CN103694966B - Process units and the technique thereof of engine coolant is prepared with coal-ethylene glycol waste material - Google Patents
Process units and the technique thereof of engine coolant is prepared with coal-ethylene glycol waste material Download PDFInfo
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Abstract
The present invention relates to the technical field of engine coolant process units, be specially the process units preparing engine coolant with coal-ethylene glycol waste material.Including lightness-removing column, one-level rectifying column, two-stage rectification tower and stirred tank, it is characteristic of the invention that and can enable all or part of device according to the difference of coal-ethylene glycol waste material composition, flexible design, easy to operate.
Description
Technical field
The present invention relates to the technical field of engine coolant process units and technique thereof, be specially and give up with coal-ethylene glycol
Process units and the technique thereof of engine coolant prepared by material.
Background technology
In recent years, along with the maturation of coal-ethylene glycol technology, domestic build large quantities of coal-ethylene glycol enterprise.According to system
Meter, the coming years, the production capacity of China's coal-ethylene glycol was up to more than 5,000,000 tons.In coal-ethylene glycol production process, it will
Produce the ethylene glycol waste material of about 10%, and these so-called waste materials often sell Some Enterprises with relatively low price, as fuel
Use, cause the great wasting of resources.But, in these waste materials containing substantial amounts of ethylene glycol, 1,2-butanediol etc. is polynary
Alcohol, and polyalcohols is the raw material of excellent engine coolant.Current engine coolant is mainly ethylene glycol type, second two
Alcohol is with oil as raw material, relatively costly.If these coal-ethylene glycol waste material Appropriate application can be made engine cool
Liquid, will have the strongest market competitiveness, can increase the profit of coal-ethylene glycol manufacturing enterprise, and the production reducing enterprise becomes
This.
Summary of the invention
In order to enable reasonably to be utilized by coal-ethylene glycol waste material, reducing the wasting of resources, the present invention provides one coal second
Glycol waste material prepares process units and the technique of engine coolant.
A kind of coal-ethylene glycol waste material prepares the process units of engine coolant, including lightness-removing column, and one-level rectifying column,
Two-stage rectification tower and stirred tank, the side of lightness-removing column has waste material input channel, lightness-removing column bottom to be provided with lightness-removing column reboiler, de-
Light column overhead has lightness-removing column tower top pipeline, has lightness-removing column tower bottom pipeline and one-level rectifying column to connect, one-level rectification at the bottom of lightness-removing column tower
Tower bottom is provided with one-level rectifying column reboiler, is provided with discharging pipeline, one-level at the bottom of one-level rectifying tower at the bottom of one-level rectifying tower
At the bottom of rectifying tower, discharging pipeline is connected with fluid reservoir through the first pipeline, discharging pipeline at the bottom of one-level rectifying tower also with discharge line phase
Even, one-level rectifying column tower top be provided with one-level rectifying tower push pipe road successively with one-level rectifying column overhead condenser, one-level rectification
Column overhead return tank is connected, and the outlet of one-level rectifying column top return tank connects top and the one-level rectifying column of one-level rectifying column respectively
Tower top discharge pipe, one-level rectifying column connects through one-level rectifying column side line condenser and one-level rectifying column side line holding vessel, one-level essence
Evaporating tower side line holding vessel to be connected with two-stage rectification tower, the outlet of two-stage rectification column overhead condenses with two-stage rectification tower successively through pipeline
Device, two-stage rectification tower return tank are connected, and two-stage rectification tower return tank bottom is discharged with two-stage rectification tower top and return tank respectively
Pipe is connected, and the two-stage rectification tower tower bottom pipeline arranged at the bottom of two-stage rectification tower tower is connected with condenser at the bottom of two-stage rectification tower tower, two grades
The outlet of condenser at the bottom of rectifying tower connects the first pipeline, and two-stage rectification tower bottom is provided with two-stage rectification tower reboiler, fluid reservoir
Being connected with stirred tank by discharge pipe, stirred tank side also has a charging aperture, and bottom is provided with discharging opening.
Arranging heater in described stirred tank, mode of heating is chuck heating, steam-coil-heater, steam direct heating
One or more.
