CN203903986U - Device for recycling ammonia gas through stripping sour water - Google Patents
Device for recycling ammonia gas through stripping sour water Download PDFInfo
- Publication number
- CN203903986U CN203903986U CN201420329488.8U CN201420329488U CN203903986U CN 203903986 U CN203903986 U CN 203903986U CN 201420329488 U CN201420329488 U CN 201420329488U CN 203903986 U CN203903986 U CN 203903986U
- Authority
- CN
- China
- Prior art keywords
- ammonia
- water
- pipeline
- condenser
- sulphur
- 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.)
- Expired - Lifetime
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 122
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000004064 recycling Methods 0.000 title claims abstract description 9
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 60
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 21
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000010791 quenching Methods 0.000 claims abstract description 19
- 239000005864 Sulphur Substances 0.000 claims abstract description 11
- 230000000171 quenching effect Effects 0.000 claims abstract description 8
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 9
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 5
- 230000002378 acidificating effect Effects 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- SEPPVOUBHWNCAW-FNORWQNLSA-N (E)-4-oxonon-2-enal Chemical compound CCCCCC(=O)\C=C\C=O SEPPVOUBHWNCAW-FNORWQNLSA-N 0.000 description 1
- LLBZPESJRQGYMB-UHFFFAOYSA-N 4-one Natural products O1C(C(=O)CC)CC(C)C11C2(C)CCC(C3(C)C(C(C)(CO)C(OC4C(C(O)C(O)C(COC5C(C(O)C(O)CO5)OC5C(C(OC6C(C(O)C(O)C(CO)O6)O)C(O)C(CO)O5)OC5C(C(O)C(O)C(C)O5)O)O4)O)CC3)CC3)=C3C2(C)CC1 LLBZPESJRQGYMB-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004231 fluid catalytic cracking Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Physical Water Treatments (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
The utility model discloses a device for recycling ammonia gas through stripping sour water. The device comprises a sour water stripping tower, condensers, an ammonia gas cooler, liquid separation tanks, an ammonia liquid tank and a sulphur quenching device, wherein an ammonia side-drawing pipeline of the sour water stripping tower is sequentially connected with the first-stage condenser, the first-stage liquid separation tank, the second condenser, the second-stage liquid separation tank, the ammonia gas cooler, the third-stage liquid separation tank and the ammonia liquid tank, and a pipeline for connecting the top of the second-stage liquid separation tank and the ammonia gas cooler is provided with a branch ammonia gas connecting pipeline; the sulphur quenching device comprises a sulphur device quenching tower, a quenching water pump and a quenched water cooler which are formed into a quenched water circulating system through a tower bottom-drawing pipeline; an ammonia gas pipeline is connected in parallel with the quenched water circulating system. According to the utility model, ammonia gas separated by a sour water stripping device can be effectively recycled and used as quenched water to replace ammonia water for a sulphur device, so that the problem of treatment cost brought by injecting ammonia water to the sulphur device is solved, and the cost for treating sour water is reduced; in addition, the device is simple in process design and convenient to operate.
Description
Technical field
The utility model relates to sour water stripping ammonia recycling field, specifically the device of isolated ammonia recycling in a kind of acidic water stripping device field.
Background technology
Sulphur tail gas processed in sulphur production advanced hydrogenator, vapour generator in the time processing cool to 170 DEG C, then enter quench tower and are chilled to 40 DEG C.Quenched water in quench tower recycles after pump extraction is cooling, and unnecessary quenched water send stripping raw material water tank through variable valve.The effect of quench tower is cooling to H2S, so water quality is acidity, if pH value is always on the low side, equipment and pipeline corrosion are serious.Therefore need to inject ammoniacal liquor and neutralize, keep pH value between 7.5-8.5, prevent that weakly acidic condition from causing the corrosion of pipeline and equipment.Ammoniacal liquor is from acidic water stripping device ammonia water tank at present, and ammonia water tank enters quenched water pump intake pipeline place by DN20 pipeline after aqua ammonia pump is extracted out, according to the injection rate of quenched water pH value on-line detector control ammoniacal liquor.Along with the injection rate of ammoniacal liquor strengthens, too much note ammonia causes the liquid level continuous decrease of stripping ammonia water pot, can only supplement fresh water for a long time and maintain the liquid level of tank.A large amount of moisturizings constantly reduces ammonia concn, and the reduction of ammonia concn forces quenched water can only strengthen note ammonia vol, finally forms vicious cycle, causes the water yield of stripping raw material water tank excessive, has increased the weight of the load of acidic water stripping device.Such as quenched water in certain technical process normally the amount of sending outside at 700--800 ㎏/h, but existing approximately 3400 ㎏/h of the amount of sending outside, 2600 unnecessary ㎏ water are the ammoniacal liquor injecting.Can find out in sum, traditional technique problem that effectively solving device exists with ammonia neutralization quenched water pH value, only finds better scheme to substitute.
