One of the major challenges in the oil and gas processing industry is to strike a balance among handling the changing qualities of petroleum products and byproducts, increasing the productivity and service life of critical components and reducing environmental hazards. As an example, new refineries are moving to applying conversion methods, such as hydrocracking, to increase yields, while also utilizing conventional distillation. This juxtaposition translates into a higher Nelson Index rating. Greater refinery complexity makes processing low-quality crude oil difficult, if not impossible, thereby precluding bottom-of-the-barrel products.
For corrosion risk assessment and control, ample published research exists on the inherent corrosivity of combinations of naphthenic acid and sulfur in refining systems, but not on the chemistry and mechanism of corrosion inhibitors. This work offers refinery engineers insight into the construction of corrosion inhibitor molecules, as well as how differences in molecules impact the performance of the inhibitor and the risk of fouling in crude units and hydroprocessing units.
Preventing corrosion begins with the choice of materials and methods used to fabricate the equipment, piping, valves and instruments that will be exposed to varying process conditions and weather. At present, designers and fabricators can select from a multitude of modern materials and methods. Once in service, effective asset integrity programs will use smart condition monitoring and, where needed, a treatment regime to sustain the useful working life of all components. In the Special Focus section of this issue, we provide several articles that illustrate good practices in vessel fabrication, corrosivity analysis and corrosion prevention treatment.
Many refiners look at discounted opportunity crudes as a way to improve their margin spread. The growing varieties of discounted opportunity crudes on the market contain certain risks for the purchaser, such as high naphthenic acid or sulfur content.
ALBANY, N.Y. -- XOS announced the release of Sindie +Cl, a sulfur and chlorine analyzer that delivers two critical measurements with one push of a button. It is the ideal for refineries and independent labs to certify sulfur levels in finished products and assess chlorine for corrosion mitigation.
Many diesel fuel additive companies in North America supply different additive products formulated for diesel-powered equipment.
Emerson has agreed to acquire UK-based Permasense Ltd., a provider of non-intrusive corrosion monitoring technologies for heavy industries, including refining, chemical, and pipelines.
US Water has been selected as a finalist by the R&D 100 Award Program for PhosZero, its unique antiscalant and corrosion inhibitor, cooling water chemistry.
Wika’s PG43SA-D diaphragm pressure gauge is unique in featuring an integrated diaphragm monitoring and eliminates the risk of an undetected diaphragm rupture.