A crude oil decalcifier

A crude oil decalcifier and decalcifier technology, which is applied in the petroleum industry, refined hydrocarbon oil, etc., can solve the problems of low calcium removal rate and equipment corrosion of decalcifier, and achieve good thermal stability, reduce corrosion, and prepare simple craftsmanship

Active Publication Date: 2017-08-18
金浦新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Purpose of the invention: The purpose of the present invention is to solve the problem of low calcium removal rate of the decalcifying agent in the refining process of the refinery and the strong corrosion of the equipment by the decalcifying agent, and to provide a method for treating the decalcification process of the refinery Decalcifying agent, the decalcifying agent can improve the removal rate of calcium ions in the refinery crude oil, and at the same time, it has obvious slow-release effect on the equipment of the refinery, and can effectively reduce the corrosion effect on the equipment in the process of using the decalcifying agent

Method used

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  • A crude oil decalcifier

Examples

Experimental program
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Effect test

Embodiment 1

[0019] First, dissolve 2% sodium lactate and 70% lactic acid in water, then add 5% ammonium sulfate, stir until completely dissolved, then add 0.5% water-soluble imidazoline amide, and finally slowly add 0.1% cationic polyacrylamide, stir until completely uniform Phase aqueous solution, that is, crude oil decalcifier.

Embodiment 2

[0021] First, dissolve 2% sodium lactate and 85% lactic acid in water, then add 5% ammonium sulfate, stir until completely dissolved, then add 0.5% water-soluble imidazoline amide, and finally slowly add 0.1% cationic polyacrylamide, stir until completely uniform Phase aqueous solution, that is, crude oil decalcifier.

Embodiment 3

[0023] First, dissolve 2% sodium lactate and 70% lactic acid in water, then add 10% ammonium sulfate, stir until completely dissolved, then add 0.5% water-soluble imidazoline amide, and finally slowly add 0.1% cationic polyacrylamide, stir until completely uniform Phase aqueous solution, that is, crude oil decalcifier.

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PUM

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Abstract

The invention discloses a crude oil decalcifying agent. The crude oil decalcifying agent is an aqueous solution which comprises, by mass, 70%-85% of lactic acid, 2% of sodium lactate, 5%-10% of ammonium sulfate, 0.5%-3% of water-soluble imidazoline amide and 0.1% of cationic polyacrylamide. According to the crude oil decalcifying agent, the preparation technology is simple, calcium ions in crude oil can be effectively removed, and when the calcium ions are removed, other metal ions are removed to some extent; sustained release effect of the water-soluble imidazoline amide can effectively reduce corrosion to refinery equipment in the using process, and the stability of the decalcifying agent is maintained.

Description

technical field [0001] The invention relates to the technical field of crude oil treatment, in particular to a crude oil decalcifying agent. Background technique [0002] In recent years, with the development of the petroleum industry, the degree of crude oil extraction has gradually deepened, and the acidification of domestic and foreign crude oil has become increasingly serious, and there is a certain correspondence between the metal content in crude oil and its acidity. The increase of the value increases, especially calcium, the calcium content of some crude oil is as high as 200mg / L or more. [0003] Crude oil decalcification has always been a key and difficult issue that must be paid attention to in the refining process of many refineries at home and abroad. It is closely related to the safe operation of desalination process, atmospheric and vacuum, catalytic cracking, hydrocracking and other processes in the refining process. , directly affect the quality of refined ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G29/20
Inventor 余志兵吴倩戴泽青葛圣才刘树龙
Owner 金浦新材料股份有限公司
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