Long Chain Alkylated Ionic Liquids as Pour Point Depressant and Rheology Improver for Crude Oil

Nontarget Identification of Novel Per- and Polyfluoroalkyl Substances (PFAS) in Soils from an Oil Refinery in Southwestern China: A Combined Approach with TOP Assay

“…In the petroleum industry, NTf2 is used as a “green” lubricant replacement for traditional petroleum-based lubricants and a demulsifier for separating water in crude oil emulsions . Additionally, it serves as a pour point depressant and a rheology improver for crude oil . These diverse applications of NTf2 within the petroleum industry offer a plausible explanation for its presence in the oil refinery.…”

Chemical mitigation technology for wax deposition in submarine oil pipeline systems

“…After adding PFES, the two endothermic peaks are merged and both the melting range and the peak temperature of solid-liquid transition are decreased gradually with increasing PFES concentration. Meanwhile, through the cooling cycle, all exothermic peaks of liquid-solid transition corresponding to wax WAT and solid-solid transition are decreased gradually with increasing the PFES dosages [4,18]. These results indicated that doping the paraffin wax with PFES which shifted the phase transition peaks in the wax thermograms to lower temperatures and they were broadened with remarkably less area (ΔH) (lower amount of deposited wax).…”

“…Many types of copolyester were synthesized and utilized as PPDs and viscosity modifiers [4,[15][16][17], while the high cost of the raw materials and preparation difficulties always obstacle using of these additives in large or industrial scale. Therefore, looking for waste of renewable source as waste vegetable oil used as reliable starting material to access new products with a wide array of structural and functional variations to avoid high cost and address problems in the environment, in waste disposal caused by leakage into marine [18,19]. These oils they are classed as the International Convention for the Prevention of Pollution from Ships (MARPOL) Y ("Noxious liquid substances with if discharge into the sea from tank cleaning of de-ballasting operations, or deemed to present a hazard to either marine resources or human health or cause harm to amenities or other legitimate users of the sea and therefore justify a limitation on the quality and quantity of the discharge into the marine environment").…”

Mini-review on Recent Advances in the Application of Surface-Active Ionic Liquids: Petroleum Industry Perspective

“…Furthermore, it is thermally stable and did not corrode cast iron in an ambient environment. 130 The research related to the IL as flow improvers are still very few and much research can be done.…”

“…Among the different anion–cation combinations, [C 14 mim]­[NTf 2 ] and [C 12 mim]­[NTf 2 ] was selected, as it was fully miscible with hydrocarbon oils. Furthermore, it is thermally stable and did not corrode cast iron in an ambient environment . The research related to the IL as flow improvers are still very few and much research can be done.…”