CN112546675A - Improved steam stripping structure of adsorption tower for leaking agent from bed layer - Google Patents
Improved steam stripping structure of adsorption tower for leaking agent from bed layer Download PDFInfo
- Publication number
- CN112546675A CN112546675A CN202011574764.3A CN202011574764A CN112546675A CN 112546675 A CN112546675 A CN 112546675A CN 202011574764 A CN202011574764 A CN 202011574764A CN 112546675 A CN112546675 A CN 112546675A
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- pipeline
- stripping
- filter
- raffinate
- adsorption tower
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- 238000001179 sorption measurement Methods 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000000605 extraction Methods 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000003463 adsorbent Substances 0.000 abstract description 15
- 239000003795 chemical substances by application Substances 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/24—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the treatment of the fractions to be distributed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
The invention relates to a technology for filtering an adsorbent during stripping of an adsorption tower of a bed leakage agent, in particular to an improved stripping structure of the adsorption tower of the bed leakage agent, which comprises the following steps: a liquid extraction system, a raffinate extraction system and a stripping line; the liquid extracting system and the raffinate extracting system are connected through a pipeline and are jointly connected to a stripping line, and the stripping line is connected to a compressor; the lower outlet of the extract liquid system is connected with the stripping line through a first pipeline, and the lower outlet of the raffinate system is connected to the first pipeline through a second pipeline and connected with the stripping line through the first pipeline; after improvement, when the adsorbent is exchanged in the adsorption tower, the adsorbent is prevented from being brought into the compressor to damage the compressor in the steam stripping step, and the smooth steam stripping operation is ensured.
Description
Technical Field
The invention relates to a technology for filtering an adsorbent during stripping of an adsorption tower of a bed leakage agent, in particular to an improved stripping structure of the adsorption tower of the bed leakage agent, and belongs to the field of petrochemical industry.
Background
In the field of petrochemical industry, the adsorbent leaks from the earlier-stage bed layer of the adsorption tower, and when the adsorbent is replaced in the adsorption tower, the adsorbent can be taken out in the stripping step and brought into a compressor, so that the compressor is damaged, and the stripping operation cannot be continued.
Disclosure of Invention
In view of the technical problems, the invention aims to provide an improved stripping structure of an adsorption tower with leaked adsorbent bed layers, which prevents the damage of a compressor caused by the fact that the adsorbent is brought into the compressor in a stripping step when the adsorbent is replaced in the adsorption tower after the improvement, and ensures the smooth operation of stripping.
In order to realize the aim, the invention respectively communicates the extract liquid and the raffinate lower line with the stripping line, and utilizes the original filter to filter the leaked adsorbent, and adopts the technical scheme that: bed leaks adsorption tower steam stripping improvement structure of agent includes: a liquid extraction system, a raffinate extraction system and a stripping line; the liquid extracting system and the raffinate extracting system are connected through a pipeline and are jointly connected to a stripping line, and the stripping line is connected to a compressor; the lower outlet of the extract liquid system is connected with the stripping line through a first pipeline, and the lower outlet of the raffinate system is connected to the first pipeline through a second pipeline and connected with the stripping line through the first pipeline;
furthermore, two ends of a pipeline connecting the liquid pumping system and the raffinate pumping system are respectively provided with a valve, and the valve is connected with an 8-shaped blind plate;
further, the extract system comprises: the device comprises an extract pipeline, a filter system is connected to the extract pipeline, a flow control valve lower line is arranged at an outlet close to the extract pipeline, the flow control valve lower line is connected with an inlet end of a first pipeline, and an outlet end of the first pipeline is connected to a stripping line;
furthermore, the extract liquid pipeline adopts a DN200 pipeline;
further, the filter system comprises: the device comprises a first filter, a second filter, a first filter front-back valve and a second filter front-back valve, wherein the first filter and the second filter are connected to a liquid extraction pipeline in a parallel connection mode;
further, the first filter and the second filter are mutually standby;
furthermore, the extract pipeline above the filter system is also provided with a flow transmission instrument and a temperature indicating instrument, so that the flow and temperature reading of the extract passing through the extract pipeline is facilitated;
furthermore, the first pipeline adopts DN200, 2TB pipeline;
further, the raffinate system comprises: the raffinate line is connected with a filter system, a pressure control valve offline is arranged at an outlet close to the raffinate line, the pressure control valve offline is connected with an inlet end of a second line, an outlet end of the second line is connected with the first line, and the second line is connected with a stripping line in an indirect mode;
furthermore, the raffinate pipeline adopts a DN350 pipeline;
further, the filtration system of the raffinate system comprises: the front end and the rear end of the filter are respectively provided with a valve;
furthermore, a flow transmission instrument and a temperature indicating instrument are also arranged on the raffinate pipeline above the filter system, so that the flow and temperature readings of the raffinate passing through the raffinate pipeline are facilitated;
furthermore, the second pipeline adopts DN350, 2TB pipeline;
further, a stripping line main gate valve is arranged below the position of the intersection of the extraction liquid pipeline and the raffinate pipeline, and a stripping line at the rear end of the main gate valve is provided with a three-way valve which is connected with the first pipeline.
