CN107684805A - A kind of handling process of expoxy propane waste gas - Google Patents
A kind of handling process of expoxy propane waste gas Download PDFInfo
- Publication number
- CN107684805A CN107684805A CN201710728441.7A CN201710728441A CN107684805A CN 107684805 A CN107684805 A CN 107684805A CN 201710728441 A CN201710728441 A CN 201710728441A CN 107684805 A CN107684805 A CN 107684805A
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- CN
- China
- Prior art keywords
- waste gas
- expoxy propane
- sulfuric acid
- gas
- concentration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- 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
Abstract
The invention discloses a kind of handling process of expoxy propane waste gas, using sulfuric acid washing and carbon fiber adsorption and catalytic combustion PROCESS FOR TREATMENT high concentration expoxy propane waste gas.Acid cleaning process operating condition and influence of the NACF Dynamic Adsorption to waste gas oxypropylene PO removal effects are investigated, and two process combination effects are evaluated.As a result show, it it is 25 DEG C in temperature, PO gas inlet amounts 100L/h, sulfuric acid concentration (mass fraction) is 30%, acid amount 1.5L, during NACF loadings 10g, pickling has very high removal effect, initial concentration 800g/Nm to the PO in waste gas with carbon fiber adsorption and catalytic combustion group technology3Waste gas after processing concentration be reduced to 4mg/Nm3, reached environmental requirement, illustrated that group technology is used for the feasibility of expoxy propane exhaust-gas treatment.
Description
Technical field
The present invention relates to a kind of handling process of expoxy propane waste gas.
Background technology
Expoxy propane (PO) is widely used in the fields such as chemical industry synthesis and medical sterilization as important chemical products.PO
With low boiling point (under normal pressure boiling point be 34 DEG C), volatile, inflammable and explosive, high reaction heat and the danger such as toxic, it explodes
The limit is wide (volume of being exploded in air is 2.1%~37%), and environment and people are known from experience and cause greatly to endanger, therefore, it is necessary to appropriate
Conduct oneself well the discharge of reason polluter containing PO.Mainly there is catalytic decomposition for the processing method of this epoxide both at home and abroad at present
Method, condensation method, buffering combustion method and water absorption method etc..But these methods have certain limitation, can not fundamentally by
High concentration PO exhaust-gas treatments are to low concentration.
Therefore, using sulfuric acid as acid catalyst, NACF makees adsorbent, to acid cleaning process binding activity charcoal absorbing process
Processing high concentration expoxy propane waste gas is studied, and is had important practical significance.
The content of the invention
Goal of the invention：Using sulfuric acid washing and carbon fiber adsorption and catalytic combustion PROCESS FOR TREATMENT high concentration expoxy propane waste gas, investigate
Acid cleaning process operating condition and influence of the NACF Dynamic Adsorption to waste gas oxypropylene PO removal effects, and to two
Individual process combination effect is evaluated, it is determined that optimal exhaust-gas treatment conditional parameter.
Technical scheme：In order to solve the problems, such as tail gas at all, the technical solution adopted in the present invention is：A kind of expoxy propane gives up
The handling process of gas, liquid 100g or so in PO gas generators is kept, exhaust gas flow is controlled in 100L/ by gas flowmeter
h；Using water-bath to PO aqueous solution thermostatic controls, ensure that sample point A waste gas PO concentration is stable in certain value；The concentrated sulfuric acid is prepared
Into the sulfuric acid solution of various concentrations, control sulfuric acid solution total amount 1.5L.Caused PO waste gas enters sulfuric acid solution bubbling, through pickling
Further absorption is handled filled column, and control wriggling pump discharge fully soaks in 30mL/min, guarantee pickling filled column；Take 10g complete
The NACF of white drying is inserted in adsorption column, and the waste gas after pickling processes enters adsorption column processing, is taken in three sample points
Sample analyzes PO exhaust-gas treatment effects.
Further, the acid concentration is 5%~40%.
Further, the sulfuric acid solution temperature is 10~65 DEG C.
Further, the PO inlet gas concentrations are 100~800g/Nm3。
Beneficial effect：The handling process of a kind of expoxy propane waste gas provided by the invention, using sulfuric acid washing and activated carbon
Fibers adsorption PROCESS FOR TREATMENT high concentration expoxy propane waste gas.Investigate acid cleaning process operating condition and NACF Dynamic Adsorption pair
The influence of waste gas oxypropylene PO removal effects, and two process combination effects are evaluated.As a result show, in temperature
For 25 DEG C, PO gas inlet amount 100L/h, sulfuric acid concentration (mass fraction) is 30%, acid amount 1.5L, NACF loadings
During 10g, pickling has very high removal effect to the PO in waste gas with carbon fiber adsorption and catalytic combustion group technology, and initial concentration is
800g/Nm3Waste gas after processing concentration be reduced to 4mg/Nm3, reached environmental requirement, illustrated that group technology is used for expoxy propane
The feasibility of exhaust-gas treatment.
