On the 7th to 9th of October, the 9th Academic Conference of the Ministry of Chemical Engineering, Metallurgy and Materials Engineering of the Chinese Academy of Engineering was held in Xuzhou City, Jiangsu Province. Focusing on the theme of “modern industry, metallurgy, materials, and energyâ€, more than 60 academicians and 350 high-level experts have conducted in-depth discussions on the latest academic issues and developments in related fields, and in particular proposed that life cycle assessment (LCA) should be implanted as soon as possible. New energy industry.
In view of the current tight global energy supply situation and the severe situation of carbon emission reduction, the current academic conference is closely related to the hot spots. Several academician experts have included new energy R&D in key issues. Experts generally believe that the development of renewable energy and clean energy is a worldwide hot topic, but the success of any new energy development depends not only on the technical feasibility, but also on the petrochemical energy consumed in the manufacturing process or The ratio of other energy gains and losses. This is not only for commercial considerations, but more importantly for the value of the life of this new type of energy.
Professor Chen Bingzhen, a member of the Chinese Academy of Engineering and the Department of Chemical Engineering of Tsinghua University, emphasized the importance of LCA. LCA refers to the input and output of a product system's life cycle and its compilation and evaluation of the environment. For example, the use of waste edible oil to produce biodiesel needs to be collected and transported, requiring the input of gasoline and diesel; the separation of ethanol from fermentation broth with low ethanol concentration in the fuel ethanol route requires distillation and also consumes large amounts of energy. The petrochemical energy consumption and carbon dioxide emissions in these bioenergy production processes cannot be ignored. To achieve LCA, it is necessary to rely on important technical support.
“At present, the development of the bio-energy industry is facing the challenge of three mutually contradictory factors: cost, environment, and energy consumption. This problem can only be solved by constructing a multi-objective supply chain optimization model. This model comprehensively considers economic profit, greenhouse gas emissions, and Petrochemical energy is invested in three goals.In the process of solving this optimization model, the contradiction between economic indicators, environmental impact and energy consumption will be continuously coordinated and balanced, and finally provide scientific layout for the production, design and operation of biofuels. According to Professor Chen Bingzhen.
Tian Tianwei, academician of the Chinese Academy of Engineering and president of Beijing University of Chemical Technology, said: “In the context of increasingly depleted fossil fuels and increasingly heavy environmental pressures, biomass energy development is of great significance. Compared with corn and wheat, the photosynthesis efficiency of sweet sorghum is their At 23 times, it has great advantages in life cycle assessment and has become an important energy industry that countries compete for."
The experts also suggested that in order to ensure the accuracy of the life cycle assessment, a basic database conforming to China's national conditions should be established as soon as possible.
It is reported that the Academic Conference of the Ministry of Chemical Engineering, Metallurgy and Materials Engineering of the Chinese Academy of Engineering is one of the series of academic activities of the Institute and is held every two years. More than 100 papers were published in this conference, including 20 in the field of energy science and technology.
Coiling / Taping embroidery machine
2 Heads Embroidery Machine,Tapping Embroidery Machine,Mixed Coiling Embroidery Machine
HEFENG COMPUTERIZED EMBROIDERY MACHINES LIMITED , http://www.hk-embroiderymachine.com