CATEGORY: SYNGAS
Fuel, Volume 94, April 2012, Pages 64–69
Production of synthetic natural gas by means of
a catalytic nickel membrane
Shin-Kun Ryi, Sung-Wook Lee, Kyung-Ran Hwang,
Jong-Soo Park
Energy Materials Center, Korea Institute of Energy Research (KIER), 102
Gajeong-ro, Yuseong-gu, Daejeon 305-343, South Korea
Abstract
Authors describe a novel method of methanation
using a catalytic nickel membrane for synthetic natural gas (SNG) production.
The methanation reaction is exothermic, so heat that is generated is removed
from the reactor to prevent the methane yield from being reduced and to
minimize deactivation of the catalyst due to thermal stress at hot spots.
Because the catalytic nickel membrane was fabricated
by uniaxial-pressing and thermal treatment of nickel powder, it could readily
remove heat from the reactor. Methanation tests conducted at various
temperatures, residence times and pressures revealed that the CO and H2
conversions increased with increasing temperature and pressure and reached a
maximum value of 99 and 80% at a temperature, residence time and pressure of
350 °C, 94 ms and 280 kPa, respectively. Using the methanation test results, a
new reactor could be designed for high exothermic reactions.
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