CN105413398A - Tertiary-butanol-containing gas recycling method - Google Patents
Tertiary-butanol-containing gas recycling method Download PDFInfo
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- CN105413398A CN105413398A CN201510770623.1A CN201510770623A CN105413398A CN 105413398 A CN105413398 A CN 105413398A CN 201510770623 A CN201510770623 A CN 201510770623A CN 105413398 A CN105413398 A CN 105413398A
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- Prior art keywords
- absorption tower
- tert
- butyl alcohol
- absorbing liquid
- butanol
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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
- B01D53/1418—Recovery of products
-
- 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
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a tertiary-butanol-containing gas recycling method. The method includes the following steps that tertiary-butanol-containing gas and absorption liquid are in reverse flow contact in absorption towers, and packing layers are arranged inside the absorption towers; the tertiary-butanol-containing gas enters the absorption towers from the bottoms of the absorption towers, the absorption liquid enters the absorption towers from the tops of the absorption towers, the tertiary-butanol-containing gas and the absorption liquid are in reverse flow contact in the packing layers of the absorption towers, and the absorption liquid absorbs tertiary butanol in the tertiary-butanol-containing gas and then flows into liquid storage tanks located below the absorption towers. The method is used for recycling the tertiary-butanol-containing gas generated in the vehicle loading or ship loading or storage tank breathing process of tertiary butanol products of chemical enterprises, emission exhaust meets the newest national environment protection standard accordingly, and product waste is avoided; meanwhile, environment pollution and health hidden dangers caused by the tertiary-butanol-containing gas can be reduced, and good economic benefits are achieved; meanwhile, the technology has the advantages of being small in occupied area, low in energy consumption and simple in flow.
Description
Technical field
The present invention relates to a kind of tert-butyl alcohol Gas recovering method, the tert-butyl alcohol gas that the tert-butyl alcohol product for reclaiming chemical enterprise produces in entrucking, shipment or storage tank respiratory.
Background technology
The tert-butyl alcohol is a kind of important industrial chemicals, is widely used in the industries such as synthetic resin solvent, paint solvent, synthetic pesticide and denatured alcohol.The tert-butyl alcohol product of current most of chemical enterprise all directly enters air at the tert-butyl alcohol gas stored and the haulage stage produces, and causes a large amount of product wastes, and causes potential safety hazard to environment and health to a certain extent.But be at present mostly only in the laboratory research stage for the tert-butyl alcohol retracting device containing tert-butyl alcohol gas produced that volatilize in entrucking, shipment and storage tank respiratory, seldom carry out commercial Application, the recovery of the tert-butyl alcohol tail gas only having minority to be applied to produce in tert-butyl alcohol preparation process.CN201320483526.0 discloses a kind of tert-butyl alcohol device for recovering tail gas, the recovery of the tail gas containing tert-butyl alcohol product produced when preparing for the tert-butyl alcohol, mainly comprise tail gas buffer, hot Media Oven, tail gas buffer connects condenser by pipeline, condenser connects emptying surge tank by pipeline, emptying surge tank top connects hot Media Oven by pipeline, and emptying surge tank bottom connects heavy constituent retracting device by pipeline.Though this technology can reclaim containing most tert-butyl alcohol product in tert-butyl alcohol tail gas, mainly for the tert-butyl alcohol tail gas that tert-butyl alcohol preparation technology produces, application has limitation, and this technology not necessarily can ensure the qualified discharge of tert-butyl alcohol gas.
Summary of the invention
Based on above-mentioned technical problem, the invention provides a kind of tert-butyl alcohol Gas recovering method.
The technology used in the present invention solution is:
A kind of tert-butyl alcohol Gas recovering method, comprises the following steps: will carry out counter current contacting containing tert-butyl alcohol gas and absorbing liquid in absorption tower, the inside on absorption tower is provided with packing layer; Bottom absorption tower, absorption tower is entered into containing tert-butyl alcohol gas, absorbing liquid enters into absorption tower from top, absorption tower, in the packing layer on absorption tower, counter current contacting is carried out containing tert-butyl alcohol gas and absorbing liquid, absorbing liquid absorbs containing the tert-butyl alcohol in tert-butyl alcohol gas, flows into the hopper be arranged in below absorption tower subsequently.
