WO2013159535A1 - Dispositif de relargage et de dessalement supercritique pour le traitement d'eaux usées contenant du sel - Google Patents

Dispositif de relargage et de dessalement supercritique pour le traitement d'eaux usées contenant du sel Download PDF

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Publication number
WO2013159535A1
WO2013159535A1 PCT/CN2012/085893 CN2012085893W WO2013159535A1 WO 2013159535 A1 WO2013159535 A1 WO 2013159535A1 CN 2012085893 W CN2012085893 W CN 2012085893W WO 2013159535 A1 WO2013159535 A1 WO 2013159535A1
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WO
WIPO (PCT)
Prior art keywords
salt
supercritical
cylinder
straight cylinder
salting
Prior art date
Application number
PCT/CN2012/085893
Other languages
English (en)
Chinese (zh)
Inventor
王树众
唐兴颖
徐东海
张洁
公彦猛
王玉珍
Original Assignee
西安交通大学
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 西安交通大学 filed Critical 西安交通大学
Publication of WO2013159535A1 publication Critical patent/WO2013159535A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/008—Processes carried out under supercritical conditions
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids

Definitions

  • the invention relates to a salt-containing wastewater desalination device, in particular to a supercritical salt-salting desalination treatment for salty wastewater treatment.
  • the organic supercritical water treatment technology consists of three technologies: supercritical water oxidation technology, supercritical water partial oxidation technology and supercritical water gasification technology.
  • Supercritical Water Oxidation is mainly used for the treatment of organic waste. It has a fast reaction speed, thorough treatment, no secondary pollution and meets the requirements of full closure. Because supercritical water has special properties, such as: weak hydrogen bonds, similar to the dielectric constant of non-polar organic solvents, high diffusion coefficient, low viscosity, etc., enabling it to interact with non-polar molecules (such as air, oxygen and) Miscible at any ratio, the phase interface disappears, thereby eliminating mass transfer resistance, causing the organic matter and oxygen to rapidly decompose in the supercritical water to decompose.
  • SWPO Supercritical Water Partial Oxidation
  • Supercritical Water Gasification is a process in which organic matter is decomposed and gasified in a supercritical water environment without oxidant, and a hydrogen-based flammable gas is produced. This process not only has a fast reaction rate, but also recovers the heat of the system and produces a high-pressure gas that is easy to transport.
  • an object of the present invention is to provide a supercritical salt-salting desalter for treating a salty wastewater.
  • a supercritical salt-salting desalter for treating salty wastewater comprising a straight cylinder, an end cover disposed at an upper end of the straight cylinder, and a conical head disposed at a lower end of the straight cylinder, wherein the tubular wall of the straight cylinder
  • the inner and outer layers form an annular cavity on the inner side of the outer cylinder wall and the outer side of the inner cylinder wall, the inner side of the inner cylinder wall constitutes an inner cavity, and the desalted fluid outlet is connected to the inner cavity on the end cover;
  • the salt-containing fluid is disposed on the outer upper part of the outer cylinder wall
  • the inlet is connected to the annular cavity, a rotating filter cylinder is arranged at the lower end of the inner cylinder wall, a scraper is arranged outside the rotary filter cylinder, a solid salt outlet is arranged at the bottom of the conical head, and a bracket is arranged at the upper part of the straight cylinder to pass one through the
  • the end cover is provided with a pressure gauge and a safety port.
  • a backwash inlet communication lumen may also be provided on the end cap.
  • a dynamic seal is arranged between the rotary filter cartridge and the axial direction of the inner cylinder wall.
  • a portion of the upper end of the rotating shaft that protrudes from the end cover and the speed reducer is provided with a cooling water jacket.
  • the rotary filter cylinder is made of a high temperature corrosion resistant metal to form a wedge structure.
  • the advantage of the salt-removing device of the present invention is that it is disposed between the subcritical region and the supercritical region of the supercritical water treatment system, and the inorganic salt has high solubility in the subcritical region and is almost insoluble in the supercritical region. , the inorganic salt is precipitated and removed in the supercritical region.
  • the rotating filter cartridge is matched with the scraper to filter and remove the precipitated inorganic salt, which can effectively prevent the inorganic salt from being in the system. Deposition and corrosion of subsequent systems.
  • FIG. 1 is a schematic view showing the structure of a supercritical salt-salting desalter for treating a salty wastewater according to the present invention.
  • a supercritical salt-salting desalter for treating salty wastewater mainly comprises three parts: an end cap, a cylinder body and a conical head.
  • the conical head is arranged at the lower end of the straight cylinder, and the end cap is arranged at the upper end of the straight cylinder.
  • the wall of the tube is divided into two layers inside and outside.
  • the outer tube wall and the inner tube wall 13 form an annular cavity, and the inner tube wall constitutes an inner cavity.
  • the heated subcritical fluid conducts a flow and separates the fluid before and after desalting. Cooling water jacket at the upper end of the end cap
  • the lower end of the cooling water jacket 3 is provided with a speed reducer 2 and an electric motor 1, and a rotating shaft 12 is disposed through the entire shaft of the desalter.
  • the upper end cover is provided with a pressure gauge interface 10 and a safety port 11 and a desalting fluid outlet 16 and a backwashing inlet 5 a positioning bracket 6 is disposed at an upper end of the rotating shaft at the upper portion of the straight cylinder, a salt-containing fluid inlet 7 is disposed at an upper sidewall of the straight cylinder, and a rotating filter cylinder 15 is disposed at a lower end of the inner cylinder wall 13.
  • the rotating filter cylinder is connected to the lower end of the rotating shaft, and the inner cylinder wall
  • a dynamic seal 14 is provided between the axial direction of the rotary filter cartridge 15 and the rotary filter cartridge 15 to ensure that the rotary filter cartridge does not leak between the inner cylinder wall and the rotary filter cartridge during rotation.
  • a scraper 8 is disposed between the inside of the outer cylinder wall and the rotary filter cylinder 15, and the scraper is fixed to the outside of the rotary filter cylinder and is close to the inner side of the outer cylinder wall.
  • a solid salt outlet 9 is placed at the bottom of the conical head.
  • the salt desalter is a desalination device of a supercritical water treatment system, located between the subcritical to supercritical state of the supercritical water treatment system, avoiding the deposition of inorganic salts in the system and the corrosion of subsequent systems.
  • the heating device (such as furnace heating or electric heating) disposed outside the outer cylinder wall during heating is heated and heated, and when flowing to the rotary filter cylinder 15, the salt-containing fluid reaches a supercritical state, and solid salt is precipitated.
  • the rotating filter cartridge 15 is trapped outside the rotating filter cartridge (the lower portion of the annular cavity), and the clean fluid passes through the rotating filter cartridge 15, and the inner cavity formed along the inner cylinder wall passes through from the bottom to the top, and the desalting fluid from the upper end cap
  • the outlet 12 flows out.
  • the motor drives the speed reducer, and the rotary filter cylinder 15 is rotated by the rotating shaft.
  • the pressure gauge connected to the top of the pressure gauge interface is used to monitor the internal pressure of the desalter and set a safety raft for safe control of the desalter.
  • the rotary filter cartridge 15 is formed of a high-temperature corrosion-resistant metal in a wedge-shaped structure.
  • the cooling water jacket 3 is provided on the portion of the shaft extending from the end cover to the speed reducer to ensure that the motor does not stop due to overheating.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

