Estudo de adsorção de compostos sulfurados utilizando um diesel comercial dopado com benzotiofeno e dibenzotiofeno

Química Nova

Robison P. Scherer²  Álvaro L. Malvesti²  Sibele B. C. Pergher²  Wladmir Ferraz De Souza¹ 

[1] ,Universidade Regional Integrada do Alto Uruguai e das Missões Departamento de Química Erechim RS ,Brasil

关键词: sulphur compounds;    adsorption;    fuels;   

DOI  :  10.1590/S0100-40422009000100006

来源: SciELO

【 摘 要 】

Desulphurization process by adsorption was studied employing a commercial diesel dooped with 1000 mg/L of benzothiophene and dibenzothiophene. The adsorbents materials employed were three types of activated alumina (acid, basic and neutral). For comparison, adsorption process was made also using oxidized diesel sample. The results showed that the adsorbents were selective for sulphur compounds removal from fuels. The contact time have influence in adsorption process achieving 80% of removal for not oxidized dibenzothiophene. The three studied alumina types showed similar behavior and a greater selective in dibenzothiophene adsorption than benzothiophene. Dibenzothiophene removal is more effective in samples not oxidized, whereas the benzothiophene was almost totally removed in oxidized sample.

【 授权许可】

CC BY-NC   
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