Black Gold: Fuel from crude oil

Posted October 9th, 2011 by Cuevas Dudea

Crude oil when pumped by an oil source consists of a mixture of hydrocarbon-based molecules of hydrogen and carbon atoms. To produce products of value for this mixture are hydrocarbons of various sizes separated by a process called distillation.

This involves heating the oil to over 1000 degrees Fahrenheit (540 degrees) in the bottom of the column fractionation tower 260 feet (80 meters) with the groups of collection trays at different heights. Hydrocarbon vapor cools as it moves into the column and condenses the trays. Higher hydrocarbons condense on the trays in the bottom of the column, and condensed hydrocarbons smaller in the higher councils.

Methane, ethane, propane and butane (which one, two, three and four carbon atoms, respectively) was collected from the top of the column. What is bottled and sold. Because these dangerous gases are odorless, the stinky sulfur compounds added for security reasons.

Liquids condensing small hills, gasoline, kerosene, gas oil (used for diesel and heating oil) and lubricating oil. Very large hydrocarbons that do not boil off at low pressure is redistilled separated wax, tar, and so on.

Other methods of treatment depend on customer demand. For example, to increase the amount of gasoline from crude oil, kids can be connected together to form the longest, largest and hydrocarbons can be decomposed into smaller ones. Hydrocarbons are also materials for plastics, herbicides and pesticides, detergents, dyes, cosmetics and textiles such as acrylic and polyester.

Gasoline, when you buy it, is a complex mixture of 200 items added to improve performance and help you burn more pure gas. For example, hydrocarbons, is added to increase the octane of fuel. This reduces the “pounding” that occurs when the fuel ignites spontaneously and not squeezing the spark plug.

Tetraethyl lead was added to reduce knocking in the past. It was banned because of health and was replaced by methyl tert-butyl ether (MTBE). Now ethanol to replace MTBE because of health concerns in the past.

Ethanol is the fuel for automobiles from corn or other starch or sugar. It is like the moon, maceration and fermentation of cereals, followed by distillation. Many engines can run on a blend of up to 10 percent ethanol in gasoline, and “flexible fuel vehicles” can run on blends of up to 85 percent ethanol.

Does it matter what fuel you use in your car, for engine performance and gas mileage is concerned?

Gasoline service providers to share pipelines, and various dealers fill their tankers at the same terminals. The fuel itself is the same. The only difference between brands is mixed with additives to gasoline, when it is pumped into tankers on the way the local gas station.

Since 1995, the U.S. Environmental Protection Agency authorized the detergent gasoline and set performance standards in order to detergents Control Engine deposits. Verification of deposits to improve fuel economy and reduce pollutants in engine exhaust.

Under the Clean Air Act and its amendments, the gasoline composition has undergone many changes. The first was the elimination of leaded gasoline. Average levels of lead in blood in the United States has fallen dramatically over the 15 years that the use of leaded gasoline has fallen from its peak to almost zero, reports the Centers for Disease Control and Prevention.

Later came the introduction of reformulated gasoline with more oxygen to increase fuel. The higher oxygen content through the use of oxygenates. Reformulated gasoline also has lower levels of benzene, a known carcinogen, and other contaminants. Reformulation of fuel is determined by federal and local mandates, instead of the brand.

Reformulation of the fuel is not the only factor responsible for the reduction of pollutants. A study of a decade of exhaust emissions, published in the journal Environmental Science and Technology, found that the reduction in the three main pollutants, carbon monoxide, nitrogen oxides and hydrocarbons were mainly the result of improving the systems on board control of the vehicle emissions. The researchers found similar improvements in emissions in the cities that the reformulated fuel mandate and no.

Since the composition of different brands of fuel varies little, many companies have tried to attract consumers by advertising their green credentials. For the classification of the Sierra Club environmental oil companies, see Pick Your Poison.

Barbara is a professional librarian. He has a Master of Science in Information Science at Florida State University. “Barbara10Broek wrote 38 articles. You can read more articles by this author Subscribe to the author’s diet, or Subscribe to our site.