CN108359505A - Rear-mounted natural gas dry desulfurization device and method before a kind of - Google Patents
Rear-mounted natural gas dry desulfurization device and method before a kind of Download PDFInfo
- Publication number
- CN108359505A CN108359505A CN201810494327.7A CN201810494327A CN108359505A CN 108359505 A CN108359505 A CN 108359505A CN 201810494327 A CN201810494327 A CN 201810494327A CN 108359505 A CN108359505 A CN 108359505A
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- Prior art keywords
- digester
- valve
- outlet side
- gas
- desulfurizer
- Prior art date
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 76
- 230000023556 desulfurization Effects 0.000 title claims abstract description 76
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000003345 natural gas Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 75
- 230000001681 protective effect Effects 0.000 claims abstract description 71
- 230000003197 catalytic effect Effects 0.000 claims description 38
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 230000003319 supportive effect Effects 0.000 claims description 8
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000005864 Sulphur Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000003009 desulfurizing effect Effects 0.000 description 14
- 230000008569 process Effects 0.000 description 12
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 7
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 125000001741 organic sulfur group Chemical group 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 239000011949 solid catalyst Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- ZXYFGZNMDRNOGQ-UHFFFAOYSA-N ac1lawgt Chemical compound [S]O ZXYFGZNMDRNOGQ-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- -1 disulphide Chemical compound 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/103—Sulfur containing contaminants
Abstract
The invention discloses rear-mounted natural gas dry desulfurization devices before one kind, including the first desulfurizer and the second desulfurizer being arranged in parallel, the first digester of first desulfurizer（R‑101）, the second digester（R‑102）Gas piping setting in series or in parallel after with the first protective pot（R‑103）Gas piping be connected in series with, the third digester of second desulfurizer（R‑106）, the 4th digester（R‑105）Gas piping setting in series or in parallel after with the second protective pot（R‑107）Gas piping be connected in series with, while also disclosing that corresponding method.The high degree of automation of the present invention, structure and technique are simpler, and production efficiency is high, can be adaptively adjusted according to different operating modes, easy to operate, securely and reliably, production cost is low.
Description
Technical field
The present invention relates to a kind of natural-gas desulfurizer, it is especially a kind of before rear-mounted natural gas dry desulfurization device and
Method.
Background technology
Natural gas belongs to a kind of clean fuel, but the natural gas resource exploited, it will usually contain certain sulfide.These
Sulfide mainly exists in the form of H2S, but also small molecule mercaptan, thioether, disulphide, hydroxyl sulphur and carbon disulfide etc.
Component.The presence of sulfide can corrode production equipment and pipeline under aqueous environment, pollute environment.It is examined for safety and health
Consider, H2S contents should be less than 20mg/m3 in sulfur-bearing standard in natural gas.The usage amount of natural gas increases year by year both at home and abroad at present,
Requirement to selexol process technique also improves therewith.
The method of selexol process is divided to two kinds of wet desulphurization and dry desulfurization, and wherein dry desulfurization, which has, invests small, technique
It is simple and convenient to operate the advantage high with desulfurization precision, applicable surface is wider.Common Catalytic Dry Oxidation sulfur removal technology includes：It will
Natural gas is humidified after oxygenating through gas-liquid separator, is heated to desulfurization required temperature, then into being equipped with catalytic desulfurization
In the desulfurizing tower of agent, so that sulfur content reaches requirement and is delivered to follow up device after catalytic desulfurization.This process is catalysis oxidation
Process, desulfurization product are elemental sulfur and higher boiling polysulfide.Desulfurizing agent applied to dry desulfurization mainly has zinc oxide, oxygen
Change the solid desulfurating agents such as iron, activated carbon and molecular sieve.
In the prior art, the patent of invention of application number 200910217725.5 discloses a kind of natural gas fine desulfurization process by dry work
Skill, using three-level normal-temperature natural-gas fine desulfurization process by dry：First order desulfurization is thick depriving hydrogen sulphide, using normal temperature iron oxide desulfurizing agent,
Second level fine de-sulfur hydrogen reactor, using normal temp zinc oxide desulfuriging agent, third level essence removal of organic sulfur reactor uses room temperature point
Son sieve desulfurizing agent, normal temperature iron oxide desulfurizing agent and room temperature molecular sieve desulfurizer can regenerate reuse, the first stage reactor, the
Second reactor and third stage reactor, it is necessary to be out that one is standby, which can extend the regeneration week of organic sulfur absorbent
Phase improves desulfurization precision, but structure and complex process, and the degree of automation is low, for the narrow application range of different operating modes.