L'invention concerne un dispositif de relargage et de dessalement supercritique pour le traitement d'eaux usées contenant du sel, qui comprend un corps cylindrique rectiligne, un couvercle d'extrémité disposé au niveau d'une partie d'extrémité supérieure du corps cylindrique rectiligne, et une tête conique disposée au niveau d'une partie d'extrémité inférieure du corps cylindrique rectiligne. La paroi du cylindre du corps cylindrique rectiligne est divisée en couches intérieure et extérieure, un espace annulaire étant défini par un côté intérieur de la paroi cylindrique extérieure et un côté extérieur de la paroi intérieure du cylindre, et une cavité étant définie par un côté intérieur de la paroi intérieure du cylindre. Le couvercle d'extrémité est équipé d'une sortie de fluide contenant du sel en communication avec la cavité. Une partie supérieure d'un côté extérieur de la paroi cylindrique extérieure est dotée d'une entrée de fluide contenant du sel en communication avec l'espace annulaire. Une extrémité inférieure de la paroi intérieure du cylindre est pourvue d'une cartouche filtrante rotative. Un racleur est disposé sur le côté extérieur de la cartouche filtrante rotative. Le fond de la tête d'électrolyse est pourvu d'une sortie de sel solide. Un support est disposé au niveau d'une partie supérieure à l'intérieur du corps cylindrique rectiligne, pour fixer un arbre rotatif s'étendant à travers l'axe du corps cylindrique rectiligne. Une extrémité inférieure de l'arbre rotatif est reliée à la cartouche filtrante rotative. Une partie, s'étendant hors du couvercle d'extrémité, d'une extrémité supérieure de l'arbre rotatif est reliée à un engrenage de réduction par un joint d'étanchéité magnétique.
PCT/CN2012/085893 2012-04-23 2012-12-05 Dispositif de relargage et de dessalement supercritique pour le traitement d'eaux usées contenant du sel WO2013159535A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210120138.6 2012-04-23
CN2012101201386A CN102659232A (zh) 2012-04-23 2012-04-23 含盐废水处理用超临界析盐脱盐器

