Plasma treatment of heavy oil and its model compound using high voltage AC discharge under liquid. Issue 11 (24th August 2018)

• Record Type: Journal Article
• Authors: Liu, Han Xing; Yu, Hong; Yang, Kuan; Zhu, Bo Long; Zhu, Xiao Dong
• Is Part Of: Plasma processes and polymers. Volume 15:Issue 11(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-08-24
• Subjects: breakdown -- heavy oil -- high‐pressure discharges -- plasma treatment -- reforming; Plasma polymerization -- Periodicals; Plasma-enhanced chemical vapor deposition -- Periodicals; Plasma chemistry -- Periodicals
• DOI: 10.1002/ppap.201800063
• Languages: English
• ISSNs: 1612-8850

Abstract

Abstract : In this paper, the plasma treatments of heavy oil and its model compound n‐dodecane have been investigated using a high voltage discharge under liquid. The breakdown voltage for discharge ignition increased with gap distance in heavy oil and n‐dodecane. Compared with discharge in n‐dodecane, the breakdown voltage for heavy oil was lower. After plasma treatment of n‐dodecane, the gas products included H2 with a volume fraction of 38% and gas hydrocarbons with mainly acetylene. The high‐boiling fractions in liquid residue increased slightly and carbon particles with diameter 1–10 µm were formed. As discharge was carried out in heavy oil, similar gas products with higher H2 fraction were obtained, and the viscosity was enhanced. The present study demonstrates the feasibility of heavy oil conversion using high voltage AC discharge under liquid. Abstract : Plasma processing is a new and promising technique for heavy oil treatment. Plasma characteristics including temperatures and densities present great difference depending on discharge modes, which determines the treatment effect of heavy oil. More investigations need to be carried out associated with heavy oil treatment via discharge under liquid.