In addition, domestic existing natural-gas desulfurizer is using top-down selexol process mode, in reactor
The desulfurizing agent bed stressor layer in portion is big, is easy pressure break catalyst, catalyst is caused to crush, and not only influences catalyst amount and product is de-
Sulphur effect also results in desulfurizing agent and crushes into bottom pipe, leads to line clogging, simultaneously because pressure is from top to bottom, therefore
It is easy crushing supportive grid, reduces reactor safety coefficient.
Therefore, it is preferably purified natural gas, adapts to the demand that domestic and international market for natural gas scale increases, should research and develop more
For safe efficient, environmentally friendly environmental-friendly natural desulfurization equipment and technique.
Invention content
In view of the deficiencies of the prior art, the present invention provides it is a kind of it is simple in structure, safe and efficient and applied widely before
Rear-mounted natural gas dry desulfurization device, and describe the application method of the device.
The technical scheme is that：
Rear-mounted natural gas dry desulfurization device before a kind of, including the first desulfurizer being arranged in parallel and the second desulfurization dress
It sets, it is characterised in that：First desulfurizer includes the first digester（R-101）, the second digester（R-102）It is protected with first
Protect tank（R-103）, first digester（R-101）, the second digester（R-102）Gas piping setting in series or in parallel
Afterwards with the first protective pot（R-103）Gas piping be connected in series with, first digester（R-101）, the second digester（R-
102）With the first protective pot（R-103）Outlet tube road be connected to the first outlet end；
Second desulfurizer includes third digester（R-106）, the 4th digester（R-105）With the second protective pot（R-
107）, the third digester（R-106）, the 4th digester（R-105）Gas piping setting in series or in parallel after with
Two protective pots（R-107）Gas piping be connected in series with, the third digester（R-106）, the 4th digester（R-105）With
Two protective pots（R-107）Outlet tube road be connected to the second outlet end；First desulfurizer and the second desulfurizer
Air inlet pipeline is connect with total inlet end, the first protective pot（R-103）With the second protective pot（R-107）Outlet pipe with always
Outlet side connects.
Total inlet end inlet end piping connection with valve V11, valve V21 and valve V4 respectively, valve V11's goes out
The gas end outlet side piping connection with the inlet end of valve V12 and valve V24 respectively, the outlet side of valve V21 respectively with valve
The outlet side of V14 and the inlet end piping connection of valve V22, the outlet side of valve V12 are connected to the first digester（R-101）Under
Portion, the first digester（R-101）The inlet end piping connection at top and valve V13, the outlet side of valve V13 respectively with valve
The outlet side of the inlet end piping connection of V14 and valve V16, valve V22 is connected to the second digester（R-102）Lower part, second
Digester（R-102）The inlet end piping connection at top and valve V23, the outlet side of valve V23 respectively with valve V24 and valve
The inlet end of the inlet end piping connection of V26, valve V26 is connected with the outlet side of valve V16 simultaneously, the outlet side of valve V26
It is connected to the first protective pot（R-103）Lower part, the first protective pot（R-103）The outlet pipe at top, which is sequentially connected in series, is provided with valve
V32, flowmeter a, valve V33 and valve V34, the first digester（R-101）, the second digester（R-102）With the first protective pot
（R-103）Outlet tube road be respectively arranged with valve V15, valve V25 and valve V31；
The outlet side of the valve V4 inlet end piping connection with the inlet end of valve V61 and valve V51 respectively, valve V61
The outlet side outlet side piping connection with the inlet end of valve V62 and valve V54 respectively, the outlet side of valve V51 respectively with
The outlet side of valve V64 and the inlet end piping connection of valve V52, the outlet side of valve V62 are connected to third digester（R-
106）Lower part, third digester（R-106）The inlet end piping connection at top and valve V63, the outlet side of valve V63 respectively with
The outlet side of the inlet end piping connection of valve V64 and valve V66, valve V52 is connected to the 4th digester（R-105）Lower part,
4th digester（R-105）The inlet end piping connection at top and valve V53, the outlet side of valve V53 respectively with valve V54 and
The inlet end of the inlet end piping connection of valve V56, valve V56 is connected with the outlet side of valve V66 simultaneously, and valve V56's goes out
Gas end is connected to the second protective pot（R-107）Lower part, the second protective pot（R-107）The outlet pipe at top, which is sequentially connected in series, to be provided with
Valve V72 and flowmeter b, and the pipeline between valve V72 and flowmeter b is connected with the pipeline of the outlet sides valve V34, third is de-
Sulphur tank（R-106）, the 4th digester（R-105）With the second protective pot（R-107）Outlet tube road be respectively arranged with valve
V65, valve V55 and valve V71.
