WO2013159533A1 - 用于超临界水氧化系统脱盐排盐的控制方法 - Google Patents
用于超临界水氧化系统脱盐排盐的控制方法 Download PDFInfo
- Publication number
- WO2013159533A1 WO2013159533A1 PCT/CN2012/085888 CN2012085888W WO2013159533A1 WO 2013159533 A1 WO2013159533 A1 WO 2013159533A1 CN 2012085888 W CN2012085888 W CN 2012085888W WO 2013159533 A1 WO2013159533 A1 WO 2013159533A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- buffer
- oxidizer
- door
- salt
- hydrocyclone
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
- C02F11/08—Wet air oxidation
- C02F11/086—Wet air oxidation in the supercritical state
-
- 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
- B01D3/06—Flash distillation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/267—Separation of sediment aided by centrifugal force or centripetal force by using a cyclone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
- C02F1/385—Treatment of water, waste water, or sewage by centrifugal separation by centrifuging suspensions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
Definitions
- the invention relates to a supercritical water treatment technology for waste organic matter, in particular to a method for controlling desalination and salt discharge in a supercritical water treatment system for waste organic matter.
- Supercritical Water Oxidation (SCWO) technology is a technology that enables deep oxidation of a variety of organic wastes.
- organic matter can be mixed with air, 0 2 and other non-polar gases to form a homogeneous reaction system, which realizes efficient and rapid decomposition of organic matter, and produces small molecular products 13 ⁇ 40, CO ⁇ BN 2 .
- most of the salts have a high solubility in water at normal temperature and pressure, generally in the range of tens to 100 g/L, in critical water, the solubility of inorganic salts in water is significantly reduced, generally in (1 ⁇ 100) xlO. " 6 (mass fraction). Therefore, it is generally easy to precipitate inorganic salts from supercritical water.
- SCWO treatment plant for related organic wastes, equipment and pipeline blockage caused by precipitation of inorganic salts are one of the biggest obstacles affecting the industrialization of SCWO treatment technology.
- SCWO process industrial application system establishing a desalination system that can achieve continuous and stable operation is of great significance for maintaining the safe operation of the entire SCWO treatment system.
- the existing SCWO method for treating organic waste desalination system can be divided into desalting before reaction and desalting after reaction according to the time of salt discharge.
- the system flow can be divided into continuous desalting and intermittent desalination.
- the operating conditions can be divided into high pressure direct Drain the salt and drain the salt after depressurization. Achieving continuous and stable desalination and adopting an effective step-down method are key issues to be solved.
- the present invention provides a method for controlling desalting and salt discharge of a machine waste SCWO treatment system.
- the heating furnace outlet pipe is connected to the hydrocyclone inlet.
- the overflow port at the upper end of the hydrocyclone is connected to the pipeline returning to the heating furnace.
- the lower part of the hydrocyclone is a salt storage buffer tank and is connected with its own conveying motor.
- the buffer tank outlet is connected to the buffer oxidizer through the first door, the buffer oxidizer is provided with the transport motor, and the other inlet of the buffer oxidizer is connected to the oxygen supply pipe through the sixth door, and a filter is arranged in the buffer oxidizer.
- the filter outlet pipe is connected to the hydrocyclone overflow pipe through the second door, the lower outlet of the buffer oxidizer is connected to a expansion vessel through the third door, and the upper outlet of the expansion vessel is connected to the storage tank through the fourth door.
- the lower outlet of the expansion vessel is connected to the salt storage tank through the fifth door;
- the organic wastewater enters the inlet of the hydrocyclone, slowly opens the sixth door to a certain degree of opening, oxygenates the buffer oxidizer, causes the pressure in the buffer oxidizer to reach a certain value, and then closes the sixth Tip; slowly open the second door to make the hydrocyclone equal to the buffer oxidizer pressure;
- the third door and the fourth door are opened, and the conveying motor of the buffer oxidizer is turned on.
- the salt is spirally conveyed to the expansion container, and the vapor generated by the vaporization enters the storage tank, and the dried salt enters the storage through the fifth door.
