4:00 PM - 4:15 PM
[PPS09-08] Reaction efficiency between hydrogen and carbon monoxide on a catalytic substrate of iron, nickel or its alloy
Keywords:Fischer-Tropsch reaction, Surface reaction, Solar nebula
We developed an experimental system to test the catalytic chemical reactions in the temperature and pressure ranges of 50-800 K and 10-3-103 Pa, respectively, using a metallic plate as a catalytic substrate. Our experimental system has a temperature-controlled substrate, a Fourier transform infrared spectrometer (FT-IR), and two quadrupole mass spectrometers (Q-MSs). FT-IR is able to measure the vibration modes of adsorbed and produced molecules on the substrate. Currently, several IR features has been detected at the temperature below 150 K. To identify the mass signal of produced methane and water in the Q-MSs spectra, deuterium was used instead of hydrogen. The intensity of the signal of masses 20 and 44 decreases as temperature decrease from 800 K. The mass 20 corresponding to D2O and CD4, which are first products in the Fischer-Tropsch type reaction, was detected. Simultaneously, mass 44 corresponding to CO2 was also detected. In our presentation, the substrate dependence of the reaction efficiency will be presented.
 Van der Laan & Beenacker Catal. Rev. Sci. Eng. 1999.
 Chaumette et al. Top Catal. 1995.
 Anderson The Fischer-Tropsch synthesis 1984.
Acknowledgment: This work was supported by a grant-in-aid for Scientific Research on Innovative Areas "Evolution of molecules in space from interstellar clouds to proto-planetary nebulae" supported by the Ministry of Education, Culture, Sports, Science and Technology, Japan (25108003).