Application of Double-Layer Sintered Porous Filters in Refineries

Customer Background

A large refinery encountered challenges such as filter element blockage, insufficient flux, and high solid content oil slurry treatment during production, which had a certain impact on equipment operating efficiency and product quality. To improve this situation, the refinery decided to try Boegger filter elements, hoping to achieve better filtration results by replacing Mott filter elements and enhance overall production efficiency.

The customer sent a powder sintered filter after cutting

Customer used sample

A powder sintered filter element with an external threaded joint

Customer used sample

A powder sintered filter element after welding

Customer used sample

Solution

Boegger Company, in conjunction with the customer's existing equipment and filtration needs, recommends its independently developed double-layer sintered porous filter, which has the following technical advantages:

  • Same material overall sintering. The substrate and membrane layer use the same metal material, ensuring consistent material properties and avoiding the material mismatch issues of traditional powder sintered filter elements.
  • High flux design. The substrate pore size is 100-150 μm, which greatly enhances the filtration flux, making it suitable for the treatment of high flow rate and high viscosity oil slurries.
  • Precise separation capability. The membrane layer precision reaches 0.5 μm, enabling thorough surface screening and effectively removing catalyst particles and other solid contaminants.
  • Unique inner membrane structure. When processing fluids with high solid content and high viscosity, the internal filtration design prevents filter cake bridging, ensuring stable filtration performance.
  • Extended service life. Enhanced component strength reduces pressure drop loss, prolongs equipment service life, and lowers replacement frequency and operating costs.
Two packaged double-layer sintered porous filters

Filter element details

Double-layer sintered porous filter's magnified double-layer structure diagram

Magnified double-layer structure

Loading the double-layer sintered porous filter with a forklift

Product loading

Implementation effects

Through the optimization of the application of double-layer sintered porous filters, the refinery has achieved significant results in the oil slurry treatment process:

  • Improved product quality. By precise filtration, the total suspended solids content in the filtrate was reduced to below 100 ppm, ensuring that the oil products meet high-quality standards and enhancing the market competitiveness of the products.
  • Protect downstream equipment. Effectively removes catalyst particles and other solid contaminants from the oil slurry, reducing wear and failure rates of downstream equipment, thereby lowering maintenance costs.
  • Extend equipment lifespan. The inner membrane design reduces pressure drop loss, significantly extending the lifespan of components compared to traditional filter elements, further lowering operating costs.
  • Improve operational efficiency. The application of online backwashing functionality reduces the need for frequent shutdowns for cleaning, ensuring continuous and efficient operation of the equipment.

Customer feedback

The refinery highly praises Boegger Company's filtration technology, believing that the double-layer sintered porous filter not only solves existing technical challenges but also enhances overall operational efficiency and product added value through efficient filtration. This case sets a benchmark for the application of Boegger Company's filtration technology in the heavy oil catalytic slurry sector and provides a reliable reference solution for other refineries.

Installation site of the double-layer sintered porous filter at the refinery

Installation site

Double-layer sintered porous filter is placed in a wooden box ready for installation

Ready for installation

The installed double-layer sintered porous filter is fixed on the disc

Installation completed

Boegger Company, with its self-developed double-layer sintered porous filter, successfully helped refineries solve the problem of catalyst particle residue in heavy oil catalytic slurry, significantly improving product quality and equipment lifespan. This technical solution demonstrates Boegger's innovative strength in the field of filtration technology and its broad application potential in the refining industry.

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