CN107321179A - The method of catalytic oxidation treatment HPPO device waste gas - Google Patents
The method of catalytic oxidation treatment HPPO device waste gas Download PDFInfo
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- CN107321179A CN107321179A CN201710647787.4A CN201710647787A CN107321179A CN 107321179 A CN107321179 A CN 107321179A CN 201710647787 A CN201710647787 A CN 201710647787A CN 107321179 A CN107321179 A CN 107321179A
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 88
- 239000002912 waste gas Substances 0.000 title claims abstract description 88
- 230000003647 oxidation Effects 0.000 title claims abstract description 83
- HWOWEGAQDKKHDR-UHFFFAOYSA-N 4-hydroxy-6-(pyridin-3-yl)-2H-pyran-2-one Chemical compound O1C(=O)C=C(O)C=C1C1=CC=CN=C1 HWOWEGAQDKKHDR-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000011282 treatment Methods 0.000 title claims abstract description 33
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 32
- 239000003054 catalyst Substances 0.000 claims abstract description 72
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000000746 purification Methods 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 18
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 10
- 229910052763 palladium Inorganic materials 0.000 claims description 9
- 229910052697 platinum Inorganic materials 0.000 claims description 9
- 229910000510 noble metal Inorganic materials 0.000 claims description 8
- 229930195733 hydrocarbon Natural products 0.000 claims description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims description 7
- 230000008929 regeneration Effects 0.000 claims description 7
- 238000011069 regeneration method Methods 0.000 claims description 7
- 239000004215 Carbon black (E152) Substances 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 1
- 239000002957 persistent organic pollutant Substances 0.000 claims 1
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 239000001294 propane Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 230000009849 deactivation Effects 0.000 description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 4
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 4
- 238000007084 catalytic combustion reaction Methods 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000006735 epoxidation reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/22—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/20—Capture or disposal of greenhouse gases of methane
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention relates to a kind of method of catalytic oxidation treatment HPPO device waste gas, mainly solve in the prior art waste gas can not qualified discharge the problem of.The present invention is by using a kind of method of catalytic oxidation treatment HPPO device waste gas, HPPO devices hydrocarbon-contained waste gas enters after heat exchanger preheating, respectively enter primary heater, secondary heater and be heated to catalytic oxidation temperature, the first catalyst oxidation reactor, the second catalyst oxidation reactor are respectively enterd again and occurs oxidation reaction, generate H2O and CO2, enter the heat exchanger after the first catalyst oxidation reactor, the exit gas mixing of the second catalyst oxidation reactor and HPPO devices hydrocarbon-contained waste gas exchange heat, NMHC concentration is down to 120mg/m in the purification waste gas after heat exchange3Hereinafter, the technical scheme of high altitude discharge preferably solves above mentioned problem, available in HPPO device exhaust-gas treatments.
Description
Technical field
The present invention relates to a kind of method of catalytic oxidation treatment HPPO device waste gas.
Background technology
Expoxy propane is a kind of wide variety of basic chemical industry raw material, in recent years demand sustainable growth.Peroxide passivation is (referred to as
HPPO methods) expoxy propane processed is compared with the chloropharin legal system expoxy propane that China now generally uses, with simple production process, dirt
The characteristics of dye is less, energy consumption is low.The tail gas that HPPO legal systems propylene oxide unit is produced is mainly derived from HPPO device techniques waste gas, true
The continuous intermittent discharge such as the emission source and storage tank discharging gas sources such as empty set system tail gas, sewage farm waste gas.Hydrocarbon-rich in tail gas
Component is mainly the hydro carbons such as propylene, methanol, expoxy propane；These waste gas hydrocarbon contents are high, and existing HPPO devices use chimney
High point directly discharge will cause severe contamination to surrounding environment.Some use thermal oxidation method, such as：Heating power is burned or heat-accumulation type hot oxygen
Change and carry out harmless treatment process, a large amount of fuel need to be consumed, cause operating cost very high；And because partial tail gas is arranged for interval
Put, exhaust gas component fluctuation, therefore also very high is required to the operating flexibility of tail gas treatment process.
