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Oil slurry antisludging agent and preparation method thereof

A technology of antiscalant and oil slurry, which is applied in the petroleum industry, processing hydrocarbon oil, processing equipment corrosion/inhibiting dirt, etc., can solve the problems of product quality decline, secondary pollution, use impact, etc., and achieve low dosage and increased The effect of contact force and ease of use

Inactive Publication Date: 2018-11-23
宜兴市星光宝亿化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing antiscalants generally contain metal surface passivators, which are mainly metal salts. Antiscalants containing these components will affect some indicators of later products such as ash content, which will reduce the quality of products. , which will have a certain impact on subsequent use
Therefore, some enterprises have started to use oil-soluble antiscalants for antiscaling. They need to use diesel oil, kerosene, hydrocarbons, etc. as solvents. The dispersibility and fluidity are not good, which affects the effect of antiscaling. Moreover, the cost is high, and a large amount needs to be added. In order to achieve the corresponding antiscaling effect, the oil-soluble antiscalant is difficult and costly in post-processing, and it is easy to cause secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take 10% magnesium carbonate by weight, 25% calcium carbonate, 20% sodium sulfonate, 10% vanadium trioxide, 20% sodium hydroxide and 15% deionized water to form a mixed solution for use Take the volcanic rock and immerse in the mixed solution at room temperature for 10-20 minutes, the volume ratio of the volcanic rock to the mixed solution is 1:5; heat the solution, and then heat it at a constant temperature after the temperature rises to 70-80°C, and control the heating time for 2-4 hours. Then cool to room temperature; heat the solution a second time, heat it at a constant temperature after the temperature rises to 50-55°C, control the heating time for 6-8h, and then cool to room temperature; separate the obtained volcanic rock from the solution, let it stand to dry, Bake at 120~150°C for 5~6 hours, then cool to room temperature.

Embodiment 2

[0024] Take 15% magnesium carbonate, 20% calcium carbonate, 25% sodium sulfonate, 15% vanadium trioxide, 15% sodium hydroxide and 10% deionized water to form a mixed solution for later use ; soak cobblestone in the mixed solution at room temperature for 10-20min, the volume ratio of the cobblestone to the mixed solution is 2:5; heat the solution, and heat it at a constant temperature after the temperature rises to 70-80°C, and control the heating time 2~4h, then cool to room temperature; heat the solution a second time, heat at a constant temperature after the temperature rises to 50~55°C, control the heating time for 6~8h, and then cool to room temperature; separate the obtained pebbles from the solution, Let stand to dry, bake at 120~150°C for 5~6 hours, and cool to room temperature.

Embodiment 3

[0026] Get 20% magnesium carbonate by weight, 10% calcium carbonate, 15% sodium sulfonate, 20% vanadium trioxide, 10% sodium hydroxide and 25% deionized water to make a mixed solution for use Take the volcanic rock and immerse in the mixed solution at room temperature for 10-20 minutes, the volume ratio of the volcanic rock to the mixed solution is 1:5; heat the solution, and then heat it at a constant temperature after the temperature rises to 70-80°C, and control the heating time for 2-4 hours. Then cool to room temperature; heat the solution a second time, heat it at a constant temperature after the temperature rises to 50-55°C, control the heating time for 6-8h, and then cool to room temperature; separate the obtained volcanic rock from the solution, let it stand to dry, Bake at 120~150°C for 5~6 hours, then cool to room temperature.

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Abstract

The invention discloses an oil slurry antisludging agent, which comprises the following ingredients in parts by weight: 10-30% of magnesium carbonate, 10-25% of calcium carbonate, 10-25% of sodium sulfonate, 10-20% of vanadium trioxide, 10-20% of sodium hydroxide and 10-30% of deionized water. Meanwhile, the invention also discloses a preparation method for the oil slurry antisludging agent. The oil slurry antisludging agent has the advantages of convenience in use, low volume of addition and no corrosion function on devices. The product does not contain phosphorus, after the product is used,subsequent discharge sewage treatment can more conform to environment protection requirements, and a use device system is free from the damage of accumulation of hard scales including calcium phosphate and the like generated by phosphorus; since no metal salt is contained, no pollution is caused for environment during subsequent treatment.

Description

technical field [0001] The invention belongs to the field of petrochemical industry, and in particular relates to an oil slurry scale inhibitor and a preparation method thereof. Background technique [0002] In recent years, with the change of catalytic cracking raw oil and the deepening of processing technology, fouling and coking of catalytic cracking oil slurry system equipment have led to a decrease in the thermal efficiency of the oil slurry heat exchanger, affecting the normal production and long-term operation of the unit, and directly Affect the safe operation of the equipment, and in serious cases cause the device to be forced to stop production. Refining workers put forward a series of solutions to the fouling problem from different perspectives such as equipment, process, and operation, such as reducing the temperature at the bottom of the fractionation tower, reducing the residence time, increasing the flow rate of the oil slurry, and installing an oil slurry fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G75/04C10G75/02
CPCC10G75/02C10G75/04
Inventor 王召光王芸云王占新
Owner 宜兴市星光宝亿化工有限公司