation of chlorine containing harmful gases (dioxins). 3. A new mechanism of oxygen enriched pyrolysis for gas production is proposed. It is found that the mixed solid waste can be converted into multi-purpose and high value gases such as CO, H2 and CH4 by oxygen enriched pyrolysis at different temperatures, which opens up a new way for the energy utilization of solid waste. In addition, the selection of oxygen equivalence ratio can not only control the calorific value of gas products, but also directionally control the product components. Therefore, in a certain range of equivalence ratio, increasing the oxygen concentration is conducive to improving the grade of gas products. The results provide a theoretical basis for further development of oxygen enriched pyrolysis technology.
2、 Technology innovation (including technology integration innovation)
based on the above pyrolysis theory and pollution control mechanism, the related technologies were developed. 1. The two-stage pyrolysis and combustion technology of combustible solid waste was developed. Presided over the development of solid waste two-stage pyrolysis incineration technology composed of pyrolysis chamber and gas phase combustion chamber. A conical necking chamber and an annular gas chamber are arranged between the pyrolysis chamber and the gas-phase combustion chamber. The annular gas chamber injects tangential air into the necking inner chamber through multiple rows of air injection pipes to disturb and mix with the gas produced by the pyrolysis chamber, and is ignited by a built-in cyclone burner at the necking mouth to form cyclone combustion. Compared with direct combustion, pyrolysis combustion has obvious advantages: the grate temperature (pyrolysis gasification section temperature) is low (873k-973k), which can extend the service life of the grate; the blast volume of the grate is greatly reduced, which can reduce the dust entrainment; the gas phase combustion of combustible gas above 973k-1200k, combined with dechlorination in the furnace, can inhibit the formation of corrosive gas and dioxin precursors. 2. The technology of pyrolysis of combustible solid waste and power generation with low calorific value gas has been developed. Participate in the development of pyrolysis gas production technology of combustible solid waste, and efficiently convert solid waste with different proportion and size into clean combustible gas. Through the design of the inner structure of the pyrolysis gasifier, the solid waste fed from the upper part moves down automatically, and the pyrolysis gas is pressed down to the bottom and discharged through the self weight of the material. After tar cracking, dust removal, water washing and electric coke catching, the discharged gas meets the requirements of cleaning and gas power generation equipment. As the conventional diesel engine is only suitable for diesel power generation, it must be improved, that is, a specially designed gas mixing device is installed at the air inlet to ensure full gas mixing and combustion at the same time.
3、 Engineering demonstration and engineering application
on the basis of the above theoretical research and technical development, Chen Yong led and organized a research team to formulate engineering demonstration and application scheme, carry out equipment and engineering design, and actively apply the technical achievements to engineering practice. 1. Application in the recycling of municipal solid waste. The technology of two-stage pyrolysis and combustion of municipal solid waste, gasification power generation, separation, composting, water gas residue purification, sludge biogas and other technologies were integrated and innovated, and the "comprehensive complete set of equipment for energy and resource utilization of municipal solid waste" was developed, which made the comprehensive utilization of municipal solid waste reach 85%, providing a new environment for municipal solid waste treatment, which is in line with circular economy and environmental protection Three municipal solid waste comprehensive treatment facilities with a total treatment capacity of 950 T / d have been built, and two waste fermentation biogas production projects (Cuba and Tanzania) have been built. We have prepared feasibility reports and scheme designs for more than 30 cities and regions at home and abroad, of which 7 garbage treatment plants with a total capacity of 1500 tons / day have been built and put into operation. 2. In
Chinese PinYin : Chen Yong
Chen Yong