It is waste gas produced essentially from following components in HPPO device production processes：1. hydrogen peroxide epoxidation propylene system
Expoxy propane HPPO device technique waste gas, 2. various tank discharge waste gas, 3. vacuum system discharge waste gas, 4. sewage farm arrange
Put waste gas.These waste gas include the volatile organic contaminant VOC such as a large amount of propylene, methanol, expoxy propane, sulfide.Need through
Harmless treatment is crossed, national standard is met《Discharge standard of air pollutants》(GB16297-1996) regulation requirement, it is non-
Methane total hydrocarbon concentration is down to 120mg/m3Hereinafter, it can just be emitted into atmospheric environment.
Waste gas processing method step is disclosed in CN 200310104990.5：Waste gas is after appropriate pretreatment, by blower fan
Supercharging, heats up by heat exchanger, electric heater, subsequently into catalytic combustion reactor, reactor outlet gas enter heat exchanger with
Waste gas exchanges heat, and steam or production hot water further occur for the waste gas after heat exchange.The heat exchanging devices of CN 200310104990.5 and plus
Hot device keeps reactor inlet temperatures stable using the method adjustment flow of by-pass line in parallel, but heater breaks down
Need deactivation maintenance or catalytic combustion reactor catalyst to need regeneration, can not just handle the hydrocarbon-contained waste gas of HPPO devices discharge,
There is exhaust treatment system without Safety Redundancy, hydrocarbon-contained waste gas is directly discharged, the problems such as polluting environment.
The content of the invention
The technical problems to be solved by the invention be in the prior art waste gas can not qualified discharge the problem of there is provided a kind of new
Catalytic oxidation treatment HPPO device waste gas method.This method has the advantages that waste gas being capable of continuous-stable qualified discharge.
To solve the above problems, the technical solution adopted by the present invention is as follows：A kind of catalytic oxidation treatment HPPO device waste gas
Method, HPPO devices hydrocarbon-contained waste gas enter heat exchanger preheating after, primary heater, secondary heater are respectively enterd, corresponding
Heater in hydrocarbonaceous heating by the exhaust gases to catalytic oxidation temperature, then respectively enter the first catalyst oxidation reactor, second urge
Oxidation device, in the presence of catalyst, with oxygen oxidation reaction, generation occur for the organic pollution in hydrocarbon-contained waste gas
H2O and CO2, the first catalyst oxidation reactor, the second catalyst oxidation reactor exit gas mixing after enter the heat exchanger with
HPPO devices hydrocarbon-contained waste gas exchanges heat, and NMHC concentration is down to 120mg/m in the purification waste gas after heat exchange3Hereinafter, high idle discharge
Put；Wherein, the catalyst oxidation reactor of primary heater-the first unit and the catalyst oxidation reactor of secondary heater-the second
Unit is operated in parallel.
In above-mentioned technical proposal, it is preferable that using two sets of heaters-catalyst oxidation reactor unit of Safety Redundancy
Parallel-connection flow, in normal operating operating mode, two sets of heater-catalyst oxidation reactor units put into operation and used, often
Cover unit each with 50% load running；When heater breaks down needs deactivation maintenance, the set unit stops fortune
OK, another set of unit operating load brings up to 100%；When catalyst oxidation reactor catalyst needs regeneration, the set list
Element device is out of service, and another set of unit operating load brings up to 100%；So as to ensure to stop in nominal situation, heater
Under the conditions of operating mode, catalyst regeneration regime, exhaust treatment system being capable of continuous and steady operation.
In above-mentioned technical proposal, it is preferable that operation of heat exchanger temperature is 0~500 DEG C；First, second heater operation temperature
Spend for 150~600 DEG C；First, second catalyst oxidation reactor operation temperature be 150~600 DEG C, operating pressure be 35~
85KPa。
In above-mentioned technical proposal, it is preferable that the catalyst used in catalyst oxidation reactor is any one selected from platinum, palladium is included
The noble metal honeycomb catalyst of two kinds of combinations of kind or platinum palladium.
