CN207745884U - A kind of regenerated device of organic sulfur hydroconversion catalyst - Google Patents
A kind of regenerated device of organic sulfur hydroconversion catalyst Download PDFInfo
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- CN207745884U CN207745884U CN201721879428.3U CN201721879428U CN207745884U CN 207745884 U CN207745884 U CN 207745884U CN 201721879428 U CN201721879428 U CN 201721879428U CN 207745884 U CN207745884 U CN 207745884U
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Abstract
The utility model provides a kind of regenerated device of organic sulfur hydroconversion catalyst, belongs to catalyst regeneration device technical field.For organic sulfur hydroconversion catalyst because carbon distribution cover activity reduce the problem of, use technical solution for：Including heating furnace, nitrogen supercharging pump, hydro-conversion device, shell-and-tube heat exchanger, gas-liquid separator.Heating furnace inlet line accesses low-pressure saturated steam, and outlet line accesses the top process gas suction line of hydro-conversion device；Nitrogen supercharging pump inlet pipeline accesses nitrogen, and outlet line accesses the top process gas suction line of hydro-conversion device；It is communicated with outlet blow-down pipe in the middle part of the bottom process gas outlet line of hydro-conversion device, the outlet blow-down pipe is provided with outlet blow valve, and the end for exporting blow-down pipe is sequentially connected shell-and-tube heat exchanger and gas-liquid separator；Shell-and-tube heat exchanger carries out cooling down to the gas after regeneration；Gas-liquid separator carries out gas-liquid two-phase separation, and the external Venting and Flare Stack System of knockout drum top exit connection of gas-liquid separator, the external sewage disposal system of outlet at bottom connection to gas after cooling.The utility model realizes the on-line regeneration of catalyst.
Description
Technical field
The utility model is related to catalyst regeneration device technical field, specifically a kind of Organic sulfur hydro-conversion catalysis
The regenerated device of agent.
Background technology
The coal gas that a large amount of low hydrogen-carbon ratios more than needed are generated in coke-oven plant's production process, the purification production day after methanation reaction
Right gas, in order to prevent follow-up methanation catalyst there is sulfur poisoning, it is necessary to deep desulfuration is carried out to it.The organic sulfur of use adds hydrogen to urge
Agent, with the growth of the duration of runs, finds catalyst activity during removing organic sulfur to coke-stove gas hydro-conversion
It is gradually reduced, design service life is not achieved.Catalyst is one kind can change reactant chemical reaction rate in chemical reaction
（It increases or decreases）Without changing chemical balance, and the quality of itself and chemical property all do not change before and after chemical reaction
The substance of change.Because being attached to catalyst surface, catalyst activity containing a small amount of impurity such as tar, lubricating oil in coke-stove gas
Center is covered by carbon causes its activity to be gradually reduced, and the reduction of the bed temperature difference, bed resistance is caused to increase.
Therefore, a kind of regenerated device of organic sulfur hydroconversion catalyst is designed, to restore the activity of catalyst.
Invention content
The technical assignment of the utility model is to solve the deficiencies in the prior art, is added for organic sulfur existing in the prior art
Hydrogen reforming catalyst provides a kind of regenerated device of organic sulfur hydroconversion catalyst because of the problem of carbon distribution covers, and activity reduces.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of regenerated device of organic sulfur hydroconversion catalyst, structure include heating furnace, and nitrogen supercharging pump adds hydrogen to turn
Change device, shell-and-tube heat exchanger, gas-liquid separator.The inlet line of heating furnace accesses low-pressure saturated steam, the outlet of heating furnace
Line accesses the top process gas suction line of hydro-conversion device；The inlet line of nitrogen supercharging pump accesses nitrogen, nitrogen supercharging pump
Outlet line also access the top process gas suction line of hydro-conversion device；The top process gas suction line of hydro-conversion device
It is provided with process gas inlet valve；It is communicated with outlet blow-down pipe in the middle part of the bottom process gas outlet line of hydro-conversion device, is exported
Blow-down pipe is provided with outlet blow valve, and the end for exporting blow-down pipe is sequentially connected shell-and-tube heat exchanger and gas-liquid separator；
Shell-and-tube heat exchanger carries out cooling down to the gas after regeneration；Gas-liquid separator carries out gas-liquid two-phase point to gas after cooling
From, and the external Venting and Flare Stack System of knockout drum top exit connection of gas-liquid separator, the knockout drum bottom of gas-liquid separator goes out
The external sewage disposal system of mouth connection.
