CN107601436A - The device of Recovered sulphur in a kind of tail gas - Google Patents
The device of Recovered sulphur in a kind of tail gas Download PDFInfo
- Publication number
- CN107601436A CN107601436A CN201711102630.XA CN201711102630A CN107601436A CN 107601436 A CN107601436 A CN 107601436A CN 201711102630 A CN201711102630 A CN 201711102630A CN 107601436 A CN107601436 A CN 107601436A
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- China
- Prior art keywords
- sections
- converter
- section
- condenser
- condensers
- 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.)
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000005864 Sulphur Substances 0.000 title claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 38
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 29
- 239000002918 waste heat Substances 0.000 claims abstract description 22
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 21
- 239000011593 sulfur Substances 0.000 claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 claims abstract description 18
- 238000003860 storage Methods 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- 230000008021 deposition Effects 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000007664 blowing Methods 0.000 claims abstract description 6
- 239000003054 catalyst Substances 0.000 claims description 11
- 238000011049 filling Methods 0.000 claims description 7
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 18
- 230000008901 benefit Effects 0.000 abstract description 6
- -1 combustion furnace Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 17
- 235000001508 sulfur Nutrition 0.000 description 16
- 230000008569 process Effects 0.000 description 15
- 238000000151 deposition Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a kind of device of Recovered sulphur in tail gas, including combustion furnace, waste heat boiler, converter, heat exchanger, condenser, trap and molten sulfur storage tank, triple valve, the other both ends connection combustion furnace of triple valve and one section of heat exchanger are set on exhaust pipe；The combustion furnace afterbody connects waste heat boiler, and waste heat boiler connects one section of condenser；Condenser, heat exchanger, converter are sequentially connected, and converter outlet connects condenser through heat exchanger shell pass；Condenser is also connected with trap, and the molten sulfur in trap is collected to molten sulfur storage tank through pipeline is unified；The converter is also connected with steam blowing equipment, prevents sulphur deposition and Carbon deposition on beds.The present invention uses shunting and multi-stage conversion, the conversion ratio of hydrogen sulfide is brought up to more than 99.5%, thoroughly solves the problems, such as that hydrogen sulfide conversion ratio is low, obtains good economic benefit and social benefit, and the circulation comprehensive for realizing resource utilizes.
Description
Technical field
The present invention relates to sulphur recovery and vent gas treatment field, a kind of device of Recovered sulphur in tail gas is specifically related to.
Background technology
Rubber vulcanization accelerator M can produce accessory substance hydrogen sulfide in process of production, and the material is after claus oven is handled
Sulphur can be converted into, Crouse's Recovered sulphur process units of Rubber Chemicals Industries practical application is more extensive simple and crude at present, more
For one stage catalyzing conversion, two level or three-level condensation cooling, one-level tail gas liquid separation trap Recovered sulphur, hydrogen sulfide conversion ratio is low,
And need to consume substantial amounts of steam in the process, many waste gas waste water are produced, simultaneously because H2S/SO2Ratio Analysis instrument counts sometimes
It is big according to fluctuation, it can not accurately control H2S and SO2Proportioning so that hydrogen sulfide can not be recycled fully, and hydrogen sulfide is unconverted to be arranged
Put to air, not only cause the waste of raw material, resource is not fully utilized, and can cause environmental pollution, to the person and life
State forms harm.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the invention provides a kind of energy consumption is low, the rate of recovery is high, tail gas energy is up to standard
The device of Recovered sulphur in the tail gas of discharge.
The technical solution adopted by the present invention is：The device of Recovered sulphur in a kind of tail gas, including combustion furnace, waste heat boiler,
Converter, heat exchanger, condenser, trap and molten sulfur storage tank, triple valve is set to shunt hydrogen sulfide on exhaust pipe, triple valve
Other both ends connect combustion furnace and one section of heat exchanger respectively；The combustion furnace afterbody connects waste heat boiler, and head passes through air
Pipeline connects air blower, and top connects two sections of heat exchangers and three sections of heat exchangers through pipeline；The waste heat boiler connects one section of condensation
Device；One section of condenser, one section of heat exchanger, one-level converter are sequentially connected；The one-level converter outlet is through one section of heat exchange
Device shell side connects two sections of condensers；
Two sections of condensers, two sections of heat exchangers, secondary reformers are sequentially connected；The secondary reformer outlet is through two sections of heat exchange
Device shell side connects three sections of condensers；
Three sections of condensers, three sections of heat exchangers, three-level converter are sequentially connected；The three-level converter outlet is through three sections of heat exchange
Device shell side connects four sections of condensers；
One section of condenser, two sections of condensers, three sections of condensers, four sections of condensers are connected respectively one section of trap, two
Section trap, three sections of traps, four sections of traps；Molten sulfur in the trap is collected to molten sulfur storage tank through pipeline is unified；
The converter is also connected with steam blowing equipment, and the sulphur in converter on beds is removed using superheated steam and is deposited
And Carbon deposition；Temperature-indicating instrument is also set up on the converter, real-time monitoring temperature, prevents catalyst aging.
