Ferrous sulfide passivator and preparation method thereof

A technology of ferrous sulfide and passivating agent, which is applied in the fields of treatment equipment corrosion/scaling inhibition, petroleum industry, hydrocarbon oil treatment, etc. It can solve the problems of large losses of manufacturers and threats to device safety maintenance, etc., and achieves low cost and fast response speed Effect

Inactive Publication Date: 2015-08-19
JINAN RUIDONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the increase in the amount of crude oil processed by refining and chemical enterprises and the increase in sulfur content, and the long-term, full-load operation of the device, the ferrous sulfide deposited inside the equipment is continuously increasing, which will bring great harm to the safety of the device during maintenance. big threat
Due to the self-combustion of ferrous sulfide, the accidents of damaging the equipment and the internal packing of the equipment have occurred in various manufacturers, which has brought huge losses to the manufacturers.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0020] In order to understand the technical solution of the present invention more clearly, the present invention will be further described below in conjunction with specific examples.

[0021] A ferrous sulfide passivator of the present invention is made of the following components, the mass ratio of each component is Span 40-35%, citric acid 0.5%, sodium dodecylbenzene sulfonate 20%, HEDTA (Hydroxyethylethylenediaminetriacetic acid) 1%, secondary deionized water 43.5%.

[0022] A kind of preparation method of ferrous sulfide passivator, described preparation method adopts following steps:

[0023] A According to the mass percentage of Span 40 35%, citric acid 0.5%, sodium dodecylbenzenesulfonate 20%, HEDTA (hydroxyethylethylenediaminetriacetic acid) 1%, secondary deionized water 43.5% ratio Take raw materials, check the mixer, and add secondary deionized water;

[0024] B. Slowly add the measured citric acid into the mixer, start the mixer, and record the mixing ti...

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Abstract

The invention discloses a ferrous sulfide passivator, which is prepared from the following components in percentage by mass: 30%-40% of span 40, 0.4%-0.6% of citric acid, 15%-25% of sodium dodecyl benzene sulfonate, 1%-2% of HEDTA (hydroxyethyl ethylenediamine triacetic acid) and 40%-50% of secondary deionized water. The ferrous sulfide passivator is efficient, nontoxic, and free of corrosion on equipment; and the preparation method of the ferrous sulfide passivator is simple.

Description

technical field [0001] The invention relates to the technical field of passivating agents, in particular to a ferrous sulfide passivating agent and a preparation method thereof. Background technique [0002] With the increase in the amount of crude oil processed by refining and chemical enterprises and the increase in sulfur content, and the long-term, full-load operation of the device, the ferrous sulfide deposited inside the equipment is continuously increasing, which will bring great harm to the safety of the device during maintenance. big threat. Accidents of ferrous sulfide self-combustion damaging equipment and internal packing of equipment have occurred in various manufacturers, which has caused huge losses to the manufacturers. Contents of the invention [0003] In order to overcome above-mentioned deficiencies in the prior art, the invention provides a kind of ferrous sulfide passivator and preparation method thereof, this ferrous sulfide passivator is effici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G75/00
Inventor 陈纪良
Owner JINAN RUIDONG IND
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