The inlet line of involved heating furnace is provided with steam inlet valve, and the outlet line of involved heating furnace is set gradually
There are first pressure gauge, thermometer, steam outlet valve.
The outlet line connection of involved heating furnace prevents discharge water entrained by steam from entering hydro-conversion device damage catalyst
The communicating position of steam evacuation pipeline, involved steam evacuation pipeline and heating furnace outlet line is located at thermometer and steam (vapor) outlet
Between valve, involved steam evacuation pipeline is provided with steam evacuation valve.
The low-pressure saturated steam of involved heating furnace access be pressure 0.6MPa, 158.86 DEG C of temperature saturated vapor, rise
The overheat saturated-steam temperature of warm outlet of still pipeline is 440 DEG C or more.
The inlet line of involved heating furnace is provided with low-pressure saturated steam flowmeter.
Involved nitrogen supercharging pump selects reciprocating nitrogen supercharging pump, the operating pressure of compound nitrogen supercharging pump to be not less than
The inlet line of 2.0MPa, reciprocating nitrogen supercharging pump are provided with nitrogen inlet valve, the outlet line of reciprocating nitrogen supercharging pump
It is disposed with second pressure gauge and nitrogen outlet valve.
The inside regeneration pressure of involved hydro-conversion device is no more than 0.3MPa, the bottom process gas outlet of hydro-conversion device
End of line is provided with process gas outlet valve.
Involved shell-and-tube heat exchanger is equipped with recirculated water air bleeding valve, and shell-and-tube heat exchanger is to the gas cooling down after regeneration
To 40 DEG C or less.
The knockout drum side of involved gas-liquid separator is provided with liquid level gauge, and knockout drum outlet at bottom is provided with regulating valve.
A kind of regenerated device of organic sulfur hydroconversion catalyst of the utility model is generated compared with prior art
Advantageous effect is：
The utility model urges Organic sulfur hydro-conversion by using low-pressure saturated steam without being shifted to catalyst
Agent carries out oxidation regeneration, and the carbon distribution that removal catalyst surface is covered has the function that restore catalyst activity, reduce to ring
The pollution in border and the generation of solid dangerous waste, moreover it is possible to ensure that catalyst in the on-line regeneration of hydro-conversion device, ensures system
Normal operation；In addition, the catalyst activity after regeneration rises, the catalyst change period is extended, while reducing hydro-conversion
Device inlet outlet pressure differential ensures the stable operation of system.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the utility model.
Each label indicates in figure：
1, steam inlet valve, 2, low-pressure saturated steam flowmeter, 3, heating furnace, 4, first pressure gauge,
5, thermometer, 6, steam evacuation pipeline, 7, steam evacuation valve, 8, steam outlet valve,
9, process gas suction line, 10, process gas inlet valve, 11, nitrogen inlet valve,
12, reciprocating nitrogen supercharging pump, 13, second pressure gauge, 14, nitrogen outlet valve,
15, hydro-conversion device, 16, process gas outlet line, 17, process gas outlet valve,
18, blow valve is exported, 19, outlet blow-down pipe, 20, shell-and-tube heat exchanger,
21, gas-liquid separator, 22, liquid level gauge, 23, regulating valve.
Specific implementation mode
In order to better illustrate the utility model, in conjunction with specific embodiment and Figure of description to technical solution do into
The explanation of one step.Although having recorded these specific embodiments in embodiment, so it is not limited to the utility model, appoints
Has usually intellectual in what technical field, without departing from the spirit and scope of the utility model, when can make a little
It changes and retouches, therefore the scope of protection of the utility model is when subject to those as defined in claim.
