الفهرس 
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Abstract
Unprocessed hydrocarbon oil frequently contains significant levels of mercury, causing damage to metallic processing components as well as posing a health concern to employees and the environment. The mercury removal unit linked with the natural gas processing plant failed to remove all of the mercury, and mercury was then spread throughout the removal unit. The majority of mercury that hasn’t been eliminated is found in polar solutions. Styrene-co-acrylamide-graft-polyaniline and styrene-co-acrylamide- graft-poly(2-chloroaniline) were synthesized and characterized. Free radical emulsion copolymerization of styrene-acrylamide (14:1) with ammonium persulphate (APS) at 60 0C produces this copolymer. The grafting technique was also accomplished using APS and oxidation chemical polymerization of the same copolymer with aniline and 2-chloroaniline. To confirm the polymerization process and analyze the polymeric samples as new sorbents for Hg, researchers used infrared (IR), x-ray diffraction (XRD), scan electron microscopy (SEM), transition electron microscope (TEM), thermogravimetric analysis (TGA), and Brunauer-Emmett-Teller (BET) (II). The isotherm and adsorption kinetics models were both tested. Hg (II) was adsorbed as a multi-layer on the produced mesopores materials in the majority of cases. The grafting technique enhance the copolymer’s ability of removal of Hg (II) linked with the natural gas processing plant. The grafting was complete by the oxidation free radical techniques to produce mesopores polymeric materials based on styrene-co-acrylamide. The aniline derivatives used in grafting is 2-chloroaniline beside aniline. The synthesized polymeric materials were used to remove mercury from the aqueous solution section of the mercuric removal unit. In the case of grafts, the removal efficiency was close to 100 percent especially with styrene-co-acrylamide- graft-poly(2-chloroaniline).