Discharging pipeline at the bottom of described one-level rectifying tower arranges two and is in charge of line, is in charge of on line respectively and arranges first for two
Valve and the second valve, the first valve is arranged on the first pipeline of fluid reservoir, and the second valve is arranged on towards system circle
On discharge line outside district.
The technique preparing engine coolant with coal-ethylene glycol waste material, coal-ethylene glycol waste material passes through waste material input channel
Enter lightness-removing column, by this tower, the light component methanol in raw material, dimethyl carbonate, second alcohol and water are steamed out from tower top, from de-
Light column overhead pipeline flows out, and the boiling point component more than 100 DEG C flows to one-level rectifying column, through one-level by lightness-removing column tower bottom pipeline
Rectifying column, the boiling point component less than 165 DEG C flows out through one-level rectifying tower push pipe road from tower top, the boiling point group more than 165 DEG C
Divide and flow out from the bottom of tower, flow out from discharging pipeline at the bottom of one-level rectifying tower, when feed coal preparing ethylene glycol waste material mid-boiling point is more than 260 DEG C
Constituent mass mark more than 1% time, pass sequentially through one-level rectifying column condenser and one-level rectifying column holding vessel, subsequently into two
Level rectifying column, the boiling point component less than 165 DEG C flows out from tower top, passes sequentially through two-stage rectification tower condenser and two-stage rectification tower returns
Stream tank, the component more than 165 DEG C of the boiling point at the bottom of tower flows to fluid reservoir by two-stage rectification tower tower bottom pipeline, enters to from fluid reservoir
Stirred tank, then in stirred tank, inject deionized water 20 parts, polyacrylate 0.01 part, sodium nitrite 1 part, phosphorus by weight
Acid disodium hydrogen 2 parts, methacrylate 0.1 part and methyl blue 0.001 part, stirring, to being completely dissolved, i.e. obtains engine cool
Liquid.
Described at discharging pipeline at the bottom of one-level rectifying tower, when the discharging fraction at the bottom of one-level rectifying tower is more than containing boiling point
During the fraction of 260 DEG C, close the first valve led on fluid reservoir pipeline, open towards the second valve on system battery limit (BL) external pipeline
Door, when not containing the boiling point fraction more than 260 DEG C in the fraction at the bottom of one-level rectifying tower, opens on fluid reservoir pipeline
First valve, closes the second valve led on system battery limit (BL) external pipeline.
It is characteristic of the invention that and can enable all or part of device according to the difference of coal-ethylene glycol waste material composition, if
Meter is flexibly, easy to operate.
According to NB/SH/T 0,521 2010 " ethylene glycol type and propylene glycol engine coolant ", technical specification, to this
Freezing point in bright is tested for-40 DEG C of coolants, requires to be not less than during density (20 DEG C) of engine coolant in standard
1.068 g/cm3, measured value is 1.084g/cm3；Requiring the freezing point not higher than-40 DEG C of coolant in standard, measured value is-46
℃；The boiling point requiring coolant in standard is not less than 107.5 DEG C, and measured value is 108 DEG C；The pH value requiring coolant in standard exists
Between 7.5～11, measured value is 8.9；In glassware corrosion test piece changing value is tested, standard requires the change of red copper
Between-5～+5 mg/ sheets, measured value is-1 mg/ sheet, standard requires the change of pyrite between-5～+5mg/ sheets, real
Measured value is-1mg/ sheet, requires the change of steel in standard between-10～+10 mg/ sheets, and measured value is 1 mg/ sheet, wants in standard
Asking the change of cast iron between-10～+10 mg/ sheets, measured value is-1 mg/ sheet, standard requires the change of scolding tin-30～
Between+30 mg/ sheets, measured value is 4 mg/ sheets, standard requires the change of cast aluminium between-30～+30 mg/ sheets, measured value
For-6 mg/ sheets, can show that the cold of the present invention goes liquid to meet national standard according to above experimental data, coolant effect reaches
With by the glycol-cooled liquid quality that oil is raw material production.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention
Detailed description of the invention
Seeing Fig. 1, lightness-removing column is 1, and waste material input channel is 2, and lightness-removing column reboiler is 3, and lightness-removing column tower top pipeline is 4,
Lightness-removing column tower bottom pipeline is 5, and discharging pipeline at the bottom of one-level rectifying tower is 6, and one-level rectifying column is 7, and one-level rectifying column reboiler is
8, fluid reservoir is 9, and two-stage rectification tower is 10, and two-stage rectification tower condenser is 11, and two-stage rectification tower return tank is 12, one-level essence
Evaporating tower condenser is 13, and two-stage rectification tower reboiler is 14, and stirred tank is 15, and one-level rectifying tower push pipe road is 16, two grades
Rectifying tower bottom pipeline is 17, and discharge line is 18, and one-level rectifying column holding vessel is 19, and the first valve is 20, and the second valve is
21, the first pipeline is 22, and return tank discharge pipe is 23, and condenser at the bottom of two-stage rectification tower tower is 24, one-level rectifying column overhead condensation
Device is 25, and one-level rectifying column top return tank is 26, and one-level rectifying tower top discharge pipe is 27.
