【Q&A Question 001】April 21, 2016
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This post was last edited and organized by liuquan1100 on 2017-7-22 at 11:01, creating hundreds of Q&A questions; one new question is added every day for everyone to discuss and learn from together. 【Q&A Question 001】April 21, 2016: Why is it necessary to protect crude oil in storage tanks? The answer key will be available after responding; scoring is based on answering the key points. Isolate from air to prevent gums, asphaltenes, and other substances in the crude oil from reacting with oxygen and forming polymers
The protective function of the crude oil is mainly to prevent contact with oxygen in the air
The reasons are as follows: 1. Crude oil is flammable; without nitrogen isolation for protection, fires and explosion accidents are likely to occur； 2. Crude oil contains light oil components that are volatile; without proper protection, this will affect the economic efficiency of refineries.
The main concern is that exposure to air can cause polymerization, increasing the viscosity of the substance and thus affecting the catalyst’s lifespan.
1. Protect oil products from oxidation； 2. Protect storage tanks by preventing corrosion, avoiding contamination of the oil, preventing deterioration in oil quality, reducing energy waste, minimizing environmental pollution, and also preventing hazards such as fires
Nitrogen protection prevents the olefins in the raw materials from coming into contact with oxygen, as well as preventing the feed pump from running dry
Oil storage tanks are placed outdoors, and oil is flammable when exposed to high temperatures; in summer, as these tanks absorb solar energy and their temperature rises, there is a risk of fire. Protective measures are taken for oil storage tanks to avoid hazards. White objects can reflect all colors of light and absorb very little solar energy; their \"silver-white appearance\" is intended to reflect sunlight ； Spraying water on the oil storage tank is done to cool it down; substances with strong heat absorption capabilities are required for this purpose. Water has a high specific heat capacity, meaning it can absorb a lot of heat. As it evaporates, it absorbs heat and thereby cools the oil storage tank, preventing the oil from reaching temperatures high enough to cause spontaneous combustion.
Prevent oxidation upon contact with oxygen; keep away from air to avoid flammability and explosiveness
Prevent the raw oil from deteriorating, oxidizing, and condensing. It affects subsequent processing performance and product quality.