In above-mentioned technical proposal, it is preferable that hydrocarbon volume content is 2000~3000mg/m in HPPO device hydrocarbon-contained waste gas3。
In above-mentioned technical proposal, it is highly preferred that operation of heat exchanger temperature is 20~400 DEG C；First, second heater operation
Temperature is 200~500 DEG C；First, second catalyst oxidation reactor operation temperature be 300~500 DEG C, operating pressure be 40~
80KPa。
In above-mentioned technical proposal, most preferably, operation of heat exchanger temperature is 30~350 DEG C；First, second heater operation
Temperature is 350~450 DEG C；First, second catalyst oxidation reactor operation temperature be 350~450 DEG C, operating pressure be 45~
75KPa。。
The present invention relates to a kind of technological process of catalytic oxidation treatment HPPO method waste gas, using 2 sets of heating of Safety Redundancy
Device-catalyst oxidation reactor unit parallel-connection flow, in normal operating operating mode, heater break down deactivation maintenance operating mode or
During catalytic combustion reactor catalyst regeneration regime, exhaust treatment system can continuous-stable operation operation, VOC clearances exist
More than 95.0%, the NMHC concentration handled in after-purification waste gas is down to 120mg/m3Hereinafter, preferable technology is achieved
Effect.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the method for the invention.
In Fig. 1,1 is heat exchanger；2 be primary heater；3 be the first catalyst oxidation reactor；4 be secondary heater；5 are
Second catalyst oxidation reactor；6 be exhaust emissions cylinder；7 be HPPO device hydrocarbon-contained waste gas pipelines；8 be heat exchanger exit pipeline；9
Enter primary heater pipeline for hydrocarbon-contained waste gas；10 be that hydrocarbon-contained waste gas enters secondary heater pipeline；11 be that hydrocarbon-contained waste gas enters
First catalyst oxidation reactor pipeline；12 be that hydrocarbon-contained waste gas enters the second catalyst oxidation reactor；13 be that the first catalysis oxidation is anti-
Answer device outlet line；14 be the second catalyst oxidation reactor outlet line；15 be purification waste gas to exchanger inlet line；16 are
Waste gas is purified to aiutage suction line.
Below by embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Embodiment
【Embodiment 1】
The present invention relates to a kind of method of catalytic oxidation treatment HPPO device waste gas, as shown in figure 1, of the present invention
HPPO device waste gas mainly contains the volatile organic contaminant VOC such as propylene, methanol, expoxy propane, sulfide, and the present invention is fully
Consider the Safety Redundancy of exhaust treatment system, 2 sets of parallel heater-catalyst oxidation reactor units are set.1. normal
Operate operating mode when, 2 sets heater-catalyst oxidation reactor units put into operation and used, often cover unit respectively with
50% load running；2. when heater breaks down needs deactivation maintenance, the set unit is out of service, another 1 set of unit
Equipment operating load brings up to 100%；3. when catalyst oxidation reactor catalyst needs regeneration, the set unit stops fortune
OK, another 1 set of unit operating load brings up to 100%；So as to realize the operation operation of exhaust treatment system continuous-stable, HPPO
The hydrocarbon-contained waste gas produced in device production process can carry out harmless treatment all the time, and treated waste gas can directly pass through row
Inflator is discharged into air, is effectively reduced live peculiar smell, it is ensured that the waste gas for being emitted into environment is met《Atmosphere pollution integrates row
Put standard》(GB16297-1996) national standard.
Technical scheme comprises the following steps：Mixed hydrocarbon-contained waste gas enters heat exchanger, with first and second
The high temperature purification waste gas of catalyst oxidation reactor parallel connection outlet carries out heat exchange, and hydrocarbon-contained waste gas is preheating to after certain temperature, point
Jin Ru not the first and second heaters.Hydrocarbonaceous heating by the exhaust gases enters back into the first He to catalytic oxidation temperature in heater
Second catalyst oxidation reactor.The wherein catalyst oxidation reactor of primary heater-the first unit and secondary heater-the second
Catalyst oxidation reactor unit is operated in parallel.Catalyst is 100% platinum noble metals honeycomb catalyst.In the effect of catalyst
Under, with oxygen oxidation reaction occurs for the organic pollution VOC in hydrocarbon-contained waste gas, generates H2O and CO2, and discharge substantial amounts of reaction
Heat.High temperature purification waste gas after 2 catalyst oxidation reactor outlets are in parallel carries substantial amounts of heat and enters heat exchanger to hydrocarbonaceous useless
Gas is heated to reclaim heat.