As shown in Fig. 1, a kind of regenerated device of organic sulfur hydroconversion catalyst of the utility model, structure include
Heating furnace 3, reciprocating nitrogen supercharging pump 12, hydro-conversion device 15, shell-and-tube heat exchanger 20, gas-liquid separator 21.Heating furnace 3
Inlet line accesses low-pressure saturated steam, the top process gas inlet tube of the outlet line access hydro-conversion device 15 of heating furnace 3
Line 9；The inlet line of reciprocating nitrogen supercharging pump 12 accesses nitrogen, and the outlet line of reciprocating nitrogen supercharging pump 12, which also accesses, to be added
The top process gas suction line 9 of hydrogen converter 15；The top process gas suction line 9 of hydro-conversion device 15 is provided with process gas
Inlet valve 10；16 middle part of bottom process gas outlet line of hydro-conversion device 15 is communicated with outlet blow-down pipe 19, outlet emptying
Pipeline 19 is provided with outlet blow valve 18, and the end of outlet blow-down pipe 19 is sequentially connected shell-and-tube heat exchanger 20 and gas-liquid separation
Device 21；Shell-and-tube heat exchanger 20 carries out cooling down to the gas after regeneration；Gas-liquid separator 21 carries out gas after cooling
Gas-liquid two-phase detaches, and the external Venting and Flare Stack System of knockout drum top exit connection of gas-liquid separator 21, gas-liquid separator 21
The external sewage disposal system of knockout drum outlet at bottom connection.
The inlet line of involved heating furnace 3 is provided with steam inlet valve 1, and the outlet line of involved heating furnace 3 is successively
It is provided with first pressure gauge 4, thermometer 5, steam outlet valve 8.
The outlet line connection of involved heating furnace 3 prevents discharge water entrained by steam from entering hydro-conversion device 15 and damages catalyst
Steam evacuation pipeline 6, the communicating position of involved steam evacuation pipeline 6 and 3 outlet line of heating furnace is located at thermometer 5 and steaming
Between vapor outlet valve 8, involved steam evacuation pipeline 6 is provided with steam evacuation valve 7.
Involved heating furnace 3 access low-pressure saturated steam be pressure 0.6MPa, 158.86 DEG C of temperature saturated vapor, rise
The overheat saturated-steam temperature of 3 outlet line of warm stove is 440 DEG C or more.
The inlet line of involved heating furnace 3 is provided with low-pressure saturated steam flowmeter 2.
Involved reciprocating nitrogen supercharging pump 12 is for the purging work after regenerating, the operating pressure of compound nitrogen supercharging pump
Not less than 2.0MPa, the inlet line of reciprocating nitrogen supercharging pump 12 is provided with nitrogen inlet valve 11, reciprocating nitrogen supercharging pump
12 outlet line is disposed with second pressure gauge 13 and nitrogen outlet valve 14.
The inside regeneration pressure of involved hydro-conversion device 15 is no more than 0.3MPa, the bottom process gas of hydro-conversion device 15
16 end of outlet line is provided with process gas outlet valve 17.
Involved shell-and-tube heat exchanger 20 is equipped with recirculated water air bleeding valve, and shell-and-tube heat exchanger 20 cools down to the gas after regeneration
It is cooled to 40 DEG C or less.
The knockout drum side of involved gas-liquid separator 21 is provided with liquid level gauge 22, and knockout drum outlet at bottom is provided with adjusting
Valve 23.
The regeneration principle of the utility model is：
Oxidation regeneration is carried out to organic sulfur hydroconversion catalyst using low-pressure saturated steam, removal catalyst surface is covered
The carbon distribution of lid has the function that restore catalyst activity, equation：C+H2O=CO+H2。
The regeneration flow of the utility model：Low-pressure saturated steam → heating furnace 3 → hydro-conversion, 15 → pipe shell type heat exchange of device
Device 20 → gas-liquid separator, 21 → gas phase is sent to torch, and liquid phase is sent to sewage disposal.
