CN103691142A - Negative-pressure oil-washing regeneration tower - Google Patents
Negative-pressure oil-washing regeneration tower Download PDFInfo
- Publication number
- CN103691142A CN103691142A CN201210367225.1A CN201210367225A CN103691142A CN 103691142 A CN103691142 A CN 103691142A CN 201210367225 A CN201210367225 A CN 201210367225A CN 103691142 A CN103691142 A CN 103691142A
- Authority
- CN
- China
- Prior art keywords
- tower body
- tower
- column plate
- column
- washing oil
- 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.)
- Granted
Links
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to the field of carbocyclic compound distillation, and particularly relates to a negative-pressure oil-washing regeneration tower. The negative-pressure oil-washing regeneration tower comprises a base (1) and a tower body (2), and the tower body (2) is arranged on the base (1). The negative-pressure oil-washing regeneration tower is characterized by also comprising a lower sealing head (31), an upper sealing head (32), a blow-down pipe (41), tower plates (42), a scour prevention plate (43) and a lifting lug (6); the bottom of the tower body (2) is sealed by the lower sealing head (31), and the lower sealing head (31) and the blow-down pipe (41) are connected; the upper half part of the interior of the tower body (2) is provided with the tower plates (42) from top to bottom, and the scour prevention plate (43) is arranged under the lowest-grade tower plate (42); the top of the tower body (2) is sealed by the upper sealing head (32). The negative-pressure oil-washing regeneration tower has strong adaptability, convenient operation, stable output, corrosion resistance and low investment.
Description
Technical field
The present invention relates to the distillation field of carbocyclic compound, be specially a kind of negative pressure washing oil regenerating column.
Background technology
Coke-oven plant's coal gas washs the crude benzol in coal gas is washed through washing oil, then by destilling tower, the crude benzol in washing oil is carried and distillated, and crude benzol is a kind of important industrial chemicals, can be applicable to manufacture medicine, agricultural chemicals, dyestuff, spices etc. after deep processing.Washing oil recycles in process because carrying the impurity such as tar, ammonia, hydrogen sulfide secretly, can make the mean molecule quantity of washing oil increase, and reduces the ability that washing oil absorbs benzene, therefore need to be to the circulating washing oil discharge heavy constituent of regenerate.At present crude benzol distil process mainly adopts water vapour Direct Regeneration, but in regenerative process because heavy constituent ratio of viscosities is larger, regenerator scum pipe arranges higher, during production, deslagging is very difficult, needs toward logical steam in regenerator slag from the extrusion of regenerator bottom.This mode of production has increased steam consumption and has also increased the outer discharge capacity of waste water simultaneously, to direct labor, has increased labour intensity.Because the temperature control of regeneration is bad, can increase oil washing consumption amount, normal pressure technique crude benzol oil washing consumption amount, at 100kg～120kg per ton, has increased operating cost.
Summary of the invention
In order to overcome the defect of prior art, a kind of strong adaptability is provided, easy to operate, output stable, corrosion-resistant, invest low distillation equipment, the invention discloses a kind of negative pressure washing oil regenerating column.
The present invention reaches goal of the invention by following technical solution:
A negative pressure washing oil regenerating column, comprises base and tower body, and tower body is located on base, it is characterized in that: also comprise low head, upper cover, blow-down pipe, column plate, erosion control brush board and hanger, the bottom of tower body is sealed with low head, and low head is connected with blow-down pipe; The first half in tower body is provided with column plate from top to bottom, column plate is horizontally disposed with, parallel to each other between each piece column plate, and one end of column plate is fixed on the inwall of tower body, adjacent tray is separately fixed at the both sides that tower body inwall is relative, and the below of next stage column plate is provided with erosion control brush board; On the tower wall of tower body, have successively from top to bottom upper feeding mouth, thermometer boss, lower charging aperture and discharging opening, top and the middle part of tower body tower wall have manhole; Erosion control brush board is between lower charging aperture and discharging opening; The top of tower body is sealed with upper cover, and the top of upper cover has diffusion mouth, gaseous phase outlet and thermometer boss; The junction of upper cover and tower body is provided with hanger.
