Strainers

 

Strainers are the first step in an integral treatment of natural gas. Their purpose is to filter the natural gas (or any other fluid) and collect larger solids in their filtration element (strainer basket). We have all types available: “Y,” Simplex, Duplex, and Automatics. Connections threaded and flanged (depending on specific sizes), from ½” to 36”. Construction materials: Iron, Carbon Steel, Stainless, Bronze, and others. Cast and fabricated. Filtration levels from ¼” to 1 micron. Durable, replaceable straining elements manufactured in Stainless Steel 316 (other materials available). Designed, tested and manufactured to applicable NACE, ASME and other international certifications and standards. Also temporary cone strainers to your specific dimensions. Provide us with the specifics of your application, and we’ll engineer and offer the best solution: we want to be a part of your project!

Learn more about natural gas strainers.

The Importance of Natural Gas Filtration.


Natural gas (also called fuel gas) is a mix of hydrocarbon gases (the largest component is methane). It’s a fossil fuel and can be found in reservoirs underground, either alone or mixed with crude oil in oilfields. It’s the most widely used combustible in industrial operations. Its use is common in manufacturing processes of all kinds (glass, steel, plastics, fertilizers, etc.). Heating is, of course, another big application for natural gas as a fuel: households all around the world depend on heating systems that burn natural gas. Power generation may be the largest worldwide consumer of natural gas: this fuel for generating energy is preferred above others (such as coal, or diesel fuel) since it burns cleanly and is more friendly with the environment. Natural gas is also generally very safe to handle. However, natural gas in its raw form comes with many liquid and solid contaminants, which must be removed so it can achieve high-efficiency levels: a thorough natural gas treatment process must be applied. And even after cleaning the raw natural gas to industry standards, the operations needed for transportation in pipelines (pumps) may add liquid contaminants that will again need to be removed.


Natural Gas as a Fuel for Power Generation.


Natural gas is preferred over other options because it’s a source of energy cleaner and safer than other fuels. Furthermore, there has been an increase in the known available supply of natural gas, so its prices remain competitive for the power generation industry. More natural gas-fired power plants are in operation (and new being built nowadays) than any other power generation technology. But the impurities that this fuel gas contains in its natural form can severely affect its efficient performance, so they must be removed. Different technologies and processes are available as complete treatment to convert the raw, highly contaminated natural gas in underground reservoirs, to the clean, reliable fuel gas needed for power generation.

The Process of Natural Gas Treatment / Filtration.


In order to turn raw natural gas from its original contaminated state into the fuel gas needed for natural gas-fired power plants to run efficiently, both solid and liquid contaminants must be removed as part of a complete treatment. Here are the primary products and technologies used for his matter:

  • Strainers. Simplex (or duplex) basket strainers are used as the first step for purifying natural gas in the pipeline: remove large solid contaminants. Strainers can be built in several materials, although Carbon Steel is preferred. The filtration element (strainer basket) is usually manufactured in stainless steel, so it’s durable and reusable. A basket strainer can efficiently remove solid contaminants down to 100 microns (smaller particles can be removed with special design straining elements).
  • Separators. These are used to separate large liquid contaminants (hydrocarbon oils, gels, and water) from the natural gas stream in the pipeline. In the separator vessel, the natural gas flow is forced to go through a series of devices (inertial separators, vane packs, mesh pads) that turn the smaller liquid drops into large drops that are precipitated and collected in the bottom of the vessel to be removed later.
  • Coalescer Filter. This is the last stage in the process of cleaning the natural gas. After going through the basket strainers that remove the larger solid particles, and then the separator to collect most of the liquid particles, the natural gas will still contain fine contaminants. Now, the Filter Coalescer will remove solid and liquid particles down to 1micron sizes or less, with efficiencies of over 99.9%.
One Stage of the Natural Gas Filtration/Treatment

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