Adopt above-mentioned strip line structure improvement and filter process, the absorbent that can filter the hourglass, its specific operation flow is:
the extract enters through an extract pipeline, is filtered in a filter system of the extract pipeline, and enters into a stripping line through a first pipeline for stripping after being filtered; the raffinate enters through a raffinate pipeline, is filtered in a filter system of the raffinate pipeline, enters into a first pipeline through a second pipeline after being filtered, and then enters into a stripping line from the first pipeline for stripping; in the process, the leaked adsorbent is filtered after the liquid extracting system and the raffinate extracting system are filtered in the filter, so that the adsorbent is prevented from being brought into the compressor during steam stripping.
Drawings
FIG. 1 is a process flow diagram before the improvement of the present invention.
FIG. 2 is a flow diagram of an improved process of the present invention.
In the figure, 1, stripping line, 2, first line, 3, second line, 4, extract line, 6, filter system, 7, flow transmission instrument, 8, temperature indicator instrument, 9, raffinate line, 10, stripping line main gate valve.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 2, the improved stripping structure of the adsorption tower for the bed leakage agent comprises: a liquid extraction system, a raffinate extraction system and a stripping line 1; the liquid extracting system and the raffinate extracting system are connected through a pipeline and are connected to a stripping line 1 together, and the stripping line 1 is connected to a compressor; the lower outlet of the extract liquid system is connected with the stripping line 1 through a first pipeline 2, and the lower outlet of the raffinate system is connected to the first pipeline 2 through a second pipeline 3 and connected with the stripping line 1 through the first pipeline 2;
the extract system comprises: the device comprises an extract pipeline 4, wherein a filter system 6 is connected to the extract pipeline 4, a flow control valve lower line is arranged at an outlet close to the extract pipeline 4, the flow control valve lower line is connected with an inlet end of a first pipeline 2, and an outlet end of the first pipeline 2 is connected to a stripping line 1;
the filter 6 system comprises: the device comprises a first filter, a second filter, a first filter front-back valve and a second filter front-back valve, wherein the first filter and the second filter are connected to an extract pipeline 4 in a parallel mode;
the first filter and the second filter are mutually standby;
the extract pipeline 4 above the filter system 6 is also provided with a flow transmission instrument 7 and a temperature indicating instrument 8, so that the flow and temperature reading of the extract passing through the extract pipeline is facilitated;
the first pipeline 2 adopts DN200, 2TB pipeline.
The raffinate system comprises: a raffinate pipeline 9, wherein the raffinate pipeline 9 is connected with a filter system 6, a pressure control valve lower line is arranged at an outlet close to the raffinate pipeline 9, the pressure control valve lower line is connected with an inlet end of a second pipeline 3, an outlet end of the second pipeline 3 is connected with a first pipeline 2, and the second pipeline 3 is connected with a stripping line 1 in an indirect mode;
the filtration system 6 of the raffinate system comprises: the front end and the rear end of the filter are respectively provided with a valve;
a flow transmission instrument 7 and a temperature indicator instrument 8 are further arranged on a raffinate pipeline 9 above the filter system 6, so that the flow and temperature readings of raffinate passing through the raffinate pipeline are facilitated;
the second pipeline 3 adopts DN350, 2TB pipeline;
a stripping line main gate valve 10 is arranged below the junction position of the pipeline connected with the extract liquid pipeline 4 and the raffinate pipeline 9 and the stripping line 1, a three-way valve is arranged on the stripping line 1 at the rear end of the main gate valve 10, and the three-way valve is connected with the first pipeline 2.
Adopt above-mentioned strip line structure improvement and filter process, the absorbent that can filter the hourglass, its specific operation flow is:
extract enters through an extract pipeline 4, is filtered in a filter system 6 of the extract pipeline 4, and enters into a steam stripping line 1 through a first pipeline 2 for steam stripping after being filtered; the raffinate enters through a raffinate pipeline 9, is filtered in a filter system 6 of the raffinate pipeline 9, enters into a first pipeline 2 through a second pipeline 3 after being filtered, and then enters into a stripping line 1 from the first pipeline 2 for stripping; in the process, the leaked adsorbent is filtered after the liquid extracting system and the raffinate extracting system are filtered in the filter, so that the adsorbent is prevented from being brought into the compressor during steam stripping.
