Mailers who are sending flat-size mail (such as large envelopes) at Automation and Presorted First-Class Mail. prices. To use these prices, you must mail at least 500 pieces at a time, prepared and sorted according to Postal. Service guidelines.
From here, the liquid fractions are transported to other areas of the refinery for further. processing. Products from Petroleum. The products refined from the liquid fractions of crude oil can be placed into ten main categories. These main products are further refined to create materials more common to everyday life. The. ten main products of petroleum are: Asphalt. Asphalt is commonly used to make roads. It is a colloid of asphaltenes and maltenes that. is separated from the other components of crude oil by fractional distillation.
From Crude Oil. The oil refining process starts with a fractional distillation column. The problem with crude oil is that it contains hundreds of different types of hydrocarbons all mixed together. You have to separate the different types of hydrocarbons to have anything useful.Fortunately there is an easy way to separate things, and this is what oil refining is all about.o understand the diversity contained in crude oil, and to understand why refining crude oil is so important in our society, look through the following list of products that come from crude oil: Petroleum gas-used for heating, cooking, making plastics. 1  small alkanes (1 to 4 carbon atoms).