Desulfurization integrated device capable of accurately controlling injection amount of desulfurizing agent and desulfurization method

A technology of precise control and desulfurization agent, applied in sequence/logic controller program control, electrical program control, gas fuel, etc., can solve the problem of ineffective development and utilization of natural gas production capacity

Pending Publication Date: 2020-07-31
XIAN CHANGQING TECH ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lower ancient sour natural gas cannot enter the external transportation system of the upper ancient gas reservoir, resulting in t

Method used

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  • Desulfurization integrated device capable of accurately controlling injection amount of desulfurizing agent and desulfurization method
  • Desulfurization integrated device capable of accurately controlling injection amount of desulfurizing agent and desulfurization method

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Embodiment 1

[0044] This embodiment provides an integrated desulfurization device for precisely controlling the amount of desulfurization agent injected, including a desulfurization tank 3, a PLC control system, a dosing system 6 and a gas-liquid separator 4 arranged on a skid, and the desulfurization tank 3 The gas outlet communicates with the middle part of the gas-liquid separator 4 through a pipeline;

[0045] Described dosing system 6 comprises dosing pump 29, hydrogen sulfide detector one 27, hydrogen sulfide detector two 28 and flowmeter 5, and described hydrogen sulfide detector one 27 is arranged on the natural gas inlet pipeline of desulfurization tank 3, so The hydrogen sulfide detector II 28 is arranged on the pipeline between the desulfurization tank 3 and the gas-liquid separator 4, the flowmeter 5 is arranged on the desulfurized natural gas outlet pipeline 30 of the gas-liquid separator 4, and the dosing pump 29 The pipeline communicates with the desulfurization tank 3, and ...

Embodiment 2

[0051] On the basis of Embodiment 1, this embodiment provides an integrated desulfurization device that precisely controls the injection amount of desulfurization agent. The skid is also provided with a filter separator 2, and the gas outlet of the filter separator 2 passes through The pipeline communicates with the middle of the desulfurization tank 3 .

[0052] The filter separator 2 is used to filter out solid impurities such as sediment in the natural gas, and then enter the desulfurization tank 3 from the bottom of the filter separator 2 to remove hydrogen sulfide in the sulfur-containing natural gas.

Embodiment 3

[0054] On the basis of Embodiment 1, this embodiment provides an integrated desulfurization device that precisely controls the injection amount of desulfurization agent. The inner top of the gas-liquid separator 4 is provided with a mist-enhancing screen 13, and the gas-liquid separator 4 4 is installed with a liquid level gauge 1, and the liquid discharge port of the gas-liquid separator 4 is connected with a liquid discharge system 1 7, and the liquid discharge system 1 7 includes a pneumatic regulating valve 1 and a pneumatic shut-off valve 1, and the pneumatic regulating valve 1 Valve 1 and pneumatic shut-off valve 1 are sequentially arranged on the liquid discharge pipeline of the gas-liquid separator 4 along the liquid flow direction, and the liquid discharge pipeline is connected with a sewage system;

[0055] The drainage pipeline is connected with a sewage system;

[0056] The first liquid level gauge, the first pneumatic regulating valve and the first pneumatic cut-o...

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Abstract

The invention provides a desulfurization integrated device capable of accurately controlling the injection amount of a desulfurizing agent and a desulfurization method. The desulfurization integrateddevice comprises a desulfurization tank arranged on a skid base, a PLC control system, a dosing system and a gas-liquid separator; a gas outlet of the desulfurization tank is communicated with the middle of the gas-liquid separator through a pipeline; the dosing system comprises a dosing pump, a hydrogen sulfide detector I, a hydrogen sulfide detector II and a flow meter; the hydrogen sulfide detector I is arranged on a natural gas inlet pipeline of the desulfurization tank; the hydrogen sulfide detector II is arranged on a pipeline between the desulfurization tank and the gas-liquid separator, the flow meter is arranged on a desulfurized natural gas outlet pipeline of the gas-liquid separator, the dosing pump is communicated with the desulfurization tank through a pipeline, and the dosingpump, the hydrogen sulfide detector I, the hydrogen sulfide detector II and the flow meter are in electric signal connection with the PLC control system. According to the invention, the required desulfurization dosage is calculated through the PLC control system, and then a signal is sent to the dosing pump, so that the injection amount of the desulfurization agent injected into the desulfurization tank can be accurately adjusted.

Description

technical field [0001] The invention belongs to the technical field of natural gas purification, and in particular relates to an integrated desulfurization device and a desulfurization method for precisely controlling the injection amount of a desulfurizer. Background technique [0002] At present, the Sulige Gas Field and Yulin Gas Field, which are dominated by upper paleo-gas reservoirs in Changqing Gas Field, are gradually developing lower paleo-gas reservoirs. The natural gas in the lower ancient gas reservoirs contains hydrogen sulfide, which is a poisonous gas that can lead to poisoning and even death if inhaled. After entering the export pipeline, hydrogen sulfide will corrode the pipeline when it meets the free in the pipeline. In addition, ferrous sulfide, the product of hydrogen sulfide corrosion pipeline, is very easy to spontaneously ignite, thus causing safety accidents. Therefore, the hydrogen sulfide in the natural gas in the lower paleo-gas reservoir must b...

Claims

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Application Information

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IPC IPC(8): C10L3/10G05B19/05
CPCC10L3/103G05B19/05
Inventor 葛涛郑欣王登海薛岗刘银春杨光张祥光
Owner XIAN CHANGQING TECH ENG
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