CN203964550U - In carbon disulfide preparation process, from hydrogen sulfide tail gas, reclaim the device of carbon disulfide - Google Patents
In carbon disulfide preparation process, from hydrogen sulfide tail gas, reclaim the device of carbon disulfide Download PDFInfo
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- CN203964550U CN203964550U CN201420317421.2U CN201420317421U CN203964550U CN 203964550 U CN203964550 U CN 203964550U CN 201420317421 U CN201420317421 U CN 201420317421U CN 203964550 U CN203964550 U CN 203964550U
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- carbon disulfide
- hydrogen sulfide
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Abstract
The utility model discloses the device that reclaims carbon disulfide in a kind of carbon disulfide preparation process from hydrogen sulfide tail gas, this device comprises exhaust gas collector, compressor, condenser, carbon disulfide collector and hydrogen sulfide carrier pipe, and the hydrogen sulfide tail gas that contains carbon disulfide producing in carbon disulfide preparation process is incorporated in exhaust collection device; The hydrogen sulfide tail gas containing carbon disulfide in exhaust collection device is passed into hydrogen sulfide compressor, and the tail gas that contains after supercharging passes into condenser condenses, and liquid carbon disulphide is reclaimed, and gas cure hydrogen is sent into hydrogen sulfide carrier pipe and entered hydrogen sulfide treatment operation; Whole process system does not produce any waste gas and sewage, makes carbon disulfide industrial production reach the process conditions of complete cleaner production, reduces to greatest extent to produce consuming simultaneously.
Description
Technical field
The utility model relates to the technical field that reclaims the carbon disulfide in hydrogen sulfide gas, is specifically related to utilize natural gas to prepare in carbon disulfide process, reclaims the device of carbon disulfide from hydrogen sulfide tail gas.
Background technology
Carbon disulfide is produced indispensable heavy chemical raw material as viscose glue, along with China's chemical fibre industry develops rapidly, carbon disulfide production capacity demand is also increasing, but can produce a large amount of pernicious gases in existing carbon disulphide production technical process, as sulfur dioxide and water pollution, the special relevant industries standard of working out of carbon disulphide production country, object is monitoring or reduces environmental pollution related work.
In carbon disulphide production process, from carbon disulfide separation, desulfurization, the essence of preparation section, the tail gas of a plurality of system units such as stay to produce and contain CS
2hydrogen sulfide tail gas, existing technique is to take liquid packing to collect CS
2, liquid packing reclaims carbon disulfide will produce sewage, gas cure hydrogen because containing a large amount of moisture content after water contact, be unfavorable for pressure recovery, and the moisture composition of hydrogen sulfide has stronger corrosivity, carbon disulfide is prepared accessory substance hydrogen sulfide and is delivered to through claus process and be recycled into sulphur by system pressure, and waste gas in preparation process substantially there is no pressure or gauge pressure close to 0, can not send into Crouse reclaims, therefore finally adopt disposable way, be discharged into the method that heating furnace flue outlet burns, the sulfur dioxide producing after burning pollutes atmosphere, be that industrial tail gas pollutes, be unfavorable for environmental protection, to the discharge of hydrogen sulfide gas, be also a provenance material waste simultaneously, affect product consumption.
There is following defect in existing exhaust treatment system: described tail gas is that separation, desulfurization, the essence in carbon disulfide preparation process stays a plurality of process point links can produce a small amount of hydrogen sulfide gas containing carbon disulfide, this tail gas can not reclaim effectively, burn and produce sulfur dioxide to environment, reclaim carbon disulfide process and will produce trade effluent, in addition, burning hydrogen sulfide gas itself is also a kind of waste, directly affects product consumption.When the method for existing process using liquid packing reclaims in tail gas carbon disulfide, 2/3 clear water is housed in water seal, tail gas is through clear water, and carbon disulfide is deposited in lower curtate, and hydrogen sulfide is still that gas is discharged from water seal top.This water seal need to be refreshed the water periodically, with entering to reclaim carbon disulfide, this process production waste.