Each tank body of first desulfurizer and the second desulfurizer includes cylinder, and the cylinder up and down divide by both sides
It is not provided with upper cover and low head, support component, top manhole, side manhole, the setting of cylinder lower part are provided on the outside of cylinder
There is supportive grid, solid catalyst bed is provided in the supportive grid, basket filter device is provided at the top of cylinder, it is each
The structure and size all same of cylinder assembly, first desulfurizer and the second desulfurizer pass through support element and/or clamping
Part is equipped with air inlet pipeline, outlet pipe, inlet pipeline, blowdown piping and outlet tube road pipeline, be connected between cylinder into
Air pipe outlet side is provided with gas diffuser.
Desulfurizer is at least 2 sets of uses and is arranged in parallel；Tricks is unlimited, is all made of and is arranged in parallel.
The method of rear-mounted natural gas dry desulfurization device, includes the following steps before a kind of：
S1 is automatically controlled by valve so that the first digester in the first desulfurizer（R-101）, the second digester（R-
102）To be arranged in series, being arranged in parallel or being used only one of digester so that the third digester in the second desulfurizer
（R-106）, the 4th digester（R-105）It is arranged in series, is arranged in parallel or is used only one of digester, and the first desulfurization fills
It sets and is in use state at least one of the second desulfurizer；
S2 is passed through the correspondence tank body that unstripped gas passes through successively in the first desulfurizer and/or the second desulfurizer, obtains up to standard
Natural gas；
Tank body treated liquid in S3 above-mentioned steps, is discharged by the first outlet end and/or the second outlet end, then recycles
Wherein sulfide, and carry out qualified discharge after handling waste water.
In first desulfurizer, the first digester（R-101）, the second digester（R-102）Using only one place
Manage step, including following sub-step：
S11 unstripped gas is from the first digester（R-101）Lower part flows into, after fixed bed catalytic desulfurization, from the first digester
（R-101）Top is flowed out or unstripped gas flows into the second digester（R-102）Carry out catalytic desulfurization processing；
Treated that gas is passed directly into the first protective pot by S12（R-103）Lower part, after fixed bed catalytic desulfurization, then from
One protective pot（R-103）Top is flowed out, and total outlet side is finally flowed to.
In second desulfurizer, third digester（R-106）, the 4th digester（R-105）Using only one place
Manage step, including following sub-step：
S11 unstripped gas is from third digester（R-106）Lower part flows into, after fixed bed catalytic desulfurization, from third digester
（R-106）Top is flowed out or unstripped gas flows into the 4th digester（R-105）Carry out catalytic desulfurization processing；
Treated that gas is passed directly into the second protective pot by S12（R-107）Lower part, after fixed bed catalytic desulfurization, then from
Two protective pots（R-107）Top is flowed out, and total outlet side is finally flowed to.
In first desulfurizer, the first digester（R-101）, the second digester（R-102）When using being arranged in series
Processing step, including following sub-step：
S11 unstripped gas is from the first digester（R-101）Lower part flows into, after fixed bed catalytic desulfurization, from the first digester
（R-101）Top is flowed out or unstripped gas flows into the second digester（R-102）Processing, is then transferred to step S12；
Treated that gas is passed directly into the second digester by S12（R-102）Lower part, after fixed bed catalytic desulfurization, from second
Digester（R-102）Top is flowed out, when step S11 is the second digester（R-102）When, this step enters the first digester（R-
101）, then it is transferred to step S13；
Treated that gas is passed directly into the first protective pot by S13（R-103）Lower part, after fixed bed catalytic desulfurization, then from
One protective pot（R-103）Top is flowed out, and total outlet side is finally flowed to.
In second desulfurizer, third digester（R-106）, the 4th digester（R-105）When using being arranged in series
Processing step, including following sub-step：
S11 unstripped gas is from third digester（R-106）Lower part flows into, after fixed bed catalytic desulfurization, from third digester
（R-106）Top is flowed out or unstripped gas flows into the 4th digester（R-105）Processing, is then transferred to step S13；
Treated that gas is passed directly into the 4th digester by S12（R-105）Lower part, after fixed bed catalytic desulfurization, from the 4th
Digester（R-105）Top is flowed out, when step S11 is the 4th digester（R-105）When, this step enters third digester（R-
106）, then it is transferred to step S13；
Treated that gas is passed directly into the second protective pot by S13（R-107）Lower part, after fixed bed catalytic desulfurization, then from
Two protective pots（R-107）Top is flowed out, and total outlet side is finally flowed to.
In first desulfurizer, the first digester（R-101）, the second digester（R-102）When using being arranged in parallel
Processing step, including following sub-step：
S11 unstripped gas is simultaneously from the first digester（R-101）With the second digester（R-102）Lower part flows into, and is urged through fixed bed
After changing desulfurization, from the first digester（R-101）With the second digester（R-102）It flows out on top；
Treated that gas is passed directly into the first protective pot by S12（R-103）Lower part, after fixed bed catalytic desulfurization, then from
One protective pot（R-103）Top is flowed out, and total outlet side is finally flowed to.
In second desulfurizer, third digester（R-106）, the 4th digester（R-105）When using being arranged in parallel
Processing step, including following sub-step：
S11 unstripped gas is simultaneously from third digester（R-106）With the 4th digester（R-105）Lower part flows into, and is urged through fixed bed
After changing desulfurization, from third digester（R-106）With the 4th digester（R-105）It flows out on top；
Treated that gas is passed directly into the second protective pot by S12（R-107）Lower part, after fixed bed catalytic desulfurization, then from
Two protective pots（R-107）Top is flowed out, and total outlet side is finally flowed to.
Beneficial effects of the present invention are：
1, high degree of automation, structure and technique are simpler, and production efficiency is high, can be adaptively adjusted according to different operating modes, grasp
Facilitate, securely and reliably, production cost is low.
2, from bottom to top, with the increase of adsorption of hydrogen sulfide amount, pressure difference increases gas, but from below to up, therefore pressure is
The load of supportive grid will not be increased, increase security insurance coefficient.
3, top gas phase outlet uses interior filtering basket type filter device, ensures that desulfurization does not enter in subsequent pipeline, under the influence of
Swim device.
4, gas will not cause desulfurizing agent powder in the increased situation fracturing desulfurizing agent of desulfurizing agent bed pressure drop from bottom to top
It is broken to enter bottom pipe, cause to block pipeline.
United States advanced is considered as when 5, designing unloads agent mode, and the agent vehicle that gives up, safety are sucked from top manhole by desulfurizing agent
Environmental protection.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings：
Embodiment 1
With reference to attached drawing 1, it is a kind of before rear-mounted natural gas dry desulfurization device, including the first desulfurizer for being arranged in parallel with
Second desulfurizer, it is characterised in that：First desulfurizer includes the first digester（R-101）, the second digester（R-
102）With the first protective pot（R-103）, first digester（R-101）, the second digester（R-102）Gas piping series connection
Or it is arranged in parallel rear and the first protective pot（R-103）Gas piping be connected in series with, first digester（R-101）,
Two digesters（R-102）With the first protective pot（R-103）Outlet tube road be connected to the first outlet end；
Second desulfurizer includes third digester（R-106）, the 4th digester（R-105）With the second protective pot（R-
107）, the third digester（R-106）, the 4th digester（R-105）Gas piping setting in series or in parallel after with
Two protective pots（R-107）Gas piping be connected in series with, the third digester（R-106）, the 4th digester（R-105）With
Two protective pots（R-107）Outlet tube road be connected to the second outlet end；
The air inlet pipeline of first desulfurizer and the second desulfurizer is connect with total inlet end, the first protective pot（R-
103）With the second protective pot（R-107）Outlet pipe connect with total outlet side.
