Oil Refining

PETROLEUM REFINING

PROTECTION AND RELIABLE PROCESSES

industrial filters are critical for process efficiency. They meticulously remove contaminants like particulates and impurities from crude oil and feedstocks. This protects expensive downstream equipment—heat exchangers, pumps, catalytic converters—from fouling and wear, common causes of operational disruption.

By ensuring product purity, advanced UNITE filtration systems enhance quality and help refiners meet stringent specifications. This precision is vital for subsequent refining stages and overall product marketability.Preventing unscheduled shutdowns and reducing downtime, these robust UNITE systems optimize continuous output. Effective UNITE filtration significantly bolsters safety, extends asset lifespan, and ensures the economic viability of refining operations.

Typical Applications

Petroleum refining is the process of converting crude oil into gasoline, diesel fuel, jet fuel, and chemical raw materials. Because crude oil itself contains sand, metal salts, and coke and catalyst powders produced during processing, filtration technology directly determines the safety of the plant's operations, the lifespan of the equipment, and the purity of the products.

Catalytic Cracking of Crude Oil, Gasoline, Diesel And Fuel Oils

Oil Storage, Transfer And Terminal Operations

Oilfield Water Injection Filtration Unit

Completion Fluid and Drilling Water Filtration Unit

Oily Wastewater Treatment Processes

Flow of raw materials and intermediate oil products （Hydrocarbon Processing）

The refining feedstock commonly contains fine coke powder, rustintroduced from upstream processes, and sand and silt inherent in thecrude oil. Because the hydrotreating reactor is filled with extremelyexpensive catalysts, these solid impurities easily adhere to the surface ofthe catalyst particles, forming a "fouling layer," which leads to a sharpincrease in system pressure drop.Industrial filters effectively prevent catalyst "poisoning" or bed cloggingby intercepting these micron-sized impurities under high-pressureconditions. This extends the continuous operating cycle of theequipment (from shutdown for cleaning to the next startup) from a fewmonths to several years, directly saving significant economic lossescaused by production downtime.

Gas and solvent circulation flow direction （Gas & Solvent Treatment）

During the repeated cycling of the amine solution to absorb hydrogensulfide, degradation products (thermally stable salts) are produced, andsolid particles from the system are absorbed. These impuritiessignificantly alter the surface tension of the amine solution, leading tosevere foaming, causing substantial loss of solvent with the gas, andreducing the efficiency of heat exchangers due to scaling.

The combination of mechanical filtration and activated carbonadsorption effectively removes solid and organic impurities from theamine solution. This not only ensures stable desulfurization efficiencyand avoidsenvironmental compliance risks, but also significantly reducesthe cost of replenishing chemical solvents.

Gas and solvent circulation flow direction （Gas & Solvent Treatment）

Refining and storage of refined petroleum products (Product Finishing)

Petroleum products inevitably become contaminated with free water oremulsified water during processing and pipeline transportation. This is particularly critical for aviation kerosene; if the water content exceeds the limit, it can freeze in the low-temperature, high-altitude environment, threatening flight safety. Industrial filters (especially coalescing separators) utilize special media to capture tiny water droplets and coalesce them into larger droplets, achieving efficient oil-water separation.

It ensures the "clarity and transparency" of the finished oil products and extremely high cleanliness standards (meeting NAS or ISO specifications), preventing product rejection due to excessive moisture or impurities, and directly safeguarding the refinery's brand reputation and market competitiveness.

Refining and storage of refined petroleum products (Product Finishing)

Success Stories

AVIC Project: Aviation Fuel Transfer and High-Precision Coalescing Separation System

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