Further, the three-level converter sets two beds up and down；The upper bed layer fills hydrogenating reduction
Catalyst, lower bed layer filling catalyst for selective oxidation.
Further, the waste heat boiler sets boiler water filling inlet pipeline and higher pressure steam outlet pipeline, its waste heat hair
Raw 0.4-0.6MPa saturated vapors, are used for workshop.
Further, pipeline sets heat-insulation layer and acid and alkali-resistance corrosion-resistant coating in described device.
Further, gas flow controller is respectively provided with the exhaust pipe and air duct, for controlling through air
Pipeline enters the air with hydrogen sulfide equivalent.
The beneficial effects of the invention are as follows：By steam blowing equipment, prevent beds Carbon deposition and sulphur from depositing, improve
Reaction rate；Using acid and alkali-resistance anti-corrosion pipe, service life of equipment is improved；Using shunting and multi-stage conversion, at utmost
Realize that hydrogen sulfide converts completely, the conversion ratio of hydrogen sulfide is brought up to more than 99.5%, it is low thoroughly to solve hydrogen sulfide conversion ratio
The problem of, good economic benefit and social benefit are obtained, the circulation comprehensive for realizing resource utilizes.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1. combustion furnace, 2. waste heat boilers, 3. one-level converters, 4. secondary reformers, 5. three-level converters, 6. 1
Section heat exchanger, 7. 2 sections of heat exchangers, 8. 3 sections of heat exchangers, 9. 1 sections of condensers, 10. 2 sections of condensers, 11. 3 sections of condensers,
12. four sections of condensers, 13. 1 sections of traps, 14. 2 sections of traps, 15. 3 sections of traps, 16. 4 sections of traps, 17. molten sulfurs
Storage tank, 18. air blowers, 19. exhaust pipes, 20. air ducts.
Embodiment
In order to be more clearly understood that technical scheme, the present invention is further described below in conjunction with the accompanying drawings.
The device of Recovered sulphur in a kind of tail gas as shown in Figure 1, including combustion furnace 1, waste heat boiler 2, converter, heat exchange
Device, condenser, trap and molten sulfur storage tank 17；
The converter sets three-level, respectively one-level converter 3, secondary reformer 4, three-level converter 5；The heat exchanger is set
Put three-level, respectively one section of 6, two sections of heat exchanger, 7, three sections of heat exchanger heat exchanger 8；The condenser setting level Four, respectively one
Section 9, two sections of condenser, 10, three sections of condenser, 11, four sections of condensers 12 of condenser；
Triple valve is set to shunt hydrogen sulfide on exhaust pipe 19, the other both ends of triple valve connect combustion furnace 1 and one section respectively
Heat exchanger 6；The afterbody of combustion furnace 1 connects waste heat boiler 2, and head connects air blower 18 by air duct 20, and top is through pipe
Road connects two sections of heat exchangers 7 and three sections of heat exchangers 8；The waste heat boiler 2 connects one section of condenser 9；One section of condenser 9,
One section of heat exchanger 6, one-level converter 3 are sequentially connected；The one-level converter 3 exports connects two sections through one section of shell side of heat exchanger 6
Condenser 10；
Described two sections of condensers 10, two sections of heat exchangers 7, secondary reformers 4 are sequentially connected；The secondary reformer 4 is exported through two
Section heat exchanger 7 shell side connects three sections of condensers 11；
Described three sections of condensers 11, three sections of heat exchangers 8, three-level converters 5 are sequentially connected；The three-level converter 5 is exported through three
Section heat exchanger 8 shell side connects four sections of condensers 12；
Described 9, two sections of one section of condenser, 10, three sections of condenser, 11, four sections of condensers 12 of condenser are connected respectively one section and caught
13, two sections of storage, 14, three sections of trap, 15, four sections of traps 16 of trap；Molten sulfur in the trap is received through pipeline is unified
Collect to molten sulfur storage tank 17；
The converter is also connected with steam blowing equipment, and the sulphur in converter on beds is removed using superheated steam and is deposited
And Carbon deposition；Temperature-indicating instrument is also set up on the converter, real-time monitoring temperature, prevents catalyst aging.
