Device and method for removing organic sulfur out of gas material

A gas material and organic sulfur technology, applied in the field of desulfurization, can solve the problems of increased investment, frequent replacement of solid hydrolysis catalysts and fine desulfurizers, large equipment footprint, etc., and achieve the effect of no discharge of three wastes

Pending Publication Date: 2018-10-12
NINGBO ZHANGFU ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially for carbonyl sulfide content exceeding 30mg / Nm 3 , it is necessary to design two hydrolysis towers and two fine desulfurization towers, and to operate in series, the device occupies a larger area, increases investment, and the replacement of solid hydrolysis catalyst and fine desulfurization agent will be more frequent

Method used

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  • Device and method for removing organic sulfur out of gas material

Examples

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Comparison scheme
Effect test

Embodiment 1

[0046] A sample of natural gas produced in an oil and gas field, after extraction and desulfurization with amine solution, the total sulfur was 375mg / Nm 3 , of which the hydrogen sulfide content is 12mg / Nm 3 , adopt the inventive method to carry out desulfurization test, test result is as follows:

[0047] The test temperature of natural gas desulfurization is 24°C, after being treated by the experimental device of the method of the present invention, the total sulfur of natural gas is 5mg / Nm 3 .

Embodiment 2

[0049] A petrochemical company catalytic unit produces dry gas 15000-20000 Nm 3 / h, total sulfur 100-200mg / Nm after extraction and desulfurization by amine solution 3 , wherein the hydrogen sulfide content is less than 10mg / Nm 3 , adopt the method of the present invention to build a set of gas material removal device of organic sulfur, device operation result is as follows:

[0050] The operating temperature of the dry gas desulfurization extraction tower is 25-40°C, the pressure is 0.8-1.1MPa, and the total circulation flow rate of the desulfurizer is 12-15m 3 / h, send regeneration tower rich desulfurizer flow rate 2-3m 3 / h, the operating pressure of the regeneration tower is 0.12MPa, the temperature at the bottom of the regeneration tower is 115-120°C, the temperature at the top of the tower is 90-95°C, and the total sulfur in the dry gas after desulfurization does not exceed 10mg / Nm 3 .

[0051] In summary, with the aid of the above-mentioned technical scheme of the p...

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Abstract

The invention discloses a device and a method for removing organic sulfur out of gas material. The method comprises the following steps of sending the sulfur-containing gas material into a desulfurizing extracting tower via a gas distributor, pressurizing a desulfurizer by a desulfurizer circulating pump, sending into the desulfurizing extracting tower via a liquid distributor, enabling gas and liquid phases to reversely flow, enabling the sulfur-containing gas material to be in contact with a filler in the desulfurizing extracting tower, hydrolyzing the carbonyl sulfide in the sulfur-containing gas material into hydrogen sulfide and carbon dioxide in the desulfurizing extracting tower, enabling the generated hydrogen sulfide and the original hydrogen sulfide in the sulfur-containing gas material to be absorbed into the desulfurizer, enabling one part of rich desulfurizer containing the hydrogen sulfide to circulate by self, sending one part of rich desulfurizer to a regeneration unit,and delivering the desulfurized gas material out of a gas material discharge pipe at the top part of the desulfurizing extracting tower. The method has the advantage that the gas material and the desulfurizer reversely flow and are in full contact in the desulfurizing extracting tower, the carbonyl sulfide in the sulfur-containing gas material can be removed to the content 10mg / Nm<3> or less, thetotal sulfur can be removed to the content 20mg / Nm<3> or less, and the rich desulfurizer can heat and decompose the hydrogen sulfide to regenerate, so that the recycling effect is realized.

Description

technical field [0001] The invention relates to the technical field of desulfurization, in particular to a device and method for removing organic sulfur from gas materials. Background technique [0002] Gas-phase fuel gas (also known as dry gas) is produced in atmospheric and vacuum units, catalytic units, and delayed coking units in refineries, and oil and gas fields also produce gas-phase natural gas. The main components of fuel gas and natural gas are hydrogen, methane and ethane. [0003] The boiling points of hydrogen and lower molecular weight light hydrocarbons are shown in the table below: [0004] Material name Boiling point °C hydrogen -252.8 methane -161.5 ethane -88.6 Vinyl -104 propane -42 Propylene -47 butane -0.5 Butene -6.9 [0005] The boiling points of some low molecular forms of sulfur are shown in the table below: [0006] Form sulfur name B...

Claims

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Application Information

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IPC IPC(8): C10L3/10B01D53/96B01D53/78B01D53/52B01D53/48
CPCB01D53/48B01D53/52B01D53/78B01D53/96C10L3/103
Inventor 梁玮秦中良姜航李子国文平喻武钢徐振华
Owner NINGBO ZHANGFU ENERGY TECH CO LTD
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