A kind of coal-ethylene glycol waste material prepares the process units of engine coolant, it is characterised in that include lightness-removing column,
One-level rectifying column, two-stage rectification tower and stirred tank, the side of lightness-removing column 1 has waste material input channel 2, lightness-removing column 1 bottom to be provided with
Lightness-removing column reboiler 3, lightness-removing column 1 tower top has lightness-removing column tower top pipeline 4, has lightness-removing column tower bottom pipeline 5 and one-level at the bottom of lightness-removing column 1 tower
Rectifying column 7 connects, and one-level rectifying column 7 bottom is provided with one-level rectifying column reboiler 8, is provided with one-level at the bottom of one-level rectifying column 7 tower
Discharging pipeline 6 at the bottom of rectifying tower, discharging pipeline 6 at the bottom of one-level rectifying tower is connected with fluid reservoir 9 through the first pipeline 22, one-level rectification
At the bottom of tower tower, discharging pipeline 6 is also connected with discharge line 18, and one-level rectifying column 7 tower top is provided with one-level rectifying tower push pipe road 16 and depends on
Secondary it is connected with one-level rectifying column overhead condenser 25, one-level rectifying column top return tank 26, one-level rectifying column top return tank 26
Outlet connect top and the one-level rectifying tower top discharge pipe 27 of one-level rectifying column 7 respectively, one-level rectifying column 7 is through one-level rectifying column
Side line condenser 13 and one-level rectifying column side line holding vessel 19 connect, one-level rectifying column side line holding vessel 19 and two-stage rectification tower 10
Be connected, two-stage rectification tower 10 tower top outlet through pipeline successively with two-stage rectification tower condenser 11, two-stage rectification tower return tank 12
Being connected, two-stage rectification tower return tank 12 bottom is connected with two-stage rectification tower 10 top and return tank discharge pipe 23 respectively, two grades of essences
Evaporate the two-stage rectification tower tower bottom pipeline 17 arranged at the bottom of tower 10 tower to be connected with condenser 24 at the bottom of two-stage rectification tower tower, two-stage rectification tower tower
The outlet of end condenser 24 connects the first pipeline 22, and two-stage rectification tower 10 bottom is provided with two-stage rectification tower reboiler 14, fluid reservoir
9 are connected with stirred tank 15 by discharge pipe, and stirred tank 15 side also has a charging aperture, and bottom is provided with discharging opening.
Arranging heater in described stirred tank 15, mode of heating is that chuck heating, steam-coil-heater, steam directly add
One or more of heat.
Discharging pipeline 6 at the bottom of described one-level rectifying tower arranges two and is in charge of line, is in charge of on line respectively and arranges for two
One valve 20 and the second valve 21, the first valve 20 is arranged on the first pipeline 22 of fluid reservoir 9, and the second valve 21 is installed
On the discharge line 18 outside system battery limit (BL).
