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De-heavy hydrocarbon apparatus and process for gas dehydration

A process method and technology for removing heavy hydrocarbons, which are applied in the petroleum industry, gas fuel, fuel and other directions to achieve the effect of saving construction period, facilitating transportation and installation, and saving heat.

Inactive Publication Date: 2009-08-19
XIAN CHANGQING TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • De-heavy hydrocarbon apparatus and process for gas dehydration

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[0029] Component molar composition Component molar composition Component molar composition C 1 91.934 iC 5 0.094 c 9 0.012 C 2 4.96 c 5 0.046 c 10 0.005 C 3 0.948 c 6 0.11 C 11+ 0.003 iC 4 0.172 c 7 0.104 CO 2 0.701 c 4 0.165 c 8 0.024 N 2 0.722

[0030] The water in it is saturated water.

Embodiment 1

[0032] ① The amount of activated alumina is 10 times the mass of the maximum saturated water in the gas;

[0033] ②13X molecular sieve, the dosage is 10 times of the total mass of C6~C8 heavy hydrocarbons and CO2 to be removed;

[0034] ③B-type silica gel, the specific surface area is about 420-500m2 2 / g, the average pore size is 3.5nm, and the particle size is 40 mesh; the dosage is 20 times of the total mass to be removed ≥C8+;

[0035] ④Mesoporous coal-based activated carbon AFX-II, the dosage is 20 times of the total mass of ≥C11+ to be removed.

Embodiment 2

[0037] ① The amount of activated alumina is 11 times the mass of the maximum saturated water in the gas;

[0038]②13X molecular sieve, the dosage is 12 times of the total mass of C6~C8 heavy hydrocarbons and CO2 to be removed;

[0039] ③B-type silica gel, the specific surface area is about 420-500m2 2 / g, the average pore size is 3.5nm, and the particle size is 40 mesh; the dosage is 25 times of the total mass to be removed ≥C8+;

[0040] ④Mesoporous coal-based activated carbon AFX-II, the dosage is 25 times the total mass of ≥C11+ to be removed.

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Abstract

The invention relates to a technique for removing water vapor and heavy hydrocarbon by using natural gas, in particular to a device for removing water vapor and heavy hydrocarbon by using the natural gas in the places such as a natural gas collecting and transmitting station, an individual well mouth, associated gas treatment station extending to oil field or the like without a large scale centralized purifying treatment station, and the technique thereof. The invention is characterized in that the natural gas can be used for completing the technique for removing water vapor and heavy hydrocarbon through alternate circulation process of adsorption and resolution by the device for removing water vapor and heavy hydrocarbon. The technique simplifies the process, saves the investment, land occupation and cost, leads the water and the heavy hydrocarbon being above C6 to be removed while the natural gas or associated gas is concentrated and transmitted, and ensures the dew points of the water and hydrocarbon to reach the level being the same as low temperature process.

Description

technical field [0001] The invention relates to a process for dehydrating steam and heavy hydrocarbons from natural gas. Especially when there is no large-scale centralized purification treatment station built, natural gas dehydration and deheavy hydrocarbon devices and process methods are used in natural gas gathering and transportation stations, single well wellheads, or extended to oilfield associated gas treatment stations. Background technique [0002] When there is no large-scale centralized purification treatment station, in the natural gas gathering and transportation station, single well wellhead or extending to the associated gas treatment station in the oil field, etc., when the natural gas in the Sulige gas field mentioned in the present invention is extracted from the formation, it contains saturated Water, during the gathering and transportation process, as the temperature drops, the water will precipitate from the natural gas, forming liquid water, ice and nat...

Claims

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Application Information

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IPC IPC(8): C10L3/10
Inventor 白俊生冯凯生徐伟王登海杨光刘祎郄海霞王铁
Owner XIAN CHANGQING TECH ENG
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