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A seawater desalination method based on natural gas hydrate technology

A hydrate and natural gas technology, applied in chemical instruments and methods, degassed water/sewage treatment, seawater treatment, etc., can solve problems such as high energy consumption, high cost, and serious scaling

Inactive Publication Date: 2016-01-06
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional technical methods have disadvantages such as high energy consumption, high cost and serious fouling, so it is necessary to develop more economical and environmentally friendly methods

Method used

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  • A seawater desalination method based on natural gas hydrate technology
  • A seawater desalination method based on natural gas hydrate technology

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing and embodiment mode, the patent of the present invention is described in further detail:

[0013] After the seawater is pressurized by the water pump (1), part of it flows into the hydrate decomposition device (2) through the pipeline. Since the seawater temperature is relatively high, the heat can be transferred to the hydrate decomposition device (2) through the heat exchange device, so that the hydrate in it can be decomposed. , the other part of seawater is cooled by heat exchanger Ⅰ (5) and joins with the seawater flowing out of decomposition device (2), and then enters the hydrate generation device (3) through the main pipeline, and at the same time, a small part of seawater flows into the ice hydrate through the auxiliary pipeline. The grains are provided in the box (4). The throttling filtering device (7), the condensing device (8), and the refrigeration compressor (9) are connected in sequence to form a refrigerati...

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Abstract

The invention relates to a seawater desalination method and an apparatus based on a natural gas hydrate technology. A modular design idea is employed, and all modules are mutually independent. The main modules comprise a seawater flow module, a hydrate generation and decomposition module, a refrigeration cycling module and a natural gas cycling module. The patent aims at mainly providing an effective method for solving the seawater desalination problem under the condition of low cost, and in the patent, salt-containing seawater is purified and desalinated based on the natural gas hydrate technology. The technical scheme comprises the following advantages that the equipment is simple, compact and low in cost, and the energy utilization efficiency is high.

Description

technical field [0001] The invention relates to a seawater desalination method and device based on natural gas hydrate technology, which can desalinize seawater while forming and decomposing hydrates. It belongs to the field of low-consumption seawater desalination. Background technique [0002] With the increasing demand for fresh water in all countries in the world, there are deep water-scarce areas in Africa and other countries, and most of the earth's surface is covered with oceans. Seawater is too salty to be used by most land creatures. Water is The source of life, without water, life would be impossible. [0003] In recent years, countless scholars have been continuously researching seawater desalination technology. At present, the main seawater desalination methods in the world include thermal method, membrane method, ion exchange method, hydrate method, solvent extraction method, electrodeionization method (EDI) and freezing method. law etc. Among them, the therm...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08C02F1/20
CPCC02F9/00C02F2103/08C02F2301/08
Inventor 冯明如马贵阳刘俊杰黄珊潘振张宇彤
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY