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Surging in a compressor, particularly in centrifugal and axial compressors, refers to a condition where there is an unstable flow of air or gas through the compressor. This phenomenon occurs when the flow rate falls below ...

API Gravity is a measure of how heavy or light a petroleum liquid is compared to water. It is a scale developed by the American Petroleum Institute (API) to quantify the density of crude oil and other liquids. API Gravity ...

Sweet Crude refers to crude oil that has a low sulfur content, typically less than 0.5% by weight. The term “sweet” comes from the oil’s relatively pleasant or neutral odor, in contrast to the pungent and foul smell of sour ...

The RFCC (Residual Fluid Catalytic Cracking) unit is an advanced refining process that upgrades heavy residues from the crude distillation unit (CDU) into more valuable, lighter products like gasoline, diesel, and petrochemical feedstocks. It is a type of fluid catalytic ...