First digester（R-101）, the second digester（R-102）With the first protective pot（R-103）Mounted on first
On pedestal, the first digester（R-101）With the second digester（R-102）Between, the second digester（R-102）With the first protective pot
（R-103）If it is respectively provided with dried layer platform between, staircase is provided on the platform, the staircase of the platform of bottom is connected to the first base
Seat, the third digester（R-106）, the 4th digester（R-105）With the second protective pot（R-107）Mounted on the second pedestal
On, third digester（R-106）, the 4th digester（R-105）Between, the 4th digester（R-105）With the second protective pot（R-
107）If it is respectively provided with dried layer platform between, staircase is provided on the platform, the staircase of the platform of bottom is connected to the second pedestal.
Each tank body of first desulfurizer and the second desulfurizer includes cylinder, and the cylinder up and down divide by both sides
It is not provided with upper cover and low head, support component, top manhole, side manhole, the setting of cylinder lower part are provided on the outside of cylinder
There is supportive grid, solid catalyst bed is provided in the supportive grid, basket filter device is provided at the top of cylinder, it is each
The structure and size all same of cylinder assembly；The support component includes supporting leg, bearing, support element, clamping element（Such as pipe clamp）Deng.
First desulfurizer and the second desulfurizer are equipped with air inlet pipeline by support element and/or clamping element, go out
The pipelines such as air pipe, inlet pipeline, blowdown piping and outlet tube road；The air inlet pipeline outlet side being connected between cylinder is provided with
Gas diffuser, the gas diffuser can be the tubular structure to crack in side wall.
Total inlet end inlet end piping connection with valve V11, valve V21 and valve V4 respectively, valve V11's goes out
The gas end outlet side piping connection with the inlet end of valve V12 and valve V24 respectively, the outlet side of valve V21 respectively with valve
The outlet side of V14 and the inlet end piping connection of valve V22, the outlet side of valve V12 are connected to the first digester（R-101）Under
Portion, the first digester（R-101）The inlet end piping connection at top and valve V13, the outlet side of valve V13 respectively with valve
The outlet side of the inlet end piping connection of V14 and valve V16, valve V22 is connected to the second digester（R-102）Lower part, second
Digester（R-102）The inlet end piping connection at top and valve V23, the outlet side of valve V23 respectively with valve V24 and valve
The inlet end of the inlet end piping connection of V26, valve V26 is connected with the outlet side of valve V16 simultaneously, the outlet side of valve V26
It is connected to the first protective pot（R-103）Lower part, the first protective pot（R-103）The outlet pipe at top, which is sequentially connected in series, is provided with valve
V32, flowmeter a, valve V33 and valve V34, the first digester（R-101）, the second digester（R-102）With the first protective pot
（R-103）Outlet tube road be respectively arranged with valve V15, valve V25 and valve V31；
The outlet side of the valve V4 inlet end piping connection with the inlet end of valve V61 and valve V51 respectively, valve V61
The outlet side outlet side piping connection with the inlet end of valve V62 and valve V54 respectively, the outlet side of valve V51 respectively with
The outlet side of valve V64 and the inlet end piping connection of valve V52, the outlet side of valve V62 are connected to third digester（R-
106）Lower part, third digester（R-106）The inlet end piping connection at top and valve V63, the outlet side of valve V63 respectively with
The outlet side of the inlet end piping connection of valve V64 and valve V66, valve V52 is connected to the 4th digester（R-105）Lower part,
4th digester（R-105）The inlet end piping connection at top and valve V53, the outlet side of valve V53 respectively with valve V54 and
The inlet end of the inlet end piping connection of valve V56, valve V56 is connected with the outlet side of valve V66 simultaneously, and valve V56's goes out
Gas end is connected to the second protective pot（R-107）Lower part, the second protective pot（R-107）The outlet pipe at top, which is sequentially connected in series, to be provided with
Valve V72 and flowmeter b, and the pipeline between valve V72 and flowmeter b is connected with the pipeline of the outlet sides valve V34, third is de-
Sulphur tank（R-106）, the 4th digester（R-105）With the second protective pot（R-107）Outlet tube road be respectively arranged with valve
V65, valve V55 and valve V71.
Embodiment 2
The method of rear-mounted natural gas dry desulfurization device, includes the following steps before a kind of（Equipment connection mode such as embodiment
1）：
Process is as follows：
S1 is automatically controlled by valve so that the first digester in the first desulfurizer（R-101）, the second digester（R-
102）To be arranged in series, being arranged in parallel or being used only one of digester so that the third digester in the second desulfurizer
（R-106）, the 4th digester（R-105）It is arranged in series, is arranged in parallel or is used only one of digester, and the first desulfurization fills
It sets and is in use state at least one of the second desulfurizer；
S2 is passed through the correspondence tank body that unstripped gas passes through successively in the first desulfurizer and/or the second desulfurizer, obtains up to standard
Natural gas；
Tank body treated liquid in S3 above-mentioned steps, is discharged by the first outlet end and/or the second outlet end, then recycles
Wherein sulfide, and carry out qualified discharge after handling waste water.
In first desulfurizer, the first digester（R-101）, the second digester（R-102）Using only one place
Manage step, including following sub-step：
S11 unstripped gas is from the first digester（R-101）Lower part flows into, after fixed bed catalytic desulfurization, from the first digester
（R-101）Top is flowed out or unstripped gas flows into the second digester（R-102）Carry out catalytic desulfurization processing；
Treated that gas is passed directly into the first protective pot by S12（R-103）Lower part, after fixed bed catalytic desulfurization, then from
One protective pot（R-103）Top is flowed out, and total outlet side is finally flowed to.
In second desulfurizer, third digester（R-106）, the 4th digester（R-105）Using only one place
Manage step, including following sub-step：
S11 unstripped gas is from third digester（R-106）Lower part flows into, after fixed bed catalytic desulfurization, from third digester
（R-106）Top is flowed out or unstripped gas flows into the 4th digester（R-105）Carry out catalytic desulfurization processing；
Treated that gas is passed directly into the second protective pot by S12（R-107）Lower part, after fixed bed catalytic desulfurization, then from
Two protective pots（R-107）Top is flowed out, and total outlet side is finally flowed to.
In first desulfurizer, the first digester（R-101）, the second digester（R-102）When using being arranged in series
Processing step, including following sub-step：
S11 unstripped gas is from the first digester（R-101）Lower part flows into, after fixed bed catalytic desulfurization, from the first digester
（R-101）Top is flowed out or unstripped gas flows into the second digester（R-102）Processing, is then transferred to step S12；
Treated that gas is passed directly into the second digester by S12（R-102）Lower part, after fixed bed catalytic desulfurization, from second
Digester（R-102）Top is flowed out, when step S11 is the second digester（R-102）When, this step enters the first digester（R-
101）, then it is transferred to step S13；
Treated that gas is passed directly into the first protective pot by S13（R-103）Lower part, after fixed bed catalytic desulfurization, then from
One protective pot（R-103）Top is flowed out, and total outlet side is finally flowed to.
In second desulfurizer, third digester（R-106）, the 4th digester（R-105）When using being arranged in series
Processing step, including following sub-step：
S11 unstripped gas is from third digester（R-106）Lower part flows into, after fixed bed catalytic desulfurization, from third digester
（R-106）Top is flowed out or unstripped gas flows into the 4th digester（R-105）Processing, is then transferred to step S13；
Treated that gas is passed directly into the 4th digester by S12（R-105）Lower part, after fixed bed catalytic desulfurization, from the 4th
Digester（R-105）Top is flowed out, when step S11 is the 4th digester（R-105）When, this step enters third digester（R-
106）, then it is transferred to step S13；
Treated that gas is passed directly into the second protective pot by S13（R-107）Lower part, after fixed bed catalytic desulfurization, then from
Two protective pots（R-107）Top is flowed out, and total outlet side is finally flowed to.
In first desulfurizer, the first digester（R-101）, the second digester（R-102）When using being arranged in parallel
Processing step, including following sub-step：
S11 unstripped gas is simultaneously from the first digester（R-101）With the second digester（R-102）Lower part flows into, and is urged through fixed bed
After changing desulfurization, from the first digester（R-101）With the second digester（R-102）It flows out on top；
Treated that gas is passed directly into the first protective pot by S12（R-103）Lower part, after fixed bed catalytic desulfurization, then from
One protective pot（R-103）Top is flowed out, and total outlet side is finally flowed to.
In second desulfurizer, third digester（R-106）, the 4th digester（R-105）When using being arranged in parallel
Processing step, including following sub-step：
S11 unstripped gas is simultaneously from third digester（R-106）With the 4th digester（R-105）Lower part flows into, and is urged through fixed bed
After changing desulfurization, from third digester（R-106）With the 4th digester（R-105）It flows out on top；
Treated that gas is passed directly into the second protective pot by S12（R-107）Lower part, after fixed bed catalytic desulfurization, then from
Two protective pots（R-107）Top is flowed out, and total outlet side is finally flowed to.
The present invention technical process be：The natural gas of unstripped gas half is most from bottom to top into digester R101
Hydrogen sulfide is adsorbed, and the natural gas after preliminary purification enters the bottoms R102, and the hydrogen sulfide in natural gas is further absorbed, outlet
Meet 10mg/m3, to meet the maximal efficiency of desulfurizing agent, still ensures that desulfurization precision when replacing agent, be subsequently added to
Protective pot R103.When digester R101 outlet sampling analysis concentration of hydrogen sulfide and when being not much different of import, R101 tanks are cut
Go out running process, replacement desulfurizing agent is carried out to R101 tanks, after the completion of replacement, then cuts running process, as the follow-up of R102 tanks
Tank is run, and the design concept of preceding postposition is made full use of.Equally after R102 adsorption saturations, carried out using same method
Desulfurizing agent is replaced, and so on, circulate operation.
The above embodiments and description only illustrate the principle of the present invention and most preferred embodiment, is not departing from this
Under the premise of spirit and range, various changes and improvements may be made to the invention, these changes and improvements both fall within requirement and protect
In the scope of the invention of shield.
Claims (8)
1. rear-mounted natural gas dry desulfurization device before a kind of, the desulfurizer includes the first digester（R-101）, second
Digester（R-102）With the first protective pot（R-103）, it is characterised in that：First digester（R-101）, the second digester
（R-102）Gas piping setting in series or in parallel after with the first protective pot（R-103）Gas piping be connected in series with, it is described
First digester（R-101）, the second digester（R-102）With the first protective pot（R-103）Outlet tube road be connected to out liquid
End, the air inlet pipeline of the desulfurizer are connect with total inlet end, the first protective pot（R-103）Outlet pipe and total outlet side
Connection.
2. rear-mounted natural gas dry desulfurization device before according to claim 1, it is characterised in that：Total inlet end
Respectively with the inlet end piping connection of valve V11 and valve V21, the outlet side of valve V11 respectively with the inlet end of valve V12 and
The outlet side piping connection of valve V24, the outlet side of the valve V21 inlet end with the outlet side of valve V14 and valve V22 respectively
The outlet side of piping connection, valve V12 is connected to the first digester（R-101）Lower part, the first digester（R-101）Top and valve
The inlet end piping connection of door V13, the outlet side of the valve V13 inlet end piping connection with valve V14 and valve V16 respectively,
The outlet side of valve V22 is connected to the second digester（R-102）Lower part, the second digester（R-102）Top and valve V23 into
Gas end piping connection, the outlet side of the valve V23 inlet end piping connection with valve V24 and valve V26 respectively, valve V26's
Inlet end is connected with the outlet side of valve V16 simultaneously, and the outlet side of valve V26 is connected to the first protective pot（R-103）Lower part, the
One protective pot（R-103）The outlet pipe at top, which is sequentially connected in series, is provided with valve V32, flowmeter a, valve V33 and valve V34,
The outlet sides valve V34 are connected to total outlet side, even the first digester（R-101）, the second digester（R-102）With the first protective pot
（R-103）Outlet tube road be respectively arranged with valve V15, valve V25 and valve V31.
3. rear-mounted natural gas dry desulfurization device before according to claim 1, it is characterised in that：The desulfurizer
Each tank body include cylinder, the cylinder is respectively arranged with upper cover and low head in both sides up and down, is provided on the outside of cylinder
Support component, top manhole, side manhole, cylinder lower part are provided with supportive grid, and being provided with solid in the supportive grid urges
Agent bed, cylinder top are provided with basket filter device, the structure and size all same of each cylinder assembly, the desulfurization dress
It sets and air inlet pipeline, outlet pipe, inlet pipeline, blowdown piping and outlet tube road pipe is equipped with by support element and/or clamping element
Road, the air inlet pipeline outlet side being connected between cylinder are provided with gas diffuser.