Described negative pressure washing oil regenerating column, is characterized in that: no more than 15 of the quantity of column plate, is also provided with anti-liquid baffle plate on column plate.
Described negative pressure washing oil regenerating column, is characterized in that: the cylinder that tower body is hollow, and the height of tower body is 5～8 times of tower body internal diameter; Tower body adopts stainless steel to make, and base adopts carbon steel to make.
The present invention utilizes vacuum equipment to produce negative pressure at top of tower, reduce the boiling point of tower internal gas pressure and washing oil, equipment opening is rationally set simultaneously, solve the deficiency of existing normal pressure washing oil regenerating column, and control and selection material by rational parameter, provide a kind of strong adaptability, stable operation, elasticity large, corrosion-resistant, invest low regenerator, have efficient, anti-stifled, corrosion-resistant, invest low, reduce the advantages such as ton crude benzol oil washing consumption amount.
When the present invention uses, containing benzene 0.2%～2% temperature, at the poor washing oil of 200 ℃～260 ℃, entering regenerator, be negative-pressure operation environment in regenerator, and tower top is controlled at 180 ℃～250 ℃ with generation washing oil light component, is controlled at 210 ℃～260 ℃ at the bottom of tower; The poor washing oil of circulation that regeneration thermal source is diamond heating, after diamond heating, temperature is 210 ℃～260 ℃, by regenerator bottom, is entered in tower.
The invention has the beneficial effects as follows: strong adaptability, easy to operate, output is stable, corrosion-resistant, invests low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
By specific embodiment, further illustrate the present invention below.
Embodiment 1
A kind of negative pressure washing oil regenerating column, comprise base 1, tower body 2, low head 31, upper cover 32, blow-down pipe 41, column plate 42, erosion control brush board 43 and hanger 6, as shown in Figure 1, concrete structure is: tower body 2 is located on base 1, low head 31 sealings for the bottom of tower body 2, low head 31 is connected with blow-down pipe 41; The first half in tower body 2 is provided with the column plate 42 of no more than 15 from top to bottom, column plate 42 is horizontally disposed with, parallel to each other between each piece column plate 42, one end of column plate 42 is fixed on the inwall of tower body 2, adjacent tray 42 is separately fixed at the relative both sides of tower body 2 inwalls, and the below of next stage column plate 42 is provided with erosion control brush board 43; On the tower wall of tower body 2, have successively from top to bottom upper feeding mouth 51, thermometer boss 54, lower charging aperture 52 and discharging opening 53, top and the middle part of tower body 2 tower walls have manhole 55; Erosion control brush board 43 is between lower charging aperture 52 and discharging opening 53; Upper cover 32 sealings for the top of tower body 2, the top of upper cover 32 has diffusion mouth 56, gaseous phase outlet 57 and thermometer boss 54; The junction of upper cover 32 and tower body 2 is provided with hanger 6.
In the present embodiment, the quantity of column plate 42 is 5, only draws 4 in Fig. 1, is also provided with anti-liquid baffle plate on column plate 42.
In the present embodiment, the cylinder that tower body 2 is hollow, the height of tower body 2 is 5～8 times of tower body 22 internal diameters, the present embodiment is got 7 times; Tower body 2 adopts that the trades mark are 304,304L, 316 or the stainless steel of 316L make, base 1 adopts carbon steel to make.
When the present embodiment is used, containing benzene 0.2%～2% temperature, at the poor washing oil of 200 ℃～260 ℃, entering regenerator, be negative-pressure operation environment in regenerator, and tower top is controlled at 180 ℃～250 ℃ with generation washing oil light component, is controlled at 210 ℃～260 ℃ at the bottom of tower; The poor washing oil of circulation that regeneration thermal source is diamond heating, after diamond heating, temperature is 210 ℃～260 ℃, by regenerator bottom, is entered in tower.