After the invention is improved, the steam stripping line is added with a filter process, and 9 layers of leaked agents of the adsorption tower can be filtered, thereby ensuring the smooth steam stripping.
Claims (10)
1. The adsorption tower stripping improvement structure of bed leakage agent is characterized by comprising: a liquid extraction system, a raffinate extraction system and a stripping line; the liquid extracting system and the raffinate extracting system are connected through a pipeline and are jointly connected to a stripping line, and the stripping line is connected to a compressor; the lower outlet of the extract system is connected with the stripping line through a first pipeline, and the lower outlet of the raffinate system is connected to the first pipeline through a second pipeline and connected with the stripping line through the first pipeline.
2. The improved stripping structure of adsorption tower for leaked bed agent according to claim 1, characterized in that: the extract system comprises: the device comprises an extract pipeline, wherein a filter system is connected to the extract pipeline, a flow control valve is arranged at an outlet close to the extract pipeline and is connected with the inlet end of a first pipeline, and the outlet end of the first pipeline is connected to a stripping line.
3. The improved stripping structure of adsorption tower for leaked bed agent according to claim 2, characterized in that: the filter system comprises: the device comprises a first filter, a second filter, a first filter front-back valve, a second filter front-back valve, and a second filter front-back valve, wherein the first filter and the second filter are connected to a liquid extraction pipeline in a parallel connection mode.
4. The improved stripping structure of adsorption tower for leaked bed agent according to claim 3, characterized in that: the first filter and the second filter are mutually standby.
5. The improved stripping structure of adsorption tower for leaked bed agent according to claim 3, characterized in that: and the extract liquid pipeline above the filter system is also provided with a flow transmission instrument and a temperature indicating instrument.
6. The improved stripping structure of adsorption tower for leaked bed agent according to claim 1, characterized in that: the first pipeline adopts DN200, 2TB pipeline.
7. The improved stripping structure of adsorption tower for leaked bed agent according to claim 1, characterized in that: the raffinate system comprises: the raffinate pipeline is connected with a filter system, a pressure control valve is arranged at an outlet close to the raffinate pipeline, the pressure control valve is connected with an inlet end of a second pipeline, an outlet end of the second pipeline is connected with a first pipeline, and the second pipeline is connected with a stripping line in an indirect mode.
8. The improved stripping structure of adsorption tower for leaked bed agent according to claim 7, characterized in that: the filtration system of the raffinate system comprises: and the front end and the rear end of the filter are respectively provided with a valve.
9. The improved stripping structure of adsorption tower for leaked bed agent according to claim 1, characterized in that: the second pipeline adopts DN350, 2TB pipeline.
10. The improved stripping structure of adsorption tower for leaked bed agent according to claim 1, characterized in that: a main gate valve of a stripping line is arranged below the junction position of a pipeline connected with an extract pipeline and a raffinate pipeline and the stripping line, a three-way valve is arranged on the stripping line at the rear end of the main gate valve, and the main gate valve is connected with a first pipeline through the three-way valve.
