CN112755568A - Solvent dehydration tower gas phase system with pressure reduction and energy saving performance - Google Patents
Solvent dehydration tower gas phase system with pressure reduction and energy saving performance Download PDFInfo
- Publication number
- CN112755568A CN112755568A CN202011602772.4A CN202011602772A CN112755568A CN 112755568 A CN112755568 A CN 112755568A CN 202011602772 A CN202011602772 A CN 202011602772A CN 112755568 A CN112755568 A CN 112755568A
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- China
- Prior art keywords
- gas phase
- dehydration tower
- solvent dehydration
- line
- main line
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- 230000018044 dehydration Effects 0.000 title claims abstract description 24
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 24
- 239000002904 solvent Substances 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0054—General arrangements, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
- B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
- B01D5/009—Collecting, removing and/or treatment of the condensate
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
本发明公开了一种具有降压节能性的溶剂脱水塔气相系统，包括溶剂脱水塔，溶剂脱水塔的顶部与主管线一的一端相连通，主管线一的另一端通过各分支管线一与各空冷器相连通，各空冷器通过各分支管线二与主管线二的一端相连通，主管线二的另一端与气相冷却器相连通，气相冷却器通过主管线三与气相冷凝液收集罐相连通；跨线管线的一端与主管线一相连通，另一端与主管线二相连通。本发明通过采用跨线管线的结构，降低了溶剂脱水塔的塔压以及蒸汽的消耗。The invention discloses a gas phase system of a solvent dehydration tower with pressure reduction and energy saving, comprising a solvent dehydration tower, the top of the solvent dehydration tower is connected with one end of a main line 1, and the other end of the main line 1 is connected with each branch line 1 through each branch line 1. The air coolers are connected to each other, each air cooler is connected to one end of the main line two through each branch line two, the other end of the main line two is connected to the gas phase cooler, and the gas phase cooler is connected to the gas phase condensate collection tank through the main line three. ; One end of the cross-line pipeline is connected with the main line 1, and the other end is connected with the main line 2. The invention reduces the tower pressure and steam consumption of the solvent dehydration tower by adopting the structure of the cross-line pipeline.
Description
Technical Field
The invention relates to the technical field of gas phase of solvent dehydration towers, in particular to a gas phase system of a solvent dehydration tower with pressure reduction and energy saving properties.
Background
The gas-phase outlet of the solvent dehydration tower is provided with an air cooler, the steam from the top of the tower is cooled by air mainly so as to save the cooling water consumption of a downstream cooler, and the gas-phase outlet pipeline is designed to be 60 inches, is made of 316L and has the pressure grade of 150 pounds.
In actual operation, the overhead pressure is about 10-12KPa, and the pressure is higher, which affects the steam consumption.
Disclosure of Invention
The invention provides a gas phase system of a solvent dehydration tower with pressure reduction and energy saving properties to solve the problems.
In order to solve the technical problems, the technical scheme of the invention is as follows: the solvent dehydration tower gas-phase system with the pressure reduction and energy saving performance comprises a solvent dehydration tower, wherein the top of the solvent dehydration tower is communicated with one end of a main pipeline I, the other end of the main pipeline I is communicated with each air cooler through each branch pipeline I, each air cooler is communicated with one end of a main pipeline II through each branch pipeline II, the other end of the main pipeline II is communicated with a gas-phase cooler, and the gas-phase cooler is communicated with a gas-phase condensate collecting tank through a main pipeline III; one end of the overline pipeline is communicated with the first main pipeline, and the other end of the overline pipeline is communicated with the second main pipeline.
Further, the flow area of the cross-line pipeline is 36% of the flow area of the main pipeline.
Further, the material of the over-line pipeline is 316L, and the pressure level is 150 pounds.
The invention reduces the tower pressure of the solvent dehydration tower and the consumption of steam by adopting the structure of the over-line pipeline.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Wherein: 1. the device comprises a solvent dehydration tower, 2, an air cooler, 3, a gas phase cooler, 4, a gas phase condensate collecting tank, 5 and a cross-line pipeline.
Detailed Description
The following description of the present invention will be made with reference to fig. 1.
The solvent dehydration tower gas phase system with the pressure reduction and energy saving performance comprises a solvent dehydration tower 1, wherein the top of the solvent dehydration tower 1 is communicated with one end of a main pipeline I, the other end of the main pipeline I is communicated with each air cooler 2 through each branch pipeline I, each air cooler 2 is communicated with one end of a main pipeline II through each branch pipeline II, the other end of the main pipeline II is communicated with a gas phase cooler 3, and the gas phase cooler 3 is communicated with a gas phase condensate collecting tank 4 through a main pipeline III; one end of the overline pipeline 5 is communicated with the first main pipeline, and the other end is communicated with the second main pipeline.
The flow area of the jumper line 5 is 36% of the flow area of the main line.
The material of the crossover line 5 is 316L, with a pressure rating of 150 lbs.
The overline pipeline 5 can be arranged according to the actual situation on site, the pipeline interference on site is avoided, and the pipeline stress requirement is met.
After the transformation, the tower pressure of the solvent dehydration tower 1 is reduced to 7-10KPa from 10-12KPa before the transformation, the pressure is reduced by about 2-3KPa, and the steam is saved by about 10-20%, although the usage amount of the circulating cooling water is increased, the steam saving benefit is larger than the increased cost of the circulating cooling water.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011602772.4A CN112755568A (en) | 2020-12-29 | 2020-12-29 | Solvent dehydration tower gas phase system with pressure reduction and energy saving performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011602772.4A CN112755568A (en) | 2020-12-29 | 2020-12-29 | Solvent dehydration tower gas phase system with pressure reduction and energy saving performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112755568A true CN112755568A (en) | 2021-05-07 |
Family
ID=75697448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011602772.4A Pending CN112755568A (en) | 2020-12-29 | 2020-12-29 | Solvent dehydration tower gas phase system with pressure reduction and energy saving performance |
Country Status (1)
| Country | Link |
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| CN (1) | CN112755568A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307211A (en) * | 2014-10-17 | 2015-01-28 | 山东齐鲁石化工程有限公司 | Process and system for separating isoprene rubber latex degassing gas |
| CN204233807U (en) * | 2014-11-25 | 2015-04-01 | 北京石油化工工程有限公司 | A kind of thermal bypass rectifying tower top control pressurer system |
| CN111748387A (en) * | 2020-07-08 | 2020-10-09 | 西安长庆科技工程有限责任公司 | A device and method for purifying butane in a column pressure-stabilized debutanizer |
| CN214388945U (en) * | 2020-12-29 | 2021-10-15 | 逸盛大化石化有限公司 | Solvent dehydration tower gas phase system with pressure reduction and energy saving performance |
-
2020
- 2020-12-29 CN CN202011602772.4A patent/CN112755568A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307211A (en) * | 2014-10-17 | 2015-01-28 | 山东齐鲁石化工程有限公司 | Process and system for separating isoprene rubber latex degassing gas |
| CN204233807U (en) * | 2014-11-25 | 2015-04-01 | 北京石油化工工程有限公司 | A kind of thermal bypass rectifying tower top control pressurer system |
| CN111748387A (en) * | 2020-07-08 | 2020-10-09 | 西安长庆科技工程有限责任公司 | A device and method for purifying butane in a column pressure-stabilized debutanizer |
| CN214388945U (en) * | 2020-12-29 | 2021-10-15 | 逸盛大化石化有限公司 | Solvent dehydration tower gas phase system with pressure reduction and energy saving performance |
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