Novel safe skid-mounted natural gas desulfurization system

Abstract

The invention provides a novel safe skid-mounted natural gas desulfurization system which comprises fine filters, an electric heater, a membrane separator, two desulfurization tanks, an anti-explosion control cabinet, an air compressor and a nitrogen device, wherein the fine filters are used for separating liquid water drops from solids; the electric heater can re-heat natural gas to guarantee that the gas temperature is higher than the dew point temperatures of the water and hydrocarbon; the membrane separator is used for crude separation of hydrogen sulfide in the natural gas; the desulfurization tanks can realize re-adsorption of a small amount of residual hydrogen sulfide in the natural gas to keep the pressure of the internal protection gas to be higher than that of surrounding explosive gas environment, so that external explosive gas mixtures are prevented from entering the anti-explosion control cabinet in the system effectively; the air compressor is used for converting the original mechanical energy into gas pressure energy; the nitrogen device provides nitrogen for sweeping; a differential pressure instrument is arranged on each fine filter; a dust filter and a hydrogen sulfide content detection device are arranged at the bottom of each desulfurization tank. The novel safe skid-mounted natural gas desulfurization system has the advantages of being convenient to mount and transport, reusable, low in cost and high in safety performance and having a monitoring function.

Description

technical field [0001] The invention belongs to the technical field of natural gas purification treatment equipment, and in particular relates to a novel and safe natural gas skid-mounted desulfurization system. Background technique [0002] Hydrogen sulfide is generally contained in natural gas in my country. Hydrogen sulfide is a highly hazardous medium, which not only endangers human health and pollutes the environment, but also has a corrosive effect on gas pipelines and related equipment. Therefore, it is necessary to desulfurize natural gas. With the development of natural gas extraction technology, more natural gas desulfurization technologies have emerged. Including natural gas wet desulfurization technology, high gravity redox desulfurization, modified activated carbon catalytic oxidation desulfurization, microbial desulfurization. The disadvantages of the desulfurization method in the prior art include: high cost, high requirements on the working environment, or ...

AI Technical Summary

Problems solved by technology

The disadvantages of the desulfurization method in the prior art include: high cost, high requirements on the working environment, or too large equipment that is not easy to install, disassemble and shift; at the same time, there are defects in the relevant measures for safety and explosion protection during the desulfurization process, which poses a threat to the environment. Production poses a great safety hazard

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