The 3rd International Conference on New Energy and Future Energy System
August 21st - 24th, 2018, Shanghai, China
Speakers
Prof. Shijie Liu

Professor and Associate Chair
Department of Paper and Bioprocess Engineering
State University of New York
New York, USA


Keynote speech title: Ethanol Fermentation of Mixed Sugars from Woody Biomass
Abstract: Woody biomass has becoming an attractive source of renewable energy and materials. Woody biomass is heterogeneous containing carbohydrates and aromatics. While glucose is the most preferred substrate for bioconversion, polymers of multiple sugars are found in woody biomass. Hot-water extraction of woodchips is a beneficial technique to pretreat woody biomass prior to its conversion to valuable products in a biorefinery. Hot water wood extract contains a mixture of sugars: xylose, glucose, galactose, mannose, arabinose and rhamnose, and their polymers. Five carbon sugars, for example, fetch a premium value over glucose. However, the sugar mixture as it is presents a challenge in fermentation to ethanol and other materials, chemicals, and / or biofuel. There is a preference of the sugars when a sugar mixture is presented to most microorganisms. The fermentation efficiency is especially low for xylose. When genetically modified E. coli fbr5 was employed to ferment the sugar mixture to ethanol, glucose was the first sugar consumed, and then galactose, arabinose, mannose and rhamnose, xylose was the last to be consumed. While E. coli fbr 5 was genetically engineered to ferment Xylose, this outcome is disappointing. Most microorganisms prefer glucose, E coli is no exception. Xylose is the least preferred sugar On the other hand, xylose can be employed to produce xylitol, furfural, and a lot more products efficiently. The value of xylose is higher than glucose on the market, and yet it is limiting the efficiency in biomass conversion. It is possible to leave xylose unconverted and separated from the fermentation broth, while improving fermentation efficiency.


Dr. Fang Chao

Professor
Institute of Nuclear and New Energy Technology
Tsinghua University, China


Keynote speech title: Process Heat Application of HTGR: Adaptability and Potential in Energy Market
Abstract: High Temperature Gas Cooled Reactor (HTGR) is considered as a kind of GEN IV nuclear reactor and because of its meltdown-immune feature, the practical elimination of large radioactive release from nuclear power plants becomes reliable with this technology. The first demonstration project of modular HTGR in the world (HTR-PM), is under construction in Shidao Bay (in Shandong Province, China) and is planned to operate at the middle of 2019. Besides supplying electricity traditionally, HTGR could also supply high-quality process heat (7.0MPa & 750℃ helium or 14.0MPa & 570℃ steam) to industrial facilities. Here, we will analyze the adaptability of process heat supplied by HTGR in different fields, including oil refinery industry, coal chemical industry, hydrogen manufacturing industry, etc. firstly. Secondly, the benefit of using HTGR process heat, such as reducing the GHG emission and environment-friendly will be discussed and furthermore, some technical challenges will also be shown. Based on the above mentioned analysis, it is found that process heat application potential market of HTGR is wide because it may supply high quality heat with a wide temperature range. However, the development of this application strongly depends on policy factors including carbon tax and public acceptance.


More will be coming soon
The 3rd International Conference on New Energy and Future Energy System
NEFES Conference Secretary: Yin Pan     Tel: +86 18071410263     Email: Yinpan@intergridconf.org
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