Embodiment
With reference to embodiment, the present invention is described in further detail：
Embodiment 1：
A kind of handling process of expoxy propane waste gas, comprises the following steps：Keep liquid 100g in PO gas generators left
The right side, exhaust gas flow is controlled in 100L/h by gas flowmeter；Using water-bath to the thermostatic control of the PO aqueous solution at 25 DEG C, ensure
Sample point A waste gas PO concentration is stable in 100g/Nm3；The concentrated sulfuric acid is configured to 10% sulfuric acid solution, controls sulfuric acid solution total amount
1.5L.Caused PO waste gas enters sulfuric acid solution bubbling, and through pickling filled column, further absorption is handled, and control wriggling pump discharge exists
30mL/min, ensure that pickling filled column fully soaks；The NACF for taking 10g to be completely dried is inserted in adsorption column, through pickling
Waste gas after processing enters adsorption column processing, in three sample point sampling analysis PO exhaust-gas treatment effects.
Embodiment 2：
A kind of handling process of expoxy propane waste gas, comprises the following steps：Keep liquid 100g in PO gas generators left
The right side, exhaust gas flow is controlled in 100L/h by gas flowmeter；Using water-bath to the thermostatic control of the PO aqueous solution at 40 DEG C, ensure
Sample point A waste gas PO concentration is stable in 500g/Nm3；The concentrated sulfuric acid is configured to 30% sulfuric acid solution, controls sulfuric acid solution total amount
1.5L.Caused PO waste gas enters sulfuric acid solution bubbling, and through pickling filled column, further absorption is handled, and control wriggling pump discharge exists
30mL/min, ensure that pickling filled column fully soaks；The NACF for taking 10g to be completely dried is inserted in adsorption column, through pickling
Waste gas after processing enters adsorption column processing, in three sample point sampling analysis PO exhaust-gas treatment effects.
Finally it should be noted that：Above example only not limits technology described in the invention to illustrate the present invention
Scheme, therefore, although this specification with reference to above-mentioned various embodiments to present invention has been detailed description, this
Field it is to be appreciated by one skilled in the art that still can be modified to the present invention or equivalent substitution, and all do not depart from this
The technical scheme of the spirit and scope of invention and improvement, it all should cover in scope of the presently claimed invention.
Claims (4)
1. a kind of handling process of expoxy propane waste gas, it is characterised in that comprise the following steps：Keep liquid in PO gas generators
Body 100g or so, exhaust gas flow is controlled in 100L/h by gas flowmeter；Using water-bath to PO aqueous solution thermostatic controls, protect
It is stable in certain value to demonstrate,prove sample point A waste gas PO concentration；The concentrated sulfuric acid is configured to the sulfuric acid solution of various concentrations, controls sulfuric acid solution
Total amount 1.5L, caused PO waste gas enter sulfuric acid solution bubbling, and through pickling filled column, further absorption is handled, and controls peristaltic pump stream
Amount fully soaks in 30mL/min, guarantee pickling filled column；The NACF for taking 10g to be completely dried is inserted in adsorption column, warp
Waste gas after pickling processes enters adsorption column processing, in three sample point sampling analysis PO exhaust-gas treatment effects.
2. expoxy propane waste gas treatment process according to claim 1, it is characterised in that：The acid concentration be 5%~
40%.
3. expoxy propane waste gas treatment process according to claim 1, it is characterised in that：The sulfuric acid solution temperature is 10
~65 DEG C.
4. expoxy propane waste gas treatment process according to claim 1, it is characterised in that：The PO inlet gas concentrations are 100
~800g/Nm3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710728441.7A CN107684805A (en) | 2017-08-23 | 2017-08-23 | A kind of handling process of expoxy propane waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710728441.7A CN107684805A (en) | 2017-08-23 | 2017-08-23 | A kind of handling process of expoxy propane waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107684805A true CN107684805A (en) | 2018-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710728441.7A Pending CN107684805A (en) | 2017-08-23 | 2017-08-23 | A kind of handling process of expoxy propane waste gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN107684805A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014227A (en) * | 2014-06-05 | 2014-09-03 | 万华化学集团股份有限公司 | Method for purifying organic waste gas containing epoxypropane or ethylene oxide |
-
2017
- 2017-08-23 CN CN201710728441.7A patent/CN107684805A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014227A (en) * | 2014-06-05 | 2014-09-03 | 万华化学集团股份有限公司 | Method for purifying organic waste gas containing epoxypropane or ethylene oxide |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180213 |
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| WD01 | Invention patent application deemed withdrawn after publication |