In conjunction with attached drawing 1, the reproduction operation process of the utility model is specially：
1）Heating furnace 3 is lighted, the steam inlet valve 1 and steam evacuation valve 7 of heating furnace 3 is opened, is drained, empties water
Afterwards, by pressure 0.6MPa, the low-pressure saturated steam that 158.86 DEG C of temperature is passed through heating furnace 3, ensures that 8-10t/h of flow is set
Simultaneously temperature raising is changed, 3 outlet steam temperature of stove will heat up with 40-60 DEG C/h heating rates and be increased to 450 ± 10 DEG C, steam is known as herein
Superheated steam；
2）It is gradually opened the steam outlet valve 8 of heating furnace 3, slowly closing steam evacuation valve 7, by 450 ± 10 DEG C of overheat
Steam is passed through hydro-conversion device 15 and is regenerated into line replacement and to catalyst, and during this, control regeneration pressure does not surpass
0.3MPa, air speed 250h-1 , superheated steam starts timing, controls superheat steam flow after being passed through, bed temperature is kept to stablize, when
Between do not surpass 4 hours be unable to reach except carbon effect because temperature is too low, temperature is excessively high to cause catalyst structure to inactivate, time mistake
Length can also have an impact catalyst；
3）The steam that hydro-conversion device 15 is discharged liquid phase after refrigerated separation, which is sent to sewage treatment plant, to be handled, gas phase
It send to torch and burns, reduce the pollution to environment；
4）After regeneration ending, adjustment 3 load of heating furnace cools down to bed, 50 DEG C/h of rate of temperature fall, bed hot spot temperature
Degree is down to 200 DEG C or so, stops heating furnace 3；
5）Open nitrogen inlet valve 11, nitrogen outlet valve 14, steam evacuation valve 7, meanwhile, close the steam of heating furnace 3 into
The outlet blow valve 18 of mouth valve 1 and outlet blow-down pipe 19 pours reciprocating 12 compression of nitrogen supercharging pump to hydro-conversion device 15
Nitrogen into line replacement, and control by exporting the outlet blow valve 18 of blow-down pipe 19 internal pressure of hydro-conversion device 15,
First use 0.5MPa pressure purges twice, then pressure-raising to 1.0MPa, 2.0MPa pressure purges twice respectively, until outlet blow-down pipe
The outlet end no-sundries of line 19, can be arranged white paint baffle be used for observe export blow-down pipe 19 outlet end whether have it is miscellaneous
Object；Herein it should be noted that disconnection blow-down pipe 19 and the link position of shell-and-tube heat exchanger 20 is needed to be observed, also may be used
To install triple valve in the link position of blow-down pipe 19 and shell-and-tube heat exchanger 20, sundries in this case can be directly carried out
Observation；
6）Again to hydro-conversion device 15 into line replacement after the completion of nitrogen purging, oxygen content is less than 0.5% qualification, and analysis is closed
Flow is changed to normal production procedure after lattice, slowly being boosted using process gas is incorporated to system and puts into operation.
Data in the utility model concrete operation step are not limited thereto embodiment, steam intake and recovery time
It can be determined according to the difference of required regenerated catalyst Specific amounts and soot level, purge number and pressure can be according to specific
Situation is purged to determine, until no-sundries.Regeneration opportunity can be determined according to the specific condition of production.Effect meeting after regeneration repeatedly
It is gradually reduced, until without apparent Wen Sheng, is considered as more catalyst changeout at this time.
In conclusion the above content is only to illustrate the technical solution of the utility model, rather than the utility model is protected
The limitation of range, although the specific embodiment part explains the utility model in detail, the ordinary skill of this field
Personnel, which should be appreciated that, to be modified or replaced equivalently the technical solution of the utility model, new without departing from this practicality
The spirit and scope of type technical solution.
Claims (9)
1. a kind of regenerated device of organic sulfur hydroconversion catalyst, which is characterized in that its structure includes heating furnace, nitrogen supercharging
Pump, hydro-conversion device, shell-and-tube heat exchanger, gas-liquid separator；
The inlet line of the heating furnace accesses low-pressure saturated steam, the outlet line access hydro-conversion device of the heating furnace
Top process gas suction line；
The inlet line of the nitrogen supercharging pump accesses nitrogen, and the outlet line of the nitrogen supercharging pump also accesses hydro-conversion device
Top process gas suction line；
The top process gas suction line of the hydro-conversion device is provided with process gas inlet valve；
It is communicated with outlet blow-down pipe, the outlet blow-down pipe in the middle part of the bottom process gas outlet line of the hydro-conversion device
It is provided with outlet blow valve, the end for exporting blow-down pipe is sequentially connected shell-and-tube heat exchanger and gas-liquid separator；
The shell-and-tube heat exchanger carries out cooling down to the gas after regeneration；
The gas-liquid separator carries out gas-liquid two-phase separation, and the knockout drum top exit of gas-liquid separator to gas after cooling
The external Venting and Flare Stack System of connection, the external sewage disposal system of knockout drum outlet at bottom connection of gas-liquid separator.