The technique preparing engine coolant with coal-ethylene glycol waste material, coal-ethylene glycol waste material passes through waste material input channel
2 enter lightness-removing column 1, the light component methanol in raw material, dimethyl carbonate, second alcohol and water are steamed out from tower top by this tower, from
Lightness-removing column tower top pipeline 4 flows out, and the boiling point component more than 100 DEG C flows to one-level rectifying column 7, warp by lightness-removing column tower bottom pipeline 5
Crossing one-level rectifying column 7, the boiling point component less than 165 DEG C flows out through one-level rectifying tower push pipe road 16 from tower top, and boiling point is more than
The component of 165 DEG C flows out from the bottom of tower, flows out from discharging pipeline 6 at the bottom of one-level rectifying tower, when boiling in feed coal preparing ethylene glycol waste material
When the point constituent mass mark more than 260 DEG C is more than 1%, passes sequentially through one-level rectifying column condenser 13 and one-level rectifying column stores
Tank 19, subsequently into two-stage rectification tower 10, the boiling point component less than 165 DEG C flows out from tower top, passes sequentially through two-stage rectification tower cold
Condenser 11 and two-stage rectification tower return tank 12, the component more than 165 DEG C of the boiling point at the bottom of tower is flowed by two-stage rectification tower tower bottom pipeline 17
To fluid reservoir 9, from fluid reservoir 9, enter to stirred tank 15, then in stirred tank 15, inject deionized water 20 by weight
Part, polyacrylate 0.01 part, sodium nitrite 1 part, disodium hydrogen phosphate 2 parts, methacrylate 0.1 part and methyl blue 0.001
Part, stirring, to being completely dissolved, i.e. obtains engine coolant.
Described at discharging pipeline 6 at the bottom of one-level rectifying tower, when big containing boiling point in the discharging fraction at the bottom of one-level rectifying tower
When the fraction of 260 DEG C, close the first valve led on fluid reservoir 9 pipeline, open towards the on system battery limit (BL) external pipeline
Two valves, when not containing the boiling point fraction more than 260 DEG C in the fraction at the bottom of one-level rectifying tower, open and manage towards fluid reservoir 9
The first valve 20 on line, closes the second valve 21 led on system battery limit (BL) external pipeline.
The present invention is illustrated by above-described embodiment, rather than limiting the scope of the invention.In any this area
Technical staff be easy to the flow process in the present invention simply be revised or replaces, therefore the present invention is only by the present invention
The content of claim and scope limit.
Claims (5)
1. the process units preparing engine coolant with coal-ethylene glycol waste material, it is characterised in that include lightness-removing column, one
Level rectifying column, two-stage rectification tower and stirred tank, there is waste material input channel (2) side of lightness-removing column (1), and lightness-removing column (1) bottom is pacified
Equipped with lightness-removing column reboiler (3), lightness-removing column (1) tower top has lightness-removing column tower top pipeline (4), has lightness-removing column tower at the bottom of lightness-removing column (1) tower
Bottom pipeline (5) and one-level rectifying column (7) connect, and one-level rectifying column (7) bottom is provided with one-level rectifying column reboiler (8), one-level
Being provided with discharging pipeline (6) at the bottom of one-level rectifying tower at the bottom of rectifying column (7) tower, at the bottom of one-level rectifying tower, discharging pipeline (6) is through first
Pipeline (22) is connected with fluid reservoir (9), and at the bottom of one-level rectifying tower, discharging pipeline (6) is also connected with discharge line (18), one-level essence
Evaporate tower (7) tower top be provided with one-level rectifying tower push pipe road (16) successively with one-level rectifying column overhead condenser (25), one-level essence
Evaporating column overhead return tank (26) to be connected, the outlet of one-level rectifying column top return tank (26) connects the upper of one-level rectifying column (7) respectively
Portion and one-level rectifying tower top discharge pipe (27), one-level rectifying column (7) is through one-level rectifying column side line condenser (13) and one-level essence
Evaporating tower side line holding vessel (19) to connect, one-level rectifying column side line holding vessel (19) is connected with two-stage rectification tower (10), two grades of essences
Evaporate tower (10) tower top outlet to be connected with two-stage rectification tower condenser (11), two-stage rectification tower return tank (12) successively through pipeline, two
Level rectifier column reflux tank (12) bottom is connected with two-stage rectification tower (10) top and return tank discharge pipe (23) respectively, two grades of essences
Evaporate two-stage rectification tower tower bottom pipeline (17) arranged at the bottom of tower (10) tower to be connected with condenser (24) at the bottom of two-stage rectification tower tower, two grades of essences
Evaporating the outlet of condenser (24) at the bottom of tower tower and connect the first pipeline (22), two-stage rectification tower (10) bottom is provided with two-stage rectification tower and boils
Device (14), fluid reservoir (9) is connected with stirred tank (15) by discharge pipe, and stirred tank (15) side also has a charging
Mouthful, bottom is provided with discharging opening.
