Oil gas treatment system

Abstract

The utility model belongs to the technical field of environmental protection, and relates to an oil gas treatment system which comprises a booster fan, an adsorption tank, an absorption tower, a direct-fired incinerator, a vacuum pump, a crude oil pump and an oil-rich pump, the booster fan is connected with a bottom port of the adsorption tank through a pipeline, and a top port of the adsorption tank is connected with the direct-fired incinerator through a pipeline; a bottom port of the adsorption tank is connected with a vacuum pump and a middle gas inlet of the absorption tower through pipelines; the crude oil pump is connected with an upper inlet of the absorption tower through a pipeline, the rich oil pump is connected with a bottom outlet of the absorption tower through a pipeline, and a top outlet of the absorption tower is connected with an inlet of the booster fan through a pipeline. Adsorption and absorption are coupled with the direct-fired incinerator, so that the device is more stable, safer and more efficient, part of organic matters can be recycled, the thermal load of the direct-fired incinerator can be reduced, investment is reduced, certain economic benefits are achieved, and the oil gas concentration application range of the oil gas treatment device is expanded while the economic benefits are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to environmental protection technical field, especially relate to an oil gas treatment system. BACKGROUND

[0002] Among 12 VOCs key industries which the country pays close attention to, most are related to petroleum and its products, among them, oil gas is one of VOCs gas, belongs to typical volatile organic compounds, and the emission of oil gas not only causes resource waste, but also brings safety hidden danger and environmental harm, therefore, the management of oil gas is the key field of VOCs management.

[0003] With increasingly strict environmental protection requirements, the globalization of oil gas pollution control range and more refined control indicators, and the supervision of the effectiveness of oil gas recovery equipment, oil gas recovery technology is facing new challenges. UTILITY MODEL CONTENT

[0004] The utility model discloses an oil gas treatment system to solve the above technical problem.

[0005] The utility model adopts the technical scheme as follows:

[0006] An oil gas treatment system, comprising a booster fan, an adsorption tank, an absorption tower, a direct combustion incinerator, a vacuum pump, a crude oil pump and a rich oil pump.

[0007] The bottom filling opening of the adsorption tank is connected to the booster fan through a pipeline, and the top filling opening of the adsorption tank is connected to the direct combustion incinerator through a pipeline. The bottom filling opening of the adsorption tank is connected to the vacuum pump and the middle gas inlet of the absorption tower through a pipeline. The upper inlet of the absorption tower is connected to the crude oil pump through a pipeline, the bottom outlet of the absorption tower is connected to the rich oil pump through a pipeline, and the top outlet of the absorption tower is connected to the inlet of the booster fan through a pipeline.

[0008] The oil gas treatment system of the utility model is an adsorption and absorption coupled direct combustion incinerator oil gas treatment system that realizes ultra-low emission, and is suitable for a wide range of oil gas concentrations.

[0009] Oil and gas are pressurized and transported to the adsorption tank by a booster fan. After adsorption by the adsorbent in the adsorption tank, the oil and gas enter the direct-fired incinerator. Using the adsorption tank as a pretreatment device for the direct-fired incinerator can reduce the heat load of the incinerator, thereby reducing equipment investment. It can also partially recover organic matter, achieving the effect of resource recovery. When treating high-concentration oil and gas, the adsorption tank can reduce the concentration of oil and gas, ensuring the safe and reliable operation of the direct-fired incinerator. The organic matter in the oil and gas is fully oxidized and decomposed in the direct-fired incinerator, and then discharged in compliance with standards. The direct-fired incinerator has high combustible material treatment efficiency, strong adaptability to combustible material concentration, high volatile organic compound removal rate, low nitrogen oxide emission rate, achieving ultra-low emissions, and has a small footprint, short start-up time, and does not require high-temperature standby or preheating. The regeneration of the adsorbent in the adsorption tank adopts the principle of vacuum decompression desorption. The pressure inside the adsorption tank is brought to a high vacuum state by a vacuum pump, so that the organic matter adsorbed in the adsorbent is in a state that is easy to detach from the adsorbent, ensuring the adsorbent can be recycled. The high-concentration oil and gas desorbed enters the absorption tower for absorption treatment, achieving the effect of oil and gas recovery.

[0010] Furthermore, the oil and gas processing system also includes a combustion fan, which is connected to the direct-fired incinerator.

[0011] Furthermore, at least two adsorption tanks are provided and connected in parallel, so that adsorption and desorption can be carried out alternately and continuously, thereby improving efficiency.

[0012] Furthermore, the adsorbent in the adsorption tank is activated carbon.

[0013] Furthermore, the absorbent in the absorption tower is crude oil, achieving the effect of recovering organic matter.

[0014] Furthermore, the direct-fired incinerator uses a metal fiber burner, which can achieve a volatile organic compound removal rate of over 99% and a low nitrogen oxide emission rate, thus achieving ultra-low emissions.

[0015] Furthermore, a spraying device is installed at the top of the absorption tower.

[0016] The beneficial effects of this utility model are:

[0017] The oil and gas treatment system of this invention couples adsorption and absorption with a direct-fired incinerator to treat oil and gas in a more stable, safe, and efficient manner. It can not only recover some organic matter, but also reduce the heat load of the direct-fired incinerator, reduce investment, and has certain economic benefits. Furthermore, while improving economic benefits, it expands the range of oil and gas concentrations that the oil and gas treatment device can adapt to. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an oil and gas treatment system according to an embodiment of the present invention.

