CN104667577A - Coal tar distillation vacuum overhead oil dewatering device based on three-stage dewatering - Google Patents
Coal tar distillation vacuum overhead oil dewatering device based on three-stage dewatering Download PDFInfo
- Publication number
- CN104667577A CN104667577A CN201310619261.7A CN201310619261A CN104667577A CN 104667577 A CN104667577 A CN 104667577A CN 201310619261 A CN201310619261 A CN 201310619261A CN 104667577 A CN104667577 A CN 104667577A
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- China
- Prior art keywords
- oil
- tank
- coal tar
- tar distillation
- oily
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1074—Vacuum distillates
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a coal tar distillation vacuum overhead oil dewatering device based on three-stage dewatering, belongs to the technical field of high-temperature coal tar hydrogenation, and particularly relates to a coal tar distillation vacuum overhead oil dewatering device. Vacuum overhead oil of a pressure reduction tower passes through an air cooler and a water cooler in sequence and enters a backflow tank at the top of the pressure reduction tower; the backflow tank at the top of the pressure reduction tower comprises a first oil outlet; oil from the first oil outlet is conveyed to the top end of the pressure reduction tower and a vertical type tank through a vacuum overhead oil backflow pump; the vertical type tank comprises a second oil outlet formed in the side wall of the vertical type tank; the second oil outlet is connected with the top end of a horizontal type tank; the horizontal type tank comprises a third oil outlet formed in the side wall of the horizontal type tank; oil from the third oil outlet is conveyed to a reaction raw material tank through a vacuum overhead oil conveying pump. According to the coal tar distillation and vacuum overhead oil dewatering device disclosed by the invention, the vacuum overhead oil produced by coal tar distillation can be subjected to oil-water separation, and purified oil can be fully used, so that water in the oil can be prevented from being brought into a reaction system and further affecting the service life of a catalyst; premise guarantee is provided for steady operation of a subsequent reaction system.
Description
Technical field
Coal tar distillation based on three grades of dehydrations subtracts the oily dewater unit in top and belongs to hydrogenation of high temperature coal tar technical field, is specifically related to a kind of coal tar distillation and subtracts the oily dewater unit in top.
Background technology
Hydrogenation of high temperature coal tar project is since operation, because of before system without dewater unit, only carry out profit layering by material tank quiescent setting, it is generally moisture at <1.5% that tar enters system, through decompression distillation, water major part becomes water vapour and rises up into tower top, push up oil and mix with subtracting, be stored in and subtract in the oil of top, cause subtracting that top oil is moisture reaches 1%-2%, because reaction system is raw materials used require anhydrous, making to subtract top oil cannot as the raw material of reaction system, this problem limits the use subtracting top oil always, can fully utilize to make to subtract top oil, must dewater in advance and reach instructions for use.Then regrettably, the equipment having and realize this function is not also found.
Summary of the invention
In order to solve the problem, the present invention devises a kind of coal tar distillation based on three grades of dehydrations and subtracts the oily dewater unit in top, this dewater unit can carry out water-oil separating the top oil that subtracts that coal tar distillation produces, and the oil after purifying is made full use of, avoid water content in oil and bring reaction system into, have influence on the service life of catalyst, for the even running of subsequent reactions system provides premise.
The object of the present invention is achieved like this:
Coal tar distillation based on three grades of dehydrations subtracts the oily dewater unit in top, subtracting of vacuum tower pushes up oil successively after air cooler and water cooler, enter Top of Vacuum Tower return tank, described Top of Vacuum Tower return tank is first order dehydration equipment, comprise and be arranged on the first delivery port bottom Top of Vacuum Tower return tank and position the first oil-out higher than the first delivery port, the oil of the first oil-out flows to vacuum tower top and vertical tank by subtracting the oily reflux pump in top, described vertical tank is second level dehydration equipment, comprise the second delivery port be arranged on bottom vertical tank and the second oil-out being arranged on vertical tank sidewall, second oil-out connects the top of horizontal tank, described horizontal tank is third level dehydration equipment, comprise the 3rd delivery port be arranged on bottom horizontal tank and the 3rd oil-out being arranged on horizontal tank sidewall, the oil of the 3rd oil-out flows to reaction raw materials tank by subtracting the oily delivery pump in top.
The above-mentioned coal tar distillation based on three grades of dehydrations subtracts the oily dewater unit in top, and the second described oil-out is positioned at the first half of vertical tank.
