How to address liquid carryover caused by high gas flow velocity in the semi-water gas desulfurization tower?
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The high gas flow rate in the semi-water gas desulfurization tower causes problems with gas-liquid separation; should a gas-liquid demister be installed? Do any of your friends’ workplaces have specific models and patterns?
When the gas velocity in the tower exceeds the critical value, liquid will be carried along; a demister can be installed, or an external gas-liquid separator can be used
Whether to install a demister depends on the degree of liquid carryover. Moreover, most desulfurization towers already come equipped with demisters; if the liquid carryover is severe, adding another demister will not solve the problem and may even lead to various negative effects. Regarding what you said about the high gas flow rate, it is actually a liquid-coated surface phenomenon. I have a few suggestions you might consider. First: The low temperature of the desulfurization liquid leads to an increase in viscosity, which causes liquid carryover. (The reason for the low temperature of the desulfurization liquid may be the low temperature of the shift gas.) Second: The desulfurization liquid is quite dirty, so filtering needs to be improved. Third: Check for issues with static equipment, such as trays, packing, etc.