深圳大学西丽校区

学术讲座

学术讲座(十三):Process and Material Innovation

2019年03月22日

Process and Material Innovation for Gas Industry

主讲人: 李刚教授

时间: 328日上午10:30

地点深圳大学西丽校区B1-420会议室

报告人简介:

Dr Gang (Kevin) Li received both his Bachelor and Master degree in Chemical Engineering from Tianjin University (China), and later PhD (2010) at Monash University. After a year of teaching and research fellowship at Monash, Dr Li moved to The University of Melbourne as a CO2CRC Research Fellow for 10 months, resuming his research on the development of clean energy through interplay of materials engineering and chemical engineering. In 2012, Dr Li took up a Research Assistant Professor position at the University of Western Australia, where he started to lead a research team focusing on novel technologies for natural gas separation and recovery of low grade methane, and in the meanwhile serving as a lecturer teaching undergraduates core chemical engineering units.

Dr Li was an awardee of the ARC DECRA fellowship ($376,970 for year 2014 – 2016), and he is also a co- founder and one of the three theme leaders of the $8.8 million ARC Industrial Transformation Training Centre (Australian Centre for LNG Futures). Recently, Dr Li was awarded $1M start-up grant via the Global Innovation Linkage program by Australian government to commercialize his award winning methane capture technology. Dr Li discovered the “molecular trapdoor” effect and established the LJM (Li-Jensen-May) isotherm model. He has 12 invention patents including 3 PCT patent and research publications in most of the top chemistry and chemical engineering journals (e.g. Nature Comm, JACS, AIChE J, Chem Eng Sci ) with a total citation over 1500 and an H-index of 21 (Google Scholar).

 

报告摘要:

Maintaining the competitive advantage of Australia’s hundred-billion dollar resource industry requires ongoing development of expertise and technologies in exploration, development, processing and environmental management. Here we share examples of how we helped to address several challenges in the field of natural gas and mineral processing, and how these efforts led to the advance of knowledge.

We firstly show our recent invention of a new class of methane adsorbents named ionic liquidic zeolites (ILZs) for methane capture/upgrade in gas industry. Methane is the second largest greenhouse gas but unlike CO2, it is also an important clean energy source. Methane capture is practically a problem of separating CH4 from N2, which remained very challenging because these two molecules are similar in size, both non-polar and inert. Through guidance by molecular simulations, ILZs with organic cations [N1111]+, were designed and prepared showing an unprecedented CH4/N2 selectivity of 6-9. The superior performance of ILZs was demonstrated in a pilot scale dual-reflux pressure swing adsorption apparatus, successfully enriching a 2.6%vol dilute methane into a 60%vol rich product while producing a methane free (< 100 ppm) vent.

Another major effort goes to the study of the mechanism and application of stimuli-responsive materials in which the pore accessibility can be regulated by heat, light, chemicals, and potentially electricity. A physical model is presented to explain the atomic-level chemistry and structure of the thermally regulated micropores, which is crucial to systematic engineering of new functional materials such as tuneable molecular sieves, gated membranes and controlled-release nanocontainers. The model was validated experimentally with H2, N2, Ar, and CH4  on three classes of microporous materials: trapdoor zeolites, supramolecular host calixarenes, and metal-organic frameworks. We demonstrate how temperature can be exploited to achieve appreciable hydrogen and methane storage in such materials without sustained pressure. These findings also open new avenues for gas sensing and isotope separation.

欢迎有兴趣的师生参加!