By taking the HPPO pilot-plants of 10,000 tons/year of production scale as an example, pending HPPO device hydrocarbon-contained waste gas technique bars
Part, is shown in Table 1.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Production scale (ten thousand tons/year) | 1 | 10 | 30 | 40 | 20 | 20 |
| Exhaust gas entrance flow (m3/h) | 1151.2 | 7022.5 | 17207.4 | 18489.6 | 9244.8 | 14045.0 |
| Entry operation gauge pressure (kPa) | 82 | 70 | 62 | 50 | 40 | 90 |
| Inlet operating temperature (DEG C) | 25 | 25 | 25 | 25 | 25 | 25 |
| VOC entrance contents (mg/m3) | 2230 | 2440 | 2560 | 2530 | 2400 | 2760 |
Using the method for the catalytic oxidation treatment HPPO device waste gas of the present invention, operation of heat exchanger temperature is 320 DEG C, heating
Device operation temperature is 520 DEG C, and catalyst oxidation reactor operation temperature is 520 DEG C, and operating pressure is 77KPa.Thus, catalysis is passed through
Organic pollution VOC, VOC clearance in oxidation reaction processing hydrocarbon-contained waste gas is more than 95.2%, the purification waste gas after processing
Middle NMHC concentration is down to 107mg/m3Hereinafter, can directly it be discharged by aiutage high-altitude.
【Embodiment 2】
According to the condition and step described in embodiment 1, production scale is changed to 100,000 tons/year of HPPO industrial installations,
Pending HPPO device hydrocarbon-contained waste gas process conditions, are shown in Table 1.
Using the method for the catalytic oxidation treatment HPPO device waste gas of the present invention, operation of heat exchanger temperature is 280 DEG C, heating
Device operation temperature is 310 DEG C, and catalyst oxidation reactor operation temperature is 310 DEG C, and operating pressure is 65KPa, and catalyst is 100%
Palladium noble metal honeycomb catalyst.Thus, organic pollution VOC, the VOC removal in hydrocarbon-contained waste gas is handled by catalytic oxidation
Rate is more than 96.3%, and NMHC concentration is down to 90mg/m in the purification waste gas after processing3Hereinafter, can be high by aiutage
It is empty directly to discharge.
【Embodiment 3】
According to the condition and step described in embodiment 1, production scale is changed to 300,000 tons/year of HPPO industrial installations,
Pending HPPO device hydrocarbon-contained waste gas process conditions, are shown in Table 1.
Using the method for the catalytic oxidation treatment HPPO device waste gas of the present invention, operation of heat exchanger temperature is 210 DEG C, heating
Device operation temperature is 295 DEG C, and catalyst oxidation reactor operation temperature is 295 DEG C, and operating pressure is 57KPa, and catalyst is 70%
Platinum and 30% palladium noble metal honeycomb catalyst.Thus, the organic pollution in hydrocarbon-contained waste gas is handled by catalytic oxidation
VOC, VOC clearance are more than 96.6%, and NMHC concentration is down to 87mg/m in the purification waste gas after processing3Hereinafter, may be used
Directly discharged by aiutage high-altitude.
【Embodiment 4】
According to the condition and step described in embodiment 1, production scale is changed to 400,000 tons/year of HPPO industrial installations,
Pending HPPO device hydrocarbon-contained waste gas process conditions, are shown in Table 1.
Using the method for the catalytic oxidation treatment HPPO device waste gas of the present invention, operation of heat exchanger temperature is 190 DEG C, heating
Device operation temperature is 290 DEG C, and catalyst oxidation reactor operation temperature is 290 DEG C, and operating pressure is 45KPa, and catalyst is 66%
Platinum and 34% palladium noble metal honeycomb catalyst.Thus, the organic pollution in hydrocarbon-contained waste gas is handled by catalytic oxidation
VOC, VOC clearance are more than 96.6%, and NMHC concentration is down to 86mg/m in the purification waste gas after processing3Hereinafter, may be used
Directly discharged by aiutage high-altitude.
【Embodiment 5】
According to the condition and step described in embodiment 1, production scale is changed to 200,000 tons/year of HPPO industrial installations,
Pending HPPO device hydrocarbon-contained waste gas process conditions, are shown in Table 1.
