A skid-mounted Claus sulfur tail gas treatment device

A tail gas treatment, skid-mounted technology, applied in the direction of sulfur preparation/purification, separation of dispersed particles, chemical instruments and methods, etc., can solve the problems of failing to meet environmental emission standards, large energy consumption for regeneration, and serious equipment corrosion. Achieve the effects of solving excessive sulfur content, improving recovery efficiency and purity, and high degree of automation

Active Publication Date: 2016-06-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the organic amine (MDEA) absorption process, the regeneration of the organic amine (MDEA) solution under the same conditions consumes a large amount of energy, resulting in high cost; the outlet temperature of the acid gas at the top of the regeneration tower is high, the proportion of water vapor is large, and it contains A large amount of latent heat is not utilized, thereby wasting a lot of resources; in addition, the organic amine (MDEA) solution is also relatively serious for equipment corrosion, and the H in the tail gas is recovered in the process. 2 S and SO 2 The content is still relatively high and cannot meet the national environmental emission standards

Method used

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  • A skid-mounted Claus sulfur tail gas treatment device
  • A skid-mounted Claus sulfur tail gas treatment device
  • A skid-mounted Claus sulfur tail gas treatment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] refer to Figure 1 to Figure 4 , a skid-mounted Claus sulfur tail gas treatment device, including two absorption towers 33, an electrolytic tank 11 and a secondary absorption tower 22.

[0034] The absorption tower 33 is rectangular and horizontal, and the ratio of length, width and height of the absorption tower 33 is 2:1:1. The electrolytic box 11 is welded at the bottom of the absorption tower 33 . Both ends of the absorption tower 33 are respectively provided with a first air inlet 6 and an air outlet 24 . Two absorption towers 33 are separated by central dividing plate 36, and the top of central dividing plate 36 is rectangle, and the bottom of central dividing plate 36 is right-angled trapezoid, and rectangular length is identical with absorption tower 33 lengths, and rectangular width is 1.8 of absorption tower 33 heights. times, the upper bottom of the right-angled trapezoid is the same as the length of the rectangle, and the length of the lower bottom of the ...

Embodiment 2

[0048] A skid-mounted Claus sulfur-containing tail gas treatment device includes two absorption towers 33 , an electrolysis box 11 and a secondary absorption tower 22 .

[0049]The absorption tower 33 is rectangular and horizontal, and the ratio of length, width and height of the absorption tower 33 is 2.8:1:1. The electrolytic box 11 is welded at the bottom of the absorption tower 33 . Both ends of the absorption tower 33 are respectively provided with a first air inlet 6 and a first air outlet 24 . Two absorption towers 33 are separated by central dividing plate 36, and the top of central dividing plate 36 is rectangle, and the bottom of central dividing plate 36 is right-angled trapezoid, and rectangular length is identical with absorption tower 33 lengths, and rectangular width is 1.6 of absorption tower 33 heights. times, the upper bottom of the right-angled trapezoid is the same as the length of the rectangle, and the length of the lower bottom of the right-angled trape...

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Abstract

The invention discloses a skid-mounted desulfurized tail gas purifying oxidation absorption liquid recycling apparatus, and belongs to the technical field of Claus tail gas treatment. The apparatus comprises two absorbing towers, an electrolysis tank and a secondary absorbing tower; and the electrolysis tank is welded to the bottom of the two absorbing towers, the two absorbing towers are separated by a central separator plate, two ends of the two absorbing towers are respectively provided with a first gas inlet and a gas outlet, areas at two ends in the absorbing towers are buffer zones, a middle area in each of the absorbing towers is a tower body, the tower body is divided into absorbing tower cabins through cabin separator plates, the top of the absorbing tower cabins is provided with spray charging holes, the spray charging holes are fixedly connected with oxidation absorption liquid spray branch tubes through flanges, and the oxidation absorption liquid spray branch tubes are connected with an oxidation absorption liquid spray main through a ball valve. The apparatus has the advantages of low cost, environmental protection, low electrochemical energy consumption, high sulfur recovery rate, and cooperation with absorbent recycling.

Description

technical field [0001] The invention belongs to the technical field of sulfur-containing tail gas treatment, and in particular relates to a skid-mounted Claus sulfur-containing tail gas treatment device. Background technique [0002] As chemical industry, metallurgy and other industries have higher requirements on the sulfur content of refined oil, the scale of desulfurization and sulfur recovery units in refineries is also expanding day by day. Because the Claus sulfur recovery process is mature and simple, and the investment cost is low, so far, more than 700 Claus units have been built, and 75% of the refineries use this process to recover sulfur. [0003] The process principle is to combine H 2 S with a certain proportion of O 2 Combustion, partially formed SO 2 with unreacted H 2 S generates sulfur under the action of catalyst. But in the actual industrial production process, H 2 The ratio of S to air is difficult to control within a fixed range, so in the Claus s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78B01D53/96B01D53/50B01D53/52C01B17/05
Inventor 王黎夏正海刘森张涧王文伟程诚肖翔胡宁李长林周芸王捷冯小娜
Owner CHINA PETROLEUM & CHEM CORP
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