Preferably, the three-level converter 5 sets two beds up and down；The upper bed layer filling hydrogenating reduction is urged
Agent, by the non-H in Process Gas in the presence of hydrogenating reduction catalyst2S sulfur-containing compound such as SO2、CS2Deng all hydrogenation
For H2S, lower bed layer filling catalyst for selective oxidation, by unnecessary H2S is oxidized to elementary sulfur.
Preferably, the waste heat boiler 2 sets boiler water filling inlet pipeline and higher pressure steam outlet pipeline, and its waste heat occurs
0.4-0.6MPa saturated vapors, used for workshop.
Preferably, pipeline sets heat-insulation layer and acid and alkali-resistance corrosion-resistant coating in described device.
Preferably, gas flow controller is respectively provided with the exhaust pipe 19 and air duct 20, for controlling through sky
Feed channel 20 enters the air with hydrogen sulfide equivalent.
Operation principle：Hydrogen sulfide tail gas shunts through exhaust pipe 19, and 1/3 hydrogen sulfide tail gas enters combustion furnace 1, in combustion furnace
Equivalent air is passed through by air blower 18 in 1 so that hydrogen sulfide completely burned, while according to reaction of Salmon-Saxl oxygen demand combination H processed2S/
SO2In-line analyzer feedback data, makes H2SO is generated after S burnings2Amount meet H2S/SO2For theoretical value 2；Remaining 2/3 hydrogen sulfide
Tail gas then enters one section of heat exchanger 6；
The Process Gas that spontaneous combustion stove 1 is discharged, partly enters two sections of heat exchangers, 7, three sections of heat exchangers 8 by high-temp mixing valve, remaining
Into waste heat boiler 2,0.4-0.6MPa saturated vapor occurs for the waste heat of waste heat boiler 2, while Process Gas temperature is down to 300-
380 DEG C, 160 DEG C or so are cooled to subsequently into one section of tube side of condenser 9, exports, condenses out in one section of tube side of condenser 9
Molten sulphur is separated with Process Gas, and one section of trap 13 is exited into from bottom；The Process Gas of the one section of tube side of condenser 9 outlet,
Enter one section of heat exchanger 6 after being mixed by high-temp mixing valve with remaining 2/3 hydrogen sulfide tail gas, temperature reach more than 240 DEG C it is laggard
Enter one-level converter 3, in the presence of catalyst, the H in Process Gas2S and SO2Claus reactions are carried out, are converted into elemental sulfur；
The Process Gas come out from one-level converter 3 enters one section of shell side of heat exchanger 6, enters back into two sections of tube sides of condenser 10, two sections
Low-pressure saturated steam occurs for condensed water in the shell side of condenser 10, and elemental sulfur is condensed into molten sulfur, and molten sulfur enters two sections of traps
14；The Process Gas temperature of the two sections of tube side of condenser 10 outlets passes through the mistake in high-temp mixing valve and combustion furnace 1 at 160 DEG C or so
Enter two sections of heat exchangers 7 after the mixing of journey gas, temperature enters secondary reformer 4 after reaching 200-230 DEG C, in the effect of catalyst
Under, make remaining H in Process Gas2S and SO2Catalyzed conversion further occurs；
The exit procedure gas of secondary reformer 4 occurs low-pressure saturated steam through three sections of condensers 11 and gaseous elemental sulphur is condensed into liquid
Sulphur, molten sulfur are trapped by three sections of traps 15, are passed through by the Process Gas that three sections of condensers 11 come out in high-temp mixing valve and combustion furnace 1
Process Gas mixing after enter three sections of heat exchangers 8, be heated to 200 DEG C or so entrance three-level converters 5, make remaining in Process Gas
H2S and SO2Catalyzed conversion further occurs, the exit procedure gas of three-level converter 5 occurs 0.1MPa saturations through four sections of condensers 12 and steamed
Vapour, and elementary gas sulphur is condensed into molten sulfur, the molten sulfur of four sections of condensers 12, which is captured, is segregated into four sections of traps 16；One section
Molten sulfur unification in 13, two sections of trap, 14, three sections of trap, 15, four sections of traps 16 of trap is collected to molten sulfur storage tank 17,
Tail gas is discharged after burning by chimney.
The present invention prevents beds Carbon deposition and sulphur from depositing, improves reaction rate by steam blowing equipment；Utilize
Acid and alkali-resistance anti-corrosion pipe, improve service life of equipment；Using shunting and multi-stage conversion, farthest realize that hydrogen sulfide is complete
Full conversion, makes the conversion ratio of hydrogen sulfide bring up to more than 99.5%, thoroughly solves the problems, such as that hydrogen sulfide conversion ratio is low, obtains good
Good economic benefit and social benefit, the circulation comprehensive for realizing resource utilize.