Preferably, the absorbing liquid in described hopper is circulated to the top on absorption tower by pipeline.
Preferably, described absorption tower arranges multiple, described containing tert-butyl alcohol gas successively through multiple absorption tower, include on each absorption tower tert-butyl alcohol gas all with absorbing liquid counter current contacting.
Preferably, the below on each absorption tower described all arranges a hopper, is connected carry out absorbing liquid transfer between adjacent hopper by pipeline.
Preferably, described absorbing liquid is t-butanol solution or water.
Preferably, described absorption tower arranges 4 altogether, be respectively first grade absorption tower, two-level absorption tower, three grades of absorption towers and level Four absorption tower, containing tert-butyl alcohol gas from first order absorption top of tower out after enter two-level absorption tower, three grades of absorption towers and level Four absorption tower successively, tail gas finally up to standard is directly entered in air by the top on level Four absorption tower.
Preferably, the below of first grade absorption tower is provided with one-level hopper, the absorbing liquid in one-level hopper is circulated to the top of first grade absorption tower by the first circulation line; The below of two-level absorption tower is provided with secondary hopper, and the absorbing liquid in secondary hopper is circulated to the top of two-level absorption tower by the second circulation line; Be provided with three grades of hoppers in the below on three grades of absorption towers, the absorbing liquid in three grades of hoppers is circulated to the top on three grades of absorption towers by the 3rd circulation line; The below on level Four absorption tower is provided with level Four hopper, and the absorbing liquid in level Four hopper is circulated to the top on level Four absorption tower by the 4th circulation line; Absorbing liquid in described one-level hopper is regularly transferred in tert-butyl alcohol hopper, supplemented by the absorbing liquid in secondary hopper with the absorbing liquid in rear stage hopper, absorbing liquid in secondary hopper is supplemented by the absorbing liquid in three grades of hoppers, absorbing liquid in three grades of hoppers is supplemented by the absorbing liquid in level Four hopper, and the absorbing liquid in level Four hopper adds from the external world.
Advantageous Effects of the present invention is:
The tert-butyl alcohol gas that the present invention produces in entrucking, shipment or storage tank respiratory for the tert-butyl alcohol product reclaiming chemical enterprise, emission is made to reach national up-to-date environmental protection standard, avoid product waste, environmental pollution and healthy hidden danger that tert-butyl alcohol gas causes can be reduced simultaneously, there is good economic benefit, simultaneously this technology have take up an area little, energy consumption is low, the simple feature of flow process.
Accompanying drawing explanation
Fig. 1 is the structural representation of the device realizing tert-butyl alcohol Gas recovering method of the present invention.
In figure: 1-first grade absorption tower, 2-two-level absorption tower, 3-tri-grades of absorption towers, 4-level Four absorption tower, 5-primary cycle pump, 6-secondary cycle pump, 7-tri-grades of circulating pumps, 8-level Four circulating pump, 9-one-level hopper, 10-secondary hopper, 11-tri-grades of hoppers, 12-level Four hopper, 13-tert-butyl alcohol hopper, 14-tert-butyl alcohol gas air-introduced machine.
Detailed description of the invention
The invention provides a kind of tert-butyl alcohol Gas recovering method, the method mainly comprises the following steps: will carry out counter current contacting containing tert-butyl alcohol gas and absorbing liquid in absorption tower, the inside on absorption tower is provided with packing layer.Bottom absorption tower, absorption tower is entered into containing tert-butyl alcohol gas, absorbing liquid enters into absorption tower from top, absorption tower, in the packing layer on absorption tower, counter current contacting is carried out containing tert-butyl alcohol gas and absorbing liquid, absorbing liquid absorbs containing the tert-butyl alcohol in tert-butyl alcohol gas, flows into the hopper be arranged in below absorption tower subsequently.Absorbing liquid in described hopper re-circulates to the top on absorption tower by pipeline.
Above-mentioned absorption tower can arrange multiple as required, described containing tert-butyl alcohol gas successively through multiple absorption tower, include on each absorption tower tert-butyl alcohol gas all with absorbing liquid counter current contacting.In the below on each absorption tower, equal correspondence arranges a hopper, connects to carry out absorbing liquid transfer between adjacent hopper by pipeline.As described in absorption tower arrange 4 altogether, be respectively first grade absorption tower, two-level absorption tower, three grades of absorption towers and level Four absorption tower, containing tert-butyl alcohol gas from first order absorption top of tower out after enter two-level absorption tower, three grades of absorption towers and level Four absorption tower successively, tail gas finally up to standard is directly entered in air by the top on fourth stage absorption tower.The below of first grade absorption tower is provided with one-level hopper, and the absorbing liquid in one-level hopper is circulated to the top of first grade absorption tower by the first circulation line; The below of two-level absorption tower is provided with secondary hopper, and the absorbing liquid in secondary hopper is circulated to the top of two-level absorption tower by the second circulation line; Be provided with three grades of hoppers in the below on three grades of absorption towers, the absorbing liquid in three grades of hoppers is circulated to the top on three grades of absorption towers by the 3rd circulation line; The below on level Four absorption tower is provided with level Four hopper, and the absorbing liquid in level Four hopper is circulated to the top on level Four absorption tower by the 4th circulation line; First circulation line, the second circulation line, the 3rd circulation line and the 4th circulation line are provided with circulating pump.Absorbing liquid in described one-level hopper is regularly transferred in tert-butyl alcohol hopper, supplemented by the absorbing liquid in secondary hopper with the absorbing liquid in rear stage hopper, absorbing liquid in secondary hopper is supplemented by the absorbing liquid in three grades of hoppers, absorbing liquid in three grades of hoppers is supplemented by the absorbing liquid in level Four hopper, and the absorbing liquid in level Four hopper adds from the external world.The absorbing liquid added from the external world can be low concentration t-butanol solution or water.
The tert-butyl alcohol gas that the tert-butyl alcohol product that above-mentioned tert-butyl alcohol Gas recovering method can be used in reclaiming chemical enterprise produces in entrucking, shipment or storage tank respiratory.
Above-mentioned tert-butyl alcohol Gas recovering method can adopt various structures mode to realize, and only provides one comparatively specific embodiment below, and to do more specific detail to the present invention, but it should not as limiting the scope of the invention.
As shown in Figure 1, this apparatus structure comprises first grade absorption tower 1, two-level absorption tower 2, three grades of absorption towers 3 and level Four absorption tower 4.The below of first grade absorption tower 1 is provided with one-level hopper 9, and one-level hopper 9 is communicated with containing tert-butyl alcohol gas inlet pipeline, is being provided with tert-butyl alcohol gas air-introduced machine 14 containing on tert-butyl alcohol gas inlet pipeline.Containing tert-butyl alcohol gas from first grade absorption tower 1 top out after enter two-level absorption tower 2, three grades of absorption towers 3 and level Four absorption tower 4 successively, tail gas finally up to standard is directly entered in air by the top on level Four absorption tower 4.Absorbing liquid in one-level hopper 9 is circulated to the top of first grade absorption tower by the first circulation line, and the first circulation line is provided with primary cycle pump 5.The below of two-level absorption tower 2 is provided with secondary hopper 10, and the absorbing liquid in secondary hopper 10 is circulated to the top of two-level absorption tower by the second circulation line, and the second circulation line is provided with secondary cycle pump 6.The absorbing liquid be provided with in the below on three grades of absorption towers 3 in three grades of hoppers, 11, three grades of hoppers 11 is circulated to the top on three grades of absorption towers by the 3rd circulation line, the 3rd circulation line is provided with three grades of circulating pumps 7.The below on level Four absorption tower 4 is provided with level Four hopper 12, and the absorbing liquid in level Four hopper 12 is circulated to the top on level Four absorption tower 4 by the 4th circulation line, and the 4th circulation line is provided with level Four circulating pump 8.
In addition, described one-level hopper 9 is communicated with tert-butyl alcohol hopper 13 by the first absorbing liquid transfer conduit, secondary hopper 10 is communicated with one-level hopper 9 by the second absorbing liquid transfer conduit, three grades of hoppers 11 are communicated with secondary hopper 10 by the 3rd absorbing liquid transfer conduit, and level Four hopper 12 is communicated with three grades of hoppers 11 by the 4th absorbing liquid transfer conduit.Absorbing liquid in one-level hopper 9 is regularly transferred in tert-butyl alcohol hopper 13, supplemented by the absorbing liquid in secondary hopper 10 with the absorbing liquid in rear stage hopper 9, absorbing liquid in secondary hopper 10 is supplemented by the absorbing liquid in three grades of hoppers 11, absorbing liquid in three grades of hoppers 11 is supplemented by the absorbing liquid in level Four hopper 12, and the absorbing liquid in level Four hopper 12 adds from the external world.
Pipeline involved by said apparatus and pipe fitting all adopt PPH or stainless steel, and all valves, instrument and equipment all adopt acid-resistant anti-corrosion material.
The course of work of said structure is roughly as follows:
Tert-butyl alcohol entrucking, shipment or tert-butyl alcohol storage tank are breathed generation finite concentration tert-butyl alcohol gas and are sent into tert-butyl alcohol gas concentration unit by a tert-butyl alcohol gas air-introduced machine 14.In gas, tert-butyl alcohol volume fraction is generally 5% or higher, first gas enter in first grade absorption tower 1, in the packing layer of first grade absorption tower, the absorbing liquid delivering into absorption tower containing tert-butyl alcohol gas and primary cycle pump 5 carries out counter current contacting, in first grade absorption tower, tert-butyl alcohol absorption efficiency can reach 75% ~ 85%.When the tert-butyl alcohol concentration in one-level hopper 9 reaches more than 8%, this part t-butanol solution is regularly delivered in tert-butyl alcohol hopper 13 by primary cycle pump 5, and regularly arranges outward transport.Absorbing liquid in one-level hopper 9 is regularly supplemented by secondary cycle pump 6.After this after first grade absorption tower ejects, enter two-level absorption tower 2, three grades of absorption towers 3 and level Four absorption tower 4 containing tert-butyl alcohol gas successively, tail gas finally up to standard absorbs tower top discharging directly into atmosphere by the fourth stage.Absorbing liquid in secondary hopper 10 is regularly supplemented by three grades of circulating pumps 7, and the absorbing liquid in three grades of hoppers 11 is regularly supplemented by level Four circulating pump 8, and the absorbing liquid in level Four hopper 12 regularly adds from the external world.
The present invention adopts level Four washing process, and Equipments Setting is simple and reliable, has the low feature of energy consumption easily in flow process simultaneously; Adopting regular replenishment to absorb the control mode of water can effective control system caloric value, at utmost optimizes heat-transfer effect; Reclaiming tert-butyl alcohol concentration can reach 20% even higher, has industrial direct application value; After multistage absorption, tail gas can direct qualified discharge; Level Four absorption tower can three-dimensional distribute, and floor space is little, and rated wind velocity is high.
The relevant technologies content do not addressed in aforesaid way is taked or uses for reference prior art to realize.
It should be noted that, under the instruction of this description, those skilled in the art can also make such or such easy variation pattern, such as equivalent way, or obvious mode of texturing.Above-mentioned variation pattern all should within protection scope of the present invention.
Claims (5)
1. a tert-butyl alcohol Gas recovering method, is characterized in that comprising the following steps: will carry out counter current contacting containing tert-butyl alcohol gas and absorbing liquid in absorption tower, the inside on absorption tower is provided with packing layer; Bottom absorption tower, absorption tower is entered into containing tert-butyl alcohol gas, absorbing liquid enters into absorption tower from top, absorption tower, in the packing layer on absorption tower, counter current contacting is carried out containing tert-butyl alcohol gas and absorbing liquid, absorbing liquid absorbs containing the tert-butyl alcohol in tert-butyl alcohol gas, flows into the hopper be arranged in below absorption tower subsequently.
