What emissions exit the LO-CAT unit?
Usually there are only two streams that leave the LO-CAT, the sulfur product, and the oxidizer vent gas. In most cases, vacuum belt filter or a simple bag filter produces the sulfur cake. The sulfur product that results from those two filters usually eliminates the need to have a separate liquid blowdown stream for the catalyst. The oxidizer vent stream may be able to be vented direct to the atmosphere. It depends on the composition of the gas being treated in the LO-CAT unit. In some instances, the oxidizer vent gas may contain some low level of hydrocarbon or ammonia, depending on the gas being treated, and may necessitate incineration or oxidation of the vent stream.
