|
KMID : 1024520190280010065
|
|
Journal of the Environmental Sciences
2019 Volume.28 No. 1 p.65 ~ p.73
|
|
|
Manufacturing Optimization of Ni Based Disk Type Catalyst for CO2 Methanation
|
|
Lee Jae-Joung
Moon Dea-Hyun
Chang Soon-Woong
|
|
|
Abstract
|
|
|
|
The catalytic activity of Ni-0.2%YSZ (Yttria-Stabilized Zirconia) with different promoters was evaluated for CO2 methanation. The catalysts were weighed for mixing and they were dried at 110 °C for molding into disks. The concentration of CO2 and CH4 for conducting of CO2 methanation were analyzed by gas chromatography and the physical characteristics of the disk-type catalyst formed were analyzed by X-ray diffraction, scanning electron microscope and energy dispersive x-ray spectrometer. The addition of CeO2 as a promoter for Ni-0.2%YSZ (denoted as Ni-5%Ce-0.2%YSZ) resulted in the highest CO2 methanation. It also showed catalytic activity at a low temperature(200°C). Following this, ZrO2, SiO2, Al2O3 and TiO2 were added to Ni-5%Ce-0.2%YSZ to compare the CO2 methanation, and the highest efficiency was found for. Ni-1%Ti-5%Ce-0.2%YSZ Then, the concentration of Ti was increased to 10% and the catalytic activity was estimated using seven different types of commercial TiO2. In conclusion, ST-01 TiO2 showed the highest efficiency for CO2 methanation.
|
|
|
KEYWORD
|
|
|
CO2, Methanation, Ni catalyst, Disk type, TiO2
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|