2. the regenerated device of a kind of organic sulfur hydroconversion catalyst according to claim 1, which is characterized in that the liter
The inlet line of warm stove is provided with steam inlet valve, and the outlet line of the heating furnace is disposed with first pressure gauge, temperature
Meter, steam outlet valve.
3. the regenerated device of a kind of organic sulfur hydroconversion catalyst according to claim 2, which is characterized in that the liter
The outlet line connection of warm stove prevents discharge water entrained by steam from entering the steam evacuation pipeline that hydro-conversion device damages catalyst, described
The communicating position of steam evacuation pipeline and heating furnace outlet line is between thermometer and steam outlet valve, the steam evacuation
Pipeline is provided with steam evacuation valve.
4. the regenerated device of a kind of organic sulfur hydroconversion catalyst according to claim 1, which is characterized in that the liter
The low-pressure saturated steam of warm stove access be 0.6 MPa of pressure, 158.86 DEG C of temperature saturated vapor, the mistake of heating furnace outlet line
Hot saturated-steam temperature is 440 DEG C or more.
5. the regenerated device of a kind of organic sulfur hydroconversion catalyst according to claim 1, which is characterized in that described
The inlet line of heating furnace is provided with low-pressure saturated steam flowmeter.
6. the regenerated device of a kind of organic sulfur hydroconversion catalyst according to claim 1, which is characterized in that the nitrogen
Gas booster pump selects reciprocating nitrogen supercharging pump, the operating pressure of compound nitrogen supercharging pump to be not less than 2.0 MPa, reciprocating nitrogen
The inlet line of booster pump is provided with nitrogen inlet valve, and the outlet line of reciprocating nitrogen supercharging pump is disposed with second pressure
Table and nitrogen outlet valve.
7. the regenerated device of a kind of organic sulfur hydroconversion catalyst according to claim 1, which is characterized in that described to add
The inside regeneration pressure of hydrogen converter is no more than 0.3MPa, and the bottom process gas outlet line end of hydro-conversion device is provided with work
Skill gas outlet valve.
8. the regenerated device of a kind of organic sulfur hydroconversion catalyst according to claim 1, which is characterized in that the pipe
Shell heat exchanger is equipped with recirculated water air bleeding valve, and shell-and-tube heat exchanger is to the gas cooling down after regeneration to 40 DEG C or less.
9. the regenerated device of a kind of organic sulfur hydroconversion catalyst according to claim 1, which is characterized in that the gas
The knockout drum side of liquid/gas separator is provided with liquid level gauge, and knockout drum outlet at bottom is provided with regulating valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721879428.3U CN207745884U (en) | 2017-12-28 | 2017-12-28 | A kind of regenerated device of organic sulfur hydroconversion catalyst |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721879428.3U CN207745884U (en) | 2017-12-28 | 2017-12-28 | A kind of regenerated device of organic sulfur hydroconversion catalyst |
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| Publication Number | Publication Date |
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| CN207745884U true CN207745884U (en) | 2018-08-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111822059A (en) * | 2019-04-17 | 2020-10-27 | 中国石化工程建设有限公司 | Hydrogenation catalyst regeneration and waste gas treatment device and method |
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2017
- 2017-12-28 CN CN201721879428.3U patent/CN207745884U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111822059A (en) * | 2019-04-17 | 2020-10-27 | 中国石化工程建设有限公司 | Hydrogenation catalyst regeneration and waste gas treatment device and method |
| CN111822059B (en) * | 2019-04-17 | 2024-05-14 | 中国石化工程建设有限公司 | Hydrogenation catalyst regeneration and waste gas treatment device and method |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210105 Address after: 277000 No.68 Linquan Road, Xuecheng District, Zaozhuang City, Shandong Province Patentee after: SHANDONG WEIJIAO HOLDINGS GROUP XUECHENG ENERGY Co.,Ltd. Address before: Xuecheng energy circular economy industrial park, zouwu Town, Xuecheng District, Zaozhuang City, Shandong Province Patentee before: ZAOZHUANG XUE NENG NATURAL GAS Co.,Ltd. |