Cleaning agent for organic sediments inside oil tank and preparation method of cleaning agent

Abstract

The invention relates to a cleaning agent for organic sediments inside an oil tank and a preparation method of the cleaning agent. The cleaning agent comprises the following components in percentage by mass: 30%-60% of tetramethoxy-propane, 20%-40% of dimethoxy-ethane, 5%-15% of diethylene glycol octyl ether, 2%-10% of sodium polyphosphate, 1%-1.5% of sodium alkyl benzene sulfonate and 2%-3.5% of lauryl sodium sulfate. The cleaning agent disclosed by the invention can be cleaned on line and also be cleaned off line, generates no influence on production because of no need of shutdown when used for cleaning on line, so that cost and time are saved; the cleaning agent is harmless to an operator because an operator unnecessarily enters the oil tank, is pollution-free on the environment, can be used for recovering 90% hydrocarbon by recycling sludge and has the advantages of outstanding economic benefit, simple preparation method, short cleaning operation time, high cleaning quality, ecological and environmental friendliness, no three wastes discharge, no need of anti-rust treatment on a container after cleaning, good social benefit and economic benefit, harmlessness on human bodies, no corrosion on equipment and no secondary pollution.

Description

technical field [0001] The invention relates to a cleaning agent, in particular to a high-efficiency and environment-friendly cleaning agent with high efficiency, no pollution, simple operation process, and reusable waste oil after cleaning. Background technique [0002] Crude oil contains low-molecular hydrocarbons and heavy organic matter (paraffin, asphaltenes, colloids, etc.), and is mixed with water, sediment and a small amount of mechanical impurities during the extraction and transfer of crude oil. After standing in the storage tank for a period of time, due to the difference in density, sludge will gradually form at the bottom of the tank. The bottom sludge in crude oil storage tanks is usually composed of inorganic sediments and organic sediments. Inorganic sediments include rust, sand, mud and wet carbon, etc.; organic sediments include crude oil, wax, asphalt, etc. Analyzing the sediments of crude oil storage tanks, it was found that crude oil and wax accounted f...

AI Technical Summary

Problems solved by technology

At present, the traditional domestic oil tank cleaning method mainly uses manual labor. Manual tank cleaning has problems such as high labor intensity, long construction period, poor safety, low crude oil recovery rate, and environmental pollution.