Described above is only the better embodiment of the present invention, therefore all constructions according to described in present patent application scope,
The equivalent change or modification that feature and principle are done, is included in the range of present patent application.
Claims (5)
1. the device of Recovered sulphur in a kind of tail gas, including combustion furnace（1）, waste heat boiler（2）, converter, heat exchanger, condensation
Device, trap and molten sulfur storage tank（17）, it is characterised in that：Exhaust pipe（19）Upper setting triple valve shunts hydrogen sulfide, threeway
The other both ends of valve connect combustion furnace respectively（1）With one section of heat exchanger（6）；The combustion furnace（1）Afterbody connects waste heat boiler
（2）, head passes through air duct（20）Connect air blower（18）, top connects two sections of heat exchangers through pipeline（7）With three sections of heat exchange
Device（8）；The waste heat boiler（2）Connect one section of condenser（9）；One section of condenser（9）, one section of heat exchanger（6）, one-level turn
Change device（3）It is sequentially connected；The one-level converter（3）Outlet is through one section of heat exchanger（6）Shell side connects two sections of condensers（10）；
Two sections of condensers（10）, two sections of heat exchangers（7）, secondary reformer（4）It is sequentially connected；The secondary reformer（4）
Outlet is through two sections of heat exchangers（7）Shell side connects three sections of condensers（11）；
Three sections of condensers（11）, three sections of heat exchangers（8）, three-level converter（5）It is sequentially connected；The three-level converter（5）
Outlet is through three sections of heat exchangers（8）Shell side connects four sections of condensers（12）；
One section of condenser（9）, two sections of condensers（10）, three sections of condensers（11）, four sections of condensers（12）Correspond to and connect respectively
Connect one section of trap（13）, two sections of traps（14）, three sections of traps（15）, four sections of traps（16）；In the trap
Molten sulfur is collected to molten sulfur storage tank through pipeline is unified（17）；
The converter is also connected with steam blowing equipment, and the sulphur in converter on beds is removed using superheated steam and is deposited
And Carbon deposition；Temperature-indicating instrument is also set up on the converter, real-time monitoring temperature, prevents catalyst aging.
2. the device of Recovered sulphur in tail gas according to claim 1, it is characterised in that：The three-level converter（5）If
Put two beds up and down；The upper bed layer fills hydrogenating reduction catalyst, lower bed layer filling catalyst for selective oxidation.
3. the device of Recovered sulphur in tail gas according to claim 1, it is characterised in that：The waste heat boiler（2）Set
0.4-0.6MPa saturated vapors occur for boiler water filling inlet pipeline and higher pressure steam outlet pipeline, its waste heat, are used for workshop.
4. the device of Recovered sulphur in tail gas according to claim 1, it is characterised in that：Pipeline, which is set, in described device protects
Warm layer and acid and alkali-resistance corrosion-resistant coating.
5. the device of Recovered sulphur in tail gas according to claim 1, it is characterised in that：The exhaust pipe（19）And sky
Feed channel（20）On be respectively provided with gas flow controller, for control through air duct（20）Into the sky with hydrogen sulfide equivalent
Gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711102630.XA CN107601436A (en) | 2017-11-10 | 2017-11-10 | The device of Recovered sulphur in a kind of tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711102630.XA CN107601436A (en) | 2017-11-10 | 2017-11-10 | The device of Recovered sulphur in a kind of tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107601436A true CN107601436A (en) | 2018-01-19 |
Family
ID=61086297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711102630.XA Withdrawn CN107601436A (en) | 2017-11-10 | 2017-11-10 | The device of Recovered sulphur in a kind of tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107601436A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112337280A (en) * | 2019-08-09 | 2021-02-09 | 中国石化工程建设有限公司 | Claus flow-dividing sulfur recovery system and process |
| CN114684792A (en) * | 2020-12-31 | 2022-07-01 | 宁波博汇化工科技股份有限公司 | Sulfur-containing tail gas recovery device |
-
2017
- 2017-11-10 CN CN201711102630.XA patent/CN107601436A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112337280A (en) * | 2019-08-09 | 2021-02-09 | 中国石化工程建设有限公司 | Claus flow-dividing sulfur recovery system and process |
| CN114684792A (en) * | 2020-12-31 | 2022-07-01 | 宁波博汇化工科技股份有限公司 | Sulfur-containing tail gas recovery device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180119 |