Regarding the temperature control issue of DAVY
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Dear all: In DAVY’s methanation process for converting coke oven gas into LNG, the outlet temperature of the main reactor does not meet the design specifications. We have currently started up the heating furnace to address this issue, and we are seeking your advice on how to resolve this abnormality.
I’m in the * stage – do you use a heating furnace to increase the inlet temperature in order to indirectly raise the outlet temperature? As long as the catalyst’s active temperature permits it, increasing the inlet air temperature is also an option; I’m not familiar with coke oven gas – it’s not clear whether raising its concentration can increase the reaction heat
It is sufficient for the hot spot temperature in the methanation reactor to reach the specified value; the outlet temperature does not necessarily need to meet the design requirements.
The composition of coke oven gas at the plant is designed based on those data from the design stage, and it is not yet possible to improve it at present.
Well, to be precise, it’s the bed temperature that doesn’t reach the required level. Additionally, I would like to ask whether the main methane tank has changed color due to high temperatures – could this be an issue with the quality of our fire-resistant construction?
If it is overheated, it may also cause the temperature-sensitive paint to change color.