Methods for treating exhaust gases from production
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A large amount of waste gas is generated during the production process, such as from the evaporation of solvents. I’m curious to know how your companies handle this waste gas in order to meet the emission standards.
For those containing sulfur and nitrogen, a desulfurization tower is used; for those with low concentrations, they are released into the atmosphere or absorbed using water spray.
The main components of the waste gases emitted by our company are various solvents; some products also generate gases such as SO2, H2S, and HCl during the production process
Different waste gas treatment methods exist, and it depends on what kind of waste gas you have – some are water-soluble, some are acidic...
Waste gas containing large amounts of solvent is condensed in a condenser to recover the solvent before being discharged； For acidic waste gases such as hydrogen chloride, an absorber can be used to absorb water and recover the acid; this helps increase profits, reduces pollution, and is beneficial for the country, the public, as well as individuals.
I agree with what was said above. When dealing with waste gas containing solvents, we used to condense it through a condenser in order to recover the solvents; especially in summer, the amount of solvent that could be recovered was quite significant. To treat acidic waste gas, it is possible to use weakly alkaline water for spraying
The waste gas here cannot be condensed and recovered using a condenser, such as the waste gas emitted from the ventilation in the operation room and during various operational processes
Organic waste gas can be treated by catalytic or oxidative combustion, generating heat as a by-product while ensuring emissions meet regulatory standards.
We generally discharge the waste through acid (alkali) spray towers and activated carbon absorption towers
Reply to 7# luo0203: These places can also be used to connect exhaust gases; using exhaust gas collection hoods is also an option
Treat them separately; don’t combine everything at the end. Some of them are absorbed using other solvents, while the waste alkaline oxidation exhaust gas from our equipment is directly sent to the pyrolysis furnace for combustion.