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第378回化学システム工学専攻公開セミナー Bioenergy carbon capture and storage (BECCS): Absorption CO2 using aqueous potassium carbonate as absorption solvent

2022年11月30日(水) 15:00-16:00
Meeting ID: 857 2662 8397
Passcode: 878529
講演題目Bioenergy carbon capture and storage (BECCS): Absorption CO2 using aqueous potassium carbonate as absorption solvent
講演者Dr. Matthäus Bäbler
Associate Professor, Dept. Chemical Engineering, KTH Royal Institute of Technology.
概要Many European countries set the ambitious goal to become carbon neutral by mid-century. To achieve this goal a multitude of technological and societal advances are needed, including technologies that produce net-negative carbon emissions. The most prominent net-negative carbon emission technology is bio-energy carbon capture and storage (BECCS). BECCS involves the capture and storage of CO2 that is released when converting biomass for heat and power production. Since biomass is a renewable energy source, BECCS leads to negative carbon emission on a ~10-year time-scale (the time it takes for the biomass to grow). In Sweden, conventional power plants use biomass as feedstock which makes them prime candidates for the implementation of BECCS. Along this line, the main power plant operator in the city of Stockholm started a pioneering project to equip one of their heat-and-power plants with a carbon capture unit to collect up to 800 kt CO2/year. The captured CO2 will be liquefied and shipped to Norway for geological storage. The plan is to commission the full-scale capture unit by the end of 2025. Carbon capture from flue gas is preferentially done by absorption using a liquid solvent. Among the different solvents, aqueous potassium carbonate (K2CO3) was chosen for the capture process. K2CO3 has low regeneration energy, shows little degradation and is non-toxics. However, K2CO3 exhibits a slow absorption rate of CO2 which calls for the addition of rate promoters and/or catalysts that enhance the uptake of CO2.
In this seminar, I will report on our research on aqueous potassium carbonate as solvent for absorption of biogenic CO2. I will address various technical aspects such as lab scale experiments to evaluate and test different rate promoters; pilot plant tests done in collaboration with an industrial partner to explore real-world performance; and the challenges of monitoring and controlling an absorption plant.
世話人杉山 弘和(内線:27227)

第377回化学システム工学専攻公開セミナー Digitalizing Bioprocess development – Introduction to Genedata Bioprocess

2022年11月17日(木) 15:00-16:00
工学部3号館31号講義室 (11月14日更新)
Meeting ID: 810 6561 6395
Passcode: 104467
講演題目Digitalizing Bioprocess development – Introduction to Genedata Bioprocess
講演者Mizue Hisano, PhD
(Scientific Business Consultant / Genedata AG)
概要While introducing the software "Genedata Bioprocess", talking about the underlying method and data environment, the challenges, and prospects of data utilization in the biopharmaceutical industry. Additionally talking about IP protection from the standpoint of IT Business. Genedata Bioprocess : The increasing number of biopharmaceutical development projects, combined with the application of more and more high-throughput technologies in cell line and bioprocess development, has led to a significant increase in the amount of data to be captured, processed, and analyzed. Genedata Bioprocess® is an E2E platform co-developed in close collaboration with leading biopharmaceutical companies that supports the entire bioprocess development workflow. The platform can be applied to antibodies (IgGs, novel bi- and multi-specific formats), as well as to other therapeutic proteins and cell therapeutics (e.g., engineered FVIII variants, fusion proteins, CAR-T, mRNA vaccine). It directly integrates with instruments, such as pipetting robots, bioreactors, control systems, and bioanalyzers. The platform’s query and reporting infrastructure enables integrated, informed decision-making throughout the process development workflow and comprehensive learning across different development campaigns and molecules.
世話人杉山 弘和(内線:27227)

第376回化学システム工学専攻公開セミナー 噴霧液滴を利用したMetal-organic frameworksの連続合成および複合化・薄膜作製

2022年12月5日(月) 15:00-16:30
ミーティングID: 852 6301 8436
パスコード: 853426
講演題目噴霧液滴を利用したMetal-organic frameworksの連続合成および複合化・薄膜作製
講演者久保 優
広島大学 大学院先進理工系科学研究科 化学工学プログラム 助教
概要金属有機構造体(Metal-organic framework; MOF)は金属イオンと有機配位子から構成される多孔質材料であり、優れた細孔特性を有しているため、ガス貯蔵・分離、触媒、分子認識センサーなどへの応用が期待されている。MOFの社会実装のためには、低コストで簡便な大量生産手法が必要である。本講演では、講演者が新規合成法として開発した噴霧合成法によるMOFの連続合成と、噴霧液滴中でのMOFの急速な結晶生成を利用したナノ粒子との複合体形成および薄膜作製について、これからの研究展望も含めて紹介する。

第375回化学システム工学専攻公開セミナー Fueling the Future

2022年11月7日(月) 14:00-15:30
講演題目Fueling the Future
講演者Prof. Kuo-Wei Huang
KAUST Catalysis Center and Division of Physical Sciences and Engineering
King Abdullah University of Science and Technology
概要In 2021, the estimated world population of 7.0 billion people consumed ~14 Gtoe of energy (at an average rate of 19.0 TW). Globally, burning of carbon-based fossil fuels supplies over 81% of the energy demand, and hence the prospering industrial societies are responsible for the observed increase in carbon dioxide levels form preindustrial 280 ppm to over 412.5 ppm measured last year. The constantly increasing atmospheric CO2 concentration is highly likely to result in global warming, sea level rise and ocean acidification. To reduce the environmental footprint of modern societies and address the limitations of fossil recourses, the projected increase in global energy demand must go along with the implementation of low-carbon energy production and carrier systems. In this presentation, the current energy status and future options will be discussed and compared. It will then be concluded by introducing our research efforts in utilizing formic acid as a NET-ZERO hydrogen/energy carrier and e-fuel.

PDF file
世話人Vincent Tung

第374回化学システム工学専攻公開セミナー Manufacturing science and technology in real world biopharma manufacturing

2022年11月4日(金) 14:30-15:30
講演題目Manufacturing science and technology in real world biopharma manufacturing
講演者Dr. Michael Schneider
Global Head Technology Innovation Drug Product & MSAT
F. Hoffmann-La Roche AG
概要This presentation will give an overview on a global biopharmaceutical manufacturing from business, technology, and data science perspectives. The talk will cover the introduction of Roche, a global leading biopharmaceutical manufacturer, technical insights into drug product manufacturing, and the recent development in technical and data analytics aspects.
世話人Hirokazu Sugiyama (ex. 27227)

第373回化学システム工学専攻公開セミナー Current State-of-the-Art and Challenges in Anion-Exchange Membrane Fuel Cells

2022年11月4日(金) 13:30-15:00
講演題目Current State-of-the-Art and Challenges in Anion-Exchange Membrane Fuel Cells
講演者Prof. Dario R. Dekel
(Chemical Engineering Department, Technion, Israel)
概要Amazing progress has been achieved in the past five years of intensive research on Anion-Exchange Membrane (AEM) Fuel Cells (AEMFCs), bringing this technology significantly closer to the required levels for practical use in automotive (and other) applications. In material-related space, recent studies reported novel techniques for characterizing AEMs for fuel cells [1], as well as robust AEMs with hydroxide conductivities of 300 mS/cm [2]. In addition, new ionomeric materials and functional groups with increasing stability were introduced [3-5], and better Pt-free and PGM-free promising catalysts were developed [6-10]. On the fuel cells front, new AEMFCs based on CRM-free catalysts were successfully demonstrated [11-12], cells with record high power density outputs were obtained [13], materials able to operate under high-temperature AEMFC (HT-AEMFC) operation mode were reported [14], simulated materials and conditions to achieve AEMFC lifetime of 5,000-15,000 hours were theoretical demonstrated for first time [15-16], and cell life time of 2,000 hours of continuous operation was already experimentally proven [17]. Altogether, the research community has made very impressive progress in such a short period of time. Having said that, we are not yet there; several remaining challenges should still be overcome in order to allow this technology to be a serious alternative to the mainstream PEMFC technology. To achieve that goal, we need (A) ionomeric materials with higher alkaline stability at higher temperatures; (B) catalysts with higher activity towards hydrogen oxidation and oxygen reduction reactions to accomplish a full PGM-free (and even CRM-free) AEMFC; and, (C) a better understanding of carbonation issues while operating AEMFC with ambient air. We, at Technion, focus our efforts on these (and other related) research topics, aiming to make a significant impact on the fuel cell research community. In this talk, I will present and discuss the status of the AEMFC technology and discuss the main challenges and latest achievements to overcome them.

1. “Practical ex-situ technique to measure the chemical stability of anion-exchange membranes under conditions simulating the fuel cell environment”; Müller et al., ACS Mater. Lett. 2, 168-173, 2020.
2. “Measuring the true hydroxide conductivity of AEMs”; Zhegur-Khais et al., J. Membrane Sci. 612, 118461, 2020.
3. “Poly(bis-arylimidazoliums) possessing high hydroxide ion exchange capacity and high alkaline stability”; Fan et al., Nature Commun. 10(1), 2306, 2019.
4. "Increasing the alkaline stability of N,N-diaryl-carbazolium salts using substituent electronic effects"; Gjineci et al., ACS Appl. Mater. Interfaces 12, 44, 49617-49625, 2020.
5. “The reaction mechanism between tetraarylammonium salts and hydroxide”; European J. Organic Chemistry 21, 3161-3168, 2020.
6. “Porphyrin aerogel catalysts for oxygen reduction reaction in AEMFCs”; Zion et al., Adv. Functional Mater., 2021.
7. Peng et al., Angewandte Chemie International Edition 58, 4, 1046-1051, 2019.
8. “Effect of the synthetic method on the properties of Ni-based hydrogen oxidation catalysts”; ACS Appl. Energy Mater., 2021.
9. “Synthesis of CeOx-decorated Pd/C catalysts by controlled surface reactions for...”; Adv. Functional Mater. 30, 2002087, 2020.
10. “Transition-metal and nitrogen-doped carbide-derived carbon/CNT composites as cathode catalysts...”; ACS Catal. 11, 1920, 2021.
11. “Pt-free and PGM-free catalysts for anion exchange membrane fuel cells”; Truong et al., Energies 13, 582, 2020.
12. “An anion-exchange membrane fuel cell containing only abundant and affordable materials”; Energy Technology, 2000909, 2021.
13. Huang et al., J. Electrochem. Soc. 166, 10, F637, 2019.
14. “A high-temperature anion-exchange membrane fuel cell”; Douglin et al., J. Power Sources Advances 5, 100023, 2020.
15. “Predicting performance stability in anion exchange membrane fuel cells”; Dekel et al., J. Power Sources, 420, 118-123, 2019.
16. “Quantifying the critical effect of water diffusivity in AEMs for fuel cell applications”; Yassin et al., J Membr. Sci. 608, 118206, 2020.
17. Hassan et al., Adv. Energy Mater., 2001986, 2020.
世話人Kazuhiro Takanabe, ex. 21195

第372回化学システム工学専攻公開セミナー Circular business models in Asia and strategies for enabling a circular / wellbeing economy

2022年11月4日(金) 10:30-12:00
ミーティングID: 870 0521 8358
パスコード: 581855
講演題目Circular business models in Asia and strategies for enabling a circular / wellbeing economy
講演者Dr. Monique Retamal (The University of Technology Sydney)
Dr Monique Retamal is the Program Lead for the Resource Stewardship team at the Institute for Sustainable Futures, University of Technology, Sydney. She is an environmental engineer and social scientist and focuses her research on the policies, business models and social practices required to enable more sustainable consumption and supply chains.
現在、シドニー工科大学の研究機関であるInstitute for Sustainable FuturesにてResource Stewardship teamのProgram Leadを務める。環境工学と社会科学を専門とし、持続可能な消費と生産に向けた政策やビジネスモデル、そして社会的慣習のあり方をテーマに研究を進める。
概要Monique will present highlights from her research in relation to circular business models in Asia. This includes a recent study identifying the types of circular business models for plastics currently operating in India, and the barriers and enablers to their success. Monique is a lead researcher for the India-Australia Plastics Initiative which aims to develop a roadmap for the transition to a circular economy for plastics in India. In addition, she will also present key findings from earlier research on the factors enabling sustainable collaborative consumption in Southeast Asian cities.
Finally, Monique will share an overview of the 'Wellbeing Wardrobe' project, which conceptualises a post-growth wellbeing economy for the textile and garment industry. This research, undertaken on behalf of the European Environmental Bureau, brought together stakeholders from the textile and garment industry to develop a policy agenda for a more ambitious approach to textiles sustainability in Europe.
本発表では、これまでDr. Retamalが進めてきた研究のうち、アジアにおけるサーキュラービジネスモデルをテーマとした内容を中心とする。India-Australia Plastics Initiativeでリーダーを務めるインドのプラスチック製品のサーキュラービジネスモデルの話や、欧州環境局と作成した “Wellbeing Wardrobe”と名付けられた繊維や衣服製品の循環に向けた政策アジェンダについてご発表いただく。
世話人天沢 逸里(内線26876)

