Method and apparatus of processing aqueous solution by hydrate method
An aqueous solution and hydrate technology, which is applied in seawater treatment, water/sewage treatment, heating water/sewage treatment, etc., can solve the problems of mother liquor entrainment, and achieve the effects of improving efficiency, low energy consumption, and simple process flow
Inactive Publication Date: 2007-02-07
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology
[0010] The main purpose of the present invention is to provide a method for treating aqueous solution using hydrate technology, so that the hydrate-generated gas and the water vapor entrained out of the solution phase can generate hydrate, so as to solve the problem of hydrate crystal particles entraining mother liquor and improve the treatment efficiency. making the technology truly industrially applicable
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Embodiment 1
[0052] According to the above experimental procedure, the device of the present invention with a reactor volume of 500mL is used, and the carbon dioxide gas that is easy to generate hydrate is used for the experiment. The treatment object is brine of simulated seawater. The operation process is as described above. 97.0°C, the outlet pressure is 3MPa, the temperature of the aqueous solution (brine) is 4°C, the temperature of the cold liquid flowing in the shaft 3 of the runner is 3°C, and the pressure in the low-pressure zone of the reactor 1 is controlled at about 0.9MPa.
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The invention involves a method for water treatment by using a reactor containing a hydrate formation element in the upper. The reactor is divided into a low pressure part in the upper area and a high pressure part in the lower area. The method comprises placing the water to be dealt in the reactor, wherein the water has non-contact surface with the hydrate formation element, compressing hydrate generation gas to a temperature higher than the hydrate generation temperature and then introducing the gas into the reactor through the water solution to be dealt, bringing out steam and forming hydrate on the hydrate formation element, decomposing the hydrate in the low pressure part of the reactor and separating, collecting separated water, and discharging the concentrated solution treated from the bottom of the reactor. The invention also provides a device for the method. The method and device can be used for seawater desalination, medicine solution concentration, and juice or solution fermentation, solve problems of mother liquid carried in hydrate crystal particles, and improve efficiency.
Description
technical field [0001] The present invention relates to the treatment technology of aqueous solution, especially relates to a kind of using hydrate technology to process the aqueous solution, so that the hydrate-generated gas and the entrained water vapor form hydrate and then decompose the hydrate to obtain purified aquatic products or the aqueous solution The technical method and device for thickening belong to the technical field of chemical industry. Background technique [0002] In many fields related to chemical industry, we often encounter the treatment technology of aqueous solution, and there are many objects and purposes of treatment, such as removing excess water in the solution to concentrate the aqueous solution; implementing separation operations for some special aqueous solutions to Access to high-quality water, such as desalination of seawater and production of pure water. At present, the most common methods are still such as evaporation, filtration (includi...
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IPC IPC(8): C02F1/00C02F1/04C02F103/08
CPCY02A20/124
Inventor 陈光进庞维新陈立涛
Owner CHINA UNIV OF PETROLEUM (BEIJING)