100 项与 Nikki Universal Co., Ltd. 相关的临床结果
0 项与 Nikki Universal Co., Ltd. 相关的专利（医药）
2018-03-01·Journal of the Japan Petroleum Institute
Degradation Factors of Ni/TiO<sub>2</sub> Catalysts for Selective CO Methanation: Effect of Loss of Residual Cl on Catalyst
作者: Honma, Tetsuo ; Nariyuki, Akane ; Satokawa, Shigeo ; Yanagita, Akihide ; Shimoda, Naohiro ; Tada, Shohei ; Takahashi, Makoto
Accelerated deterioration tests for selective CO methanation over Ni/TiO2 catalysts were performed to investigate the catalyst degradation factors.The accelerated deterioration test treated the catalyst in the reaction gas flow at the specified temperature (200, 250 or 300 °C) for 24 h.After the accelerated deterioration test, the Ni/TiO2 selectivity in CO methanation was reduced due to the enhancement of an undesirable reverse water-gas shift reaction.Powder X-ray diffraction found no change in the TiO2 structure between the fresh and spent catalysts.In-situ X-ray absorption spectroscopy demonstrated that the Ni species reduced by H2 were present as metallic Ni and remained unchanged in the fresh and spent catalysts.The number of surface Cl species for the spent catalyst was much smaller than that for the fresh catalyst.Therefore, disappearance of surface Cl components during the accelerated deterioration test caused the degradation of Ni/TiO2 catalysts for selective CO methanation.
1981-01-01·Sen'i Gakkaishi
Reverse Osmosis Treatment of Industrial Waste Water
作者: AKABANE, AKIRA
A review with 6 references
New processes. 3. UOP [Universal Oil Products] catalytic combustion installation. Removal of waste gases
作者: Nakajima, Kazuo
A review with 10 references
100 项与 Nikki Universal Co., Ltd. 相关的药物交易
100 项与 Nikki Universal Co., Ltd. 相关的转化医学