China Patent Publication No. is: CN1919733A, within open day, be: 2007.2.28, the Apparatus and method for that reclaims carbon disulfide in hydrogen sulfide gas in a kind of carbon disulfide preparation is disclosed, solve the isolated hydrogen sulfide gas containing carbon disulfide in existing carbon disulphide production process and directly enter Crouse's recovery system, and reduce the problems such as claus reaction device inner catalyst activity, the hydrogen sulfide gas that contains carbon disulfide that first knockout tower is separated is sent at least the absorption that hockets respectively in adsorptive reactor, desorb operation, carbon disulfide mist after desorb enters refined unit and reclaims carbon disulfide, the present invention adopts pressure-variable adsorption mode that the 0.5-8% carbon disulfide in hydrogen sulfide gas is reclaimed, not only improved economic benefit, and removed the organic sulfur in hydrogen sulfide gas, increased catalyst in reactor active, be very beneficial for the carrying out of claus reaction, thereby improved sulfur recovery rate, and reduce the sulfur dioxide concentration in final emission, protected environment.It is mainly the recovery to carbon disulfide in a large amount of accessory substance hydrogen sulfide gas, reduces the content of carbon disulfide by the method for pressure-variable adsorption.And be to reclaim for waste gas herein, the source of gas recovery is all different.
Separately have Chinese patent notification number: CN101912718B, the day for announcing is: 2012.5.23 discloses a kind of device and method with carbon disulfide in solvent absorption hydrogen sulfide gas, belongs to and prepares hydrogen sulfide gas and carbon disulfide technical field.Apparatus of the present invention mainly comprise absorption tower, Analytic Tower, gas-liquid separator, heat exchanger, cooler, heater, pump and valve etc.; The inventive method is to utilize apparatus of the present invention, by solvent and mass transfer dynamics control procedure, absorbs, is isolated H
2s and CS
2product.The method adopts absorption process to reclaim carbon disulfide, larger to tail gas recycle difficulty not with pressure, and used device high cost, controls the large feature of difficulty, is not suitable for native system tail gas or waste gas are reclaimed.
Utility model content
In order to overcome the defect of above-mentioned prior art, the utility model provides the device that reclaims carbon disulfide in a kind of carbon disulfide preparation process from hydrogen sulfide tail gas, in this device, cancelled liquid packing, in normal productive process, whole system does not produce waste gas and sewage, make carbon disulfide industrial production reach complete cleaner production, reduce to greatest extent to produce consuming simultaneously.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
In carbon disulfide preparation process, from hydrogen sulfide tail gas, reclaim the device of carbon disulfide, it is characterized in that: comprise exhaust gas collector, compressor, condenser, carbon disulfide collector and hydrogen sulfide carrier pipe, the hydrogen sulfide tail gas that contains carbon disulfide that described exhaust gas collector stays link to produce for collecting separation, desulfurization, the essence of carbon disulfide preparation process; Described exhaust gas collector is connected with the inlet end of compressor, the outlet side of compressor is connected with the import of condenser, the liquid outlet of condenser is connected with carbon disulfide collector, the gas outlet of condenser is connected with hydrogen sulfide carrier pipe, and the connecting pipe between the gas outlet of described condenser and hydrogen sulfide carrier pipe is provided with pressure-control valve.
In connecting pipe between the gas outlet of described condenser and hydrogen sulfide carrier pipe, be also provided with bypass regulator valve, described bypass regulator valve is in parallel with pressure-control valve, and described bypass regulator valve is safety valve.
The outlet side of described compressor is also connected with exhaust gas collector by pipeline, and this pipeline is provided with the pressure balance control valve for increasing gas pressure in exhaust gas collector.
Described compressor is hydrogen sulfide compressor, and described condenser is carbon disulfide condenser.
The utlity model has following advantage:
1, the utility model comprises exhaust gas collector, compressor, condenser, carbon disulfide collector and hydrogen sulfide carrier pipe, the hydrogen sulfide tail gas that contains carbon disulfide that exhaust gas collector stays link to produce for collecting separation, desulfurization, the essence of carbon disulfide preparation process, compressor compresses the hydrogen sulfide tail gas that contains carbon disulfide from exhaust gas collector, tail gas after compression enters to enter condenser again and carries out condensation, the liquid carbon disulphide that condensation is got off enters carbon disulfide collector, gas cure hydrogen through pressure-control valve enter hydrogen sulfide supervisor deliver to hydrogen sulfide treatment after operation, when reaching recovery carbon disulfide, reclaim hydrogen sulfide, whole process produces without sewage, without noxious gas emission, in this device, cancelled liquid packing, in normal productive process, whole system does not produce waste gas and sewage, make carbon disulfide industrial production reach complete cleaner production, reduce to greatest extent to produce simultaneously and consume.
