CN203862095U - High-purity hydrogen sulfide recovery device - Google Patents
High-purity hydrogen sulfide recovery device Download PDFInfo
- Publication number
- CN203862095U CN203862095U CN201320831012.XU CN201320831012U CN203862095U CN 203862095 U CN203862095 U CN 203862095U CN 201320831012 U CN201320831012 U CN 201320831012U CN 203862095 U CN203862095 U CN 203862095U
- Authority
- CN
- China
- Prior art keywords
- hydrogen sulfide
- section
- lean solution
- carbon dioxide
- tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Classifications
-
- Y02P20/121—
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model provides a high-purity hydrogen sulfide recovery device which comprises a flashing washer, a dividing-wall type regeneration tower and a concentrating tower provided with two washing sections, wherein a main body of the flashing washer is a flashing tank, and the upper part of the flashing tank is communicated with a half barren liquor washing section which is filled with a filler; the dividing-wall type regeneration tower is divided into a carbon dioxide rectifying section, a carbon dioxide stripping section, a hydrogen sulfide rectifying section and a hydrogen sulfide stripping section by arranging vertical partition boards inside and is filled with a filler; and the concentrating tower is divided into a barren liquor refine washing section and a half barren liquor washing section and filled with a filler. With the adoption of the high-purity hydrogen sulfide recovery device, energy consumption and investments can be effectively reduced, high-purity hydrogen sulfide gas with the weight-to-concentration ratio larger than 99.5% can be obtained simultaneously, and up-to-standard release of tail gas is effectively guaranteed.
Description
Technical field
The utility model relates to a kind of high-purity hydrogen sulfide retracting device.
Background technology
Hydrogen sulfide is a kind of colourless toxic gas that has rotten egg smell, and environmental pollution is very serious.All adopt at present solvent to select absorption technique both at home and abroad, carry out the higher tail gas of sulfide hydrogen that produces in the industry such as enrichment chemical fertilizer, chemical industry, agricultural chemicals, rubber, oil, adopt again afterwards catalytic oxidation, by Cross unit, hydrogen sulfide is changed into sulphur.This single processing mode makes at present domestic sulphur excessive and unsalable.
Meanwhile, the product that the high-purity hydrogen sulfide of take is produced as raw material is but that kind is many, and purposes is wide, produce and be also easy to control, and three-waste free discharge, there is good economic benefit.In mechanical industry, high-purity hydrogen sulfide is for processing and the diesel cylinder sleeve ion sulfurization technique of carbide chip, and in electronics industry, high-purity hydrogen sulfide gas is for the manufacture of large scale integrated circuit and the production of color picture tube fluorescent material.
In addition, high-purity hydrogen sulfide can deep processing be: agricultural chemicals ethyl mercaptan, spicy thioalcohol, and for the production of organic agricultural chemicals such as isothioate, thimets, and ethylenebis dithiocarbamate carbamic acid vinegar herbicide, agrochemical; Feed addictive methyl mercaptan, for the production of DL-METHIONINE; Pharmaceutical products thioacetic acid, for the manufacture of diuretics spirolactone; Cosmetics of everyday use vulcanized sodium, for the production of coloured glaze guanidine-acetic acid, coloured glaze guanidine-acetic acid is the primary raw material of daily cosmetics; Polymer builder 2-coloured glaze base ethanol, for the synthesis of macromolecular material polymerization catalyst and resin curing agent; Organic synthesis intermediate dimethyl sulphide, can make dimethyl alum, and this product is the industry purposes such as oil refining, petrochemical industry solvent and fine chemical material very widely; Combustion gas odor additive thiophane and two sulphur methyl ethers, ethyl mercaptan, odor additive is added in coal gas, can find in time gas leak.
Given this, add in the acid tail gas producing in the industry such as current chemical fertilizer, chemical industry, agricultural chemicals, rubber, oil hydrogen sulfide content itself higher, and form uncomplicated feature again, should carry out separation and purification to it, and directly reclaiming and make highly purified, weight ratio concentration is greater than 99.5% hydrogen sulfide gas.Based on this, just can widen the downstream application field that hydrogen sulfide-containing tail gas is administered, and then improve the whole efficiency of acid tail gas sulfur recovery and the development and application that drives high-purity hydrogen sulfide downstream product.
In solvent is selected absorption technique, the solvent of the absorbing hydrogen sulphide that generally can adopt is: N methyldiethanol amine (MDEA), to NHD (NHD) and propene carbonate etc.But solvent reclamation process energy consumption is large, investment is large, and the sulfureted hydrogen gas concentration of acquisition is low, and general weight ratio concentration is only 18～40%, and emission is difficult to problem up to standard.
Utility model content
The purpose of this utility model is to provide a kind of high-purity hydrogen sulfide retracting device, can effectively reduce energy consumption and investment, can obtain the high concentration hydrogen sulfide gas that weight ratio concentration is greater than 99.5%, and effectively guarantee the qualified discharge of tail gas simultaneously.
The purpose of this utility model is realized by the following technical programs: a kind of high-purity hydrogen sulfide retracting device, it is characterized in that: comprise flash distillation washer, bulkhead type regenerator and concentration tower with two sections of washings, the main body of flash distillation washer is flash tank, its top is linked with one section of semi lean solution washing section, in-built filler; Bulkhead type regenerator is that vertical clapboard is set in tower, and interior separation is become to carbon dioxide rectifying section, carbon dioxide stripping section, hydrogen sulfide rectifying section and four parts of hydrogen sulfide stripping section; Concentration tower is divided into lean solution fine wash sections and semi lean solution washing section, in-built filler.
The utility model has the advantage of, due to the gas that rich solution vacuum flashing goes out in flash distillation washer, through a small amount of lean solution washing, remove after hydrogen sulfide, can directly arrange outward, rather than again import in unstripped gas, this has just overcome very most carbon dioxide and in system, has repeatedly absorbed and resolve the shortcomings such as brought solvent internal circulating load is large, energy consumption is large; Simultaneously, after the semi lean solution pressurization obtaining due to flash distillation washer, its part can directly turn back to the semi lean solution washing section of concentration tower, hydrogen sulfide for washing material gas, further increase the concentration of hydrogen sulfide in rich solution, and then effectively reduced the load of regenerator, thereby equipment investment and the steam consumption of regenerator have been reduced; Bulkhead type regenerator is equivalent to carbon-dioxide regenerating tower and hydrogen sulfide regenerator to be integrated into a tower, and the inside of two towers is integrated, can a public reboiler, reduced equipment investment, and also effectively reduced the energy consumption of regenerator simultaneously.
Accompanying drawing explanation
Fig. 1 is flow process figure of the present utility model.
1 is carbon dioxide rectifying section, 2 is carbon dioxide stripping section, 3 is hydrogen sulfide rectifying section, 4 is hydrogen sulfide stripping section, 5 is bulkhead type regenerator, 6 is compressor, 7 is concentration tower, 8 is lean solution fine wash sections, 9 is semi lean solution washing section, 10 is pressure-reducing valve, 11 is semi lean solution washing section on flash distillation washer, 12 is semi lean solution circulating pump, 13 is lean solution cooler, 14 is lean solution and semi lean solution heat exchanger, 15 is flash tank, 16 is force (forcing) pump, 17 is reboiler, 18 is the first condenser, 19 is the first return tank, 20 is the first reflux pump, 21 is the second condenser, 22 is the second return tank, 23 is the second reflux pump, 24 is that the first pressure-reducing valve 25 is unstripped gas and tail gas heat exchanger, 26 is the second pressure-reducing valve, 27 is semi lean solution cooler, 28 is flash distillation washer.
The specific embodiment
With reference to the accompanying drawings, the utility model is further described.
Referring to accompanying drawing 1, the utility model mainly comprises three parts, and concentration tower 7 is divided into lean solution fine wash sections 8 and semi lean solution washing section 9 two parts, and the inner filler loading is interior curved arc shape rib flat ring type filler, is called for short the flat ring of QH-1 type, and concentration tower is stainless steel manufacture; The main body of flash distillation washer 28 is flash tank, flash tank top UNICOM semi lean solution washing section 11, and the filler that load semi lean solution washing section 11 inside is the flat ring of QH-1 type, flash distillation washer is stainless steel manufacture; In bulkhead type regenerator 5 towers, vertical clapboard is set, the interior separation of tower is become to four parts, carbon dioxide rectifying section 1, carbon dioxide stripping section 2, hydrogen sulfide rectifying section 3, hydrogen sulfide stripping section 4, the inner filler loading is the flat ring of QH-1 type, and regenerator is stainless steel manufacture.
