CN114191882A - Effective purification method for aromatic hydrocarbon device solvent system - Google Patents
Effective purification method for aromatic hydrocarbon device solvent system Download PDFInfo
- Publication number
- CN114191882A CN114191882A CN202111356547.1A CN202111356547A CN114191882A CN 114191882 A CN114191882 A CN 114191882A CN 202111356547 A CN202111356547 A CN 202111356547A CN 114191882 A CN114191882 A CN 114191882A
- Authority
- CN
- China
- Prior art keywords
- solvent
- line
- filter
- deteriorated
- resin regeneration
- 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.)
- Pending
Links
- 239000002904 solvent Substances 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 13
- 150000004945 aromatic hydrocarbons Chemical class 0.000 title claims abstract description 9
- 238000000746 purification Methods 0.000 title claims abstract description 9
- 230000008929 regeneration Effects 0.000 claims abstract description 25
- 238000011069 regeneration method Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000004299 sodium benzoate Substances 0.000 claims abstract description 8
- 238000000895 extractive distillation Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 238000009990 desizing Methods 0.000 description 2
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/003—Filters in combination with devices for the removal of liquids
- B01D36/006—Purge means
-
- 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
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
- B01D3/40—Extractive distillation
Abstract
The invention discloses an effective purification method for an aromatic hydrocarbon device solvent system, which aims to remove impurities contained in the system by using a deteriorated solvent filter, so that the solvent entering resin regeneration is clean, the long-period operation of a resin regeneration feeding heat exchanger is ensured, and the resin regeneration operation period is further increased. The content of the method is that a line is added at the outlet of the lean solvent filter (SR-201), one end of the line is connected with the outlet of the lean solvent filter (SR-201), and the other end of the line is connected with the inlet of the deteriorated solvent water cooler (E-211). The influence of feeding impurities on the resin regeneration feeding heat exchanger can be reduced, the service cycle of resin regeneration is prolonged, and meanwhile, the influence of impurities entering a storage tank on a storage tank solvent is avoided.
Description
Technical Field
The invention belongs to purification and transformation of a solvent system of an aromatic hydrocarbon device, and ensures that the solvent system can run for a long period and the solvent can better process light and heavy component separation.
Background
The existing deteriorated solvent regeneration system feeding line (such as ZL98101201.9) is a circuit, wherein a circulating solvent water cooler outputs a lean solvent to a lean solvent filter SR-201, and the lean solvent is filtered and output to an extractive distillation tower. In addition, the circulating solvent water cooler outputs another degraded solvent water cooler E-211, then to feed filter SR-251, and to the resin regeneration system.
The prior art has the following defects:
1. the poor solvent entering the deteriorated solvent regeneration system is not purified, so that the heat exchange efficiency of a deteriorated solvent water cooler E-211 is reduced, a feeding filter SR-251 is frequently blocked, and the long-period operation of the poor solvent regeneration system cannot be guaranteed;
2. the solvent system requires a desizing when the apparatus is shut down, resulting in a large amount of impurities in the solvent storage tank.
The invention improves the linear position of the aromatic hydrocarbon solvent desizing agent, and avoids the problems.
Disclosure of Invention
The invention aims to remove impurities contained in a system by using a deteriorated solvent filter, so that the solvent entering the resin regeneration is clean, the long-period operation of a resin regeneration feeding heat exchanger is ensured, and the resin regeneration operation period is further increased. The purpose of the invention is realized by the following technical scheme:
the solvent system operation is tracked and analyzed in a workshop for a long time, and a material line for removing the deteriorated solvent regeneration system is added at the outlet of the aromatic hydrocarbon device lean solvent filter SR-201, so that the operation problem of the device is solved.
The technical scheme of the invention is as follows: the effective purification method of the aromatic hydrocarbon device solvent system is characterized in that a line is added at the outlet of a lean solvent filter (SR-201), one end of the line is connected with the outlet of the lean solvent filter (SR-201), and the other end of the line is connected with the inlet of a deteriorated solvent water cooler (E-211).
The invention has the beneficial effects that:
the influence of feeding impurities on the resin regeneration feeding heat exchanger can be reduced, the service cycle of resin regeneration is prolonged, and meanwhile, the influence of impurities entering a storage tank on a storage tank solvent is avoided.