2, in the utility model gas cure hydrogen through pressure-control valve enter hydrogen sulfide supervisor deliver to hydrogen sulfide treatment after operation, due in actual production in order to prevent pressure-control valve operational failure, a bypass regulator valve (being safety valve) in parallel with pressure-control valve on its pipeline, when pressure-control valve lost efficacy, gas cure hydrogen enters operation after hydrogen sulfide treatment by bypass regulator valve, prevents the generation of dangerous accident.
3, in the utility model, the outlet side of compressor is also connected with exhaust gas collector by pipeline, and this pipeline is provided with the pressure balance control valve for increasing gas pressure in exhaust gas collector, because compressor compresses the hydrogen sulfide tail gas that contains carbon disulfide from exhaust gas collector, tail gas pressure in exhaust gas collector is reduced to when lower (pressure lower than gauge pressure 0 time), when a little, compressor need to regulate the balance of decrement, while preventing because of accumulator pressure lower than gauge pressure 0, extract carbon disulfide composition out, therefore by regulating pressure balance control valve, the a part of tail gas that allows compressor outlet side discharge enters exhaust gas collector by balance regulating valve, form loop, for device, normally work, to effectively the carbon disulfide in exhaust gas collector tail gas is reclaimed.
4, the compressor in the utility model is hydrogen sulfide compressor, and condenser is carbon disulfide condenser,
Compression function reclaims hydrogen sulfide gas in tail gas all in operation or waste gas system, after supercharging, can send into Crouse's operation Recovered sulphur by pipeline, carbon disulfide condenser regain to be received carbon disulfide, from the clear water of clear water reserviors, by cooling tower, recycles.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is workflow diagram of the present utility model;
Mark in figure: 1, exhaust gas collector, 2, compressor, 3, condenser, 4, carbon disulfide collector, 5, hydrogen sulfide carrier pipe, 6, pressure-regulating valve, 7, pressure balance control valve, 8, bypass regulator valve.
The specific embodiment
Embodiment 1
Carbon disulfide is in preparation production process in each link, and as person in separation, desulfurization and distillation process can produce the hydrogen sulfide tail gas containing carbon disulfide, it is processed comparatively and disperses, and generally takes liquid packing to collect CS in prior art
2, and then be discharged into the method that heating furnace flue outlet burns, and produce sulfur dioxide to environment, reclaim carbon disulfide process and will produce trade effluent.
The invention provides a kind of method that reclaims carbon disulfide in carbon disulfide preparation process from hydrogen sulfide tail gas, comprise the steps:
A. the separation of carbon disulfide preparation process, desulfurization, essence are stayed (etc.) hydrogen sulfide tail gas that contains carbon disulfide that produces in link is incorporated in exhaust collection device; Exactly the hydrogen sulfide tail gas that contains carbon disulfide producing in described each link is introduced to (or in exhaust collection tank) in exhaust collection device by pipeline.
B. the hydrogen sulfide tail gas containing carbon disulfide each link in preparation process being collected in exhaust collection device passes into hydrogen sulfide compressor, and is pressurized to 0.4MPa-0.6MPa.The object first of its supercharging, in order to improve the boiling point of carbon disulfide, is convenient to accurately; It two is in order pressure to be provided to the hydrogen sulfide in subsequent step C, to allow hydrogen sulfide enter smoothly hydrogen sulfide carrier pipe and enter hydrogen sulfide treatment operation.
C. by step B after hydrogen sulfide compressor boost containing the hydrogen sulfide tail gas of carbon disulfide pass into condenser, by condensation, because the boiling point of carbon disulfide is much higher than the boiling point of hydrogen sulfide, therefore carbon disulfide is frozen into liquid carbon disulphide and is reclaimed, and gas cure hydrogen is sent into hydrogen sulfide carrier pipe and entered hydrogen sulfide treatment operation.
Condenser in said method is carbon disulfide condenser, and its condensation temperature is-15 degree.
