The bleed rate of a grease may change over time due to degradation the thickener microstructure and decrease in oil content, as is released from grease. In this work, properties—quantified by permeability—of five types lubricating greases are studied. Controlled shear ageing performed using worker. It shown that does not significantly worker at room temperature, opposed changes rheology microst...

The physicochemical qualities of a refinery effluent and water and sediment of an effluent receiving water body were investigated. The treated refinery effluent contained very high concentrations of phenol (11.06 mg/l), oil and grease (7.52 mg/l), ammonia (8.52 mg/l), COD (91.76 mg/l), TDS (390.6 mg/l) and phosphate (6.2 mg/l), but low in sulphide, nickel, lead, copper and chromium, which were ...

The treatment of spent oil-in-water emulsion (SOWE) from a non-ferrous metal-processing plant by using aluminum sulfate and hydrated lime was studied in order to determine the purification efficiency, optimize the operating conditions and scale up the treatment process. The purification efficiency was estimated by comparing the compositions of the SOWE and the processed wastewater. The treatmen...

One of the principal components of the contaminant load in urban stormwater runoff is oil and grease (O&G) pollution, resulting from vehicle emissions. A mulch layer was used as a contaminant trap to remove O&G (dissolved and particulate-associated naphthalene, dissolved toluene, and dissolved motor oil hydrocarbons) from a synthetic runoff during a bench-scale infiltration study. Approximately...

This paper presents a new nanolubricant for the intermediate gearbox of the Apache aircraft. Historically, the intermediate gearbox has been prone for grease leaking and this natural-occurring fault has negatively impacted the airworthiness of the aircraft. In this study, the incorporation of graphite nanoparticles in mobile aviation gear oil is presented as a nanofluid with excellent thermo-ph...

Five common ball bearing greases were studied using a grease-on-paper test configuration, where the bleeding of is described by dynamics driving capillary pressure provided paper and its opposing counterpart in grease matrix. The Washburn-like model for extracting retaining pressure, determined affinity oil matrix, has proven to be applicable made various type thickeners base oils, can potentia...

In this work, a chemical modification method was used to prepare silicone grease with high thermal conductivity. We report two preparation methods for conductive fillers, which are hydroxylated boron nitride-grafted carboxylic oil (h-BN-OH@CS) and amino (h-BN-NH2@CS). When h-BN-OH@CS h-BN-NH2@CS were filled 30 wt% in the base grease, conductivity 1.324 W m−1 K−1 0.982 K−1, is 6.04 4.48 times th...

Two trials that utilized 356 yearling steers were conducted to evaluate the effects of fat sources (3.5% of diet dry matter) in steam-flaked milo finishing diets. Fats differed in fatty acid composition and level of free fatty acids. In Trial 1, soybean oil, tallow and yellow grease were compared to a nonfat control. Feeding fat increased (P less than .05) daily gain, feed efficiency, estimated...