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Device for the recovery and diffluence of sulfur dioxide and the system and method thereof

A sulfur dioxide and system device technology, which is applied in separation methods, chemical instruments and methods, sulfur preparation/purification, etc., can solve the problems of high operating costs and high prices, and achieve the effects of reduced investment, reduced consumption, and reduced volume

Active Publication Date: 2009-04-08
XIAN ZHONGYU SOFTWARE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the need for oxygen production equipment, the operating cost is high, especially the pure oxygen combustion burner is a patented product, and the price is relatively high

Method used

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  • Device for the recovery and diffluence of sulfur dioxide and the system and method thereof
  • Device for the recovery and diffluence of sulfur dioxide and the system and method thereof
  • Device for the recovery and diffluence of sulfur dioxide and the system and method thereof

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Embodiment 1

[0078] In a certain factory, the molar flow rate of acid feed gas is—V 0 =205.36kmol / h, H in acid feed gas 2 The molar fraction of S is 25.16%, the total COS, CS in the acid feed gas 2 Other organic sulfur (as elemental sulfur S 1 Meter) molar flow rate is——δ=1.00kmol / h, enters the H in the first stage Claus reactor 3 2 S and SO 2 The molar ratio is——ε=2.2, the sulfur recovery rate of the first and second stage Claus reactors 3,4 (in terms of elemental sulfur S 1 )——η=90%, then the system can additionally treat the maximum amount of sulfur-containing waste gas (in pure SO 2 Count) is:

[0079] δ 1MAX =205.36×0.2516×[0.9×(1+2.2)-2.2]÷2.2-1=14.97 kmol / h.

[0080] At this time, the amount of sulfur recovered has increased from the original 205.36×25.16÷100×32=1653 (kg / h) to 205.36×25.16÷100×32+14.97×32=2132 (kg / h), increasing production by 29%. The ability to treat waste gas is also improved accordingly, but the extent of the increase should be determined according to the...

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Abstract

The invention discloses a sulfur recovery equipment by sulfur dioxide recovery divided flow method and the sulfur recovery method. The acid material gas is divided into two channels. One channel is sent into the claus catalytic reactor with the sulfur dioxide from the sulfur dioxide recovery cell together to carry the catalytic conversion reaction out and the obtained tail gas is sent into the incinerator with the other channel together to burn in peroxy. All compounds with sulfur are translated into the sulfur dioxide to be sent into the sulfur dioxide recovery cell to carry sulfur dioxide recovery out so that after the sulfur dioxide in gas is coincidence with the discharge standard it is discharged in air and obtained sulfur dioxide is returned to the claus reactor again. It is provided with simple structure, low cost, on treatment for tail gas, simplified reaction process. Decreased invest, shrinkage cubage, little catalyzer dosage, no high-temperature heating reacting segment, no material acid air washing pretreatment process and no hydrolyzing catalyzer. It can treat poor H2S acid gas and solve environmental pollution. It can enlarge the sulfur recovery and the recovery invest can not be enlarged.

Description

technical field [0001] The present invention relates to chemical industry from containing H 2 A system device and method for recovering sulfur from acid waste gas, especially suitable for sulfur dioxide recovery and split flow sulfur recovery devices and a method for recovering sulfur by system devices. Background technique [0002] According to incomplete statistics, as of 2003, my country has built more than 100 sets of sulfur recovery devices, including 71 sets of petroleum refining, 12 sets of natural gas purification, 7 sets of coking metallurgy, and 21 sets of coal gasification. Among them, the largest set is 100,000 t / a, the smallest device is 0.03 million t / a. Since 2004, Sinopec Zhenhai, Fujian and other refineries will also invest in the construction of 3 to 4 sets of 100,000 t / a large-scale sulfur recovery units, with a total sulfur recovery capacity of more than 1 million t / a. Among the more than 100 sets of devices, the devices built after 2002 all have exhaust...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/52B01D53/86C01B17/04
CPCY02A50/20
Inventor 孟旭光解庆忠
Owner XIAN ZHONGYU SOFTWARE TECH
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