Coke oven gas purification scheme behind the gas holder
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After passing through the various processing stages in the chemical production unit, the coke oven gas from our company is sent to the gas holder for use in ammonia synthesis. There is a lot of debris (black in color) on the valve of the compressor located after the gas holder, and it needs to be cleaned regularly. I’m asking if anyone here knows any simple and effective methods for purification?
Does it occur with three-stage compression or four-stage compression?
We’ve encountered this situation as well; is the dark substance dust or tar?
May I ask if your company uses a surface dust removal station or high-pressure ammonia water for loading coal into the coke ovens? The black impurities are likely to be tar particles; it would be better to install a filter at atmospheric pressure there, with one layer of oil remover and another layer of coke.
First use electrostatic defouling, then water bath dust removal; if desulfurization is needed, it can be added between the two steps.
Electrostatic dust removal works well; of course, the voltage must be sufficient. Choosing a reliable electrostatic dust removal manufacturer is very important