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Amine liquid run loss comprehensive control method and device in desulfurization solvent regeneration process

A technology of regeneration process and comprehensive prevention and control, applied in separation methods, chemical instruments and methods, separation of dispersed particles, etc., can solve problems such as running loss of amine liquid and prolonging the running time of the device

Inactive Publication Date: 2013-04-03
SHANGHAI HUACHANG ENVIRONMENT PROTECTION
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Problems solved by technology

[0005] However, the above-mentioned methods in the prior art have not been able to effectively and comprehensively solve the problems of loss of amine liquid in the regeneration process of the desulfurization solvent in the natural gas purification plant and prolonging the running time of the device.
[0006] In summary, this field has not yet developed a method that can effectively and comprehensively solve the problems of amine liquid run-off in the desulfurization solvent regeneration process of a natural gas purification plant and prolong the running time of the device, and comprehensively prevent and control the amine liquid run-off in the desulfurization solvent regeneration process of a natural gas purification plant. damage method and device

Method used

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  • Amine liquid run loss comprehensive control method and device in desulfurization solvent regeneration process

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Embodiment 1

[0042] Example 1: The regeneration process of desulfurization solvent in the natural gas desulfurization unit of the first combined unit of Puguang Natural Gas Purification Plant flow intensified process

[0043] Process flow: such as figure 1 shown.

[0044] The processing capacity of the device is 2×300×10 4 N m 3 / d, H in high-sulfur natural gas 2 S content is 13-18% (v), organic sulfur content is 340.6mg / m 3 , CO 2 The content is 810% (v).

[0045] The main operating medium of the amine liquid regeneration tower is amine liquid and acid gas, the operating temperature is 128°C, the operating pressure is 0.12MPa, the liquid phase flow rate is 778209kg / h, and the liquid phase density is 957.9kg / m 3 , the gas phase flow rate is 78344kg / h, and the gas phase density is 1.20kg / m 3 , the minimum pressure drop (in clean state) of follow-up equipment is 0.02MPa, and the maximum pressure drop (in fouling state) is 0.1MPa. The micro-swirl core tube adopts the HL / S type liquid...

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Abstract

The invention relates to an amine liquid run loss comprehensive control method and a device in a desulfurization solvent regeneration process and provides the amine liquid run loss comprehensive control method in desulfurization solvent regeneration process. The method comprises the following steps that: (a) before a desulfurization rich fluid enters into a regeneration tower, solid particles carried in the desulfurization rich fluid is removed by a liquid-solid micro-cyclone separation technology; and (b) at the rear part of the generation tower top air cooler, the amine liquid entrained in acid gas which is exhausted by the regeneration tower is recycled by using a gas-liquid micro-cyclone separation technology. The invention further provides the amine liquid run loss comprehensive control device in the desulfurization solvent regeneration process.

Description

technical field [0001] The invention belongs to the fields of petrochemical industry and environmental protection, and relates to a swirl intensified process method for the desulfurization solvent regeneration process, which is suitable for the process of the amine liquid regeneration system part of the natural gas purification unit. Specifically, the present invention relates to a method and device for comprehensive prevention and control of amine liquid loss in the desulfurization solvent regeneration process of a natural gas purification plant. Background technique [0002] Solvent filtration is the most commonly used method in solvent desulfurization and decarburization systems. The solid-liquid separation method of rich amine liquid has always been based on filtration, and has also received a lot of development in recent years. Chinese patent ZL201120036545 provides a Purification filter for rich amine liquid, including a primary filter device (with a stainless steel si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14B01D53/18
Inventor 范轶汪华林李浩朱学军马良张艳红吴文锋
Owner SHANGHAI HUACHANG ENVIRONMENT PROTECTION
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