The sour water that in petroleum chemical enterprise, heavy oil fluid catalytic cracking and hydrogen manufacturing coking produce is normally by soul water stripper processing, and the technique that adopts side line to take out ammonia reclaims ammonia, and wherein secondary divides the ammonia concentration of flow container in 85% left and right.The about 0.2MPa of pressure left and right, and the concentration of ammonia water tank all (more than 16% is conventionally taken out) below 16% at present.
To sum up, in existing quenched water, increased the weight of the load of acidic water stripping device with technique; Waste fresh water resource; Quenched water pH value on the low side causes pipeline and equipment corrosion always; And by the side of soul water stripper take out ammonia use above-mentioned in and technique, also not relevant technology of prior art.
Utility model content
The purpose of this utility model is exactly the defect existing for prior art, and a kind of simple in structure, easy to operate and acidic water stripping device Ammonia recovery re-use device that organic efficiency is high is provided.
The technical solution of the utility model is: comprise sour water gas stripping column, condenser, ammonia cooler, point flow container, ammoniacal liquor tank and sulphur quenching apparatus; Described condenser comprises first-stage condenser and secondary condenser, described point of flow container comprises that one-level divides flow container, secondary to divide flow container and three fraction flow containers, the side line ammonia extraction pipeline of described sour water gas stripping column connects first-stage condenser successively, one-level divides flow container, secondary condenser, secondary to divide flow container, ammonia cooler, three fraction flow containers and ammoniacal liquor tank, and described secondary separatory tank top is provided with branch with the connection line of ammonia cooler and is connected ammonia pipeline; Described sulphur quenching apparatus comprises sulphur unit quench tower, chilling water pump and quenched water water cooler, and three is by extracting the pipeline composition quenched water recycle system out at the bottom of tower; Described ammonia pipeline and the quenched water recycle system also connect.
Such scheme can further be improved to:
Described ammonia pipeline is connected to the ingress of chilling water pump.
In described first-stage condenser, secondary condenser, be the raw water of sour water air-lift device with the medium of ammonia generation heat exchange.
The utility model adopt from the ammonia of point flow container concentration 85% directly in and quenched water improve pH value, only need with little ammonia, and the chilling water yield can not strengthen too much, and ammonia is very easily water-soluble, solubleness 1:700, so can there is not cavitation in pump.The steam stripped acid water yield of minimizing sour water that can be to a certain degree after transformation, alleviates the high situation of the current acid water yield; And after transformation, quenched water pH value can bring up to 8, and quenched water equipment and pipeline corrosion problem are stopped; Approximately 20000 tons, the few treatment and purification water of sewage work after technological transformation, cost of sewage disposal decreases; After technological transformation, be more conducive to the smooth running of equipment and the safety in production of device.Compared with prior art, the utility model is simple in structure, easy to operate.Divide flow container to separate the ammonia producing by reclaiming acidic water stripping device secondary, replace ammoniacal liquor to inject the quench tower of sulphur unit, recycle, possess good application value.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
In figure: 1-soul water stripper, 2-side line ammonia extraction pipeline, 3-first-stage condenser, 4-one-level are extracted pipeline, 12-chilling water pump, 13-quenched water water cooler, 14-ammonia control valve, 15-ammonia pipeline out at the bottom of dividing flow container, 5-secondary condenser, 6-secondary to divide flow container, 7-ammonia cooler, 8-tri-fraction flow containers, 9-ammoniacal liquor tank, 10-sulphur unit quench tower, 11-tower.