Publications (1)

Publication Number Publication Date
WO2013159535A1 true WO2013159535A1 (fr) 2013-10-31

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Application Number Title Priority Date Filing Date
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CN (1) CN102659232A (fr)
WO (1) WO2013159535A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021123695A1 (fr) * 2019-12-19 2021-06-24 Syctom L'agence Metropolitaine Des Dechets Menagers Réacteur échangeur thermique

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102659232A (zh) * 2012-04-23 2012-09-12 西安交通大学 含盐废水处理用超临界析盐脱盐器
CN103030206B (zh) * 2012-12-20 2014-05-07 新奥科技发展有限公司 一种超临界水处理装置及方法
CN103508589B (zh) * 2013-09-30 2015-05-27 西安交通大学 超临界水氧化或气化处理高含盐有机废水的反应器
CN105819561B (zh) * 2016-03-30 2018-07-13 中国科学院上海应用物理研究所 一种耐腐蚀防堵塞的超临界水氧化反应装置
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
FR3060416B1 (fr) * 2016-12-16 2019-05-31 Commissariat A L'energie Atomique Et Aux Energies Alternatives Reacteur pour le traitement par oxydation hydrothermale d'une matiere organique dans un milieu reactionnel
CN107879529B (zh) * 2017-10-27 2020-08-18 西安理工大学 一种带脱盐功能的超临界水反应装置
CN112979040B (zh) * 2021-02-26 2022-09-02 生态环境部南京环境科学研究所 一种有机氯农药污染土壤催化氧化修复用废水处理设备

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CN2214288Y (zh) * 1994-08-13 1995-12-06 化学工业部上海化工研究院 筒锥式连续过滤压滤机
CN101987750A (zh) * 2010-10-22 2011-03-23 西安交通大学 废有机物的超临界水处理用预脱盐器
US20110108491A1 (en) * 2009-11-10 2011-05-12 Palo Alto Research Center Incorporated Desalination using supercritical water and spiral separation
CN102659232A (zh) * 2012-04-23 2012-09-12 西安交通大学 含盐废水处理用超临界析盐脱盐器

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CN101570357B (zh) * 2009-05-05 2011-09-21 西安交通大学 废有机物的超临界水处理用脱盐除渣装置
CN101560014B (zh) * 2009-05-05 2011-02-09 西安交通大学 废有机物的超临界水处理反应器的分区方法
CN101560033A (zh) * 2009-05-05 2009-10-21 西安交通大学 废有机物的超临界水处理用反应器

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CN2214288Y (zh) * 1994-08-13 1995-12-06 化学工业部上海化工研究院 筒锥式连续过滤压滤机
US20110108491A1 (en) * 2009-11-10 2011-05-12 Palo Alto Research Center Incorporated Desalination using supercritical water and spiral separation
CN101987750A (zh) * 2010-10-22 2011-03-23 西安交通大学 废有机物的超临界水处理用预脱盐器
CN102659232A (zh) * 2012-04-23 2012-09-12 西安交通大学 含盐废水处理用超临界析盐脱盐器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021123695A1 (fr) * 2019-12-19 2021-06-24 Syctom L'agence Metropolitaine Des Dechets Menagers Réacteur échangeur thermique
FR3105204A1 (fr) * 2019-12-19 2021-06-25 Syctom L'agence Metropolitaine Des Dechets Menagers Réacteur échangeur thermique

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