Gas pretreatment device
A technology of gas pretreatment and gas export, which is applied in the direction of gas fuel, dispersed particle filtration, petroleum industry, etc., can solve the problems of high operating cost, high investment, and high equipment and personnel requirements, and achieve low cost, low investment, and equipment personnel requirements low effect
Inactive Publication Date: 2015-01-14
JEREH OIL & GAS ENG
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Problems solved by technology
Not only is the requirement for equipment and personnel high, but it is also limited to the case of a single gas well with a large volume. For the treatment of remote scattered gas wells, there will inevitably be problems of high investment and high operating costs.
Method used
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Embodiment 1
[0062] Install the gas pretreatment device according to the method of the present invention. In this embodiment, the height of the molecular sieve dehydration tower is 3.6m, the bottom plate and the support frame are I-beams, the height is 3.0m, the width is 2.5m, and the length is 5m, 6 molecular sieve dehydration towers are connected in series.
[0063] The gas to be treated is passed through a throttle valve to adjust the temperature; the temperature is adjusted to the hydrate formation point of the working condition. The temperature-adjusted gas is passed into the gas-liquid separator to obtain liquid water and the first dry gas after gas-liquid separation; the first dry gas is passed through the gas-liquid separator outlet gas from top to bottom into 6 series molecular sieves The dehydration tower obtains the second dry gas; the second dryer is passed through the dust filter to filter to obtain the treated gas. It is determined that the water content of the product gas of t...
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The invention provides a gas pretreatment device. The gas pretreatment device comprises a movable support part, a gas-liquid separator, a molecular sieve dehydrating tower and a dust filter, wherein the movable support part comprises a base plate and a support rack which is fixed on the base plate; the gas-liquid separator is arranged on the base plate, a throttling valve is arranged on a gas inlet pipeline of the gas-liquid separator; the molecular sieve dehydrating tower is connected with a gas outlet of the gas-liquid separator and is detachably mounted on the support rack; the dust filter is connected with a gas outlet of the molecular sieve dehydrating tower and is detachably mounted on the support rack. According to the gas pretreatment device; the temperature and the pressure of the gas are adjusted by the throttling valve, so that the gas and the liquid are separated for the first time; the gas is further dehydrated by the molecular sieve dehydrating tower; the dry gas is separated; the dust possibly carried in the dry gas is filtered by the dust filter; the pretreatment is completed.
Description
Technical field [0001] The invention relates to the technical field of natural gas dehydration, in particular to a gas pretreatment device. Background technique [0002] In natural gas development, the process of removing water from natural gas is called natural gas dehydration. Almost all natural gas flowing out of the wellhead is saturated with gas phase water, and even carries a certain amount of liquid water. The presence of moisture in natural gas often has serious consequences: it contains CO 2 And H 2 S natural gas forms acid in the presence of water and corrodes pipelines and equipment; under certain conditions, it forms natural gas hydrates and blocks valves, pipelines and equipment; reduces pipeline transportation capacity and causes unnecessary power consumption. The presence of moisture in natural gas is a very unfavorable thing, therefore, the requirement for dehydration is more stringent. [0003] The methods of natural gas dehydration generally include cryogenic me...
Claims
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Login to View More IPC IPC(8): B01D53/26B01D46/00C10L3/10
Inventor 林辉冉华松
Owner JEREH OIL & GAS ENG