Oil-gas recycling system and oil-gas recycling process

Abstract

The invention relates to an oil-gas recycling system and an oil-gas recycling process. The system comprises a gas-liquid separation device, an absorption intake separation device, an intake separation device and a storage device. The storage device is connected with the gas-liquid separation device and the intake separation device respectively. The gas-liquid separation device is connected with the intake separation device which is connected with the absorption intake separation device. The absorption intake separation device is above first stage. The intake separation device is also above first stage. By the oil-gas recycling system, combination of multiple separation techniques is achieved, the recycling process by combining multistage intake and absorption intake is achieved, hydrocarbon components in oil and gas can be recycled completely and thoroughly, and energy waste is avoided. The oil-gas recycling system is evident in environment protection effect, low in economic cost, convenient and safe to operate, and suitable for popularization and application in related hydrocarbon-contained oil-gas recycling fields.

Description

technical field

[0001] The invention relates to the technical field of oil and gas treatment, in particular to an oil and gas recovery and treatment system and a recovery and treatment process thereof. Background technique

[0002] At present, during the exploitation, processing and application of crude oil and other oil products, it is often accompanied by a large amount of oil energy waste and environmental pollution caused by oil gas discharge or incineration, and seriously affects the health and life of relevant people. Therefore, it is urgent It is necessary to research and develop technologies that can effectively recover these oil gases.

[0003] In the prior art, the invention patent ZL200710012088.9 relates to a method of oil and gas recovery, which adopts the oil and gas recovery process of cooling-condensation-adsorption-vacuum regeneration-regeneration gas cycle, and the cooling medium used in the cooling step is condensed oil and gas. This invention makes the s...

Examples

Embodiment 1

[0048] Such as figure 1 As shown, the oil and gas recovery treatment system of the present invention includes an oil and gas input system 1, a gas-liquid separation device 2, an adsorption absorption separation device, an absorption separation device and a storage device; the storage device is connected to the gas-liquid separation device and the absorption separation device respectively connected; the gas-liquid separation device is connected with the absorption separation device; the absorption separation device is connected with the adsorption absorption separation device; wherein:

[0049] The absorption separation device is a two-stage absorption separation device, including a first-stage absorption separation device and a second-stage absorption separation device connected to each other; between the first-stage absorption and separation device and the second-stage absorption separation device is set Evaporation and separation device; the first-stage absorption and separa...

Embodiment 2

[0077] Such as figure 1 As shown, the setting and distribution of an oil and gas recovery treatment system are the same as in Embodiment 1.

[0078] Applying the oil gas recovery treatment system of the present invention to carry out crude oil gas recovery treatment process is the same as embodiment 1, except the following steps:

[0079] In step (3), the concentration of the effluent is measured to reach 25g / m by analyzing the online concentration analyzer 3 , alternately replace the first adsorption tower 13 and / or the second adsorption tower 14 for adsorption; the specific surface of the adsorbent activated carbon is 260,000m 2 / kg;

[0080] Applying the present invention to recover crude oil and gas, the concentration of hydrocarbons in the finally obtained purified gas is 20g / m 3 , The overall recovery rate of oil and gas reaches 98%.

Embodiment 3

[0082] Such as figure 1 As shown, the setting and distribution of an oil and gas recovery treatment system are the same as in Embodiment 1.

[0083] Applying the oil gas recovery treatment system of the present invention to carry out crude oil gas recovery treatment process is the same as embodiment 1, except the following steps:

[0084] In step (3), the concentration of the effluent is measured to reach 30g / m by analyzing the online concentration analyzer 3 , alternately replace the first adsorption tower 13 and / or the second adsorption tower 14 for adsorption; the specific surface of the adsorbent activated carbon is 160,000m 2 / kg;

[0085] Applying the present invention to recover crude oil and gas, the concentration of hydrocarbons in the finally obtained purified gas is 18g / m 3 , The overall recovery rate of oil and gas reaches 97%.

technical field

[0001] The invention relates to the technical field of oil and gas treatment, in particular to an oil and gas recovery and treatment system and a recovery and treatment process thereof. Background technique

[0002] At present, during the exploitation, processing and application of crude oil and other oil products, it is often accompanied by a large amount of oil energy waste and environmental pollution caused by oil gas discharge or incineration, and seriously affects the health and life of relevant people. Therefore, it is urgent It is necessary to research and develop technologies that can effectively recover these oil gases.

[0003] In the prior art, the invention patent ZL200710012088.9 relates to a method of oil and gas recovery, which adopts the oil and gas recovery process of cooling-condensation-adsorption-vacuum regeneration-regeneration gas cycle, and the cooling medium used in the cooling step is condensed oil and gas. This invention makes the s...

Examples

Embodiment 1

[0048] Such as figure 1 As shown, the oil and gas recovery treatment system of the present invention includes an oil and gas input system 1, a gas-liquid separation device 2, an adsorption absorption separation device, an absorption separation device and a storage device; the storage device is connected to the gas-liquid separation device and the absorption separation device respectively connected; the gas-liquid separation device is connected with the absorption separation device; the absorption separation device is connected with the adsorption absorption separation device; wherein:

[0049] The absorption separation device is a two-stage absorption separation device, including a first-stage absorption separation device and a second-stage absorption separation device connected to each other; between the first-stage absorption and separation device and the second-stage absorption separation device is set Evaporation and separation device; the first-stage absorption and separa...

Embodiment 2

[0077] Such as figure 1 As shown, the setting and distribution of an oil and gas recovery treatment system are the same as in Embodiment 1.

[0078] Applying the oil gas recovery treatment system of the present invention to carry out crude oil gas recovery treatment process is the same as embodiment 1, except the following steps:

[0079] In step (3), the concentration of the effluent is measured to reach 25g / m by analyzing the online concentration analyzer 3 , alternately replace the first adsorption tower 13 and / or the second adsorption tower 14 for adsorption; the specific surface of the adsorbent activated carbon is 260,000m 2 / kg;

[0080] Applying the present invention to recover crude oil and gas, the concentration of hydrocarbons in the finally obtained purified gas is 20g / m 3 , The overall recovery rate of oil and gas reaches 98%.

Embodiment 3

[0082] Such as figure 1 As shown, the setting and distribution of an oil and gas recovery treatment system are the same as in Embodiment 1.

[0083] Applying the oil gas recovery treatment system of the present invention to carry out crude oil gas recovery treatment process is the same as embodiment 1, except the following steps:

[0084] In step (3), the concentration of the effluent is measured to reach 30g / m by analyzing the online concentration analyzer 3 , alternately replace the first adsorption tower 13 and / or the second adsorption tower 14 for adsorption; the specific surface of the adsorbent activated carbon is 160,000m 2 / kg;

[0085] Applying the present invention to recover crude oil and gas, the concentration of hydrocarbons in the finally obtained purified gas is 18g / m 3 , The overall recovery rate of oil and gas reaches 97%.

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