The above-mentioned coal tar distillation based on three grades of dehydrations subtracts the oily dewater unit in top, and the second described oil-out is higher than the top of horizontal tank.
Because coal tar distillation of the present invention subtracts the oily dewater unit in top, subtracting of vacuum tower pushes up oil successively after air cooler and water cooler, enter Top of Vacuum Tower return tank, Top of Vacuum Tower return tank comprises the first oil-out, the oil of the first oil-out flows to vacuum tower top and vertical tank by subtracting the oily reflux pump in top, vertical tank comprises the second oil-out being arranged on vertical tank sidewall, second oil-out connects the top of horizontal tank, horizontal tank comprises the 3rd oil-out being arranged on horizontal tank sidewall, and the oil of the 3rd oil-out flows to reaction raw materials tank by subtracting the oily delivery pump in top; This design, the top oil that subtracts that coal tar distillation produces can be carried out water-oil separating, and the oil after purifying is made full use of, avoid water content in oil and bring reaction system into, have influence on the service life of catalyst, for the even running of subsequent reactions system provides premise.
Accompanying drawing explanation
Fig. 1 is that the coal tar distillation that the present invention is based on three grades of dehydrations subtracts the structural representation pushing up oily dewater unit.
In figure: 1 vacuum tower, 2 air coolers, 3 water coolers, 4 Top of Vacuum Tower return tanks, 5 reaction raw materials tanks, 6 horizontal tanks, 7 subtract the oily delivery pump in top, 8 vertical tanks, 9 subtract the oily reflux pump in top.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
The coal tar distillation based on three grades of dehydrations of the present embodiment subtracts the oily dewater unit in top, and structural representation as shown in Figure 1.This coal tar distillation subtracts subtracting of vacuum tower 1 in the oily dewater unit in top and pushes up oil successively after air cooler 2 and water cooler 3, enter Top of Vacuum Tower return tank 4, described Top of Vacuum Tower return tank 4 is first order dehydration equipment, comprise and be arranged on the first delivery port bottom Top of Vacuum Tower return tank 4 and position the first oil-out higher than the first delivery port, the oil of the first oil-out flows to vacuum tower 1 top and vertical tank 8 by subtracting the oily reflux pump 9 in top, described vertical tank 8 is second level dehydration equipment, comprise the second delivery port be arranged on bottom vertical tank 8 and the second oil-out being arranged on vertical tank 8 sidewall, second oil-out connects the top of horizontal tank 6, described horizontal tank 6 is third level dehydration equipment, comprise the 3rd delivery port be arranged on bottom horizontal tank 6 and the 3rd oil-out being arranged on horizontal tank 6 sidewall, the oil of the 3rd oil-out flows to reaction raw materials tank 5 by subtracting the oily delivery pump 7 in top.
The second described oil-out is positioned at the first half of vertical tank 8.
The second described oil-out is higher than the top of horizontal tank 6.
The oil of the first oil-out flows to vacuum tower 1 top by subtracting the oily reflux pump 9 in top, and object is to the cooling of vacuum tower 1 top, makes it meet operational temperature conditions.
Adopt air cooler 2 and the cooling of water cooler 3 secondary, cooling effect can reach best, if only adopt air cooler 2, cooling effect is not as water cooler 3, if only adopt water cooler 3, too high owing to subtracting top oil temperature, easily cause the coolant boiling in water cooler 3 to evaporate, damage water cooler 3.
Adopt three grades of dewatering systems, all dewater at every grade of dewatering system, make the water content of oil in more advanced dewatering system lower, this mode is conducive to improving dehydrating effect, than the better effects if of single-stage dewatering system dehydration.
Second level dehydration equipment adopts vertical tank 8, and object is the height of raising second oil-out, and oil-out is higher, is more conducive to the purity keeping oil; Third level dehydration equipment adopts horizontal tank 6, and object is in order to the second oil-out lower than vertical tank 8, makes oil can automatic stream third level dehydration equipment, saves energy.If all adopt vertical structure, or second level dehydration equipment is very high makes oily automatic stream third level dehydration equipment, or adopts pump that the oil pump of second level dehydration equipment is entered third level dehydration equipment, and comparing design of the present invention all will increase cost.
The present invention carries out water-oil separating the top oil that subtracts that coal tar distillation produces, and makes full use of the oil after purifying, and avoids water content in oil and brings reaction system into, have influence on the service life of catalyst, for the even running of subsequent reactions system provides premise.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structure change or method improvement made under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, all falls within protection scope of the present invention.
