Small natural gas desulfurization device and desulfurization method thereof

Abstract

The invention discloses a small natural gas desulfurization device. The device is characterized in that lower ends of a plurality of desulfurization tanks (2) are connected with a main gas inlet tube (1) through branched gas inlet tubes (4) respectively; upper ends of the plurality of desulfurization tanks (2) are connected with a main gas outlet tube (3) through branched gas outlet tubes (5) respectively; the middle of the main gas outlet tube (1) is connected with the middle of the main gas outlet tube (3) through a pipeline, so the plurality of desulfurization tanks (2) can run in both manners of series and parallel; the branched gas inlet tubes (4) and the branched gas outlet tubes (5) have mutually independent structures, so a dead desulfurizer can be individually replaced without shut-down of the device; and the middle part of the desulfurization device is provided with two pressure meters (16), the pressure meters are communicated with the main gas inlet tube and the main gas outlet tube respectively, and whether the desulfurization device normally operate or not can be determined by observing the pressure difference between the two meters. Hubbed flanges (4) are welded on the desulfurization tanks (2) in the desulfurization device by seamless steel tubes, and the upper part of each of the desulfurization tanks (2) is provided with a hubbed visor (10).

Description

technical field [0001] The patent of the invention relates to a small-scale natural gas desulfurization device and a desulfurization method thereof, belonging to the field of natural gas purification equipment. It can be used for in-situ desulfurization or biogas desulfurization of natural gas production stations in the chemical industry. Background technique [0002] Natural gas production and transportation stations and their surrounding areas need to use purified natural gas as production and domestic gas. Generally, it is desulfurized and purified from desulfurization plants and then sent out by laying pipelines or desulfurized on-site by special desulfurization towers before use. However, for remote areas or small natural gas production stations, due to the small amount of natural gas they need, these two methods are not only expensive, but also cause waste of resources. Therefore, a small or micro natural gas desulfurization device is needed, which can be flexible, It...

AI Technical Summary

Problems solved by technology

However, for remote areas or small natural gas production stations, due to the small amount of natural gas they need, these two methods are not only expensive, but also cause waste of resources. Therefore, a small or micro natural gas desulfurization device is needed, which can be flexible, It is convenient and low-cost to meet the requirements of these natural gas production units for the direct use of the natural gas produced by themselves after desulfurization in situ

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