CN109678678A - MTBE desulfurization purifying plant - Google Patents
MTBE desulfurization purifying plant Download PDFInfo
- Publication number
- CN109678678A CN109678678A CN201910077781.7A CN201910077781A CN109678678A CN 109678678 A CN109678678 A CN 109678678A CN 201910077781 A CN201910077781 A CN 201910077781A CN 109678678 A CN109678678 A CN 109678678A
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- CN
- China
- Prior art keywords
- tower
- pipeline
- mtbe
- desulfurization
- connect
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- 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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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/34—Separation; Purification; Stabilisation; Use of additives
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
It include the plate type desulfurization tower arranged vertically the invention discloses a kind of MTBE desulfurization purifying plant, return pipe is provided between in the middle part of the tower bottom of the plate type desulfurization tower and tower body, the return pipe is connected with desulfurization pump by pipeline in its low side, the desulfurization pump is connect with weight sulphur tank pipeline, is additionally provided with reboiler on the return pipe；It further include finished product pipeline, finished product pipeline one end is connect by controlling flow valve group I with plate type desulfurization tower, the other end is connect by controlling flow valve group II with MTBE finished pot, it further include tower top cooler, return tank, reflux pump, the plate type desulfurization tower is connect at the top of it with tower top cooler pipeline, the tower top cooler is connect with return tank pipeline, and the return tank is connected to control flow valve group I through reflux pump and controls on the finished product pipeline between flow valve group II.The present invention can effectively reduce finished product MTBE sulfur content.
Description
Technical field
The invention belongs to petrochemical industry, in particular to a kind of MTBE process units.
Background technique
MTBE is the trade name of methyl tertiary butyl ether(MTBE), is the production that isobutene and methanol react under strongly acidic catalyst effect
Object, it is mainly used for substitution lead tetraethide as dopes for gasoline.The major function of MTBE device is
It is raw material using the mixing C-4-fraction and outsourcing methanol of depropanization device production, with the large aperture QRE-1, D-006 highly acid sun
Ion exchange resin is catalyst, and reaction generates MTBE.Because of MTBE octane number with higher and lower vapour pressure, he is not only
The octane number of gasoline can be improved, and discharge of steam object can be reduced simultaneously again due to containing oxygen molecule in MTBE molecule, have
Help fuel completely burned, reduces hydro carbons and CO emission in automobile exhaust gas, therefore, MTBE is raw to protection environment
Produce the ideal blend component of unleaded high-knock rating gasoline.
And it is generally relatively high without desulfurization MTBE sulfur content, by after automobile burning by the tail gas of motor vehicle exhaust emission
The higher easy formation for aggravating acid rain of sulfide content, the ownership of China's automobile is in explosive growth, in Chinese large- and-medium size cities,
Motor vehicle exhaust emission has become the main source of atmospheric pollution.So country requires more stringent, manufacturer to quality of gasoline
It must adapt to environmental requirement, make great efforts the sulfur content for reducing MTBE.
Summary of the invention
Technical problem to be solved by the present invention lies in a kind of MTBE desulfurization purifying plant is provided, it can adapt to environmental protection and want
It asks, effectively reduces finished product MTBE sulfur content.
To solve the above problems, MTBE desulfurization purifying plant of the invention includes the plate type desulfurization tower arranged vertically, in institute
It states between in the middle part of the tower bottom and tower body of plate type desulfurization tower and is provided with return pipe, the return pipe is connected in its low side by pipeline
Desulfurization pump, the desulfurization pump are connect with weight sulphur tank pipeline, are additionally provided with reboiler on the return pipe；It further include finished product pipeline,
Finished product pipeline one end by control flow valve group I connect with plate type desulfurization tower, the other end by control flow valve group II and
The connection of MTBE finished pot, further includes tower top cooler, return tank, reflux pump, the plate type desulfurization tower is cold with tower top at the top of it
But device pipeline connects, and the tower top cooler is connect with return tank pipeline, and the return tank is connected to control flow through reflux pump
On finished product pipeline between valve group I and control flow valve group II.
The present invention will be high boiling by distillation by sulfur-bearing MTBE according to boiling-point difference according to sulfur speciation in MTBE and the regularity of distribution
Point sulfide is cut off in MTBE.The MTBE of the sulfur-bearing come from MTBE device catalytic distillation tower bottom, enters extraction distillation column
Middle part, the MTBE of vaporization through tower upper, go out at the top of tower by low-sulfur MTBE product；Unboiled MTBE flows downward
When gradually vaporized, to the substantially all vaporization of tower bottom MTBE, sulfide and other heavy constituents from tower bottom be discharged.Make in MTBE product
Sulphur is down to 10PPM or less and improves the purity of MTBE to a certain extent.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of MTBE desulfurization purifying plant of the invention.
