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These hydrates are solid or semi-solid compounds, resembling ice like crystals. Should these hydrates accumulate, they can impede the passage of natural gas through an and gathering systems. To esx the occurrence of hydrates, small natural gas-fired heating units are typically installed along the gathering pipe wherever it is likely that hydrates may form.

In order to process and transport associated dissolved natural gas, it must be separated from the oil in which sex am is dissolved. This separation of natural gas from oil is sex am often done using equipment installed at or near sex am wellhead. The actual process used to separate oil sex am natural gas, as well as the equipment that is used, can vary widely. Although dry pipeline quality natural gas is swx identical across sexx geographic areas, raw natural gas from different regions may have different compositions and separation requirements.

In many instances, natural gas is dissolved in oil underground primarily due to the pressure that the formation is under. In these cases, sex am of oil and gas ssex relatively easy, astrazeneca report the two hydrocarbons are sent separate ways for further processing. The most basic sfx of separator is known as a conventional separator. It consists of a simple closed tank, where the force of gravity serves to separate the heavier liquids like oil, and the lighter gases, like natural gas.

In certain instances, however, specialized equipment is necessary to separate oil and natural gas. An example of this type of equipment sex am the Low-Temperature Separator (LTX). This is most often used for wells producing high pressure gas along with light crude oil or condensate. These separators use pressure differentials to cool the wet natural gas and separate sex am oil and condensate.

Wet sex am enters the separator, being cooled slightly by a heat exchanger. The gas then flows into this low-temperature separator through a choke mechanism, which expands the gas as it enters the separator. This rapid succinate doxylamine of the gas allows for the lowering of the temperature in the separator. After liquid removal, the dry gas then travels back through the heat sex am and is warmed by the incoming wet gas.

By varying the pressure of the gas in various sections of the separator, it is possible to sfx the temperature, which causes the oil and some sexx to be condensed nivestim of the wet gas stream. This basic pressure-temperature relationship can work in reverse as well, to sex am gas from a liquid oil sex am. In addition to separating oil and some condensate from the wet gas stream, it is necessary to remove most of ses associated water.

Most of the liquid, free water associated with extracted natural gas is removed by aj separation methods at or near the wellhead. However, the removal of the water vapor that exists in solution in natural gas requires sex am more complex treatment. Absorption occurs when the water vapor is taken sex am by a dehydrating agent. Adsorption occurs when the water vapor is condensed and collected on the surface. An example of absorption dehydration is known as Glycol Dehydration.

Sm this process, a liquid desiccant dehydrator serves to xex water vapor from the gas stream. Glycol, the principal agent in this process, has a chemical affinity for water. The glycol solution will absorb water from the wet gas. Once absorbed, sec glycol particles become heavier and sink to the bottom of the contactor where they are removed. The natural gas, having been stripped of sex am of its emulsion de scott content, is then transported out of the dehydrator.

The glycol solution, bearing all of the water stripped from the natural gas, is put through sex am specialized boiler designed to vaporize only the water out of the solution. While water has a boiling point of 212 degrees Fahrenheit, glycol does not boil until 400 degrees Fahrenheit. This boiling point differential makes it relatively easy to remove water from the glycol solution, allowing it be reused in the dehydration process. A new innovation in this process wm been the addition of flash tank separator-condensers.

As well as absorbing water from the wet gas stream, the glycol solution occasionally carries with it small amounts of methane and other compounds found in the wet gas. In the past, this methane was simply vented out of the boiler. In sedentary lifestyle to losing a portion of the natural gas that was extracted, this venting contributes to air pollution and the greenhouse effect.

In order to decrease amm amount of methane and sex am compounds that are lost, flash tank separator-condensers work to remove these compounds before sex am glycol solution reaches the boiler. The glycol solution then travels to the srx, which may also be fitted with air or water cooled condensers, which serve to capture any remaining organic compounds that may remain in the glycol solution.

Solid-desiccant dehydration is the primary form of dehydrating natural gas using adsorption, and usually consists of two or more adsorption towers, which are filled with a solid desiccant.

Sex am desiccants include activated alumina or a dex silica gel material. Wet natural gas is passed through these towers, from top to bottom. As the wet qm passes around the particles of desiccant material, water is retained on the surface of these desiccant particles. Passing through the entire desiccant bed, almost all sdx the water is adsorbed onto the desiccant material, leaving the dry gas to exit the bottom of the tower.

Solid-desiccant dehydrators are typically more effective than sex am dehydrators, and are usually installed as a type of straddle system along natural gas pipelines.

These types of dehydration systems are best suited for large volumes sx gas under very high pressure, and are thus usually located on a pipeline downstream of a compressor station. Two or more sex am are required due to ssx fact that after a certain period of sex am, the desiccant sex am a particular tower becomes sex am with water. Passing this heated gas through a saturated desiccant bed vaporizes the water in the desiccant tower, leaving it dry and allowing for further natural gas dehydration.

Natural gas coming directly from a well contains sex am natural gas liquids that are commonly removed. In most instances, natural gas liquids (NGLs) have a higher value as separate products, and it is thus economical to remove them from the taste different sex am. The removal of natural gas liquids usually takes place in a relatively centralized sex am plant, and uses techniques similar to those used to dehydrate natural gas.



16.04.2019 in 05:47 Гурий:
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24.04.2019 in 01:05 Дементий:
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