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Method for applying desalinated seawater to circulating cooling water system

A technology of circulating cooling water and 12 water, which is applied in the directions of oxidized water/sewage treatment, light water/sewage treatment, neutralized water/sewage treatment, etc. It can solve the problem of corrosion of circulating water equipment and achieve the effect of reducing corrosion.

Active Publication Date: 2013-09-25
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcoming that the current desalinated seawater is easy to cause corrosion to circulating water equipment when used as circulating cooling water, and to provide a method for applying desalinated seawater in a circulating cooling water system with little corrosion to circulating water equipment

Method used

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  • Method for applying desalinated seawater to circulating cooling water system
  • Method for applying desalinated seawater to circulating cooling water system
  • Method for applying desalinated seawater to circulating cooling water system

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Embodiment 16

[0052] In order to simulate the scene, a dynamic simulation test was carried out. The dynamic simulation test method is carried out according to the chemical industry standard HG / T2160-2008 of the People's Republic of China, and the control parameters are as follows.

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Abstract

The invention discloses a method for applying desalinated seawater to a circulating cooling water system. The method includes: taking the desalinated seawater as make-up water and applying it in the circulating cooling water system, and adding a corrosion inhibitor and a pH regulator to keep the pH value of the circulating cooling water at 9-12. Specifically, the corrosion inhibitor contains a first inhibitor and a second inhibitor. The first inhibitor is one or more of vanadate, tungstate and molybdate, and the second inhibitor is one or more of gluconate, borate, silicate, lignosulfonate and tannin. The method has the characteristics of small corrosion on circulating cooling water equipment and environmental-friendliness.

Description

technical field [0001] The invention relates to a method for applying desalinated sea water in a circulating cooling water system. Background technique [0002] With the development of the world economy, fresh water resources are increasingly scarce, and the utilization of desalinated water has been paid more and more attention by coastal countries. According to statistics from the International Desalination Association, the capacity of seawater desalination contracts in the past five years has exceeded 2×10 7 m 3 / d, which is close to the sum of the past 30 years, and is expected to double on this basis in the next 10 years. At present, a large amount of water is needed in industrial production, of which circulating cooling water accounts for a large proportion. For example, circulating cooling water in petrochemical enterprises accounts for more than 80% of production water. Reuse of desalinated water for industrial circulating cooling water will greatly reduce the cons...

Claims

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Application Information

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IPC IPC(8): C02F1/66C02F1/68C02F1/32C02F1/72C02F1/78
Inventor 杨玉郦和生胡艳华
Owner CHINA PETROLEUM & CHEM CORP
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