In the condensation process of said method step C, also comprise by hydrogen sulfide compressor and pass into the hydrogen sulfide tail gas containing carbon disulfide to exhaust collection device, to increase the step of the pressure in exhaust collection device.In removal process, during pressure decreased in exhaust collection device while approaching vacuum (or), automatic regulating valve is opened loop automatically, avoids a large amount of carbon disulfide suction compressors.
Its technological process as shown in Figure 2, the hydrogen sulfide tail gas that contains carbon disulfide that exhaust gas collector stays link to produce for separation, desulfurization, the essence of collecting carbon disulfide preparation process; Compressor compresses the hydrogen sulfide tail gas that contains carbon disulfide from exhaust gas collector, tail gas after compression enters to enter condenser again and carries out condensation, the liquid carbon disulphide that condensation is got off enters carbon disulfide collector, gas cure hydrogen through pressure-control valve enter hydrogen sulfide supervisor deliver to hydrogen sulfide treatment after operation, when reaching recovery carbon disulfide, reclaim hydrogen sulfide, whole process produces without sewage, without noxious gas emission.
The device that reclaims carbon disulfide in the carbon disulfide preparation process of utilizing said method from hydrogen sulfide tail gas is also provided in the present invention.As shown in Figure 1:
In a kind of carbon disulfide preparation process, from hydrogen sulfide tail gas, reclaim the device of carbon disulfide, comprise exhaust gas collector 1, compressor 2, condenser 3, carbon disulfide collector 4 and hydrogen sulfide carrier pipe 5, the hydrogen sulfide tail gas that contains carbon disulfide that described exhaust gas collector 1 stays link to produce for collecting separation, desulfurization, the essence of carbon disulfide preparation process; Described exhaust gas collector 1 is connected with the inlet end of compressor 2, the outlet side of compressor 2 is connected with the import of condenser 3, the liquid outlet of condenser 3 is connected with carbon disulfide collector 4, the gas outlet of condenser 3 is connected with hydrogen sulfide carrier pipe 5, and the connecting pipe between the gas outlet of described condenser 3 and hydrogen sulfide carrier pipe 5 is provided with pressure-control valve 6.2 pairs, compressor compresses from 1 the hydrogen sulfide tail gas that contains carbon disulfide in exhaust gas collector, tail gas after compression enters to enter condenser 3 again and carries out condensation, the liquid carbon disulphide that condensation is got off enters carbon disulfide collector 4, and gas cure hydrogen is operation after pressure-control valve 6 enters hydrogen sulfide carrier pipe 5 to deliver to hydrogen sulfide treatment.Setting pressure control valve 6, in order to control the pressure of the hydrogen sulfide tail gas that contains carbon disulfide in condenser 3.Above-mentioned connection all adopts fluid pipeline to connect.
Further, in connecting pipe between the gas outlet of described condenser 3 and hydrogen sulfide carrier pipe 5, be also provided with bypass regulator valve 8, described bypass regulator valve 8 is in parallel with pressure-control valve 6, described bypass regulator valve 8 is a safety valve actually, in this device, in order to prevent pressure-control valve operational failure, while reaching pressure-control valve working value, pressure-control valve is not opened normal work, can make the pressure in condenser 3 constantly increase, cause hidden danger; Therefore on its pipeline, a bypass regulator valve 8(in parallel with pressure-control valve is safety valve), when pressure-control valve lost efficacy, gas cure hydrogen enters operation after hydrogen sulfide treatment by bypass regulator valve, prevents the generation of dangerous accident.
Further, because compressor compresses the hydrogen sulfide tail gas that contains carbon disulfide from exhaust gas collector, tail gas pressure in exhaust gas collector is reduced to when very low (gauge pressure lower than 0 time), tail gas in exhaust gas collector can not enter compressor, therefore by regulating pressure balance control valve, the a part of tail gas that allows compressor outlet side discharge enters exhaust gas collector by pressure balance control valve, form certain pressure, for device, normally work, to effectively the carbon disulfide in exhaust gas collector tail gas is reclaimed.Therefore in the outlet side of described compressor 2, also by pipeline, be connected with exhaust gas collector 1, and this pipeline is provided with the pressure balance control valve 7 for increasing exhaust gas collector 1 interior gas pressure.
Above-mentioned compressor 2 is hydrogen sulfide compressor, and described condenser 3 is carbon disulfide condenser.