[0019] Marked in the figure:

[0020] 1, adsorption tank, 2, absorption tower, 3, direct-fired incinerator, 4, booster fan, 5, vacuum pump, 6, crude oil pump, 7, rich oil pump, 8, combustion fan. DETAILED DESCRIPTION

[0021] In order to better understand the purpose, structure and function of the utility model, the utility model will be described in further detail below in conjunction with the drawings.

[0022] Embodiment:

[0023] As Figure 1 shown, the utility model provides an oil and gas treatment system, including booster fan 4, two adsorption tanks 1, absorption tower 2, direct-fired incinerator 3, vacuum pump 5, crude oil pump 6, rich oil pump 7, combustion fan 8. Booster fan 4 is connected through the pipeline two bottom filling mouth of adsorption tank 1, two adsorption tanks 1 are connected in parallel, and the top filling mouth of two adsorption tanks 1 is connected through the pipeline absorption tower 2, combustion fan 8 is connected with direct-fired incinerator 3. The bottom filling mouth of adsorption tank 1 is connected through the pipeline vacuum pump 5 and the middle gas inlet of absorption tower 2. Crude oil pump 6 is connected through the pipeline upper inlet of absorption tower 2, and rich oil pump 7 is connected through the pipeline bottom outlet of absorption tower 2. The top outlet of absorption tower 2 is connected through the pipeline booster fan 4 inlet.

[0024] Among them, the adsorbent of adsorption tank 1 is activated carbon, the upper part of absorption tower 2 is provided with a spraying device, the spraying device used is prior art, which will not be repeated here, the absorbent of absorption tower 2 is crude oil, which achieves the effect of recovering organic matter and produces rich oil. Direct-fired incinerator 3 adopts metal fiber burner.

[0025] In use, oil gas is delivered to one of the adsorption tanks 1 by the booster fan 4, and part of the organic matter in the oil gas is adsorbed by the activated carbon in the adsorption tank 1 and enters the direct combustion incinerator 3, the adsorption tank 1 is used as a pretreatment device of the direct combustion incinerator 3, which can reduce the heat load of the direct combustion incinerator 3, thereby reducing equipment investment, and can partially recover organic matter, achieving the effect of resource recovery; for example, when high-concentration oil gas is treated, the adsorption tank 1 can reduce the concentration of the oil gas to ensure that the direct combustion incinerator 3 operates safely and reliably; the organic matter in the oil gas is fully oxidized and decomposed in the direct combustion incinerator 3, and then is discharged up to standard; the direct combustion incinerator 3 has high combustible material treatment efficiency, strong adaptability to combustible material concentration, high volatile organic matter removal rate, and low nitrogen oxide emission rate, achieves ultra-low emission, has small occupied area, short start-up time, and does not need high-temperature standby or preheating. The regeneration of the adsorbent of the adsorption tank 1 uses the principle of vacuum pressure desorption, the pressure in the adsorption tank 1 reaches a high vacuum state through the vacuum pump 5, and the organic matter adsorbed in the adsorbent reaches a state easy to fall off from the adsorbent, thereby ensuring the cyclic use of the adsorbent. Two parallel adsorption tanks 1 are used, adsorption and desorption can be alternately and continuously performed, and the efficiency is improved. The high-concentration oil gas desorbed enters the absorption tower 2 for absorption treatment, the high-concentration oil gas enters the absorption tower 2 from the upper inlet of the absorption tower 2 and moves from bottom to top, passes through the filler layer, and at the same time, the crude oil from the boundary area is sent to the upper spraying device of the absorption tower 2 and flows downward through the filler, so that the organic matter is continuously dissolved and absorbed in the crude oil, the oil gas after absorption returns to the inlet of the booster fan 4 for re-adsorption and treatment by the direct combustion incinerator 3, and the effect of oil gas recovery and ultra-low emission is achieved.

[0026] The oil gas treatment system of the utility model couples adsorption and absorption with the direct combustion incinerator 3 to treat oil gas more stably, safely and efficiently, can not only recover part of the organic matter, but also reduce the heat load of the direct combustion incinerator 3, reduce investment, has certain economic benefits, and expands the oil gas concentration adaptability range of the oil gas treatment device while improving economic benefits.

[0027] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, these features and embodiments can be modified to adapt to specific conditions and materials under the guidance of the utility model without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. An oil and gas processing system, characterized in that, This includes booster fans, adsorption tanks, absorption towers, direct-fired incinerators, vacuum pumps, crude oil pumps, and rich oil pumps; The booster fan is connected to the bottom inlet of the adsorption tank via a pipeline, and the top inlet of the adsorption tank is connected to the direct-fired incinerator via a pipeline; the bottom inlet of the adsorption tank is connected to the vacuum pump and the middle air inlet of the absorption tower via a pipeline; the crude oil pump is connected to the upper inlet of the absorption tower via a pipeline, the rich oil pump is connected to the bottom outlet of the absorption tower via a pipeline, and the top outlet of the absorption tower is connected to the inlet of the booster fan via a pipeline.

2. The oil and gas processing system according to claim 1, characterized in that, The oil and gas processing system also includes a combustion fan, which is connected to the direct-fired incinerator.

3. The oil and gas processing system according to claim 1, characterized in that, At least two adsorption tanks are provided and connected in parallel.

4. The oil and gas processing system according to claim 1, characterized in that, The adsorbent in the adsorption tank is activated carbon.

5. The oil and gas processing system according to claim 1, characterized in that, The absorbent in the absorption tower is crude oil.

6. The oil and gas processing system according to claim 1, characterized in that, The direct-fired incinerator uses a metal fiber burner.

7. The oil and gas processing system according to claim 1, characterized in that, A spraying device is installed at the top of the absorption tower.

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