Absorbent
Every petroleum product has impurities, toxic or poisonous material where sulphur is one of them, which is present in higher percentage above all other, so for removing sulphur content, which may be in the form of hydrogen sulphide trace, are mostly absorbed on solid surface after maximum removal in pretreatments operations, for absorption process a Zinc oxide is used as absorbent, it made into cylindrical shaped extrude which is used to absorb Hydrogen Sulphide into its small pores, and the dimensions of the cylinder would be about 4mm diameter and 8 mm height.