Specific embodiment
As shown in Figure 1, MTBE desulfurization purifying plant of the invention includes the plate type desulfurization tower 1 arranged vertically, in the plate
Return pipe 10 is provided between in the middle part of the tower bottom and tower body of formula desulfurizing tower 1, the return pipe 10 is connected in its low side by pipeline
There is desulfurization to pump 2, the desulfurization pump 2 is connect with weight sulphur tank pipeline, is additionally provided with reboiler 3 on the return pipe 10；Further include into
Quality control road 100, described 100 one end of finished product pipeline is connect by control flow valve group I 30 with plate type desulfurization tower 1, the other end passes through
Control flow valve group II 31 is connect with MTBE finished pot, further includes tower top cooler 5, return tank 6, reflux pump 4, described board-like to take off
Sulphur tower 1 is connect at the top of it with 5 pipeline of tower top cooler, and the tower top cooler 5 is connect with 6 pipeline of return tank, the reflux
Tank 6 is connected to control flow valve group I 30 through reflux pump 4 and controls on the finished product pipeline 100 between flow valve group II 31.
The present invention will be high boiling by distillation by sulfur-bearing MTBE according to boiling-point difference according to sulfur speciation in MTBE and the regularity of distribution
Point sulfide is cut off in MTBE.The MTBE of the sulfur-bearing come from MTBE device catalytic distillation tower bottom, enters extraction distillation column
Middle part, the MTBE of vaporization through tower upper, go out at the top of tower by low-sulfur MTBE product；Unboiled MTBE flows downward
When gradually vaporized, to the substantially all vaporization of tower bottom MTBE, sulfide and other heavy constituents from tower bottom be discharged.Make in MTBE product
Sulphur is down to 10PPM or less and improves the purity of MTBE to a certain extent.
It is verified through production, the present apparatus can effectively reduce undesulfured sulfur content and comply with national standard, product
MTBE high income, up to 99.5~99.8%；No three wastes generates, and the high sulphur component of tower bottom can remove hydrogenation plant.
Claims (1)
1. a kind of MTBE desulfurization purifying plant, including the plate type desulfurization tower (1) arranged vertically, it is characterised in that: described board-like
It is provided with return pipe (10) between in the middle part of the tower bottom and tower body of desulfurizing tower (1), the return pipe (10) passes through pipeline in its low side
It is connected with desulfurization pump (2), the desulfurization pump (2) connect with weight sulphur tank pipeline, is additionally provided with reboiler on the return pipe (10)
(3)；It further include finished product pipeline (100), described finished product pipeline (100) one end passes through control flow valve group I (30) and board-like desulfurization
Tower (1) connection, the other end are connect by controlling flow valve group II (31) with MTBE finished pot, are further included tower top cooler (5), are returned
Tank (6), reflux pump (4) are flowed, the plate type desulfurization tower (1) connect at the top of it with tower top cooler (5) pipeline, and the tower top is cold
But device (5) is connect with return tank (6) pipeline, the return tank (6) through reflux pump (4) be connected to control flow valve group I (30) with
It controls on the finished product pipeline (100) between flow valve group II (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077781.7A CN109678678A (en) | 2019-01-28 | 2019-01-28 | MTBE desulfurization purifying plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077781.7A CN109678678A (en) | 2019-01-28 | 2019-01-28 | MTBE desulfurization purifying plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109678678A true CN109678678A (en) | 2019-04-26 |
Family
ID=66194891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910077781.7A Pending CN109678678A (en) | 2019-01-28 | 2019-01-28 | MTBE desulfurization purifying plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109678678A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203976675U (en) * | 2014-07-04 | 2014-12-03 | 辽宁嘉合精细化工有限公司 | A kind of MTBE catalytic distillation device |
| CN204723789U (en) * | 2015-06-05 | 2015-10-28 | 山东金诚重油化工技术研究院 | A kind of MTBE deep desulfuration device |
| CN208362221U (en) * | 2018-04-20 | 2019-01-11 | 淄博齐翔腾达化工股份有限公司 | Remove the device of higher boiling sulfur compound in methyl tertiary butyl ether(MTBE) |
-
2019
- 2019-01-28 CN CN201910077781.7A patent/CN109678678A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203976675U (en) * | 2014-07-04 | 2014-12-03 | 辽宁嘉合精细化工有限公司 | A kind of MTBE catalytic distillation device |
| CN204723789U (en) * | 2015-06-05 | 2015-10-28 | 山东金诚重油化工技术研究院 | A kind of MTBE deep desulfuration device |
| CN208362221U (en) * | 2018-04-20 | 2019-01-11 | 淄博齐翔腾达化工股份有限公司 | Remove the device of higher boiling sulfur compound in methyl tertiary butyl ether(MTBE) |
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