Gas deoxidation and purification
Thread Content
There is a gas containing CO, CO2, H2, O2, and CH4 that needs to be deoxygenated and purified; the O2 concentration in this gas is 3–4% by volume. Do anyone have any good suggestions?
The oxygen content in your atmosphere is too high; by using a catalyst for deoxygenation, an oxygen level of 4 can result in a temperature of 600 degrees. The catalyst itself can withstand such temperatures, but it’s uncertain whether your container can handle them. Moreover, this type of atmosphere is extremely dangerous and prone to problems. There’s a method we’ve used before, which involves reducing the catalyst’s activity to make it inert; in that case, the reactions are quite intense
Another approach is to carry out two-stage deoxygenation at high space velocities, with water cooling used in between to remove heat； The membrane method is also one option, but its feasibility requires experimentation. Could the original poster provide the composition of the gas?