Purification Section
Crude Benzene Section
Benzene Washing Tower
The benzene scrubber is the primary equipment in the benzene recovery section, and its function is to use atmospheric-pressure absorption to remove benzene and naphthalene from coke oven gas by means of tar wash oil.
Crude Benzene Tubular Heater
The tubular furnace is the primary equipment in the benzene stripping unit, tasked with heating the benzene-rich oil to 180°C–190°C while simultaneously superheating the direct steam used for benzene removal to 400°C–450°C.
Lanchar Project
The primary cooler is the main equipment in the cold-blast electrostatic precipitator section. Its function is to use cooling water to indirectly cool raw coke oven gas from 82°C to 83°C down to approximately 22°C, while removing most of the tar and naphthalene from the gas. It is of a horizontal-tube design, typically divided into two or three stages, and is cooled using 32°C recirculating water and 16°C chilled water.