Using the method for the catalytic oxidation treatment HPPO device waste gas of the present invention, operation of heat exchanger temperature is 0 DEG C, heater
Operation temperature is 150 DEG C, and catalyst oxidation reactor operation temperature is 150 DEG C, and operating pressure is 35KPa, and catalyst is 45% platinum
With 55% palladium noble metal honeycomb catalyst.Thus, the organic pollution VOC in hydrocarbon-contained waste gas is handled by catalytic oxidation,
VOC clearances are more than 95.0%, and NMHC concentration is down to 120mg/m in the purification waste gas after processing3Hereinafter, it can pass through
Directly discharge in aiutage high-altitude.
【Embodiment 6】
According to the condition and step described in embodiment 1, production scale is changed to 200,000 tons/year of HPPO industrial installations,
Pending HPPO device hydrocarbon-contained waste gas process conditions, are shown in Table 1.
Using the method for the catalytic oxidation treatment HPPO device waste gas of the present invention, operation of heat exchanger temperature is 500 DEG C, heating
Device operation temperature is 600 DEG C, and catalyst oxidation reactor operation temperature is 600 DEG C, and operating pressure is 85KPa, and catalyst is 21%
Platinum and 79% palladium noble metal honeycomb catalyst.Thus, the organic pollution in hydrocarbon-contained waste gas is handled by catalytic oxidation
VOC, VOC clearance are more than 97.1%, and NMHC concentration is down to 80mg/m in the purification waste gas after processing3Hereinafter, may be used
Directly discharged by aiutage high-altitude.
Claims (7)
1. a kind of method of catalytic oxidation treatment HPPO device waste gas, HPPO devices hydrocarbon-contained waste gas enters after heat exchanger preheating, point
Not Jin Ru primary heater, secondary heater, in corresponding heater hydrocarbonaceous heating by the exhaust gases to catalytic oxidation temperature, then
Respectively enter the first catalyst oxidation reactor, the second catalyst oxidation reactor, in the presence of catalyst, having in hydrocarbon-contained waste gas
With oxygen oxidation reaction occurs for organic pollutants, generates H2O and CO2, the first catalyst oxidation reactor, the second catalyst oxidation reactor
Exit gas mixing after enter the heat exchanger and HPPO devices hydrocarbon-contained waste gas and exchange heat, non-methane in the purification waste gas after heat exchange
Total hydrocarbon concentration is down to 120mg/m3Hereinafter, high altitude discharge；Wherein, the catalyst oxidation reactor of primary heater-the first unit
It is operated in parallel with the catalyst oxidation reactor of secondary heater-the second unit.
2. the method for catalytic oxidation treatment HPPO devices waste gas according to claim 1, it is characterised in that use Safety Redundancy
Two sets of heaters-catalyst oxidation reactor unit parallel-connection flow, in normal operating operating mode, two sets of heater-catalysis
Oxidation reactor unit, which puts into operation, to be used, and often covers unit each with 50% load running；Occurs event in heater
When barrier needs to disable maintenance, the set unit is out of service, and another set of unit operating load brings up to 100%；Urging
When oxidation device catalyst needs regeneration, the set unit is out of service, and another set of unit operating load is improved
To 100%；So as to ensure under the conditions of nominal situation, heater disable operating mode, catalyst regeneration regime, exhaust treatment system is equal
Being capable of continuous and steady operation.
3. the method for catalytic oxidation treatment HPPO devices waste gas according to claim 1, it is characterised in that operation of heat exchanger temperature
Spend for 0~500 DEG C；First, second heater operation temperature is 150~600 DEG C；First, second catalyst oxidation reactor is operated
Temperature is 150~600 DEG C, and operating pressure is 35~85KPa.
4. the method for catalytic oxidation treatment HPPO devices waste gas according to claim 1, it is characterised in that catalytic oxidation
The catalyst used in device, which is selected from, includes the noble metal honeycomb catalyst that two kinds of platinum, palladium any one or platinum palladium is combined.
5. the method for catalytic oxidation treatment HPPO devices waste gas according to claim 1, it is characterised in that HPPO devices are hydrocarbonaceous
Hydrocarbon content is 2000~3000mg/m in waste gas3。
6. the method for catalytic oxidation treatment HPPO devices waste gas according to claim 3, it is characterised in that operation of heat exchanger temperature
Spend for 20~400 DEG C；First, second heater operation temperature is 200~500 DEG C；First, second catalyst oxidation reactor is operated
Temperature is 300~500 DEG C, and operating pressure is 40~80KPa.
7. the method for catalytic oxidation treatment HPPO devices waste gas according to claim 6, it is characterised in that operation of heat exchanger temperature
Spend for 30~350 DEG C；First, second heater operation temperature is 350~450 DEG C；First, second catalyst oxidation reactor is operated
Temperature is 350~450 DEG C, and operating pressure is 45~75KPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710647787.4A CN107321179A (en) | 2017-08-01 | 2017-08-01 | The method of catalytic oxidation treatment HPPO device waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710647787.4A CN107321179A (en) | 2017-08-01 | 2017-08-01 | The method of catalytic oxidation treatment HPPO device waste gas |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031277A (en) * | 2017-12-08 | 2018-05-15 | 上海科仁实业有限公司 | Waste gas containing VOC catalytic purification processing method |
| CN110368814A (en) * | 2019-08-23 | 2019-10-25 | 四川省达科特能源科技股份有限公司 | A kind of method of catalytic oxidation treatment pressure-changeable adsorption decarbonization device discharge gas |
| CN111116519A (en) * | 2018-10-30 | 2020-05-08 | 中国石油化工股份有限公司 | Alkylene oxide utilization method |
| CN112146154A (en) * | 2020-08-18 | 2020-12-29 | 广东醇氢新能源研究院有限公司 | Heating method with quick start |
| CN113209911A (en) * | 2020-01-21 | 2021-08-06 | 中国石油化工股份有限公司 | Equipment and method for microwave-assisted treatment of non-methane total hydrocarbons |
| CN117258531A (en) * | 2023-08-21 | 2023-12-22 | 宁波中瑞环保科技有限公司 | Treatment process and equipment for catalytic oxidation of ethane-containing waste gas at ignition temperature |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201815242U (en) * | 2010-07-07 | 2011-05-04 | 中国石油化工股份有限公司 | Organic waste gas catalytic oxidation purification treatment system device |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201815242U (en) * | 2010-07-07 | 2011-05-04 | 中国石油化工股份有限公司 | Organic waste gas catalytic oxidation purification treatment system device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031277A (en) * | 2017-12-08 | 2018-05-15 | 上海科仁实业有限公司 | Waste gas containing VOC catalytic purification processing method |
| CN108031277B (en) * | 2017-12-08 | 2020-07-31 | 上海汉克威自动化科技有限公司 | VOC-containing waste gas catalytic purification treatment method |
| CN111116519A (en) * | 2018-10-30 | 2020-05-08 | 中国石油化工股份有限公司 | Alkylene oxide utilization method |
| CN111116519B (en) * | 2018-10-30 | 2022-11-01 | 中国石油化工股份有限公司 | Alkylene oxide utilization method |
| CN110368814A (en) * | 2019-08-23 | 2019-10-25 | 四川省达科特能源科技股份有限公司 | A kind of method of catalytic oxidation treatment pressure-changeable adsorption decarbonization device discharge gas |
| CN113209911A (en) * | 2020-01-21 | 2021-08-06 | 中国石油化工股份有限公司 | Equipment and method for microwave-assisted treatment of non-methane total hydrocarbons |
| CN113209911B (en) * | 2020-01-21 | 2022-11-01 | 中国石油化工股份有限公司 | Equipment and method for microwave-assisted treatment of non-methane total hydrocarbons |
| CN112146154A (en) * | 2020-08-18 | 2020-12-29 | 广东醇氢新能源研究院有限公司 | Heating method with quick start |
| CN117258531A (en) * | 2023-08-21 | 2023-12-22 | 宁波中瑞环保科技有限公司 | Treatment process and equipment for catalytic oxidation of ethane-containing waste gas at ignition temperature |
| CN117258531B (en) * | 2023-08-21 | 2024-05-28 | 宁波中瑞环保科技有限公司 | Treatment process and equipment for catalytic oxidation of ethane-containing waste gas at ignition temperature |
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