- Salt pond
- a cutoff ⁇ is further provided between the sixth door and the buffer oxidizer connection.
- the desalination and salt discharge method of the invention can realize the high efficiency of the organic waste supercritical water oxidation treatment system through the salt storage function of the salt buffer tank and the buffer oxidation oxidizer provided by the hydrocyclone and the switching control sequence between the trick and the door. , continuous desalination.
- FIG. 1 is a schematic view showing the control method of the organic waste SCWO desalination and salt discharge system in the embodiment of the present invention.
- SCWO processes the desalination system of organic waste, including: the heating furnace 1 leads the pipeline to the inlet of the hydrocyclone 2, and the overflow port of the upper end of the hydrocyclone 2 is connected to the pipeline returning to the heating furnace 1, the hydrocyclone 2
- the lower part is a salt storage buffer tank and is connected with the self-contained screw conveying motor 8, the lower outlet of the hydrocyclone is connected to the top inlet of a buffer oxidizer 3, the buffer oxidizer 3 is connected to the spiral conveying motor 9, and the other inlet of the buffer oxidizer 3
- the buffer oxidizer is provided with a filter 7, the outlet pipe of the filter 7 is connected with the overflow pipe of the hydrocyclone 2, the lower outlet of the buffer oxidizer 3 is connected with a expansion vessel 4, and the upper outlet of the expansion vessel 4
- the storage tank 6 is connected, and the lower outlet of the expansion vessel 4 is connected to the salt storage tank 5.
- a control ⁇ VI is arranged between the bottom outlet of the hydrocyclone and the buffer oxidizer inlet; a control ⁇ V2 is arranged on the pipeline connecting the filter outlet to the heating furnace; and a control is arranged between the buffer oxidizer outlet and the expansion vessel inlet V3; a control ⁇ V4 is arranged between the upper outlet of the expansion vessel and the storage tank; a control ⁇ V5 is arranged between the lower outlet of the expansion vessel and the storage salt pool; a pressure gauge PIC01 is arranged on the buffer oxidizer; and a pressure gauge PI02 is arranged on the expansion vessel .
- the desalination control consists of two parts: hydrocyclone 2 rows of salt to buffer oxidizer 3; buffer oxidizer 3 drains the salt to the expansion vessel 4 .
- Desalination operation 1 (1) During the system startup process, after the feed is switched from clean water to organic wastewater, open the door V7 on the oxygen supply pipe, slowly open the door V6 to a certain opening degree, and oxygenate the buffer oxidizer 3, so that The buffer oxidizer pressure reaches 4 ⁇ 5MPa, then close the door V6 and the door V7;
- the screw conveying motor 8 on the hydrocyclone 2 is closed, the tricks VI, V2 in the upper part of the buffer oxidizer 3 are closed, the trick V3 in the lower part of the buffer oxidizer 3 is turned on, and the spiral transport motor 9 on the buffer oxidizer 3 is activated ( In the forward rotation), the salt is sent to the expansion vessel 4 (the outlet gate V4 is first opened), the vapor generated by the vaporization enters the storage tank 6, and the dried salt is discharged through the salt storage tank 5 for landfill treatment.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/396,740 US20150299015A1 (en) | 2012-04-23 | 2012-12-05 | Method for controlling desalination and salt discharging in supercritical water oxidation system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210120218.1 | 2012-04-23 | ||