The acid gas that contains hydrogen sulfide and carbon dioxide converges with the flashed vapour that comes from flash tank 15, after compressor 6 compressions, after cold by unstripped gas and tail gas heat exchanger 25 recovery downstream exhaust gas, enter concentration tower 7 bottoms, first pass through semi lean solution washing section 9 from bottom to top, with top-down semi lean solution, slough partial vulcanization hydrogen, pass through again lean solution fine wash sections 8, by top-down lean solution, slough remaining whole hydrogen sulfide, until concentration tower 7 top tail gas can qualified discharge.Absorption at the bottom of concentration tower tower the rich solution of whole hydrogen sulfide and partial CO 2 first after pressure-reducing valve 10 decompressions, enter flash distillation washer 28, flashed vapour also removes hydrogen sulfide and a small amount of carbon dioxide in flashed vapour by top-down lean solution therein by the semi lean solution washing section 11 with flash distillation washer 28 top UNICOMs from bottom to top, and remaining whole flashed vapours are with being converged by the post-decompression tail gas of the second pressure-reducing valve 26.
After the semi lean solution that flash distillation washer 28 is discharged pressurizes via semi lean solution circulating pump 12, after part is lowered the temperature via semi lean solution cooler 27, turn back to the top of the semi lean solution washing section 9 of concentration tower 7, for hydrogen sulfide and the partial CO 2 of washing material gas; Remain semi lean solution and reclaim after heats via lean solution and semi lean solution heat exchanger 14, temperature raises, then via after the first pressure-reducing valve 24 decompressions, enters flash tank 15, and flashed vapour returns and imports in unstripped gas, and liquid enters bulkhead type regenerator 5 after being pressurizeed by force (forcing) pump 16.
The semi lean solution that contains whole hydrogen sulfide and a small amount of carbon dioxide is from the middle part charging of bulkhead type regenerator 5, and part more than charging is carbon dioxide rectifying section 1, realizes therein solvent and the separated of carbon dioxide with refining; Below charging, the region of dividing plate feed side is carbon dioxide stripping section 2, realizes therein the concentrated of carbon dioxide in solvent; The relative side of dividing plate charging is hydrogen sulfide rectifying section 3, realizes therein the separation of hydrogen sulfide with refining; Region below dividing plate is hydrogen sulfide stripping section 4, realizes therein the concentrated of hydrogen sulfide in solvent.Wherein solvent be N methyldiethanol amine (MDEA), a kind of to NHD (NHD) or propene carbonate.
The gas fraction that the first condenser 18 at carbon dioxide rectifying section 1 top obtains is the hydrogen sulfide of carbon dioxide and minute quantity, and all the other liquid, via the first return tank 19 and the first reflux pump 20, return to the top of carbon dioxide rectifying section 1 as phegma; The hydrogen sulfide product gas that the gas fraction that the second condenser 21 at hydrogen sulfide rectifying section 3 tops obtains is high concentration, all the other liquid, via the second return tank 22 and the first reflux pump 23, return to the top of hydrogen sulfide rectifying section 3 as phegma.Bulkhead type regenerator 5 adopts saturated vapor as the thermal source of reboiler 17, the lean solution of tower reactor extraction via lean solution and semi lean solution heat exchanger 14 reclaim heats and lean solution cooler 13 cooling after, turn back to the top of the lean solution fine wash sections 8 of concentration tower 7, for the whole hydrogen sulfide of residue and the partial CO 2 of washing material gas.
It should be noted that: the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record previous embodiment is modified, or part technical characterictic is wherein replaced on an equal basis.
