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SBC resin
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Styrene-butadiene copolymer. See K-Resin® SBC.
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Scentinel® odorant
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Chevron Phillips Chemical’s proprietary trademark for its line of odorants used to give natural gas and propane a distinctive odor.
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Shell Storage Capacity
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The design capacity of a petroleum storage tank which is always greater than or equal to working storage capacity.
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Soltex® additive
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Chevron Phillips Chemical’s proprietary brand of drilling mud additive. Soltex® additive is used in water, oil and synthetic-based drilling fluids to stabilize shale formations and increase hole lubricity for oil and gas drilling.
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Soltrol® isoparaffin
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Chevron Phillips Chemical’s proprietary trademark for its line of isoparaffin solvents used for parts cleaning and degreasing applications as well as solvents in inks, paints, and agrochemicals.
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Solute
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A substance that has been completely dissolved in a solvent.
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Solvent
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A substance, typically in the liquid state, capable of dissolving another substance. Chemical solvents are made of chemical building blocks (e.g. ethylene, propylene and butene). Their molecular structures are well defined and they are sold based their specifications.
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Special Naphthas
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All finished products within the naphtha boiling range that are used as paint thinners, cleaners, or solvents. These products are refined to a specified flash point. Special naphthas include all commercial hexane and cleaning solvents conforming to ASTM Specification D1836 and D484, respectively. Naphthas to be blended or marketed as motor gasoline or aviation gasoline, or that are to be used as petrochemical and synthetic natural gas (SNG) feedstocks are excluded.
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Specification
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A.k.a. spec, spec sheet, or product spec. A specification is a list of product quality measures that represent a requirement if designated by a user and a guarantee if designated by a producer. Qualities of interest may include one or more characteristics such as density, specific impurities, melting point, boiling point, flash point, or color. The listed qualities generally predict product performance. When referring to a product sample, specification indicates the characteristics of the sample as determined by lab testing. See Technical Data Sheet.
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Steam
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Steam, purchased for use by a refinery, that was not generated from within the refinery complex.
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Still Gas (Refinery Gas)
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Any form or mixture of gases produced in refineries by distillation, cracking, reforming, and other processes. The principal constituents are methane, ethane, ethylene, normal butane, butylene, propane, propylene, etc. Still gas is used as a refinery fuel and a petrochemical feedstock. The conversion factor is 6 million BTU’s per fuel oil equivalent barrel.
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Stock Change
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The difference between stocks at the beginning of the reporting period and stocks at the end of the reporting period. Note: A negative number indicates a decrease (i.e., a drawdown) in stocks and a positive number indicates an increase (i.e., a buildup) in stocks during the reporting period.
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Stoichiometry
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A calculation commonly used in chemistry in which the moles of one chemical are compared to the moles of a second chemical.
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Strategic Petroleum Reserve (SPR)
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Petroleum stocks maintained by the Federal Government for use during periods of major supply interruption.
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Styrene
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An aromatic monomer derived from benzene and ethylene used to produce a wide variety of polymers with diverse end uses that include packaging, automotive applications, electronic parts, rubber articles, paper, housewares, tires, luggage, construction materials, carpeting, and toys.
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Sulfur
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A yellowish nonmetallic element, sometimes known as “brimstone.” It is present at various levels of concentration in many fossil fuels whose combustion releases sulfur compounds that are considered harmful to the environment. Some of the most commonly used fossil fuels are categorized according to their sulfur content, with lower sulfur fuels usually selling at a higher price. Note: No. 2 Distillate fuel is currently reported as having either a 0.05 percent or lower sulfur level for on-highway vehicle use or a greater than 0.05 percent sulfur level for off- highway use, home heating oil, and commercial and industrial uses. Residual fuel, regardless of use, is classified as having either no more than 1 percent sulfur or greater than 1 percent sulfur. Coal is also classified as being low-sulfur at concentrations of 1 percent or less or high-sulfur at concentrations greater than 1 percent.
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Supply
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The components of petroleum supply are field production, refinery production, imports, and net receipts when calculated on a PAD District basis.
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Surfactant
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Any compound that reduces the surface tension between two liquids or between a liquid and a solid when it is dissolved into the liquid. Surfactants can be wetting agents, emulsifiers, or detergents.
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Synfuid® PAO
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The registered trademark used for Chevron Phillips Chemical’s PAO product line.
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