Pd-Impregnated activated carbon and treatment acid to remove sulfur and nitrogen from diesel
| Autor: | André R. Lopes, Carlos Itsuo Yamamoto, Agnes de Paula Scheer, Guilherme Vaz Silva |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
inorganic chemicals
Inorganic chemistry Sulfur compounds adsorption General Physics and Astronomy chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences Acid oxidation Diesel fuel Adsorption Nitrogen compounds adsorption medicine General Materials Science Diesel Activated carbons General Chemistry 021001 nanoscience & nanotechnology Sulfur Nitrogen 0104 chemical sciences chemistry 0210 nano-technology Carbon Activated carbon medicine.drug Palladium |
| Zdroj: | Matéria (Rio de Janeiro), Volume: 21, Issue: 2, Pages: 407-415, Published: JUN 2016 Matéria (Rio de Janeiro) v.21 n.2 2016 Matéria (Rio de Janeiro. Online) instacron:RLAM |
| ISSN: | 1517-7076 |
| Popis: | Removal of sulfur and nitrogen compounds from national commercial diesel through adsorption onto activated carbon was studied. Brazilian commercial activated carbon samples (AC) were modified by acid oxidation and, alternatively, were impregnated with palladium chloride. Modified carbon samples showed a significant increase in the quantity of acid sites, particularly those AC submitted to impregnation with palladium. Adsorption capacity of the carbon samples increased proportionally to the increase in the acid groups. Adsorption efficiency of the activated carbon impregnated with palladium chloride was over 85% for nitrogen compounds and over 60% for sulfur compounds. The treatment studied was found to be an efficient option for the removal of sulfur and nitrogen compounds present in commercial diesel, and thus it could be an alternative pretreatment in the conventional hydrotreatment process. |
| Databáze: | OpenAIRE |
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