4. according to rear-mounted natural gas dry desulfurization device before described in claim 1-3 any one, it is characterised in that：It is de-
Sulphur device is at least 2 sets of uses and is arranged in parallel.
5. the method for rear-mounted natural gas dry desulfurization device, includes the following steps before a kind of：
S1 is automatically controlled by valve so that the first digester in desulfurizer（R-101）, the second digester（R-102）
To be arranged in series, being arranged in parallel or being used only one of digester；
S2 is passed through the correspondence tank body that unstripped gas passes through successively in desulfurizer, obtains natural gas up to standard；
Tank body treated liquid, is discharged by outlet end in S3 above-mentioned steps, then recycles wherein sulfide, and handles useless
Qualified discharge is carried out after water.
6. the method for rear-mounted natural gas dry desulfurization device, includes the following steps before according to claim 5：It is described
In desulfurizer, the first digester（R-101）, the second digester（R-102）Using only one processing step, including following son
Step：
S11 unstripped gas is from the first digester（R-101）Lower part flows into, after fixed bed catalytic desulfurization, from the first digester
（R-101）Top is flowed out or unstripped gas flows into the second digester（R-102）Carry out catalytic desulfurization processing；
Treated that gas is passed directly into the first protective pot by S12（R-103）Lower part, after fixed bed catalytic desulfurization, then from
One protective pot（R-103）Top is flowed out, and total outlet side is finally flowed to.
7. the method for rear-mounted natural gas dry desulfurization device, includes the following steps before according to claim 5：It is described
In desulfurizer, the first digester（R-101）, the second digester（R-102）Using processing step when being arranged in series, including such as
Lower sub-step：
S11 unstripped gas is from the first digester（R-101）Lower part flows into, after fixed bed catalytic desulfurization, from the first digester
（R-101）Top is flowed out or unstripped gas flows into the second digester（R-102）Processing, is then transferred to step S12；
Treated that gas is passed directly into the second digester by S12（R-102）Lower part, after fixed bed catalytic desulfurization, from second
Digester（R-102）Top is flowed out, when step S11 is the second digester（R-102）When, this step enters the first digester（R-
101）, then it is transferred to step S13；
Treated that gas is passed directly into the first protective pot by S13（R-103）Lower part, after fixed bed catalytic desulfurization, then from
One protective pot（R-103）Top is flowed out, and total outlet side is finally flowed to.
8. the method for rear-mounted natural gas dry desulfurization device, includes the following steps before according to claim 5：It is described
In desulfurizer, the first digester（R-101）, the second digester（R-102）Using processing step when being arranged in parallel, including such as
Lower sub-step：
S11 unstripped gas is simultaneously from the first digester（R-101）With the second digester（R-102）Lower part flows into, and is urged through fixed bed
After changing desulfurization, from the first digester（R-101）With the second digester（R-102）It flows out on top；
Treated that gas is passed directly into the first protective pot by S12（R-103）Lower part, after fixed bed catalytic desulfurization, then from
One protective pot（R-103）Top is flowed out, and total outlet side is finally flowed to.
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| CN201810494327.7A CN108359505A (en) | 2018-05-22 | 2018-05-22 | Rear-mounted natural gas dry desulfurization device and method before a kind of |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810494327.7A CN108359505A (en) | 2018-05-22 | 2018-05-22 | Rear-mounted natural gas dry desulfurization device and method before a kind of |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108998070A (en) * | 2018-08-29 | 2018-12-14 | 镇海石化工程股份有限公司 | Crude oil loads oil-gas recovery method and recovery system onto ship |
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| CN204211707U (en) * | 2014-11-05 | 2015-03-18 | 新奥能源贸易有限公司 | Utilize the device of coke-oven gas and blast furnace gas combination producing Sweet natural gas and liquefied ammonia |
| CN208814962U (en) * | 2018-05-22 | 2019-05-03 | 珠海巨涛海洋石油服务有限公司 | Rear-mounted natural gas dry desulfurization device before a kind of |
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