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| CN202011574764.3A CN112546675B (en) | 2020-12-28 | 2020-12-28 | Improved structure of adsorption tower stripping of bed leakage agent |
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| CN202011574764.3A CN112546675B (en) | 2020-12-28 | 2020-12-28 | Improved structure of adsorption tower stripping of bed leakage agent |
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| CN112546675B CN112546675B (en) | 2023-10-13 |
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Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB353079A (en) * | 1929-05-02 | 1931-07-23 | Standard Oil Dev Co | Improvements in or relating to the absorption of gas and/or vapour in oil |
| GB682394A (en) * | 1948-09-25 | 1952-11-12 | Foster Wheeler Ltd | Improvements in and relating to methods of and apparatus for stripping volatile substances from fluids |
| JPH06182107A (en) * | 1992-12-24 | 1994-07-05 | Kubota Corp | Apparatus for adsorption and reaction |
| JPH07136445A (en) * | 1993-11-18 | 1995-05-30 | Sumitomo Heavy Ind Ltd | Desulfurization-denitration column |
| JPH10332659A (en) * | 1997-06-02 | 1998-12-18 | Uop Inc | Apparatus and process for adsorption and separation of pseudo moving bed |
| CN1205983A (en) * | 1997-07-22 | 1999-01-27 | 中国石油化工总公司 | Multisection stripping process for treating acid sewage from oil refinery |
| US20020090261A1 (en) * | 2000-11-16 | 2002-07-11 | Sansalone John J. | Adsorptive-filtration media for the capture of waterborne or airborne constituents |
| CN102220155A (en) * | 2010-04-15 | 2011-10-19 | 中国石油化工股份有限公司 | Method for utilizing aldehyde-contained water of furfural extraction solvent recovery system |
| US20120145594A1 (en) * | 2010-12-14 | 2012-06-14 | Uop Llc | Process for removing heavy polynuclear aromatic compounds from a hydroprocessed stream |
| WO2012135111A2 (en) * | 2011-03-31 | 2012-10-04 | Uop Llc | Aromatics recovery by extractive distillation |
| TW201330917A (en) * | 2011-11-17 | 2013-08-01 | Alstom Technology Ltd | Low pressure stripping in a gas purification process and systems thereof |
| JP2013202516A (en) * | 2012-03-28 | 2013-10-07 | Mitsubishi Chemical Engineering Corp | Adsorption tower and treatment method using adsorption tower |
| CN105521622A (en) * | 2014-09-30 | 2016-04-27 | 中国石油化工股份有限公司 | Simulated moving bed adsorption tower external pipeline leaching device and application thereof in adsorptive separation |
| CN105521623A (en) * | 2014-10-24 | 2016-04-27 | 中国石化扬子石油化工有限公司 | Adsorption tower bed pipe volume-reduction simulated moving bed adsorption separation device |
| KR20160046591A (en) * | 2014-10-21 | 2016-04-29 | 현대중공업 주식회사 | Multi section type-LNG Feed gas pre-processing apparatus |
| CN107029451A (en) * | 2016-12-09 | 2017-08-11 | 大连福佳·大化石油化工有限公司 | The leakage adsorbent online recycling device and its technique of adsorption tower bottom (head) |
| CN207123381U (en) * | 2017-04-25 | 2018-03-20 | 中国石油化工股份有限公司 | A kind of adsorption tower grid device for evaluating performance |
| CN107930343A (en) * | 2017-12-30 | 2018-04-20 | 大连福佳·大化石油化工有限公司 | Adsorption tower backwashing system and method |
| CN108102694A (en) * | 2018-01-02 | 2018-06-01 | 神华集团有限责任公司 | The reprocessing system and method for F- T synthesis diesel oil distillate |
| CN207996540U (en) * | 2017-12-30 | 2018-10-23 | 大连福佳·大化石油化工有限公司 | A kind of adsorption tower backwashing system |
| CN110804461A (en) * | 2019-12-18 | 2020-02-18 | 大连福佳·大化石油化工有限公司 | Bed leakage-proof system of adsorption tower |
| CN110835548A (en) * | 2019-12-20 | 2020-02-25 | 大连福佳·大化石油化工有限公司 | Arene adsorption system after transformation |
| CN210145793U (en) * | 2019-05-28 | 2020-03-17 | 山东汇丰石化集团有限公司 | Novel two-section solvent absorption maleic anhydride production device |
| CN210631903U (en) * | 2019-07-11 | 2020-05-29 | 南京赛虎工业设备有限公司 | Pressure swing adsorption air separation nitrogen making device |
| CN210765212U (en) * | 2019-09-23 | 2020-06-16 | 四川正洁科技有限责任公司 | Waste lubricating oil distillate oil refining and regenerating device |
| CN211311384U (en) * | 2019-12-18 | 2020-08-21 | 大连福佳·大化石油化工有限公司 | Bed leakage-proof system of adsorption tower |
| CN111603805A (en) * | 2020-06-01 | 2020-09-01 | 中国石油化工股份有限公司 | Back flushing method of simulated moving bed device for adsorption separation of dimethylbenzene |