Claims (3)
1. the coal tar distillation based on three grades of dehydrations subtracts the oily dewater unit in top, it is characterized in that, subtracting of vacuum tower (1) pushes up oil successively after air cooler (2) and water cooler (3), enter Top of Vacuum Tower return tank (4), described Top of Vacuum Tower return tank (4) is first order dehydration equipment, comprise be arranged on Top of Vacuum Tower return tank (4) bottom the first delivery port and position higher than the first oil-out of the first delivery port, the oil of the first oil-out flows to vacuum tower (1) top and vertical tank (8) by subtracting the oily reflux pump in top (9), described vertical tank (8) is second level dehydration equipment, comprise the second delivery port being arranged on vertical tank (8) bottom and the second oil-out being arranged on vertical tank (8) sidewall, second oil-out connects the top of horizontal tank (6), described horizontal tank (6) is third level dehydration equipment, comprise the 3rd delivery port being arranged on horizontal tank (6) bottom and the 3rd oil-out being arranged on horizontal tank (6) sidewall, the oil of the 3rd oil-out flows to reaction raw materials tank (5) by subtracting the oily delivery pump in top (7).
2. the coal tar distillation based on three grades of dehydrations according to claim 1 subtracts the oily dewater unit in top, and it is characterized in that, the second described oil-out is positioned at the first half of vertical tank (8).
3. the coal tar distillation based on three grades of dehydrations according to claim 1 and 2 subtracts the oily dewater unit in top, and it is characterized in that, the second described oil-out is higher than the top of horizontal tank (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310619261.7A CN104667577A (en) | 2013-11-29 | 2013-11-29 | Coal tar distillation vacuum overhead oil dewatering device based on three-stage dewatering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310619261.7A CN104667577A (en) | 2013-11-29 | 2013-11-29 | Coal tar distillation vacuum overhead oil dewatering device based on three-stage dewatering |
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| Publication Number | Publication Date |
|---|---|
| CN104667577A true CN104667577A (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310619261.7A Pending CN104667577A (en) | 2013-11-29 | 2013-11-29 | Coal tar distillation vacuum overhead oil dewatering device based on three-stage dewatering |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693430A (en) * | 2016-12-30 | 2017-05-24 | 山东胜星化工有限公司 | Online water washing fractioning tower top cycle system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201454161U (en) * | 2009-06-30 | 2010-05-12 | 优顿(天津)精细化工有限公司 | Oil-water separation system |
| CN201969384U (en) * | 2011-01-07 | 2011-09-14 | 焦云 | Three-stage oil-water separation device for producing clean oil product by high-temperature coal tar hydrogenation process |
| CN102952559A (en) * | 2012-11-21 | 2013-03-06 | 中国寰球工程公司辽宁分公司 | Novel method for increasing efficiency and decreasing emission of dry distillation device |
| GB2501261A (en) * | 2012-04-17 | 2013-10-23 | Statoil Canada Ltd | A method of cleaning water to remove hydrocarbon |
| CN203577374U (en) * | 2013-11-29 | 2014-05-07 | 七台河宝泰隆圣迈煤化工有限责任公司 | Coal tar distilled vacuum overhead oil dehydration device based on three-stage dehydration |
-
2013
- 2013-11-29 CN CN201310619261.7A patent/CN104667577A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201454161U (en) * | 2009-06-30 | 2010-05-12 | 优顿(天津)精细化工有限公司 | Oil-water separation system |
| CN201969384U (en) * | 2011-01-07 | 2011-09-14 | 焦云 | Three-stage oil-water separation device for producing clean oil product by high-temperature coal tar hydrogenation process |
| GB2501261A (en) * | 2012-04-17 | 2013-10-23 | Statoil Canada Ltd | A method of cleaning water to remove hydrocarbon |
| CN102952559A (en) * | 2012-11-21 | 2013-03-06 | 中国寰球工程公司辽宁分公司 | Novel method for increasing efficiency and decreasing emission of dry distillation device |
| CN203577374U (en) * | 2013-11-29 | 2014-05-07 | 七台河宝泰隆圣迈煤化工有限责任公司 | Coal tar distilled vacuum overhead oil dehydration device based on three-stage dehydration |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693430A (en) * | 2016-12-30 | 2017-05-24 | 山东胜星化工有限公司 | Online water washing fractioning tower top cycle system |
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Application publication date: 20150603 |