Does the nitrogen in syngas need to be removed in the coal-to-methanol process?
Thread Content
In the coal-to-methanol process, the gas exiting the gasifier that uses pulverized coal as feed contains some nitrogen, and this nitrogen cannot be removed through low-temperature methanol washing. Therefore, an additional process is required to remove the nitrogen before it can enter the methanol synthesis unit Should a nitrogen removal process still be added after the methanol synthesis unit?
There is a small portion that does not require removal, and our factory does not have any devices for removing it
There is no need for removal; the off-gases generated after synthesis can be used as fuel, thereby reducing the need for nitrogen removal equipment and avoiding energy waste.
There is no need for removal; the off-gases generated after synthesis can be used as fuel, thereby reducing the need for nitrogen removal equipment and avoiding energy waste.
This portion of nitrogen will be removed along with the synthesis purge gas, so there is no need for a separate denitration device.
I would like to ask how the release ratio should be determined