Gas Scrubbing

A variety of spray nozzles are used in refining and petrochemical processing to handle the injection and introduction of steam, air, hydrocarbon feed, coke, and various other chemicals. Nozzles must be designed to retain their dimensional and structural integrity from turnaround to turnaround. Abnormal erosion or fracture can seriously jeopardize process safety and the economics of the operation.

Spray nozzles are frequently used to distribute the process fluids into the vacuum distillation units. Well atomized sprays produced by nozzles increase the exposed surface area of the process fluid and thereby increase the evaporation rate and separation efficiency. When packed columns are utilized in vacuum towers, where the gas side pressure drop must be low, spray nozzles also uniformly wet the packing, over which the gas flows and contacts the liquid.

Scrubber nozzles remove pollutants and other chemical contaminants from process gases, liquids, and equipment. Scrubbers also remove acids from chemical processing off-gases.