Method for desulphurization of dry gas and liquefied gas

Abstract

The invention discloses a method for realizing desulfurization of dry gas and liquefied gas. The sulfur-containing dry gas enters the dry gas liquid separation tank at 40°C and 1.3 MPa, removes the liquid droplets and mechanical impurities carried by it, and then enters the dry gas The lower part of the desulfurization tower, in the dry gas desulfurization tower, is in countercurrent contact with the lean amine liquid pumped into the tower by the amine liquid circulation pump, the H2S in the dry gas is absorbed by the lean amine liquid solution, and the dry gas without H2S is settled by gravity in the tower section and wire mesh demister to separate the carried solvent, then enter the settling tank for further sedimentation and separation of the carried solvent, and then go through the pressure regulating valve to the hydrogen concentration device, and the dry gas after the hydrogen concentration device enters the high pressure of the whole plant gas system. This process can clean the sulfur components in dry gas and liquefied gas, and obtain dry gas and liquefied gas with high purity, which will not cause environmental pollution during subsequent combustion and use, and also protect people's physical safety.

Description

technical field [0001] The invention belongs to the petroleum field, in particular to a method for realizing desulfurization of dry gas and liquefied gas. Background technique [0002] Oil and gas is the gas that comes out of oil wells with oil, and its main components are methane, ethane, etc. Used as fuel and chemical raw material. Oil and gas generation has the following conditions. First, it depends on the amount of organic matter in the oil source layer, which is usually called "organic matter abundance". Mainly measure the residual organic carbon content in order to determine whether there are oil-generating layers in an area and how many oil-generating layers there are, and divide them into good, medium and poor oil-generating layers according to certain standards for classification and evaluation. Second, it depends on the quality of organic matter in the oil source layer, which is usually called "organic matter type". According to the biological source, the kerog...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned existing dry gas and liquefied gas, which contain more sulfur components inside, and the treatment efficiency is poor, so that the dry gas and liquefied gas produce sulfide when they are finally used, pollute the environment and fail to meet the standard, which is harmful to people. The body also causes damage. A method for desulfurization of dry gas and liquefied gas is designed. This process can clean the sulfur components in dry gas and liquefied gas, and obtain dry gas and liquefied gas with higher purity. Subsequent combustion will not cause environmental pollution and protect people's health. It solves the problem that the existing dry gas and liquefied gas contain more sulfur in the interior, and the processing efficiency is poor, which makes the dry gas and liquefied gas Produce sulfide, pollute the environment and fail to meet the standards, and cause damage to people's bodies

[0005] To sum up, the beneficial effects of the present invention are: the process can clean the sulfur components in dry gas and liquefied gas, and obtain dry gas and liquefied gas with high purity, which will not cause environmental pollution during subsequent combustion and use. It also protects people's physical safety, and solves the problem that the existing dry gas and liquefied gas contain more sulfur components inside, and the processing efficiency is poor, which makes the dry gas and liquefied gas produce sulfide when they are finally used, pollute the environment and fail to meet the standards. Problems that also cause damage to people's bodies