2. a kind of tert-butyl alcohol Gas recovering method according to claim 1, is characterized in that: the absorbing liquid in described hopper is circulated to the top on absorption tower by pipeline.
3. a kind of tert-butyl alcohol Gas recovering method according to claim 1, is characterized in that: described absorption tower arranges multiple, described containing tert-butyl alcohol gas successively through multiple absorption tower, include on each absorption tower tert-butyl alcohol gas all with absorbing liquid counter current contacting.
4. a kind of tert-butyl alcohol Gas recovering method according to claim 3, is characterized in that: the below on each absorption tower described all arranges a hopper, is connected carry out absorbing liquid transfer between adjacent hopper by pipeline.
5. a kind of tert-butyl alcohol Gas recovering method according to claim 1, is characterized in that: described absorbing liquid is t-butanol solution or water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510770623.1A CN105413398A (en) | 2015-11-12 | 2015-11-12 | Tertiary-butanol-containing gas recycling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510770623.1A CN105413398A (en) | 2015-11-12 | 2015-11-12 | Tertiary-butanol-containing gas recycling method |
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| Publication Number | Publication Date |
|---|---|
| CN105413398A true CN105413398A (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510770623.1A Pending CN105413398A (en) | 2015-11-12 | 2015-11-12 | Tertiary-butanol-containing gas recycling method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125158A (en) * | 1994-03-18 | 1996-06-26 | 关西电力株式会社 | Method for the removal of hydrogen sulfide present in gases |
| US5639355A (en) * | 1995-03-13 | 1997-06-17 | Texaco Chemical Inc. | Method for enhancing the yield of tertiary butyl alcohol in a tertiary butyl alcohol recovery process |
| CN203264546U (en) * | 2013-05-21 | 2013-11-06 | 浙江康峰化工有限公司 | Cyclic absorption device for hydrogen chloride tail gas |
| CN203469750U (en) * | 2013-08-08 | 2014-03-12 | 淄博齐翔腾达化工股份有限公司 | Tertiary butanol tail gas recycling device |
| CN103752139A (en) * | 2013-12-26 | 2014-04-30 | 安徽金禾实业股份有限公司 | Formic acid acidification working section tail gas absorption device and absorption method |
| CN203990257U (en) * | 2014-08-06 | 2014-12-10 | 山东凯盛新材料有限公司 | Between/paraphthaloyl chloride produce in emission-control equipment |
| CN205235704U (en) * | 2015-11-12 | 2016-05-18 | 中国石油化工股份有限公司 | Tert -butyl alcohol gas recovery device |
-
2015
- 2015-11-12 CN CN201510770623.1A patent/CN105413398A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125158A (en) * | 1994-03-18 | 1996-06-26 | 关西电力株式会社 | Method for the removal of hydrogen sulfide present in gases |
| US5639355A (en) * | 1995-03-13 | 1997-06-17 | Texaco Chemical Inc. | Method for enhancing the yield of tertiary butyl alcohol in a tertiary butyl alcohol recovery process |
| CN203264546U (en) * | 2013-05-21 | 2013-11-06 | 浙江康峰化工有限公司 | Cyclic absorption device for hydrogen chloride tail gas |
| CN203469750U (en) * | 2013-08-08 | 2014-03-12 | 淄博齐翔腾达化工股份有限公司 | Tertiary butanol tail gas recycling device |
| CN103752139A (en) * | 2013-12-26 | 2014-04-30 | 安徽金禾实业股份有限公司 | Formic acid acidification working section tail gas absorption device and absorption method |
| CN203990257U (en) * | 2014-08-06 | 2014-12-10 | 山东凯盛新材料有限公司 | Between/paraphthaloyl chloride produce in emission-control equipment |
| CN205235704U (en) * | 2015-11-12 | 2016-05-18 | 中国石油化工股份有限公司 | Tert -butyl alcohol gas recovery device |
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Application publication date: 20160323 |
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