Selective catalytic oxidation was the main technology to process n-hexane which was primary pollutant of exhaust emission in polybutadiene rubber production.Pt/Al2O3 with additive of polyethylene glycol was synthesized,evaluated in industrial sidetrack test,and characterized with CO chemisorption and transmission electron microscopy(TEM).The result of industrial sidetrack test showed that the activity of Pt/Al2O3 researched in this paper was better than imported similar catalyst,and n-hexane could be fully oxidized at 250 ℃.CO chemisorption showed that Pt dispersion was 75.9% on the Pt/Al2O3 researched,for imported similar catalyst, only 58.7%.Pt particles were uniformly distributed on the surface of Al2O3 from TEM.Furthermore,stability was good when catalyst was applied in removing exhaust emission from practical polybutadiene rubber project.
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