Site items in: Content by Author Yasushi Fujimura

Content Types

To take a deep dive into our archives, please select filters and click Search. Search Results (Found )

Display Options

No Results Found.

Please try modifying your filters and filtering again.

Please add a keyword and/or a dropdown filter to generate a precise search, or use the sitewide search at the top of the page for a more general search.

Searching... Please wait[cancel Search]

Presentation

Exhaust gas treatment catalysts for ammonia-fueled engines

Issei Tsuji Tomoo Ikoma Hiroki Okamoto Nobuyuki Aoi Toshiya Nashida Yasushi Fujimura

Ammonia is expected to be a promising zero-emission fuel because it does not emit CO2 during combustion. However, the exhaust gas from the actual ammonia-fueled engines contains unburned ammonia, nitrogen oxides (NOx), and nitrous oxide (N2O), and there is a need to develop technologies to remove these harmful substances. Unburned ammonia can be removed by a catalytic combustion method using a conventional oxidation catalyst, but NOx and N2O are simultaneously generated as byproducts. Therefore, Nikki-Universal has developed a new catalyst that can remove ammonia at high efficiency while reducing the generation of NOx and N2O. We have also developed a…

Presentation

Demonstration and Optimization of Green Ammonia Production Operation Responding to Fluctuating Hydrogen Production from Renewable Energy

Yasushi Fujimura Mototaka Kai Takayoshi Fujimoto Sho Fujimoto Ryousuke Atsumi Masayasu Nishi Takehisa Mochizuki Tetsuya Nanba

Ammonia is a promising hydrogen carrier to transport green hydrogen from overseas to Japan at lower cost and resulting in lower lifecycle CO2 emission. Low carbon ammonia will be produced by fossil fuel reforming with CCS or EOR at the early stage of the introduction of ammonia fuel to the market. Green ammonia production from renewable sources is the ultimate goal, but there are some issues to commercialize. The low capacity factor, which is caused by the fluctuation of solar irradiation or wind speed, is a big issue which leads to ammonia production costs. In this presentation, we would like…

Presentation

International Cooperation for Implementation of Green Ammonia

Yasushi Fujimura

International Cooperation for Implementation of Green Ammonia Yasushi Fujimura, JGC Corporation

Presentation

Demonstration of CO2-Free Ammonia Synthesis Using Renewable Energy-Generated Hydrogen

Mototaka Kai Yasushi Fujimura Takayoshi Fujimoto Hideyuki Takagi Yuichi Manaka Tetsuya Nanba

In Japan, the government funding project SIP, Strategic Innovation Promotion Program, supports the research, development and demonstration of “Energy Carriers”. The concept of the “Energy Carriers” value chain is to produce hydrogen energy carriers overseas from fossil resources using CCS or renewable energy, and transport it to Japan for utilization as clean energy. The purpose of the program is to help realize a low-carbon society in Japan by using hydrogen. Among energy carriers, ammonia is the one of the most promising carriers, because of the ease of transportation as a liquid, higher hydrogen density, and proven technologies for commercial and…

Presentation

Cost Evaluation Study on CO2-Free Ammonia and Coal Co-Fired Power Generation Integrated with Cost of CCS

Kazutaka Hiraoka Yasushi Fujimura Yoshiyuki Watanabe Mototaka Kai Ko Sakata Yuki Ishimoto Yuji Mizuno

This study presents a cost estimation for electricity generated by CO2-free ammonia and coal co-firing. Regulation of CO2 emissions seems to be gaining pace due to the global warming issue so the introduction of CO2-free energy in power generation has become desirable. Ammonia is one of the potential energy carriers for power generation and development of ammonia combustion technology with low NOx emissions has been conducted in Japan. In order to investigate the feasibility of the introduction of CO2-free ammonia in Japan from both the technical and economic viewpoints, we estimated the ammonia supply chain cost from ammonia production integrated…