Embodiment
With reference to Fig. 1, a kind of acidic water stripping device Ammonia recovery re-use device, comprises that soul water stripper 1 and side line ammonia extracts pipeline 2, first-stage condenser 3, one-level out and extract pipeline 11, chilling water pump 12, quenched water water cooler 13, ammonia control valve 14, ammonia pipeline 15 out at the bottom of dividing flow container 4, secondary condenser 5, secondary to divide flow container 6, ammonia cooler 7, three fraction flow containers 8, ammoniacal liquor tank 9, sulphur unit quench tower 10, tower
Idiographic flow is as follows: soul water stripper 1 is extracted pipeline 2 out by side line ammonia and extracted ammonia out, divide flow container 4, secondary condenser 5, secondary to divide flow container 6, ammonia cooler 7, three fraction flow containers 8 with this through first-stage condenser 3, one-level, flow into ammoniacal liquor tank 9, first-stage condenser 3 and secondary condenser 5 are all that the raw water (being sour water) of ammonia and acidic water stripping device carries out heat exchange.Divide flow container 6 tops ammonia out by secondary, enter the tower of sulphur unit quench tower 10 belows through ammonia pipeline 15 at the bottom of, extract pipeline 11 out, ammonia entrance is positioned at before chilling water pump 12, by chilling water pump 12, flows into sulphur unit quench tower 10 through quenched water water cooler 13.Quenched water in quench tower is extracted out after cooling and is recycled through chilling water pump 12.
According to the injection rate of quenched water pH value on-line detector control ammonia, flow has ammonia by-pass valve control 14 to control ammonia injection rate.
To sum up, sour water stripping ammonia re-use device in the utility model carries out efficient recovery recycling to the isolated ammonia of acidic water stripping device, can replace sulphur unit ammoniacal liquor as quenched water, solve the processing cost that sulphur unit note ammoniacal liquor brings, reduced the cost of disposal of sour water simultaneously, simple, the easy to operate advantage of technological design, possesses good application value.
For those skilled in the art, do not departing under the prerequisite of the utility model principle, likely to concrete size, or local structure make some improvements and modifications, and these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a device for sour water stripping ammonia recycling, is characterized in that: comprise sour water gas stripping column, condenser, ammonia cooler, point flow container, ammoniacal liquor tank and sulphur quenching apparatus; Described condenser comprises first-stage condenser and secondary condenser, described point of flow container comprises that one-level divides flow container, secondary to divide flow container and three fraction flow containers, the side line ammonia extraction pipeline of described sour water gas stripping column connects first-stage condenser successively, one-level divides flow container, secondary condenser, secondary to divide flow container, ammonia cooler, three fraction flow containers and ammoniacal liquor tank, and described secondary separatory tank top is provided with branch with the connection line of ammonia cooler and is connected ammonia pipeline; Described sulphur quenching apparatus comprises sulphur unit quench tower, chilling water pump and quenched water water cooler, and three is by extracting the pipeline composition quenched water recycle system out at the bottom of tower; Described ammonia pipeline and the quenched water recycle system also connect.
2. the device of sour water stripping ammonia according to claim 1 recycling, is characterized in that: described ammonia pipeline is connected to the ingress of chilling water pump.
3. the device of sour water stripping ammonia according to claim 1 recycling, is characterized in that: in described first-stage condenser, secondary condenser, be the raw water of sour water air-lift device with the medium of ammonia generation heat exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329488.8U CN203903986U (en) | 2014-06-20 | 2014-06-20 | Device for recycling ammonia gas through stripping sour water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329488.8U CN203903986U (en) | 2014-06-20 | 2014-06-20 | Device for recycling ammonia gas through stripping sour water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203903986U true CN203903986U (en) | 2014-10-29 |
Family
ID=51778276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420329488.8U Expired - Lifetime CN203903986U (en) | 2014-06-20 | 2014-06-20 | Device for recycling ammonia gas through stripping sour water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203903986U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248564A (en) * | 2018-11-15 | 2019-01-22 | 山东海科化工集团有限公司 | A kind of recycle device and technique of the ammonia liquor that petrochemical industry refinery acidity water treatment facilities generates |
| CN114212841A (en) * | 2021-11-15 | 2022-03-22 | 北方华锦化学工业股份有限公司 | Method for quickly and accurately positioning ammonia enrichment area of acid water stripper |
-
2014
- 2014-06-20 CN CN201420329488.8U patent/CN203903986U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248564A (en) * | 2018-11-15 | 2019-01-22 | 山东海科化工集团有限公司 | A kind of recycle device and technique of the ammonia liquor that petrochemical industry refinery acidity water treatment facilities generates |
| CN114212841A (en) * | 2021-11-15 | 2022-03-22 | 北方华锦化学工业股份有限公司 | Method for quickly and accurately positioning ammonia enrichment area of acid water stripper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |