Some gray powder has accumulated in the furnace flame arrester and control valve – is this due to salt formation caused by low temperatures?
Thread Content
The temperature has been relatively low in recent days, with the lowest temperatures reaching minus four to five degrees Celsius. The plant area might be slightly warmer. Due to a shortage of steam in the plant, steam heating using gas has not been activated. Recently, blockages in the flame arrestors and control valves have occurred in both the diesel hydrogenation and gasoline hydrogenation units; there is some gray powder present. Could this be salt formation resulting from low temperatures? The gas mainly consists of catalytic dry gas, coking dry gas, and some gas tank gas.
It is mainly impurities and gum-like substances in the dry gas; salts may also be involved. The best way to verify this is by putting these gray powders into water – gum-like substances generally do not dissolve, while salts can usually dissolve in water!
Can any kind of water be used for the experiment? Deionized water? Or can all of them be used?
In fact, the components of the salt-forming substances can be analyzed through testing, which will help determine the cause.