Thermal Decomposition of Sulfur Compounds and their Role in Coke Formation during Steam Cracking of Heptane
| Autor: | Marko Djokic, Natalia Olahova, Nenad Ristic, Ruben Van de Vijver, Kevin Van Geem, Marie-Françoise Reyniers, Guy Marin |
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| Rok vydání: | 2016 |
| Předmět: |
Heptane
Chemistry General Chemical Engineering Inorganic chemistry Thermal decomposition Petroleum coke chemistry.chemical_element 02 engineering and technology General Chemistry Coke 010402 general chemistry 021001 nanoscience & nanotechnology complex mixtures 01 natural sciences Sulfur Industrial and Manufacturing Engineering Methane 0104 chemical sciences chemistry.chemical_compound Cracking 0210 nano-technology Naphtha |
| Zdroj: | Chemical Engineering & Technology. 39:2096-2106 |
| ISSN: | 0930-7516 |
| DOI: | 10.1002/ceat.201600219 |
| Popis: | Sulfur-containing compounds play a key role in many industrial processes. Particularly for the steam cracking process, they have been linked with increased olefin selectivity, CO formation, and coke inhibition. The influence of four different sulfur-containing additives, methanedithione, (methyldisulfanyl)methane, (methylsulfanyl) methane, and dimethyl sulfoxide, on product selectivity, coke deposition, and CO production during steam cracking of a surrogate light naphtha feed is investigated. The use of online comprehensive 2D gas chromatography with sulfur chemiluminescence detection (GCxGC-SCD) is the key enabling technology to characterize the sulfur compounds. Steam cracking in a pilot-plant unit revealed that all studied sulfur compounds are efficient in reducing the CO yield. Simultaneously, they strongly promote coke. |
| Databáze: | OpenAIRE |
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