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The core steps in refining crude oil into useful and valuable petroleum products include Preparation, Separation, Conversion, Treatment, and Blending.
Different characteristics of crude oil and the product mix needed affect these processes in a refinery.
Learn more about our online refining course.
Although I&#;m not an engineer, the course gave me many useful tools to understand the technicalities of the industry and now I can easily communicate with my contacts in the sector.
There&#;s plenty of content on this page to help you towards a better understanding of refining, refinery operations, and refining processes. The &#;What is Refining&#; video below gives a quick overview of this important downstream function.
Crude oil cannot be used as it occurs in nature, other than burning for fuel, which is wasteful, It must be refined to manufacture finished products such as gasoline and heating oil.
In the refinery, crude oil components can first be split by carefully applying heat to capture various parts, called fractions, within certain boiling ranges. This is called distillation. The quality of these initial fractions produced is not sufficient to be sold directly as petroleum products without further treatment.
Moreover, the yield of products from straight distillation of crude oil is not the same as the &#;demand barrel&#; needed for the marketplace. Crude oil must therefore be further processed using both heat and pressure to improve qualities and meet market demand.
A large part of refinery processing is concerned with converting unwanted heavy fuel oil into marketable gasoline and diesel, using various processing methods.
Upon completing the Refining 201 course, participants will be able to:
The history of refining innovation is really driven by the evolution of product demand.
The earliest petroleum refineries in the &#;s were really little more than stills &#; like those to make &#;moonshine&#; alcohol in the old movies!
They were designed to extract both kerosene from crude oil for use as lamp oil and petroleum grease, which at the time was exported around the world from the US. Whatever products remained, including gasoline, was treated as waste.
The advent of the internal combustion engine and the subsequent explosion in automotive transport changed everything. By the early &#;s the automobile and airplane were firmly established as major modes of transportation in the developed economies.
This growth forced global refiners to expand.
Along with an expansion in capacity, refiners also developed new refining technologies to increase yields of gasoline and other motor fuels. After the Second World War, rapid growth in jet fuel consumption also placed new demands on refineries around the world.
Today, refiners produce a wide range of fuels and specialty oils used in transportation, electricity generation, industrial processing, home heating, petrochemical production, and thousands of other uses.
These modern facilities cost billions of dollars to build. They can also incur billions of dollars in annual operating costs, to employ a variety of high pressure and high-temperature technologies which squeeze the most out of a barrel of crude oil.
This also gives refiners the flexibility required to meet shifting seasonal and global product demand patterns.
The rapidly growing emerging economies are now adopting the best of western refining technologies to meet the growing demand for their transportation fuels.
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The distillation of crude oil is the start of the refining process and is primarily a boiling operation.
Crude oil is first washed to remove salt, heated in a furnace, and introduced to the Crude Distillation Unit (called a CDU).
In this tower, the crude oil is separated by boiling range into a number of fractions.
A fraction is a term used for a specific hydrocarbon that is produced and captured according to its molecular weight and boiling point. Some fractions from the distillation process have all the qualities needed as refined products and are ready for sale.
Others require further processing before they are sold to customers.
The lightest fractions, like liquid petroleum gas (or LPG), are boiled off the crude at the lowest temperature of 150º F.
The second fraction boiled off is kerosene or distillates which occurs at 450º F.
Next is gas oil which is an intermediate fraction that requires further processing in the plant with temperatures reaching 750º F.
The heaviest fraction, with the highest boiling point in the distillation process, is fuel oil. These heavy fractions require more severe processing to be useful.
Our online refining courses cover key industry concepts to get your new hires up and running fast.
Along with an expansion in capacity, refiners developed new methods to increase yields of gasoline and other motor fuels. After the Second World War, rapid growth in jet fuel consumption also placed new demands on refineries around the world.
Today, refiners produce a wide range of fuels and specialty oils used in transportation, industry, electricity generation, heating, and petrochemical production, and in thousands of other uses.
These modern facilities, which cost billions of dollars to build and can incur billions of dollars in annual operating costs, employ a variety of technologies to squeeze the most out of a barrel of crude oil and to provide the flexibility required to meet shifting seasonal product demand patterns.
The rapidly growing emerging economies are rapidly adopting the best of western refining technologies to meet growing demand for transportation fuels.
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