Please give a lot of attention and participation to the members of the mechanical engineering department.

※ The lecture will be posted for a week from the video posting date. (5/21~5/28)

  [End of posting]

▣ Title: Climate-friendly chemical technology: some new promising processes in chemical and steel industry

▣ Affiliation: Inst. for chemical technology and polymer chemistry, Karlsruhe Institute of Technology

▣ Date: 2021. 5. 21.(Fri) 13:00

▣ Venue: Online(Zoom)

▣ Host: Prof. Jongsup Hong

▣ Abstract

Reducing the emissions of green-house gases has become one of the major challenges for research and development in the mobility, transportation, energy and many industrial sectors. Aside from the energetic optimization of existing technologies, novel processes are developed. In this seminar, several promising chemical technologies for GHG emission reduction will be discussed: (1) Synthesis gas, a mixture of H2 and CO, is widely used in chemical industry for synthesis of valuable chemicals and intermediates. Using recently developed novel Ni- and Cobased catalysts, it can be produced by dry reforming, in which CO2 is used to convert natural gas [1]. (2) Hydrogen can be produced by pyrolysis of natural gas in a moving bed reactor, in which carbon is captured by chemical deposition on carbon particles. (3) The CO2-rich off-gases of steel industry can be reformed to synthesis gas at very high temperatures in the gas-phase and be re-used in the coke oven [2]. (4) Using solar and wind energy, methane as chemical energy carrier can be produced by steam electrolysis for H2 and its subsequent catalytic methanation with CO2 [3]. (5) A reversibly operated solid-oxide cell can be used to efficiently store electric power in form of synthesis gas and electrochemically oxidize when electrical power is needed again [4]. (6) Carbon-free chemical energy carriers such as Fe and KBH4 are potential materials to transport energy from solar/wind rich regions to industrial places. Chemistry, physics as well as reaction engineering behind these novel and future processes will be discussed.

[1] Giehr et al. Ind. Eng. Chem. Res. 59 (2020) 18790.

[2] Angeli et al. Angew. Chemie Intl. Ed. (2021).

[3] Schmider et al. Ind. & Eng. Chem. Res. 60 (2021) 5792.

[4] Wang et al. Energy Conversion and Management 96 (2019) 484.

Zoom: https://yonsei.zoom.us/j/81590039434?pwd=dVQ5QUN0RW5VZUpzUmVhY0txTTV6QT09