Porex Radial Cartridge Filter
Application: Amine Gas Sweetening
Target Market: Oil and Gas
Application Description Natural gas is contaminated with a variety of materials including water, hydrogen sulfide (H2S) and particulate. To be used efficiently without odor or dangerous chemicals, gas must be treated to remove these contaminants. Amine is a method used to remove the H2S from the gas. By passing the gas through the amine, it removes the H2S and much of the particulate from well dirt to pipe scale. Amine has great capacity for the H2S, which makes its reuse economical. However, the particulate needs to be removed to improve the efficiency of H2S removal and best maintain the amine system.
Material Porous Polyethylene
Types of Filters Used The most common type of filter used in amine gas sweetening applications is the sock-type or tubular depth cartridge (resin bonded or meltblown). The typical configuration is the 336 size.
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Purpose of Filtration The purpose of filtration is to remove particulate from the amine solution to allow efficient reuse.
Common Filtration-Related Problems
- High Amine Usage - Significant amine loss caused during filter change (sock and tubular depth cartridges hold amine at high capacity)
- Particulate Passage - Poor seals or inconsistent media porosity
- Short Filter Life - Low surface area filters
- Low Flow Rate - Low surface area
- High Disposal Cost - Low capacity filters without backflush capability
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FEATURE | ADVANTAGE | BENEFIT |
Rigid, Omni-Directional Pore Structure |
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- Consistent pore structure minimizes performance changes caused by differential pressure
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- Narrow Pore Size Distribution
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- Highly-effective surface filtration for particles larger than the filter pore size rating
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- Allows for effective cleaning, backwash and reuse
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- Sintered omni-directional pore structure
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- No media migration, bypass or unloading from 5 to 100 microns
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- Excellent Chemical and Thermal Compatibility
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- High chemical resistance of HDPE and UHMWPE
- Completely incineratable with a high BTU output
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- No chemical degradation resulting in bypass or contamination of the process fluid
- No incineration residue
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Unique, Molded Radial Design |
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- Low pressure drop and higher flow rate
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- Increased life or fewer filters results in lower filtration costs
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- Easy access to filtration area
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- Effective filtration and cleaning
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- Single-Layer Structural Media
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- Eliminates unnecessary support materials
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- Improves backwash and cleanability
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- Rigid, One-Piece Construction
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- Multiple diameters, lengths and end configurations
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- Easily adapts to existing filtration systems
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Rigid, Omni-Directional Pore Structure
POREX Radial Cartridge Filter vs | Sock Cartridges | Depth Cartridges | Pleated Cartridges |
Micron Rating |
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=/- |
=/- |
Absolute Filtration |
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=/+ |
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Surface Retention |
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=/+ |
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Classification Filtration |
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=/+ |
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Sintered Process |
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Polyolefin Material |
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Chemical Compatibility |
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Thermal Compatibility |
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Unique, Molded Radial Design
POREX Radial Cartridge Filter vs | Sock Cartridges | Depth Cartridges | Pleated Cartridges |
Backflushable |
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+ |
+ |
Surface Area |
+ |
+ |
- |
Molded Construction |
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+ |
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Rigid Structure |
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=/+ |
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Open Pleats |
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+ |
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Disposal Cost |
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Performance Priced |
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+ |
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Single Material |
+ |
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=/+ |
Vessel Seal |
+ |
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Housing Fit |
- |
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Symbol Key: = Porex equivalent | + Porex advantage | - Porex potential limitation |