Mesocarbon microbeads (MCMBs) are a valuable carbon material, and the production of this material highly depends on the reaction conditions and feedstock properties. In the present study, supercritical fluid extraction fractionation (SFEF) technology…
After the quinoline insoluble fraction was removed, petroleum pitch (PP) was brominated under ultraviolet light irradiation for 3 to 9 h with a bromine to PP mass ratio of 1:20 to prepare brominated PPs (BPPs). Synthetic pitches (SPs) were produced…
Fractions of coal tar and coal direct liquefaction oil were selected as the research objectives, and they were analyzed by GC-MS/FID (Gas Chromatography-Mass Spectrometer/Flame Ionization Detector), where MS was used for qualitative analysis and FID…
The possible threats of external corrosion and stress corrosion cracking on a series of pipelines in Kuwait have been investigated. The pipelines were constructed from API 5L Grade B steel and tended to be coated with coal tar enamel or polyethylene.…
The molecular composition and structure of heavy oil and the subfraction have always been one of the most controversial topics despite the continuous improvement of detection and analytical methods. In this contribution, the composition and structure…