Control parameter: determine that rational control parameter reaches energy resource consumption and economizes most, save oil washing consumption amount simultaneously, by normal pressure crude benzol per ton, consume washing oil 100kg～120kg and be down to 80kg left and right.
Points for attention when the present embodiment is used are as follows:
A. material is selected: according to the corrosion of corrosive medium that regeneration technology produces and degree, select corresponding suitable material, negative pressure regenerator material selection 304,304L, 316 or 316L; Skirt supports and adopts carbon steel.
B. tower tray pattern: crude benzol destilling tower selects Effective Anti to block up inclined hole tower tray, arranges anti-liquid baffle plate on tower tray, increases gas-liquid contact area and reduces gas entrained liquids amount, improves plate efficiency, and this type plate efficiency is high, and operating flexibility can be 50%～110%.The material of the material of tower tray and support member and cylindrical shell relevant position is consistent.
C. regenerator scum pipe position: the scum pipe arranging in air-distillation technique regenerator is too high because arranging, needs live (open) steam pressurization could discharge slag, and the while also produces a large amount of waste water, has increased workman's labour intensity.The bottom that negative pressure regenerator arranges scum pipe, deslagging is easy, alleviates workman's labour intensity, nor purges with live (open) steam, can reduce waste water and arrange outward.
D. regenerator circulating washing oil charging aperture: this charging aperture operates charging meeting vaporization under negative pressure because temperature is high, solid insoluble and corrosive medium are under high velocity effect, there is very strong erosion corrosion, for this reason, two or three erosion control brush boards are set at charging aperture place, and to destilling tower, erosion corrosion has good preventive effect.Can increase with the contact area of the interior liquid phase of tower and carry out abundant heat exchange, guarantee the utilization ratio of heat energy simultaneously.
Claims (3)
1. a negative pressure washing oil regenerating column, comprise base (1) and tower body (2), tower body (2) is located on base (1), it is characterized in that: also comprise low head (31), upper cover (32), blow-down pipe (41), column plate (42), erosion control brush board (43) and hanger (6)
Low head for bottom (31) sealing of tower body (2), low head (31) is connected with blow-down pipe (41);
The first half in tower body (2) is provided with column plate (42) from top to bottom, column plate (42) is horizontally disposed with, parallel to each other between each piece column plate (42), one end of column plate (42) is fixed on the inwall of tower body (2), adjacent tray (42) is separately fixed at the relative both sides of tower body (2) inwall, and the below of next stage column plate (42) is provided with erosion control brush board (43);
On the tower wall of tower body (2), have successively from top to bottom upper feeding mouth (51), thermometer boss (54), lower charging aperture (52) and discharging opening (53), top and the middle part of tower body (2) tower wall have manhole (55); Erosion control brush board (43) is positioned between lower charging aperture (52) and discharging opening (53);
Upper cover for top (32) sealing of tower body (2), the top of upper cover (32) has diffusion mouth (56), gaseous phase outlet (57) and thermometer boss (54); The junction of upper cover (32) and tower body (2) is provided with hanger (6).
2. negative pressure washing oil regenerating column as claimed in claim 1, is characterized in that: no more than 15 of the quantity of column plate (42), is also provided with anti-liquid baffle plate on column plate (42).