The process units of engine coolant is prepared the most according to claim 1 with coal-ethylene glycol waste material, it is characterised in that
Arranging heater in described stirred tank (15), mode of heating is chuck heating, steam-coil-heater, steam direct heating
One or more.
The process units of engine coolant is prepared the most according to claim 1 with coal-ethylene glycol waste material, it is characterised in that
Discharging pipeline (6) at the bottom of described one-level rectifying tower arranges two and is in charge of line, is in charge of on line respectively and arranges the first valve for two
(20) and the second valve (21), the first valve (20) is arranged on first pipeline (22) of fluid reservoir (9), the second valve
(21) it is arranged on the discharge line (18) outside system battery limit (BL).
4. utilize preparing the process units of engine coolant with coal-ethylene glycol waste material and prepare electromotor described in claim 1
The technique of coolant, it is characterised in that coal-ethylene glycol waste material enters lightness-removing column (1) by waste material input channel (2), by this
Light component methanol in raw material, dimethyl carbonate, second alcohol and water are steamed out by tower from tower top, flow from lightness-removing column tower top pipeline (4)
Going out, the boiling point component more than 100 DEG C flows to one-level rectifying column (7), through one-level rectifying column by lightness-removing column tower bottom pipeline (5)
(7), the boiling point component less than 165 DEG C flows out through one-level rectifying tower push pipe road (16) from tower top, the boiling point group more than 165 DEG C
Divide and flow out from the bottom of tower, flow out from discharging pipeline (6) at the bottom of one-level rectifying tower, when feed coal preparing ethylene glycol waste material mid-boiling point is more than
When the constituent mass mark of 260 DEG C is more than 1%, pass sequentially through one-level rectifying column condenser (13) and one-level rectifying column holding vessel
(19), subsequently into two-stage rectification tower (10), the boiling point component less than 165 DEG C flows out from tower top, passes sequentially through two-stage rectification tower
Condenser (11) and two-stage rectification tower return tank (12), the component more than 165 DEG C of the boiling point at the bottom of tower is by managing at the bottom of two-stage rectification tower tower
Road (17) flows to fluid reservoir (9), enters to stirred tank (15) from fluid reservoir (9), then in stirred tank (15) by weight
Meter injects deionized water 20 parts, polyacrylate 0.01 part, sodium nitrite 1 part, disodium hydrogen phosphate 2 parts, methacrylate 0.1
Part and methyl blue 0.001 part, stirring, to being completely dissolved, i.e. obtains engine coolant.
The technique preparing engine coolant with coal-ethylene glycol waste material the most according to claim 4, it is characterised in that described
In discharging pipeline (6) at the bottom of one-level rectifying tower, when the discharging fraction at the bottom of one-level rectifying tower contains boiling point evaporating more than 260 DEG C
Timesharing, closes the first valve led on fluid reservoir (9) pipeline, opens towards the second valve on system battery limit (BL) external pipeline, when
When the fraction at the bottom of one-level rectifying tower not containing boiling point more than the fraction of 260 DEG C, open towards the on fluid reservoir (9) pipeline
One valve (20), closes the second valve (21) led on system battery limit (BL) external pipeline.
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| CN108997085B (en) * | 2018-07-11 | 2021-08-17 | 高化学（江苏）化工新材料有限责任公司 | Method and system for recovering by-products in dimethyl oxalate synthesis process |
| CN109701995B (en) * | 2019-01-25 | 2021-09-24 | 程月刚 | Preparation method for producing coal washing agent by using alcohol waste |
| CN115124977A (en) * | 2022-02-22 | 2022-09-30 | 河北工业大学 | Antifreezing solution prepared from products obtained after vacuum distillation of coal-to-ethylene glycol byproducts |
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