Claims (4)
1. in carbon disulfide preparation process, from hydrogen sulfide tail gas, reclaim the device of carbon disulfide, it is characterized in that: comprise exhaust gas collector (1), compressor (2), condenser (3), carbon disulfide collector (4) and hydrogen sulfide carrier pipe (5), the hydrogen sulfide tail gas that contains carbon disulfide that described exhaust gas collector (1) stays link to produce for collecting separation, desulfurization, the essence of carbon disulfide preparation process; Described exhaust gas collector (1) is connected with the inlet end of compressor (2), the outlet side of compressor (2) is connected with the import of condenser (3), the liquid outlet of condenser (3) is connected with carbon disulfide collector (4), the gas outlet of condenser (3) is connected with hydrogen sulfide carrier pipe (5), and the connecting pipe between the gas outlet of described condenser (3) and hydrogen sulfide carrier pipe (5) is provided with pressure-control valve (6).
2. in carbon disulfide preparation process according to claim 1, from hydrogen sulfide tail gas, reclaim the device of carbon disulfide, it is characterized in that: in the connecting pipe between the gas outlet of described condenser (3) and hydrogen sulfide carrier pipe (5), be also provided with bypass regulator valve (8), described bypass regulator valve (8) is in parallel with pressure-control valve (6), and described bypass regulator valve (8) is safety valve.
3. in carbon disulfide preparation process according to claim 1, from hydrogen sulfide tail gas, reclaim the device of carbon disulfide, it is characterized in that: the outlet side of described compressor (2) is also connected with exhaust gas collector (1) by pipeline, and this pipeline is provided with the pressure balance control valve (6) for increasing the interior gas pressure of exhaust gas collector (1).
4. in carbon disulfide preparation process according to claim 1, from hydrogen sulfide tail gas, reclaim the device of carbon disulfide, it is characterized in that: described compressor (2) is hydrogen sulfide compressor, and described condenser (3) is carbon disulfide condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317421.2U CN203964550U (en) | 2014-06-16 | 2014-06-16 | In carbon disulfide preparation process, from hydrogen sulfide tail gas, reclaim the device of carbon disulfide |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420317421.2U CN203964550U (en) | 2014-06-16 | 2014-06-16 | In carbon disulfide preparation process, from hydrogen sulfide tail gas, reclaim the device of carbon disulfide |
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| CN203964550U true CN203964550U (en) | 2014-11-26 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006629A (en) * | 2014-06-16 | 2014-08-27 | 成都丽雅纤维股份有限公司 | Method and device for recycling carbon disulfide from hydrogen sulfide tail gas during preparation of carbon disulfide |
| CN105293493A (en) * | 2015-11-20 | 2016-02-03 | 张贯彪 | Sulfur catcher used in carbon disulfide production |
| CN106000270A (en) * | 2016-06-06 | 2016-10-12 | 徐州工程学院 | Special reaction device for curing agent for repair of soil heavy metal pollution and production method thereof |
| CN107082427A (en) * | 2017-04-19 | 2017-08-22 | 苏州市兴鲁空分设备科技发展有限公司 | Carbon disulfide retracting device |
| CN111265969A (en) * | 2020-03-20 | 2020-06-12 | 鹤壁市恒力橡塑股份有限公司 | Method for efficiently recovering carbon disulfide from tail gas |
-
2014
- 2014-06-16 CN CN201420317421.2U patent/CN203964550U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006629A (en) * | 2014-06-16 | 2014-08-27 | 成都丽雅纤维股份有限公司 | Method and device for recycling carbon disulfide from hydrogen sulfide tail gas during preparation of carbon disulfide |
| CN105293493A (en) * | 2015-11-20 | 2016-02-03 | 张贯彪 | Sulfur catcher used in carbon disulfide production |
| CN106000270A (en) * | 2016-06-06 | 2016-10-12 | 徐州工程学院 | Special reaction device for curing agent for repair of soil heavy metal pollution and production method thereof |
| CN107082427A (en) * | 2017-04-19 | 2017-08-22 | 苏州市兴鲁空分设备科技发展有限公司 | Carbon disulfide retracting device |
| CN111265969A (en) * | 2020-03-20 | 2020-06-12 | 鹤壁市恒力橡塑股份有限公司 | Method for efficiently recovering carbon disulfide from tail gas |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141126 Effective date of abandoning: 20160907 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |