Journal
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
Volume 170, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jaap.2023.105931
Keywords
Liquid phase plasma; In -situ hydrogenation; Hydrocracking; Cracking products
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In-situ hydrogenation by liquid phase discharge with non-uniform electric field was used to enhance the efficiency of heavy oil utilization. The experiments on discharge frequency and single discharge energy in n-hexadecane showed that the calorific value increased with increasing single discharge energy and significantly improved when the discharge frequency reached 1.7 kHz. Furthermore, the calorific value in conversion part increased by 10.16% after a discharge time of 30 s, providing sufficient evidence for fast in-situ plasma-enabled hydrogenation.
Hydrogenation is an effective way to improve the efficiency of heavy oil utilization. In order to fully make interactions between active species such as hydrogen radicals with heavy oil, an innovative heavy oil upgrading method for in-situ hydrogenation by liquid phase discharge with non-uniform electric field was applied. In this work, experiments on discharge frequency and single discharge energy were made to discuss the calorific value in n-hexadecane (a heavy oil model compound). It was found that when the single discharge energy was in the range of 2.22-6.18 mJ, the calorific value gradually increased as the single discharge energy increased. The result also showed that when the discharge frequency reached 1.7 kHz, the hydrogenation performance was significantly better. In addition, the calorific value in conversion part increased by 10.16% when the discharge time reached 30 s compared to the original, which further provide sufficient evidence for the fast in-situ plasmaenabled hydrogenation.
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