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Aqueous Wastes from Petroleum and Petrochemical Plants is a book about the composition and treatment of the various wastewater streams produced in the hydrocarbon processing industries (i.e., oil refineries, petrochemical plants and natural gas processing plants). When it was published in 1967, it was the first book devoted to that subject.
The pour point (ASTM D97 [12]) measures the temperature at which a base oil no longer flows. For paraffinic base oils, pour points are usually between −12 °C and −15 °C, and are determined by operation of the dewaxing unit. The pour points of naphthenic base oils, generally devoid of wax content, may be much lower (down to <−70 °C). [10]
The factors involved include whether the amine unit is treating raw natural gas or petroleum refinery by-product gases that contain relatively low concentrations of both H 2 S and CO 2 or whether the unit is treating gases with a high percentage of CO 2 such as the offgas from the steam reforming process used in ammonia production or the flue ...
A thinner (less viscous) mineral-oil-based anti-rust product followed by anti-rust wax can be more effective. [according to whom?] Application is easier in hot weather rather than cold because even when pre-heated, the products are viscous and don't flow and penetrate well on cold metal. [citation needed] Aftermarket "underseals" can also be ...
An improvement to the refining process in the 1960s called hydro-treating made this base oil more stable, less reactive, and longer lasting than the earlier base oils. API defines group I as "base stocks contain less than 90 percent saturates and/or greater than 0.03 percent sulfur and have a viscosity index greater than or equal to 80 and less ...
Oilfield scale inhibition is the process of preventing the formation of scale from blocking or hindering fluid flow through pipelines, valves, and pumps used in oil production and processing. Scale inhibitors (SIs) are a class of specialty chemicals that are used to slow or prevent scaling in water systems.
Nitronic (trade name): Nitronic 50 is a fully austenitic grade (super austenitic, low magnetism), even when cold worked. [8] Nitronic 60 is an example of a non-molybdenum grade performing well in seawater, being more resistant to pitting in sea water than 316 due to high levels of Si and N; the N also increases the yield strength. [9]
This may be by heat exchange with the incoming live crude and by cooling water in a heat exchanger. The dead, stabilized crude flows to tanks for storage or to a pipeline for transport to customers such as an oil refinery. [3] [4] [7] The stabilization tower may typically operate at approximately 50 to 200 psig (345 – 1378 kPa). [5]