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For example. an oxide-nitride selectivity ratio of 100:1 means the slurry will remove oxides in a layer 100 times as fast as nitrides; this type of slurry would likely be used on an oxide layer or on an oxynitride layer where it is desired to remove only oxides. Often CMP applications will use multiple slurries with different selectivities in ...
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Jun 25, 2015· A lignosulfonate is a metallic sulfonate salt derived from the lignin recovered from processing wood waste. The common lignosulfonates are calcium and sodium lignosulfonate. Three grades of lignosulfonate are available for the retardation of cement slurries. Each grade is available as calcium/sodium or sodium salts. The three grades …
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Dec 01, 2015· Crude oils have a propensity to separate into the heavier and lighter phases. The heavy ends that separate from the crude oil and are deposited on the bottoms of storage vessels are known as "sludge.". It is a combination of hydrocarbons, sediment, paraffin and water. Sludge can accelerate corrosion, reduce storage capacity and disrupt ...
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Oct 27, 2017· Slurry is a fluid suspension of small particles in liquid. In trenchless construction, there are many methods and practices which include a slurry mixture. The use of slurry allows for the rapid movement of solid particles during the excavation process, and it is useful in applying pressure to stabilize a borehole.
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normal petroleum refining and not subject to RCRA permitting. In the final rule, the Agency has also specifically excluded oil-bearing residuals that go back into the refinery process. Furthermore, the oil recovered from these operations …
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Bio-Slurry is the controlled treatment of excavated soil in an enclosed vessel. The bio-slurry process is used for remediation of soil contaminated with explosives such as trinitrotoluene (TNT), Royal Demolition Explosive (RDX), and High Melt Explosive (HMX), and various other contaminants. It is a form of a bioreactor.
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Sep 15, 2022· The term "hazardous substance" is defined in CERCLA section 101 (14) to include substances listed under four other environmental statutes (as well as those designated under CERCLA section 102 (a)). The definition excludes "petroleum, including crude oil or any fraction thereof," unless specifically listed or designated under CERCLA. …
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Slurry is a mixture of a solid and a liquid. The density of a slurry can be calculated as. ρ m = 100 / [c w / ρ s + [100 - c w] / ρ l] (1). where . ρ m = density of slurry (lb/ft 3, kg/m 3). c w = concentration of solids by weight in the slurry (%). ρ s = density of the solids (lb/ft 3, kg/m 3). ρ l = density of liquid without solids (lb/ft 3, kg/m 3)
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The methods of testing cement for downhole application are based on performance testing. Testing methods are usually performed according to API specifications, though specifically designed and engineered equipment or tests are also used. The choice of additives and testing criteria is dictated primarily by the specific parameters of the well to ...
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Dec 01, 2012· Petroleum coke–sludge slurry (PCSS) is a new liquid fuel prepared by blending petrochemical sludge of high moisture contents into PCWS. Its gasification and combustion performance can be improved due to the addition of petrochemical sludge, which has higher volatile matter . PCSS technology cannot only dispose huge amounts …
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Aug 15, 2020· The results showed that biogas slurry addition improved the degradation of organic matter and total petroleum hydrocarbons (TPH) (especially C > 16), but also increased 18.0% of germination index and the humification degree of HA. The estrone from biogas slurry was removed during composting and did not affect the phytotoxicity level …
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Coal slurry is a waste fluid produced by washing coal with water and chemicals prior to shipping the coal to market. Using anywhere from 75 to 150 liters water per ton of coal, coal washing separates out non-combustible components and typically washes them away in a sludge known asslurry.12 Coal slurry is stored in large impoundments, which can ...
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Clarified slurry oil tank sediment and/or in-line filter/separation solids from petroleum refining operations (T) K171: Spent Hydrotreating catalyst from petroleum refining operations, including guard beds used to desulfurize feeds to other catalytic reactors (this listing does not include inert support media)
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Clarified oils (petroleum), catalytic cracked; Heavy Fuel oil [A complex combination of hydrocarbons produced as the residual fraction from distillation of the products from a catalytic cracking process. It consists of hydrocarbons having carbon numbers predominantly greater than C20 and boiling above approximately 350°C (662°F).
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Slurry rheology is a function of particle size and its distribution, solids loading, base liquid viscosity, and particle shape; the last particularly at high shear rates. A rather complete set of experimental measurements is reported by Papachristodoulou and Trass (1984) for bituminous coal in four grades of oil, from #2 fuel oil to heavy #6 bunker oil.
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Jun 26, 2021· Fluid Catalytic Cracking (FCC) is the conversion process used in petroleum refineries to convert the high-boiling point, high-molecular weight hydrocarbon fractions of petroleum (crude oils) into gasoline, olefinic gases, and other petroleum products. ... By definition, cement slurry is pourable. Cement mortar is a thicker paste-like mixture of ...
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slur•ry. (ˈslɜr i) n., pl. -ries, n. 1. a thin mixture of an insoluble substance, as cement, clay, or coal, with a liquid, as water or oil. 2. a thin slip used in ceramics. v.t. 3. to prepare a suspension of (a solid in a liquid). [1400–50; late Middle English slory, akin to slur 2]
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A process of producing a hydrocracking product in a slurry hydrocracking reactor. A pyrolysis oil, a hydrocarbon feedstock, and a hydrocracking catalyst is provided. The pyrolysis oil is combined with the hydrocarbon feedstock and the hydrocracking catalyst, the pyrolysis oil being maintained at a temperature of less than 100 °C until the pyrolysis oil …
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Slurry Fracture Injection―a process by which solid waste is ground, if necessary, and mixed with water or another liquid. The resulting slurry is then deposited into fractures created in the receiving formation by the hydraulic force of injection. Source: Natural Resources, Office of Conservation – General Operations, Louisiana ...
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