All within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (1)
1. a high-purity hydrogen sulfide retracting device, it is characterized in that: comprise flash distillation washer (28), bulkhead type regenerator (5) and with the concentration tower (7) of two sections of washings, flash distillation washer (28) main body is flash tank, its top is linked with one section of semi lean solution washing section (11), in-built filler; Bulkhead type regenerator (5) is that vertical clapboard is set in tower, tower interior separation is become to carbon dioxide rectifying section (1), carbon dioxide stripping section (2), hydrogen sulfide rectifying section (3) and (4) four parts of hydrogen sulfide stripping section, in-built filler; Concentration tower (7) inside is divided into lean solution fine wash sections (8) and semi lean solution washing section (9), in-built filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320831012.XU CN203862095U (en) | 2013-12-16 | 2013-12-16 | High-purity hydrogen sulfide recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320831012.XU CN203862095U (en) | 2013-12-16 | 2013-12-16 | High-purity hydrogen sulfide recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203862095U true CN203862095U (en) | 2014-10-08 |
Family
ID=51643086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320831012.XU Withdrawn - After Issue CN203862095U (en) | 2013-12-16 | 2013-12-16 | High-purity hydrogen sulfide recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203862095U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103657352A (en) * | 2013-12-16 | 2014-03-26 | 华陆工程科技有限责任公司 | High-purity hydrogen sulfide recovery device and recovery method |
| CN105126576A (en) * | 2015-07-29 | 2015-12-09 | 中国石油集团工程设计有限责任公司 | High-efficiency composite desulphurization solvent and system and method for removing acidic gas and organic sulfur |
| CN115634566A (en) * | 2022-10-28 | 2023-01-24 | 大连理工大学 | MDEA semi-lean cycle desulfurization device and method using low-temperature heat |
-
2013
- 2013-12-16 CN CN201320831012.XU patent/CN203862095U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103657352A (en) * | 2013-12-16 | 2014-03-26 | 华陆工程科技有限责任公司 | High-purity hydrogen sulfide recovery device and recovery method |
| CN105126576A (en) * | 2015-07-29 | 2015-12-09 | 中国石油集团工程设计有限责任公司 | High-efficiency composite desulphurization solvent and system and method for removing acidic gas and organic sulfur |
| CN115634566A (en) * | 2022-10-28 | 2023-01-24 | 大连理工大学 | MDEA semi-lean cycle desulfurization device and method using low-temperature heat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103657352B (en) | High-purity hydrogen sulfide retracting device and recovery method | |
| CN101912718B (en) | Device and method for absorbing carbon disulfide in hydrogen sulfide gas by using solvent | |
| CN103204470A (en) | Gas transformation deep purifying technique for separating and purifying CO and H2 of calcium carbide furnace | |
| CN203862095U (en) | High-purity hydrogen sulfide recovery device | |
| CN103333056B (en) | Method and device for deeply removing sulfide in MTBE | |
| CN102898286A (en) | Method for removing sulfides in MTBE by adsorptive distillation | |
| CN103772250A (en) | Method for recovery processing sulfur-containing mixed waste gas in production of viscose | |
| CN105523524A (en) | Apparatus and method for producing highly pure hydrogen sulfide | |
| CN103922900A (en) | Method for removing sulfide in methyl tertiary butyl ether through double-solvent extractive distillation | |
| CN203060883U (en) | Waste gas recovery system for producing carbon disulfide | |
| CN106823691B (en) | A kind of method of hydrogen sulfide gas concentrate | |
| CN203090756U (en) | Desulphurization device for hydrogen sulfide-containing gas | |
| CN205603541U (en) | Technology gas purifier | |
| CN105693573B (en) | A kind of method and device of by-product production sodium methyl mercaptide using dimethyl sulphide synthesis | |
| CN104987275B (en) | A kind of technique and system of two-part furnace of calcium carbide fine coal ethene | |
| CN103638802A (en) | Device and method for processing acid gas of refinery plant | |
| CN109929638A (en) | A kind of method and apparatus for integrating hydrate and combining acid gas in removing natural gas with hydramine method | |
| CN106928106B (en) | Utilize the technique of hydrogen sulfide containing gas generation dimethyl disulfide | |
| CN101717677A (en) | Method for preparing biological natural gas from marsh gas | |
| CN105126530A (en) | Coking exhaust gas purification method | |
| CN203429144U (en) | Low-temperature methanol washing device with high CO2 yield | |
| CN102784552B (en) | Combined processing system and method for sulfur, nitrogen-containing waste water and exhaust gas in hydrogenation refining process | |
| CN106318475A (en) | Improvement technology of low temperature methanol washing | |
| CN105169879B (en) | Coked tail gas processing method | |
| CN201756525U (en) | Polybutadiene rubber alkaline washing device system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141008 Effective date of abandoning: 20150729 |
|
| RGAV | Abandon patent right to avoid regrant |