Preparation method of high-solid content heavy-oil cleaning agent

Abstract

The invention discloses a preparation method of a high-solid content heavy-oil cleaning agent. The preparation method comprises the following steps: preparing an alcohol amine ether additive, namely mixing alcohol amine and alcohol in a ratio, wherein the molar ratio of the alcohol amine and alcohol is (1:1) to (1:1.5), then heating to reflux temperature after adding an alkali catalyst, reacting for 5 to 12 hours, and filtering by using a 300-mesh sieve to obtain the alcohol amine ether additive; preparing a cleaning agent, namely taking 5 to 30 parts of alcohol amine ether to be added into a stirring tank, stirring and heating to 50 DEG C, then adding 1 to 5 parts of organic carboxylic acid, adding 0.5 to 5 parts of chelating agents and 0.1 to 1 part of a sterilizing preservative after the organic carboxylic acid is dissolved, adding 5 to 10 parts of alkyl glycoside mixtures after the chelating agents and the sterilizing preservative are dissolved and dispersed, stirring for 10 minutes, then adding 5 to 10 parts of fatty alcohol polyoxyethylene ether sulfate, adding 10 to 30 parts of nonionic surfactant mixtures after the fatty alcohol polyoxyethylene ether sulfate is dispersed, and finally adding 0.5 to 5 parts of dispersion stabilizers. According to the invention, the water content of the cleaning agent is reduced, and the transportation cost of a product is lowered.

Description

technical field [0001] The invention relates to a cleaning agent, in particular to a preparation method of a cleaning agent for heavy oil stains with high solid content. Background technique [0002] After a period of operation of oil refining units and oil pipelines in petrochemical enterprises, a large amount of sludge, residual oil, Dirt such as catalyst dust, sulfur compounds and their mixtures. Traditional cleaning methods mainly include artificial high-pressure water jet cleaning and mechanical cleaning. However, these cleaning methods have disadvantages such as time-consuming, high power consumption, incomplete cleaning, and even equipment damage. Therefore, chemical cleaning technology is gradually replacing these traditional cleaning methods. [0003] However, there are still some problems in heavy oil cleaning for petrochemical enterprises. The main manifestations are as follows: First, for a single device or light crude oil system, chemical cleaning technology...

AI Technical Summary

Problems solved by technology

For example, the patent application number: 200610013444.4 uses a highly toxic additive such as sodium nitrite, and the water content of the product is relatively high; another example is the patent application number: 201210353201.0, which uses a large amount of solvent oil, and the production cost is high , flammable