| CN214634199U (en) * | 2020-12-28 | 2021-11-09 | 大连福佳·大化石油化工有限公司 | Improved stripping structure of adsorption tower for bed leakage agent |
-
2020
- 2020-12-28 CN CN202011574764.3A patent/CN112546675B/en active Active
Patent Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB353079A (en) * | 1929-05-02 | 1931-07-23 | Standard Oil Dev Co | Improvements in or relating to the absorption of gas and/or vapour in oil |
| GB682394A (en) * | 1948-09-25 | 1952-11-12 | Foster Wheeler Ltd | Improvements in and relating to methods of and apparatus for stripping volatile substances from fluids |
| JPH06182107A (en) * | 1992-12-24 | 1994-07-05 | Kubota Corp | Apparatus for adsorption and reaction |
| JPH07136445A (en) * | 1993-11-18 | 1995-05-30 | Sumitomo Heavy Ind Ltd | Desulfurization-denitration column |
| JPH10332659A (en) * | 1997-06-02 | 1998-12-18 | Uop Inc | Apparatus and process for adsorption and separation of pseudo moving bed |
| CN1205983A (en) * | 1997-07-22 | 1999-01-27 | 中国石油化工总公司 | Multisection stripping process for treating acid sewage from oil refinery |
| US20020090261A1 (en) * | 2000-11-16 | 2002-07-11 | Sansalone John J. | Adsorptive-filtration media for the capture of waterborne or airborne constituents |
| CN102220155A (en) * | 2010-04-15 | 2011-10-19 | 中国石油化工股份有限公司 | Method for utilizing aldehyde-contained water of furfural extraction solvent recovery system |
| US20120145594A1 (en) * | 2010-12-14 | 2012-06-14 | Uop Llc | Process for removing heavy polynuclear aromatic compounds from a hydroprocessed stream |
| WO2012135111A2 (en) * | 2011-03-31 | 2012-10-04 | Uop Llc | Aromatics recovery by extractive distillation |
| TW201330917A (en) * | 2011-11-17 | 2013-08-01 | Alstom Technology Ltd | Low pressure stripping in a gas purification process and systems thereof |
| JP2013202516A (en) * | 2012-03-28 | 2013-10-07 | Mitsubishi Chemical Engineering Corp | Adsorption tower and treatment method using adsorption tower |
| CN105521622A (en) * | 2014-09-30 | 2016-04-27 | 中国石油化工股份有限公司 | Simulated moving bed adsorption tower external pipeline leaching device and application thereof in adsorptive separation |
| KR20160046591A (en) * | 2014-10-21 | 2016-04-29 | 현대중공업 주식회사 | Multi section type-LNG Feed gas pre-processing apparatus |
| CN105521623A (en) * | 2014-10-24 | 2016-04-27 | 中国石化扬子石油化工有限公司 | Adsorption tower bed pipe volume-reduction simulated moving bed adsorption separation device |
| CN107029451A (en) * | 2016-12-09 | 2017-08-11 | 大连福佳·大化石油化工有限公司 | The leakage adsorbent online recycling device and its technique of adsorption tower bottom (head) |
| CN207123381U (en) * | 2017-04-25 | 2018-03-20 | 中国石油化工股份有限公司 | A kind of adsorption tower grid device for evaluating performance |
| CN107930343A (en) * | 2017-12-30 | 2018-04-20 | 大连福佳·大化石油化工有限公司 | Adsorption tower backwashing system and method |
| CN207996540U (en) * | 2017-12-30 | 2018-10-23 | 大连福佳·大化石油化工有限公司 | A kind of adsorption tower backwashing system |
| CN108102694A (en) * | 2018-01-02 | 2018-06-01 | 神华集团有限责任公司 | The reprocessing system and method for F- T synthesis diesel oil distillate |
| CN210145793U (en) * | 2019-05-28 | 2020-03-17 | 山东汇丰石化集团有限公司 | Novel two-section solvent absorption maleic anhydride production device |
| CN210631903U (en) * | 2019-07-11 | 2020-05-29 | 南京赛虎工业设备有限公司 | Pressure swing adsorption air separation nitrogen making device |
| CN210765212U (en) * | 2019-09-23 | 2020-06-16 | 四川正洁科技有限责任公司 | Waste lubricating oil distillate oil refining and regenerating device |
| CN110804461A (en) * | 2019-12-18 | 2020-02-18 | 大连福佳·大化石油化工有限公司 | Bed leakage-proof system of adsorption tower |
| CN211311384U (en) * | 2019-12-18 | 2020-08-21 | 大连福佳·大化石油化工有限公司 | Bed leakage-proof system of adsorption tower |
| CN110835548A (en) * | 2019-12-20 | 2020-02-25 | 大连福佳·大化石油化工有限公司 | Arene adsorption system after transformation |
| CN111603805A (en) * | 2020-06-01 | 2020-09-01 | 中国石油化工股份有限公司 | Back flushing method of simulated moving bed device for adsorption separation of dimethylbenzene |
| CN214634199U (en) * | 2020-12-28 | 2021-11-09 | 大连福佳·大化石油化工有限公司 | Improved stripping structure of adsorption tower for bed leakage agent |
Non-Patent Citations (1)
| Title |
|---|
| 才武英等: "对二甲苯装置开工技术分析", 《广东化工》, vol. 41, no. 21, pages 179 - 181 * |
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