3. negative pressure washing oil regenerating column as claimed in claim 1 or 2, is characterized in that: tower body (2) is the cylinder of hollow, and the height of tower body (2) is 5～8 times of tower body (22) internal diameter; Tower body (2) adopts stainless steel to make, and base (1) adopts carbon steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210367225.1A CN103691142B (en) | 2012-09-28 | 2012-09-28 | Negative pressure regenerating wash oil tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210367225.1A CN103691142B (en) | 2012-09-28 | 2012-09-28 | Negative pressure regenerating wash oil tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103691142A true CN103691142A (en) | 2014-04-02 |
| CN103691142B CN103691142B (en) | 2016-06-01 |
Family
ID=50352905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210367225.1A Active CN103691142B (en) | 2012-09-28 | 2012-09-28 | Negative pressure regenerating wash oil tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103691142B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104312638A (en) * | 2014-10-30 | 2015-01-28 | 济南冶金化工设备有限公司 | Thermal coupling negative pressure debenzolizing and regenerating integrated device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB775978A (en) * | 1953-06-01 | 1957-05-29 | Woodall Duckham Constr Co Ltd | Regeneration, by distillation, of oils used for gas washing |
| JPS50126623A (en) * | 1974-03-19 | 1975-10-04 | ||
| CN1030070A (en) * | 1988-04-04 | 1989-01-04 | 冶金工业部鞍山焦化耐火材料设计研究院 | Single tower debenzolizing process and novel debenzolizing tower |
| CN101289633A (en) * | 2007-04-20 | 2008-10-22 | 宝山钢铁股份有限公司 | Novel regeneration process for circulation oil of crude benzol device |
| CN101544913A (en) * | 2009-05-04 | 2009-09-30 | 济南冶金化工设备有限公司 | Process and equipment for negative pressure benzene removal |
-
2012
- 2012-09-28 CN CN201210367225.1A patent/CN103691142B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB775978A (en) * | 1953-06-01 | 1957-05-29 | Woodall Duckham Constr Co Ltd | Regeneration, by distillation, of oils used for gas washing |
| JPS50126623A (en) * | 1974-03-19 | 1975-10-04 | ||
| CN1030070A (en) * | 1988-04-04 | 1989-01-04 | 冶金工业部鞍山焦化耐火材料设计研究院 | Single tower debenzolizing process and novel debenzolizing tower |
| CN101289633A (en) * | 2007-04-20 | 2008-10-22 | 宝山钢铁股份有限公司 | Novel regeneration process for circulation oil of crude benzol device |
| CN101544913A (en) * | 2009-05-04 | 2009-09-30 | 济南冶金化工设备有限公司 | Process and equipment for negative pressure benzene removal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104312638A (en) * | 2014-10-30 | 2015-01-28 | 济南冶金化工设备有限公司 | Thermal coupling negative pressure debenzolizing and regenerating integrated device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103691142B (en) | 2016-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201710990U (en) | Variable aperture dual-flow sieve-plate tower | |
| CN105176589A (en) | Coke fixed bed pressurization gasification device and process | |
| CN103189124A (en) | System and method for recovering gas containing c02 and h2s | |
| CN203494190U (en) | Device for utilizing coal gasification waste water and waste heat, removing dust and saving water | |
| CN103691142B (en) | Negative pressure regenerating wash oil tower | |
| CN201737724U (en) | Circulating treatment device for carbonized tower boiled liquid | |
| CN202339132U (en) | High-temperature-resistant tube-arrayed type graphite heat exchanger | |
| CN206094975U (en) | Utilize device of aluminium cell cogeneration | |
| CN106123632B (en) | A kind of method to be generated electricity using residual heat of aluminum reduction cell | |
| CN202719583U (en) | Reaction heat recovery device of coal-derived natural gas | |
| CN104830350A (en) | Biomass organic carbon preparation device | |
| CN213160833U (en) | Pipe cap type grid plate structure | |
| CN204918512U (en) | Water gas cooling scrubbing tower | |
| CN104178234A (en) | Method and system for preparing natural gas from coke oven gas and generator gas and utilizing waste heat | |
| CN202909473U (en) | Negative pressure distillation tower for extracting crude benzene | |
| CN204730164U (en) | Low-pressure steam generator | |
| CN209555167U (en) | A kind of system of tar purifying processing | |
| CN208944069U (en) | A kind of Novel suspending bed hydroprocessing reactor | |
| CN100368060C (en) | Turbulent_washing gas treating apparatus | |
| CN201534001U (en) | Washing oil regenerating column | |
| CN211864944U (en) | Cyanopyridine raw material vaporizer | |
| CN2659531Y (en) | Gas washing tower | |
| CN204625550U (en) | A kind of heat exchange of biomass Organic carbon preparation facilities and catalyzer deflector | |
| CN219243550U (en) | Evaporation equipment for smelting plant | |
| CN205133593U (en) | Biological hydrogen preparation equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |