CN207881348U - The low temperature separation unit of H2S - Google Patents
The low temperature separation unit of H2S Download PDFInfo
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- CN207881348U CN207881348U CN201720586660.1U CN201720586660U CN207881348U CN 207881348 U CN207881348 U CN 207881348U CN 201720586660 U CN201720586660 U CN 201720586660U CN 207881348 U CN207881348 U CN 207881348U
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Abstract
A kind of H2The low temperature separation unit of S, mainly include unstripped gas compression unit and separation unit cold box unit two parts, the unstripped gas compression unit inlet duct connection low-temp methanol wash come contain H2Other similar gases in S sour gas and petrochemical industry, coal chemical industry after above-mentioned gas is compressed to certain pressure by the unstripped gas compression unit, connects through pipeline and are sent into separation unit cold box unit；The separation unit cold box unit includes main heat exchanger, the first heavy hydrocarbon knockout drum, light component rectifying column, H2S high-pressure rectification towers and H2S low-pressure distillation towers；Main heat exchanger and the first heavy hydrocarbon knockout drum in the pipeline connection separation unit cold box unit, the gaseous phase outlet tieback main heat exchanger of the first heavy hydrocarbon knockout drum upper end, and be connected to light component rectifying column feed pipe in the outlet of the main heat exchanger；The light component light component rectifying tower top gaseous is thick carbon dioxide gas, recycles cold through main heat exchanger re-heat by pipeline, then goes out battery limit (BL) by pipeline；It has the characteristics that it is relatively simple for process, easy to operate, operate steadily, be safe and reliable.
Description
Technical field
The utility model relates to a kind of H2The cryogenic rectification separator of S, in particular for concentrating and purifying low temperature
What methanol was washed contains H2The cryogenic rectification separation dress of H2S in other similar gases in S sour gas and petrochemical industry, coal chemical industry
It sets, belongs to H2The azeotropic cryogenic rectification technical field of S and propane.
Background technology
What low-temp methanol was washed contains H2Other similar gases in S sour gas and petrochemical industry, coal chemical industry are usually desulfuration
Retracting device is realized clean manufacturing, is reached and turned harm into good, turned waste into wealth using process Recovered sulphur appropriate, is reduced dirty
Dye, the purpose of environmental protection, and meet product quality requirement simultaneously, corrosion is reduced, realization device long- period safety production etc. is all
Multiple requirements.But due to the variation of the market demand, sulfur recovery unit by-product sulfuric acid sales difficulty, added value is low, and
H2S has very high economic value as the unstripped gas of DMDS and DMSO, therefore is recycled using certain process means
H2S becomes a kind of very valuable selection.
Invention content
The purpose of the utility model is to overcome the shortcomings of the prior art, and provide a kind of relatively simple for process, behaviour
Work facilitate, operate steadily, the cryogenic rectification separator of safe and reliable H2S.
The purpose of this utility model is completed by following technical solution, a kind of H2The low temperature separation unit of S, mainly
Including unstripped gas compression unit and separation unit cold box unit two parts, unstripped gas compression unit inlet duct connection is low
What warm methanol was washed contains H2Other similar gases in S sour gas and petrochemical industry, coal chemical industry, the unstripped gas compression unit
After above-mentioned gas is compressed to certain pressure, is connected through pipeline and be sent into separation unit cold box unit；
The separation unit cold box unit includes main heat exchanger, the first heavy hydrocarbon knockout drum, light component rectifying column, H2S high
Press rectifying column and H2S low-pressure distillation towers；Main heat exchanger and first in the pipeline connection separation unit cold box unit
Heavy hydrocarbon knockout drum, the gaseous phase outlet tieback main heat exchanger of the first heavy hydrocarbon knockout drum upper end, and going out in the main heat exchanger
Mouth is connected to light component rectifying column feed pipe；
The light component light component rectifying tower top gaseous is thick carbon dioxide gas, by pipeline through main heat exchanger re-heat
Cold is recycled, battery limit (BL) is then gone out by pipeline；Light component rectifying tower bottom liquid phase passes through pipeline and H2S liquid pumps are connected to, outlet
Material passes through pipeline and H2S high-pressure rectification towers are connected to；
The H2S high-pressure rectification towers are to coagulate rectifying column, H entirely2The liquid phase warp knuckle that S high-pressure rectification tower tower top pipes are isolated
Flow valve, pipeline and H2S low-pressure distillation towers are connected to；H2S high-pressure rectification tower tower bottom liquids communicate piping, throttle valve, pipeline and second
Heavy hydrocarbon knockout drum is connected to；
The H2S low-pressure distillation towers are to coagulate rectifying column, H entirely2The liquid phase that S low-pressure distillation tower tower top pipes are isolated is through H2S
Liquid pump, throttle valve, pipeline and H2S high-pressure rectification towers are connected to；H2S low-pressure distillation towers bottom of tower liquid phase is through pipeline, H2S product pumps, valve
Door, pipeline are connected to main heat exchanger, after main heat exchanger recycles cold, go out battery limit (BL) by pipeline.
As preferred：The light component rectifying column is provided with overhead condenser and tower bottom reboiler, overhead condenser heat
Stream stream femoral canal road is connected to light component rectifying column top gas phase pipeline, overhead reflux pipeline, cold flow pipeline and liquefied ammonia refrigeration system
Connection, this overhead condenser is using liquefied ammonia thermal siphon condenser；Tower bottom reboiler is placed in light component rectifying column, for inside
Thermosiphon reboiler, hot-fluid stream stock are connected to steam condensate by pipeline, and heat is provided for tower bottom reboiler by steam condensate；
The H2S high-pressure rectification towers are provided with overhead condenser and tower bottom reboiler, overhead condenser hot-fluid stream femoral canal
Road and H2S high-pressure rectification tower top gas phases pipeline, pipeline connection, cold flow pipeline are connected to recirculated cooling water pipeline；It boils again bottom of tower
Device is placed in H2It is internal thermosiphon reboiler in S high-pressure rectification towers, hot-fluid stream stock is connected to vapor pipeline, is by vapor
Tower bottom reboiler provides heat；
The second heavy hydrocarbon knockout drum is knockout drum, and the second heavy hydrocarbon knockout drum tank deck gas phase goes out battery limit (BL) through pipeline
Sulfur recovery；Second heavy hydrocarbon knockout drum tank bottom liquid phase goes out battery limit (BL) duplicate removal hydrocarbon storage tank through pipeline；
The H2S low-pressure distillation towers are provided with overhead condenser and tower bottom reboiler, overhead condenser hot-fluid stream femoral canal
Road and H2S low-pressure distillation tower top gas phases pipeline, pipeline connection, cold flow pipeline are connected to liquefied ammonia refrigeration system, overhead condenser
Using liquefied ammonia thermal siphon condenser；Tower bottom reboiler is placed in H2It is internal thermosiphon reboiler, heat in S low-pressure distillation towers
Stream stream stock is connected to chilled water pipeline, and heat is provided for tower bottom reboiler by chilled water return water.
As preferred：The ammonia compressor, ammonia compressor are by the gas ammonia after overhead condenser, overhead condenser evaporation
It is compressed to the minimum pressure of ammonia refrigeration system needs, returns to ammonia refrigeration system；
The main heat exchanger, light component rectifying column tower top condenser, H2S high-pressure rectification towers overhead condenser, H2S low pressure
Rectifying column tower bottom reboiler, H2S low-pressure distillation tower overhead condensers are aluminum plate-fin heat exchanger；
The light component rectifying column, H2S high-pressure rectification towers, H2S low-pressure distillation towers are stuffing rectification column.
The utility model have the characteristics that it is relatively simple for process, easy to operate, operate steadily, be safe and reliable.
Description of the drawings
Fig. 1 is the attachment structure schematic diagram of the utility model.
Specific implementation mode
The utility model is described in detail below in conjunction with attached drawing：Shown in Fig. 1, one kind described in the utility model
H2The low temperature separation unit of S includes mainly unstripped gas compression unit I and separation unit cold box unit II two parts, the original
What the I connection low-temp methanol of inlet duct 01 of material gas compression unit was washed contains H2It is other in S sour gas and petrochemical industry, coal chemical industry
Similar gases after above-mentioned gas is compressed to certain pressure by the unstripped gas compression unit I, is connected and are sent into point through pipeline 02
From device cold box unit II；
The separation unit cold box unit II includes main heat exchanger E101, heavy hydrocarbon knockout drum D101, light component rectifying column
T101、 H2S high-pressure rectification towers T102 and H2S low-pressure distillation towers T103；The pipeline 02 connects separation unit cold box unit
Main heat exchanger E101 in II and heavy hydrocarbon knockout drum D101, the gaseous phase outlet tieback master of the upper ends heavy hydrocarbon knockout drum D101
Heat exchanger E101, and be connected to light component rectifying column T101 feed pipes 06 in the outlet of main heat exchanger E101；
The light component light component rectifying column T101 tower overhead gases are thick carbon dioxide gas, by pipeline 22 through main heat exchange
Cold is recycled in device E101 re-heats, then goes out battery limit (BL) by pipeline 23；Light component rectifying column T101 tower bottom liquids communicate piping 07 with
H2The P101 connections of S liquid pumps, outlet material pass through pipeline 08 and H2The T102 connections of S high-pressure rectification towers；
The H2S high-pressure rectification towers T102 is to coagulate rectifying column, H entirely2S high-pressure rectification tower T102 tower top pipes 13 are isolated
Liquid phase through throttle valve V05, pipeline 14 and H2The T103 connections of S low-pressure distillation towers；H2S high-pressure rectification tower T102 tower bottom liquids mutually pass through
Pipeline 27, throttle valve V04, pipeline 28 are connected to the second heavy hydrocarbon knockout drum D103；
The H2S low-pressure distillation towers T103 is to coagulate rectifying column, H entirely2S low-pressure distillation tower T103 tower top pipes 18 are isolated
Liquid phase through H2S liquid pumps P102, throttle valve V07,19,09 and H of pipeline2The T102 connections of S high-pressure rectification towers；H2S low-pressure distillation towers
The bottoms of tower T103 liquid phase is through pipeline 20, H2S product pumps P103, valve V06, pipeline 21 are connected to main heat exchanger E101, through main heat exchange
After device E101 recycling colds, battery limit (BL) is gone out by pipeline 22.
As shown in the figure, the light component rectifying column T101 is provided with overhead condenser E102 and tower bottom reboiler E103,
The hot-fluid stream femoral canal roads overhead condenser E102 connect with light component rectifying column T101 top gas phases pipeline 24, overhead reflux pipeline 23
Logical, cold flow pipeline and liquefied ammonia refrigeration system (ammonia compressor AK102, D102,33~38) connection, this overhead condenser E102 is used
Be liquefied ammonia thermal siphon condenser；Tower bottom reboiler E103 is placed in light component rectifying column T101, is internal thermosiphon reboiler,
Hot-fluid stream stock is connected to steam condensate by pipeline 31,32, and heat is provided for tower bottom reboiler E103 by steam condensate；
The H2S high-pressure rectification towers T102 is provided with overhead condenser E105 and tower bottom reboiler E104, overhead condensation
The hot-fluid stream femoral canal roads device E105 and H2S high-pressure rectification tower T102 top gas phases pipeline 10, pipeline 11,12,13 are connected to, cold flow pipe
Road is connected to recirculated cooling water pipeline 41,42；Tower bottom reboiler E104 is placed in H2In S high-pressure rectification towers T102, for internal hot rainbow
Reboiler is inhaled, hot-fluid stream stock is connected to vapor pipeline 39,40, and heat is provided for tower bottom reboiler E104 by vapor；
The second heavy hydrocarbon knockout drum D103 is knockout drum, and the second heavy hydrocarbon knockout drum D103 tank deck gas phases are through pipeline
29 go out battery limit (BL) desulfuration recycling；Second heavy hydrocarbon knockout drum D103 tank bottoms liquid phase goes out battery limit (BL) duplicate removal hydrocarbon storage tank through pipeline 30；
The H2S low-pressure distillation towers T103 is provided with overhead condenser E107 and tower bottom reboiler E106, overhead condensation
The hot-fluid stream femoral canal roads device E107 and H2S low-pressure distillation tower T103 top gas phases pipeline 15, pipeline 16,17,18 are connected to, cold flow pipe
Road and liquefied ammonia refrigeration system (ammonia compressor BK103, D104,45~50) connection, this overhead condenser E107 is using liquefied ammonia
Thermal siphon condenser；Tower bottom reboiler E106 is placed in H2It is internal thermosiphon reboiler, hot-fluid stream in S low-pressure distillation towers T103
Stock is connected to chilled water pipeline 43,44, and heat is provided for tower bottom reboiler E106 by chilled water return water.
Ammonia compressor AK102 described in the utility model, ammonia compressor K103B will be cold through overhead condenser E102, tower top
Gas ammonia after condenser E107 evaporations is compressed to the minimum pressure of ammonia refrigeration system needs, returns to ammonia refrigeration system；
The main heat exchanger E101, light component rectifying column T101 overhead condensers E102, H2S high-pressure rectification tower T102 towers
Push up condenser E105, H2S low-pressure distillation tower T103 tower bottom reboilers E106, H2S low-pressure distillation tower T103 overhead condensers E107
It is aluminum plate-fin heat exchanger；
Described light component rectifying column T101, the H2S high-pressure rectification towers T102, H2S low-pressure distillation towers T103 is filling extract rectification
Tower.
Embodiment：As shown in Figure 1, the utility model for it is a kind of concentration and purification low-temp methanol wash come contain H2S sour gas
And in other similar gases in petrochemical industry, coal chemical industry H2S cryogenic rectification separator, include mainly that unstripped gas compression is single
Member I and separation unit cold box unit II two parts, the separation unit cold box unit II includes mainly main heat exchanger E101, light
Component rectifying column T101 and its set reboiler E103 and condenser E102, H2S high-pressure rectification towers T102 and its it is set again
Boil device E104 and condenser E105, H2S low-pressure distillation towers T103 and its set reboiler E1064 and condenser E107, first
Heavy hydrocarbon knockout drum D101, the second heavy hydrocarbon knockout drum D103.Containing containing H2The normal pressure acid gas of S is through unstripped gas compression unit I
After being compressed to 1.0MPaG~2.0MPaG, enter separation unit cold box unit II through pipeline 02.
One constant temperature is cooled to through main heat exchanger E101 by pipeline 02 through I compressed unstripped gas of unstripped gas compression unit
Degree is sent into heavy hydrocarbon knockout drum 1D101 by pipeline 03, gas-liquid separation, the first heavy hydrocarbon is carried out in the first heavy hydrocarbon knockout drum D101
The liquid phase of knockout drum D101 is that heavy hydrocarbon goes out battery limit (BL) after pipeline 05, goes to next workshop section；The gas phase of heavy hydrocarbon knockout drum V101 passes through
Pipeline 04 continues cool to about -10 DEG C (variation of visual unstripped gas composition suitably adjusts) by pipeline 06 through main heat exchanger E101
It is sent into light component rectifying column T101 feed inlets.
Light component rectifying column T101 tower overhead gases are thick carbon dioxide gas, are returned through main heat exchanger E101 re-heats by pipeline 22
Cold is received, battery limit (BL) is then gone out by pipeline 23；Light component rectifying column T101 tower bottom liquids communicate piping 07 through H2S liquid pumps P101
It suppresses to 2.5MPaG~4.0MPaG, H is sent to by pipeline 082S high-pressure rectification tower T102 feed inlets.Light component rectifying column T101
Provided with overhead condenser E102 and tower bottom reboiler E103, overhead condenser E102 colds are by liquefied ammonia sweat cooling system (ammonia
Compressor AK102, D102,33~38) it provides, using liquefied ammonia thermal siphon condenser, ammonia evaporating pressure about 0.02MPaG
(can adjust according to demand)；Tower bottom reboiler E103 is placed in light component rectifying column T101, is internal thermosiphon reboiler, by
150 DEG C or so of steam condensate provides heat for tower bottom reboiler E103.
H2S high-pressure rectification towers T102 is that solidifying rectifying column, tower top obtain H entirely2The high pressure azeotrope liquid of S and propane, through throttle valve
V05 is throttled to about 0.26MPaG, is sent to the entrance of H2S low-pressure distillation towers T103 by pipeline 14；H2S high-pressure rectification towers T102
Tower bottom liquid communicates piping 27, throttle valve V04 throttling the second heavy hydrocarbon knockout drums of feeding D103, the second heavy hydrocarbon knockout drum D103 are gas
Liquid knockout drum, tank deck gas phase go out battery limit (BL) desulfuration through pipeline 29 and recycle；Tank bottom liquid phase goes out battery limit (BL) duplicate removal hydrocarbon storage tank through pipeline 30；H2S
High-pressure rectification tower T102 is provided with overhead condenser E105 and tower bottom reboiler E104, and overhead condenser E105 colds are cold by recycling
But water provides；Tower bottom reboiler E104 is placed in H2In S high-pressure rectification towers T102, it is internal thermosiphon reboiler, is by vapor
Tower bottom reboiler E104 provides heat.
H2S low-pressure distillation towers T103 is that solidifying rectifying column, tower top obtain H entirely2The low pressure azeotrope liquid of S and propane, through H2S liquid
Body pump P102 beats to 2.5MPaG~4.0MPaG, is sent into H2S high-pressure rectification tower T102 entrances by valve V07, pipeline 19,09；
H2The bottoms of tower S low-pressure distillation tower T103 obtain high-purity H2S liquid, passes through H2S product pumps P103 is beaten to the pressure needed, through master
Heat exchanger E101 recycles cold, goes out battery limit (BL) by pipeline 22.H2S low-pressure distillation towers T103 is provided with overhead condenser E107 and tower
Bottom reboiler E106, overhead condenser E107 colds are by liquefied ammonia sweat cooling system (ammonia compressor BK103, D104,45~50)
It provides, this overhead condenser E107 is using liquefied ammonia thermal siphon condenser；Tower bottom reboiler E106 is placed in H2S low-pressure distillation towers
In T103, it is internal thermosiphon reboiler, heat is provided for tower bottom reboiler E106 by chilled water return water.
Above-described embodiment is specific embodiment of the present utility model.Next contain is washed for concentrating and purifying low-temp methanol
H2H in other similar gases in S sour gas and petrochemical industry, coal chemical industry2The separator and method of S can be made a variety of etc.
Same combination or variation, belongs to the scope of protection of the utility model.
Claims (3)
1. a kind of H2The low temperature separation unit of S includes mainly unstripped gas compression unit（Ⅰ）With separation unit cold box unit（Ⅱ）Two
Part, it is characterised in that the unstripped gas compression unit（Ⅰ）Inlet duct（01）What connection low-temp methanol was washed contains H2S is acid
Other similar gases in gas and petrochemical industry, coal chemical industry, the unstripped gas compression unit（Ⅰ）Above-mentioned gas is compressed to one
After constant-pressure, through pipeline（01）It connects and is sent into separation unit cold box unit（Ⅱ）；
The separation unit cold box unit（Ⅱ）Including main heat exchanger（E101）, the first heavy hydrocarbon knockout drum（D101）, light component
Rectifying column（T101）、H2S high-pressure rectification towers（T102）And H2S low-pressure distillation towers（T103）；The pipeline（01）Connection separation
Device cold box unit（Ⅱ）In main heat exchanger（E101）And the first heavy hydrocarbon knockout drum（D101）, the first heavy hydrocarbon knockout drum
（D101）The gaseous phase outlet tieback main heat exchanger of upper end（E101）, and in the main heat exchanger（E101）Outlet and light component essence
Evaporate tower（T101）Feed pipe（01）Connection；
The light component light component rectifying column（T101）Tower overhead gas is thick carbon dioxide gas, passes through pipeline（01）Through main heat exchange
Device（E101）Cold is recycled in re-heat, then passes through pipeline（01）Go out battery limit (BL)；Light component rectifying column（T101）Tower bottom liquid mutually passes through pipe
Road（01）With H2S liquid pumps（P101）Connection, outlet material pass through pipeline（01）With H2S high-pressure rectification towers（T102）Connection；
The H2S high-pressure rectification towers（T102）To coagulate rectifying column, H entirely2S high-pressure rectification towers（T102）Tower top pipe（01）Separation
The liquid phase gone out is through throttle valve（V05）, pipeline（01）With H2S low-pressure distillation towers（T103）Connection；H2S high-pressure rectification towers（T102）Tower
Bottom liquid phase passes through pipeline（01）, throttle valve（V04）, pipeline（01）With the second heavy hydrocarbon knockout drum（D103）Connection；
The H2S low-pressure distillation towers（T103）To coagulate rectifying column, H entirely2S low-pressure distillation towers（T103）Tower top pipe（01）Separation
The liquid phase gone out is through H2S liquid pumps（P102）, throttle valve（V07）, pipeline（01）With H2S high-pressure rectification towers（T102）Connection；H2S is low
Press rectifying column（T103) bottom of tower liquid phase is through pipeline（01)、H2S product pumps（P103）, valve（V06）, pipeline（01）With main heat exchanger
（E101）Connection, through main heat exchanger（E101）After recycling cold, pass through pipeline（01）Go out battery limit (BL).
2. H according to claim 12The low temperature separation unit of S, it is characterised in that the light component rectifying column（T101）
It is provided with overhead condenser（E102）And tower bottom reboiler（E103）, overhead condenser（E102）Hot-fluid stream femoral canal road and light component
Rectifying column（T101）Top gas phase pipeline（01）, overhead reflux pipeline（01）Connection, cold flow pipeline are connected to liquefied ammonia refrigeration system,
This overhead condenser（E102）Using liquefied ammonia thermal siphon condenser；Tower bottom reboiler（E103）It is placed in light component rectifying column
（T101）It is interior, it is internal thermosiphon reboiler, hot-fluid stream stock passes through pipeline with steam condensate（01）Connection is tower by steam condensate
Bottom reboiler（E103）Heat is provided；
The H2S high-pressure rectification towers（T102）It is provided with overhead condenser（E105）And tower bottom reboiler（E104）, overhead condensation
Device（E105）Hot-fluid stream femoral canal road and H2S high-pressure rectification towers（T102）Top gas phase pipeline（01）, pipeline（01）Connection, cold flow pipe
Road and recirculated cooling water pipeline（01）Connection；Tower bottom reboiler（E104）It is placed in H2S high-pressure rectification towers（T102）It is interior, for internal heat
Siphon reboiler, hot-fluid stream stock and vapor pipeline（01）Connection is tower bottom reboiler by vapor（E104）Heat is provided；
The second heavy hydrocarbon knockout drum（D103）For knockout drum, the second heavy hydrocarbon knockout drum（D103）Tank deck gas phase is through pipeline
（01）Go out battery limit (BL) desulfuration recycling；Second heavy hydrocarbon knockout drum（D103）Tank bottom liquid phase is through pipeline（01）Go out battery limit (BL) duplicate removal hydrocarbon storage tank；
The H2S low-pressure distillation towers（T103）It is provided with overhead condenser（E107）And tower bottom reboiler（E106）, overhead condensation
Device（E107）Hot-fluid stream femoral canal road and H2S low-pressure distillation towers（T103）Top gas phase pipeline（01）, pipeline（01）Connection, cold flow pipe
Road and liquefied ammonia refrigeration system ammonia compressor（BK103, D104,45~50）Connection, this overhead condenser（E107）Using liquid
Ammonia thermal siphon condenser；Tower bottom reboiler（E106）It is placed in H2S low-pressure distillation towers（T103）It is interior, it is internal thermosiphon reboiler,
Hot-fluid stream stock and chilled water pipeline（43、44）Connection is tower bottom reboiler by chilled water return water（E106）Heat is provided.
3. H according to claim 22The low temperature separation unit of S, it is characterised in that the ammonia compressor（AK102）, ammonia
Compressor（K103B）It will be through overhead condenser（E102）, overhead condenser（E107）Gas ammonia after evaporation is compressed to ammonia refrigeration system
The minimum pressure that system needs returns to ammonia refrigeration system；
The main heat exchanger（E101）, light component rectifying column（T101）Overhead condenser（E102）、H2S high-pressure rectification towers
（T102）Overhead condenser（E105）、H2S low-pressure distillation towers（T103）Tower bottom reboiler（E106）、H2S low-pressure distillation towers（T103）
Overhead condenser（E107）It is aluminum plate-fin heat exchanger；
The light component rectifying column（T101）、H2S high-pressure rectification towers（T102）、H2S low-pressure distillation towers（T103）It is filler essence
Evaporate tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720586660.1U CN207881348U (en) | 2017-05-24 | 2017-05-24 | The low temperature separation unit of H2S |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720586660.1U CN207881348U (en) | 2017-05-24 | 2017-05-24 | The low temperature separation unit of H2S |
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| Publication Number | Publication Date |
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| CN207881348U true CN207881348U (en) | 2018-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282576A (en) * | 2018-09-25 | 2019-01-29 | 河南心连心深冷能源股份有限公司 | A kind of device and production method with liquefied ammonia heat pump distillation mode of manufacture high-pure hydrogen sulfide |
-
2017
- 2017-05-24 CN CN201720586660.1U patent/CN207881348U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282576A (en) * | 2018-09-25 | 2019-01-29 | 河南心连心深冷能源股份有限公司 | A kind of device and production method with liquefied ammonia heat pump distillation mode of manufacture high-pure hydrogen sulfide |
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Address after: No.799, Xiangfu Road, Qingshanhu street, Lin'an District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou oxygen generator group Co.,Ltd. Address before: 311241, No. 99, East Ring Road, Qingshan Lake Street, Hangzhou, Zhejiang, Ling'an Patentee before: HANGZHOU HANGYANG Co.,Ltd. |
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Granted publication date: 20180918 Effective date of abandoning: 20220830 |
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