2018 Fiscal Year Annual Research Report
Synthesis of Crystalline Microporous Materials with New Composition under Extreme/Non-equilibrium Conditions
| Project/Area Number |
18J22185
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
ZHU JIE 東京大学, 工学系研究科, 特別研究員(DC1)
|
|---|
| Project Period (FY) |
2018-04-25 – 2021-03-31
|
| Keywords | continuous flow / zeolite synthesis / emulsion-based / efficient production |
|---|
| Outline of Annual Research Achievements |
My Ph.D. research mainly focuses on the rational synthesis of crystalline microporous materials with novel structures and compositions, and explore their potentials in catalytic reactions. In the past year(FY2018), I achieved an ultrafast, continuous flow synthesis of three industrially important high silica zeolites, namely ERI, *BEA and CHA, with an emulsion method, which of great importance for the efficient production of zeolites and further broaden their applications. We demonstrated that the emulsion system offers a unique opportunity to ease the issue of viscosity increase and allow the products to flow smoothly out of the reactor in forms of a suspension. This emulsion-based method can be established as a general approach for the continuous flow synthesis of zeolites.
|
| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
The research progress was rather smooth as initial planned. An emulsion-based, continuous flow synthesis of zeolites was successfully achieved. A paper on the continuous synthesis of zeolites with emulsion method has been published on Reaction Chemistry and Engineering. In addition, the synthesized ERI zeolite is now studied in the selective catalytic reduction of nitrogen oxide with ammonium (NH3-SCR) and exhibited unprecedented activity, which is comparable to the performance of the commercial SCR catalyst--CHA zeolite. A paper on this topic is in preparation and will be submitted soon.
|
| Strategy for Future Research Activity |
As for the future work, main efforts will be devoted to catalytic reaction and in situ characterization of the synthesized materials. During the past year, a continuous flow synthesis of ERI zeolite was achieved and Cu-ERI exhibited unprecedented activity in NH3-SCR reaction. In the next step, Cu-ERI zeolite will be further evaluated in another promising reaction-the conversion of methane to methanol, which is considered to be the holy grail of catalysis research. The copper active sites in these two reactions will be quantified and compared using in situ characterization, especially X-ray absorption spectroscopy (XAS). Identifying more active and selective materials and understanding the mechanisms are crucial to improve these two reactions toward the goal of a workable applied process.
|
-
-
-
-
-
-
-
[Presentation] Addressing the Viscosity Challenge: Ultrafast, Stable-flow Synthesis of Zeolites with an Emulsion Method2018
Author(s)
Jie Zhu, Zhendong Liu, Yasuo Yonezawa, Kazuto Honda, Satoshi Okada, Shigeru Deguchi, Tatsuya Okubo, Toru Wakihara
Organizer
The 50th Autumn Meeting, The Society of Chemical Engineers, Japan
-
[Presentation] Ultrafast Synthesis of High-Silica Erionite Zeolite as a Catalyst for NH3-SCR2018
Author(s)
Jie Zhu, Zhendong Liu, Kenta Iyoki, Chokkalingam Anand, Kaname Yoshida, Yukichi Sasaki, Sohei Sukenaga, Mariko Ando, Hiroyuki Shibata, Takeshi Ohnishi, Masaru Ogura, Tatsuya Okubo and Toru Wakihara
Organizer
2018 AIChE Annual Meeting
Int'l Joint Research