Drawings
FIG. 1 is a process flow diagram of the present invention
Detailed Description
The line of the feed line of the deteriorated solvent regeneration system is that the circulating solvent water cooler outputs the lean solvent to a lean solvent filter SR-201, and the lean solvent is filtered and output to the extraction distillation tower. In addition, the circulating solvent water cooler outputs another degraded solvent water cooler E-211, then the degraded solvent water cooler is output to a feeding filter SR-251 and is output to a resin regeneration system,
the effective purification method of the aromatic hydrocarbon device solvent system comprises the steps that a line is additionally arranged at an outlet of a lean solvent filter SR-201, one end of the line is connected with the outlet of the lean solvent filter SR-201, and the other end of the line is connected with an inlet of a deteriorated solvent water cooler E-211;
a material line for removing the deteriorated solvent regeneration system is added at the outlet of the lean solvent filter SR-201, so that the material entering the deteriorated solvent regeneration system is purified, the temperature of a feeding heat exchanger is not influenced, the blockage phenomenon of the feeding filter SR-251 of the solvent regeneration system is eliminated, and the deteriorated solvent regeneration system continuously runs for one year from the start of the vehicle after 7 months overhaul in 2018 to 7 months in 2019.
Claims (4)
1. The effective purification method of the aromatic hydrocarbon device solvent system is characterized in that a line is added at the outlet of a lean solvent filter (SR-201), one end of the line is connected with the outlet of the lean solvent filter (SR-201), and the other end of the line is connected with the inlet of a deteriorated solvent water cooler (E-211).
2. The method for efficient purification of an aromatics plant solvent system of claim 1, wherein the method is applied to a degraded solvent regeneration system.
3. The method for effectively purifying the solvent system of an aromatic hydrocarbon device according to claim 2, wherein the circuit of the deteriorated solvent regeneration system is that the circulating solvent water cooler outputs the lean solvent to the lean solvent filter (SR-201), and the output is filtered and then sent to the extractive distillation tower; in addition, the circulating solvent water cooler outputs the degraded solvent water cooler (E-211) and then to the feed filter (SR-251) to the resin regeneration system.
4. A method for efficient purification of an aromatics plant solvent system as claimed in claim 2, wherein a line is added to purify the feed to the deteriorated solvent regeneration system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111356547.1A CN114191882A (en) | 2021-11-16 | 2021-11-16 | Effective purification method for aromatic hydrocarbon device solvent system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111356547.1A CN114191882A (en) | 2021-11-16 | 2021-11-16 | Effective purification method for aromatic hydrocarbon device solvent system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114191882A true CN114191882A (en) | 2022-03-18 |
Family
ID=80647720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111356547.1A Pending CN114191882A (en) | 2021-11-16 | 2021-11-16 | Effective purification method for aromatic hydrocarbon device solvent system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114191882A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2709446Y (en) * | 2004-06-21 | 2005-07-13 | 韩进东 | Purification device aromatics extractant sulfolane |
| CN101821359A (en) * | 2007-08-10 | 2010-09-01 | Amt国际股份有限公司 | Extractive distillation process for recovering aromatics from petroleum streams |
| CN102731472A (en) * | 2012-06-28 | 2012-10-17 | 中国石油化工股份有限公司 | Apparatus for reducing arene extraction solvent sulfolane, and application thereof |
| US20140261773A1 (en) * | 2013-03-15 | 2014-09-18 | Davco Technology, Llc | Automatic drain for fuel processor |
| CN104178205A (en) * | 2014-07-18 | 2014-12-03 | 中国石油化工股份有限公司 | Industrial plant for lowering operating cost of aromatic extraction system and application method thereof |
| CN213965228U (en) * | 2020-12-03 | 2021-08-17 | 青鼎木（武汉）生物科技有限公司 | Efficient plant extract discharging device |
-
2021
- 2021-11-16 CN CN202111356547.1A patent/CN114191882A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2709446Y (en) * | 2004-06-21 | 2005-07-13 | 韩进东 | Purification device aromatics extractant sulfolane |
| CN101821359A (en) * | 2007-08-10 | 2010-09-01 | Amt国际股份有限公司 | Extractive distillation process for recovering aromatics from petroleum streams |
| CN102731472A (en) * | 2012-06-28 | 2012-10-17 | 中国石油化工股份有限公司 | Apparatus for reducing arene extraction solvent sulfolane, and application thereof |
| US20140261773A1 (en) * | 2013-03-15 | 2014-09-18 | Davco Technology, Llc | Automatic drain for fuel processor |
| CN104178205A (en) * | 2014-07-18 | 2014-12-03 | 中国石油化工股份有限公司 | Industrial plant for lowering operating cost of aromatic extraction system and application method thereof |
| CN213965228U (en) * | 2020-12-03 | 2021-08-17 | 青鼎木（武汉）生物科技有限公司 | Efficient plant extract discharging device |
Non-Patent Citations (1)
| Title |
|---|
| 乔伟新: "劣化环丁砜再生技术的工业应用", 《炼油技术与工程》 * |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220318 |
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| RJ01 | Rejection of invention patent application after publication |