Method for removing hydrogen sulfide from natural gas

A technology for hydrogen sulfide and natural gas, which is applied in the direction of gas fuel, petroleum industry, fuel, etc. It can solve the problems of complex device process, low processing capacity, high energy consumption, etc., and achieve the effects of high removal efficiency, environmental protection, and energy saving

Active Publication Date: 2011-01-26
SHANDONG SUNWAY PETROCHEMICAL ENGINEERING CO LTD
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Problems solved by technology

[0004] There are two types of natural gas desulfurization methods in the prior art: wet desulfurization and dry desulfurization. Wet desulfurization involves many chemical operation units and special equipment such as absorption towers, flash tanks, and regeneration

Method used

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  • Method for removing hydrogen sulfide from natural gas
  • Method for removing hydrogen sulfide from natural gas

Examples

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Embodiment 1

[0052] Example 1 Method for removing hydrogen sulfide from natural gas

[0053] The method for removing hydrogen sulfide from natural gas according to the present invention converts hydrogen sulfide gas in natural gas into solid hydrate under the conditions of pressure 10MPa and temperature 10°C, realizes separation from natural gas and is removed, and mainly includes the following devices :

[0054] a. Natural gas feed buffer tank 2

[0055] b. Hydrogen sulfide hydration tower 5

[0056] The hydrogen sulfide hydration tower 5 adopts a vertical cylindrical structure with a height-to-diameter ratio of 1:2 to 1:20.

[0057] The hydrogen sulfide hydration tower 5 is equipped with a porous spiral coil 6, so that when the raw material is fed through the spiral coil bubbling, a material flow of spiral jet and rotating motion is formed, which promotes full contact of the reaction materials and improves the synthesis efficiency of hydrogen sulfide hydrate .

[0058] Hydrogen sulfi...

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Abstract

The invention relates to a method for removing hydrogen sulfide from natural gas, in particular to a treatment method for removing the hydrogen sulfide from the natural gas in a solid hydrate form, belonging to the treatment of natural gas. In the method, hydrogen sulfide gas in natural gas is converted into a solid hydrate under 2-10MPa at 15 DEG C under zero to 25 DEG C to separate and remove the sulfide gas from the natural gas. A device for the method mainly comprises a natural gas inlet buffer tank (2), a hydrogen sulfide hydration tower (5) and a hydrogen sulfide hydrate molding pot (8). The method comprises the following steps of: (1) standing still for dewatering; (2) synthesizing the hydrogen sulfide hydrate; (3) molding the hydrogen sulfide hydrate; (4) filtering and storing; and (5) outputting a desulfurized natural gas product. The method for removing the hydrogen sulfide from the natural gas can be used for separating the hydrogen sulfide from the natural gas in the form of solid without any absorbent and adsorbent and has the advantages of simple process flow, investment saving, low energy consumption and large hydrogen sulfide removal production capacity.

Description

technical field [0001] The invention is a method for removing hydrogen sulfide from natural gas. It belongs to the processing of natural gas, and particularly relates to a processing method for removing hydrogen sulfide from natural gas in the form of solid hydrate. Background technique [0002] Natural gas is stored in porous rock formations with a depth of about 3,000 to 4,000 meters underground. The main component is methane. It has been widely used in many aspects such as power industry, residential life, vehicle fuel, and chemical raw materials. [0003] The sulfur in natural gas mainly exists in the form of hydrogen sulfide. The acidity of hydrogen sulfide causes corrosion damage to natural gas transmission and application equipment. The toxicity of hydrogen sulfide poses a threat to the environment and human health. Therefore, the removal of hydrogen sulfide in natural gas is of great significance for the transportation and application of natural gas. [0004] There...

Claims

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Application Information

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IPC IPC(8): C10L3/10
Inventor 刘桂玲
Owner SHANDONG SUNWAY PETROCHEMICAL ENGINEERING CO LTD
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