第371回化学システム工学専攻公開セミナー 化学工学からの医療への貢献

2022年9月27日(火) 10:00-12:00
Zoom にて開催
ミーティングID: 812 7959 3379
パスコード: 074576
講演者伊藤 大知
東京大学 大学院医学系研究科 疾患生命工学センター 教授
(兼任)大学院工学系研究科 化学システム工学専攻 教授
(兼任)大学院工学系研究科 バイオエンジニアリング専攻 教授
概要 化学工学は、移動現象論、各種単位操作、プロセス設計等を基盤とし、反応と分離を統合的に扱え、化学反応が関わる人工物と自然現象を統合的に扱うことができる貴重かつ有用な学問体系です。
世話人高鍋 和広(内線21195)

第370回化学システム工学専攻公開セミナー Low-Power Electronics and Strong Light-Matter Interactions with 2D Semiconductors

2022年9月16日(金) 15:00-17:00
(online participation) https://u-tokyo-ac-jp.zoom.us/j/9710860256?pwd=a3FDeHlEY2gxWnJlMWhKencveDFqZz09
Meeting ID: 971 086 0256
Passcode: 870251
講演題目Low-Power Electronics and Strong Light-Matter Interactions with 2D Semiconductors
講演者Prof. Deep Jariwala
(University of Pennsylvania)
概要The isolation of a growing number of two-dimensional (2D) materials has inspired worldwide efforts to integrate distinct 2D materials into van der Waals (vdW) heterostructures. While a tremendous amount of research activity has occurred in assembling disparate 2D materials into “all-2D” van der Waals heterostructures and making outstanding progress on fundamental studies, practical applications of 2D materials will require a broader integration strategy. I will present our ongoing and recent work on integration of 2D materials with 3D electronic materials to realize logic switches and memory devices with novel functionality that can potentially augment the performance and functionality of Silicon technology. First, I will present our recent work on gate-tunable diode and tunnel junction devices based on integration of 2D chalcogenides with Si and GaN. Following this I will present our recent work on non-volatile memories based on Ferroelectric Field Effect Transistors (FE-FETs) made using a heterostructure of MoS2/AlScN and also introduce our work on Ferroelectric Diode devices also based on thin AlScN.
If time permits, I will also cover the subject of strong light-matter coupling in excitonic 2D semiconductors, including formation of hybrid states in multilayers and superlattices. I will further present our recent work on giant linear dichroism in layered anti-ferromagnetic semiconductor FePS3 as well as scalable, localized quantum emitters from strained 2D semiconductors.
世話人Vincent Tung

第369回化学システム工学専攻公開セミナー Two-Dimensional Materials for Future Electronics

2022年6月29日(水) 16:00-17:30
Meeting ID: 875 5731 5708
Passcode: 747407
講演題目Two-Dimensional Materials for Future Electronics
講演者Prof. Lain-Jong (Lance) Li
(The University of Hong Kong)
概要With the dimension scaling in dimension, the transistor gate controllability becomes weaker owing to the pronounced source-drain tunneling. Hence, the transistor body thickness needs to be reduced to ensure efficient electrostatic control. New materials such as “ultra-thin” 2D semiconducting materials have attracted attention. In this short talk, I would like to provide our analysis and arguments on the possibility to scale the device dimension, for example down to N1 technology node, using transition metal dichalcogenides (TMD) semiconductors. Challenges on materials growth and device fabrication, as well as the progresses shall be discussed.
世話人Kazuhiro Takanabe, ex. 21195