CN2012101202181A CN102633351B (zh) | 2012-04-23 | 2012-04-23 | 用于超临界水氧化系统脱盐排盐的控制方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013159533A1 true WO2013159533A1 (zh) | 2013-10-31 |
Family
ID=46617954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2012/085888 WO2013159533A1 (zh) | 2012-04-23 | 2012-12-05 | 用于超临界水氧化系统脱盐排盐的控制方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20150299015A1 (zh) |
CN (1) | CN102633351B (zh) |
WO (1) | WO2013159533A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114772698A (zh) * | 2022-03-31 | 2022-07-22 | 深圳市华尔信环保科技有限公司 | 一种有机废液超临界水氧化系统 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102633351B (zh) * | 2012-04-23 | 2013-07-10 | 西安交通大学 | 用于超临界水氧化系统脱盐排盐的控制方法 |
CN106219725B (zh) * | 2016-09-06 | 2019-06-21 | 广州中国科学院先进技术研究所 | 一种超临界水氧化反应器 |
US10519043B2 (en) * | 2017-06-01 | 2019-12-31 | Xi'an Jiaotong University | Control system for decreasing pressure of supercritical water system and method thereof |
CN110015747A (zh) * | 2019-05-24 | 2019-07-16 | 山东豪迈化工技术有限公司 | 超临界水氧化装置及废水处理方法 |
CN112121452A (zh) * | 2020-09-27 | 2020-12-25 | 江苏科技大学 | 深海天然气开采中含高溶解度盐的乙二醇贫液的脱盐系统及其脱盐方法 |
CN113666392B (zh) * | 2021-08-31 | 2023-06-06 | 中盐工程技术研究院有限公司 | 逆流洗盐器排盐系统及逆洗排盐控制方法 |
CN114804269B (zh) * | 2022-04-29 | 2023-03-28 | 西安交通大学 | 一种有机废物超临界水处理装备的在线脱排盐系统及方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101580320A (zh) * | 2009-06-05 | 2009-11-18 | 西安交通大学 | 废有机物的超临界水处理系统的操作方法 |
CN101690935A (zh) * | 2009-10-13 | 2010-04-07 | 西安交通大学 | 废有机物超临界水处理反应系统的控制方法 |
US20110108491A1 (en) * | 2009-11-10 | 2011-05-12 | Palo Alto Research Center Incorporated | Desalination using supercritical water and spiral separation |
CN102633351A (zh) * | 2012-04-23 | 2012-08-15 | 西安交通大学 | 用于超临界水氧化系统脱盐排盐的控制方法 |
Family Cites Families (4)
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US4543190A (en) * | 1980-05-08 | 1985-09-24 | Modar, Inc. | Processing methods for the oxidation of organics in supercritical water |
EP0612697B1 (de) * | 1993-02-24 | 1998-01-21 | Sulzer Chemtech AG | Reinigung von salzbeladenem Abwasser durch Nassoxidation bei superkritischen Bedingungen |
CN1186273C (zh) * | 2000-12-30 | 2005-01-26 | 深圳市宝利达实业有限公司 | 超临界水氧化法流动式污水处理的方法及装置 |
CN101607772B (zh) * | 2009-05-05 | 2011-06-01 | 西安交通大学 | 废有机物的超临界水处理与资源化利用系统 |
-
2012
- 2012-04-23 CN CN2012101202181A patent/CN102633351B/zh not_active Expired - Fee Related
- 2012-12-05 US US14/396,740 patent/US20150299015A1/en not_active Abandoned
- 2012-12-05 WO PCT/CN2012/085888 patent/WO2013159533A1/zh active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101580320A (zh) * | 2009-06-05 | 2009-11-18 | 西安交通大学 | 废有机物的超临界水处理系统的操作方法 |
CN101690935A (zh) * | 2009-10-13 | 2010-04-07 | 西安交通大学 | 废有机物超临界水处理反应系统的控制方法 |
US20110108491A1 (en) * | 2009-11-10 | 2011-05-12 | Palo Alto Research Center Incorporated | Desalination using supercritical water and spiral separation |
CN102633351A (zh) * | 2012-04-23 | 2012-08-15 | 西安交通大学 | 用于超临界水氧化系统脱盐排盐的控制方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114772698A (zh) * | 2022-03-31 | 2022-07-22 | 深圳市华尔信环保科技有限公司 | 一种有机废液超临界水氧化系统 |
CN114772698B (zh) * | 2022-03-31 | 2024-01-05 | 深圳市华尔信环保科技有限公司 | 一种有机废液超临界水氧化系统 |
Also Published As
Publication number | Publication date |
---|---|
CN102633351A (zh) | 2012-08-15 |
US20150299015A1 (en) | 2015-10-22 |
CN102633351B (zh) | 2013-07-10 |
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